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| W25X10A, W25X20A, W25X40A, W25X80A 1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI -1- Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A Table of Contents 1. 2. 3. 4. 5. 6. 7. GENERAL DESCRIPTION ......................................................................................................... 4 FEATURES ................................................................................................................................. 4 PIN CONFIGURATION SOIC 150-MIL....................................................................................... 5 PIN CONFIGURATION SOIC 208-MIL....................................................................................... 5 PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 5 PAD CONFIGURATION WSON 6X5-MM .................................................................................. 6 PIN DESCRIPTION..................................................................................................................... 6 7.1 7.2 7.3 7.4 7.5 7.6 7.7 8. 9. Package Types ............................................................................................................... 7 Chip Select (/CS) ............................................................................................................ 7 Serial Data Output (DO) ................................................................................................. 7 Write Protect (/WP)......................................................................................................... 7 HOLD (/HOLD) ............................................................................................................... 7 Serial Clock (CLK) .......................................................................................................... 7 Serial Data Input / Output (DIO) ..................................................................................... 7 BLOCK DIAGRAM ...................................................................................................................... 8 FUNCTIONAL DESCRIPTION ................................................................................................... 9 9.1 SPI OPERATIONS ......................................................................................................... 9 9.1.1 9.1.2 9.1.3 SPI Modes........................................................................................................................9 Dual Output SPI................................................................................................................9 Hold Function ...................................................................................................................9 Write Protect Features....................................................................................................10 9.2 10. WRITE PROTECTION.................................................................................................. 10 9.2.1 CONTROL AND STATUS REGISTERS................................................................................... 11 10.1 STATUS REGISTER .................................................................................................... 11 10.1.1 10.1.2 10.1.3 10.1.4 10.1.5 10.1.6 10.1.7 BUSY............................................................................................................................11 Write Enable Latch (WEL) ............................................................................................11 Block Protect Bits (BP2, BP1, BP0)..............................................................................11 Top/Bottom Block Protect (TB).....................................................................................11 Reserved Bits ...............................................................................................................11 Status Register Protect (SRP) ......................................................................................12 Status Register Memory Protection ..............................................................................13 Manufacturer and Device Identification.........................................................................14 Instruction Set...............................................................................................................15 Write Enable (06h)........................................................................................................16 Write Disable (04h).......................................................................................................16 Read Status Register (05h) ..........................................................................................17 10.2 INSTRUCTIONS........................................................................................................... 14 10.2.1 10.2.2 10.2.3 10.2.4 10.2.5 -2- W25X10A, W25X20A, W25X40A, W25X80A 10.2.6 10.2.7 10.2.8 10.2.9 10.2.10 10.2.11 10.2.12 10.2.13 10.2.14 10.2.15 10.2.16 10.2.17 Write Status Register (01h) ..........................................................................................18 Read Data (03h) ...........................................................................................................19 Fast Read (0Bh) ...........................................................................................................20 Fast Read Dual Output (3Bh) .......................................................................................21 Page Program (02h) ...................................................................................................22 Sector Erase (20h) .....................................................................................................23 Block Erase (D8h) ......................................................................................................24 Chip Erase (C7h)........................................................................................................25 Power-down (B9h) ......................................................................................................26 Release Power-down / Device ID (ABh) .....................................................................27 Read Manufacturer / Device ID (90h) .........................................................................29 JEDEC ID (9Fh)..........................................................................................................30 11. ELECTRICAL CHARACTERISTICS......................................................................................... 31 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 Absolute Maximum Ratings .......................................................................................... 31 Operating Ranges......................................................................................................... 31 Endurance and Data Retention .................................................................................... 32 Power-up Timing and Write Inhibit Threshold .............................................................. 32 DC Electrical Characteristics ........................................................................................ 33 AC Measurement Conditions........................................................................................ 34 AC Electrical Characteristics ........................................................................................ 35 AC Electrical Characteristics (cont'd) ........................................................................... 36 Serial Output Timing ..................................................................................................... 37 Input Timing................................................................................................................. 37 Hold Timing ................................................................................................................. 37 8-Pin SOIC 150-mil (Package Code SN)...................................................................... 38 8-Pin SOIC 208-mil (Package Code SS)...................................................................... 39 8-Pin PDIP 300-mil (Package Code DA) ...................................................................... 40 8-Pad WSON 6x5mm (Package Code ZP) .................................................................. 41 8-Pad WSON 6x5mm Cont'd........................................................................................ 42 12. PACKAGE SPECIFICATION .................................................................................................... 38 12.1 12.2 12.3 12.4 12.5 13. 14. ORDERING INFORMATION .................................................................................................... 43 REVISION HISTORY ................................................................................................................ 45 -3- Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 1. GENERAL DESCRIPTION The W25X10A (1M-bit), W25X20A (2M-bit), W25X40A (4M-bit) and W25X80A (8M-bit) Serial Flash memories provide a storage solution for systems with limited space, pins and power. The 25X series offers flexibility and performance well beyond ordinary Serial Flash devices. They are ideal for code download applications as well as storing voice, text and data. The devices operate on a single 2.7V to 3.6V power supply with current consumption as low as 5mA active and 1A for power-down. All devices are offered in space-saving packages. The W25X10A/20A/40A/80A array is organized into 512/1024/2048/4096 programmable pages of 256-bytes each. Up to 256 bytes can be programmed at a time using the Page Program instruction. Pages can be erased in groups of 16 (sector erase), groups of 256 (block erase) or the entire chip (chip erase). The W25X10A/20A/40A/80A has 32/64/128/256 erasable sectors and 2/4/8/16 erasable blocks respectively. The small 4KB sectors allow for greater flexibility in applications that require data and parameter storage. (See figure 2.) The W25X10A/20A/40A/80A supports the standard Serial Peripheral Interface (SPI), and a high performance dual output SPI using four pins: Serial Clock, Chip Select, Serial Data I/O and Serial Data Out. SPI clock frequencies of up to 100MHz are supported allowing equivalent clock rates of 200MHz when using the Fast Read Dual Output instruction. These transfer rates are comparable to those of 8 and 16-bit Parallel Flash memories. A Hold pin, Write Protect pin and programmable write protect, with top or bottom array control features, provide further control flexibility. Additionally, the device supports JEDEC standard manufacturer and device identification. 2. FEATURES * Family of Serial Flash Memories - W25X10A: 1M-bit / 128K-byte (131,072) - W25X20A: 2M-bit / 256K-byte (262,144) - W25X40A: 4M-bit / 512K-byte (524,288) - W25X80A: 8M-bit / 1M-byte (1,048,576) - 256-bytes per programmable page - Uniform 4K-byte Sectors / 64K-byte Blocks * SPI with Single or Dual Outputs - Clock, Chip Select, Data I/O, Data Out - Optional Hold function for SPI flexibility * Data Transfer up to 200M-bits / second - Clock operation to 100MHz - Fast Read Dual Output instruction - Auto-increment Read capability * Flexible Architecture with 4KB sectors - Sector Erase (4K-bytes) - Block Erase (64K-byte) - Page program up to 256 bytes <2ms - Up to 100,000 erase/write cycles - 20-year retention * Low Power Consumption, Wide Temperature Range - Single 2.7 to 3.6V supply - 5mA active current, 1A Power-down (typ) - -40 to +85C operating range * Software and Hardware Write Protection - Write-Protect all or portion of memory - Enable/Disable protection with /WP pin - Top or bottom array protection * Space Efficient Packaging - 8-pin SOIC 150-mil - 8-pin SOIC 208-mil (W25X40A/80A) - 8-pin PDIP 300-mil - 8-pad WSON 6x5-mm -4- W25X10A, W25X20A, W25X40A, W25X80A 3. PIN CONFIGURATION SOIC 150-MIL Figure 1a. W25X10A, W25X20A, W25X40A and W25X80A Pin Assignments, 8-pin SOIC (Package Code SN) 4. PIN CONFIGURATION SOIC 208-MIL Figure 1b. W25X40A and W25X80A Pin Assignments, 8-pin SOIC (Package Code SS) 5. PIN CONFIGURATION PDIP 300-MIL Figure 1c. W25X10A, W25X20A, W25X40A and W25X80A Pin Assignments, 8-pin PDIP (Package Code DA) -5- Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 6. PAD CONFIGURATION WSON 6X5-MM Figure 1d. W25X10A, W25X20A, W25X40A and W25X80A Pad Assignments, 8-pad WSON (Package Code ZP) 7. PIN DESCRIPTION SOIC 150-mil, SOIC 208-mil, PDIP 300-mil, and WSON 6x5-mm PIN NO. PIN NAME I/O FUNCTION 1 2 3 4 5 6 7 8 /CS DO /WP GND DIO CLK /HOLD VCC I O I I/O I I Chip Select Input Data Output Write Protect Input Ground Data Input / Output Serial Clock Input Hold Input Power Supply -6- W25X10A, W25X20A, W25X40A, W25X80A 7.1 Package Types At the time this datasheet was published not all package types had been finalized. Contact Winbond to confirm availability of these packages before designing to this specification. All parts are offered in an 8-pin plastic 150-mil width SOIC (package code SN) as shown in figure 1a. The W25X40A and W25X80A are offered in an 8-pin plastic 208-mil width SOIC (package code SS) as shown in figure 1b. All parts will also be offered in an 8-pin 300-mil DIP (package code DA) and an 8-pad 6x5-mm WSON (package code ZP) as shown in figure 1c, and 1d respectively. Package diagrams and dimensions are illustrated at the end of this datasheet. 7.2 Chip Select (/CS) The SPI Chip Select (/CS) pin enables and disables device operation. When /CS is high the device is deselected and the Serial Data Output (DO) pin is at high impedance. When deselected, the devices power consumption will be at standby levels unless an internal erase, program or status register cycle is in progress. When /CS is brought low the device will be selected, power consumption will increase to active levels and instructions can be written to and data read from the device. After power-up, /CS must transition from high to low before a new instruction will be accepted. The /CS input must track the VCC supply level at power-up (see "Write Protection" and figure 20). If needed a pull-up resister on /CS can be used to accomplish this. 7.3 Serial Data Output (DO) The SPI Serial Data Output (DO) pin provides a means for data and status to be serially read from (shifted out of) the device. Data is shifted out on the falling edge of the Serial Clock (CLK) input pin. 7.4 Write Protect (/WP) The Write Protect (/WP) pin can be used to prevent the Status Register from being written. Used in conjunction with the Status Register's Block Protect (BP2, BP1, and BP0) bits and Status Register Protect (SRP) bit, a portion or the entire memory array can be hardware protected. The /WP pin is active low. 7.5 HOLD (/HOLD) The Hold (/HOLD) pin allows the device to be paused while it is actively selected. When /HOLD is brought low, while /CS is low, the DO pin will be at high impedance and signals on the DIO and CLK pins will be ignored (don't care). When /HOLD is brought high, device operation can resume. The /HOLD function can be useful when multiple devices are sharing the same SPI signals. ("See Hold function") 7.6 Serial Clock (CLK) The SPI Serial Clock Input (CLK) pin provides the timing for serial input and output operations. ("See SPI Operations") 7.7 Serial Data Input / Output (DIO) The SPI Serial Data Input/Output (DIO) pin provides a means for instructions, addresses and data to be serially written to (shifted into) the device. Data is latched on the rising edge of the Serial Clock (CLK) input pin. The DIO pin is also used as an output when the Fast Read Dual Output instruction is executed. -7- Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 8. BLOCK DIAGRAM Figure 2. W25X10A, W25X20A, W25X40A and W25X80A Block Diagram -8- W25X10A, W25X20A, W25X40A, W25X80A 9. FUNCTIONAL DESCRIPTION 9.1 SPI OPERATIONS 9.1.1 SPI Modes The W25X10A/20A/40A/80A is accessed through an SPI compatible bus consisting of four signals: Serial Clock (CLK), Chip Select (/CS), Serial Data Input/Output (DIO) and Serial Data Output (DO). Both SPI bus operation Modes 0 (0,0) and 3 (1,1) are supported. The primary difference between Mode 0 and Mode 3 concerns the normal state of the CLK signal when the SPI bus master is in standby and data is not being transferred to the Serial Flash. For Mode 0 the CLK signal is normally low. For Mode 3 the CLK signal is normally high. In either case data input on the DIO pin is sampled on the rising edge of the CLK. Data on the DO and DIO pins are clocked out on the falling edge of CLK. 9.1.2 Dual Output SPI The W25X10A/20A/40A/80A supports Dual output operation when using the "Fast Read with Dual Output" (3B hex) instruction. This feature allows data to be transferred from the Serial Flash memory at twice the rate possible with the standard SPI. This instruction is ideal for quickly downloading code from Flash to RAM upon power-up (code-shadowing) or for applications that cache code-segments to RAM for execution. The Dual output feature simply allows the SPI input pin to also serve as an output during this instruction. All other operations use the standard SPI interface with single output signal. 9.1.3 Hold Function The /HOLD signal allows the W25X10A/20A/40A/80A operation to be paused while it is actively selected (when /CS is low). The /HOLD function may be useful in cases where the SPI data and clock signals are shared with other devices. For example, consider if the page buffer was only partially written when a priority interrupt requires use of the SPI bus. In this case the /HOLD function can save the state of the instruction and the data in the buffer so programming can resume where it left off once the bus is available again. To initiate a /HOLD condition, the device must be selected with /CS low. A /HOLD condition will activate on the falling edge of the /HOLD signal if the CLK signal is already low. If the CLK is not already low the /HOLD condition will activate after the next falling edge of CLK. The /HOLD condition will terminate on the rising edge of the /HOLD signal if the CLK signal is already low. If the CLK is not already low the /HOLD condition will terminate after the next falling edge of CLK. During a /HOLD condition, the Serial Data Output (DO) is high impedance, and Serial Data Input/Output (DIO) and Serial Clock (CLK) are ignored. The Chip Select (/CS) signal should be kept active (low) for the full duration of the /HOLD operation to avoid resetting the internal logic state of the device. -9- Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 9.2 WRITE PROTECTION Applications that use non-volatile memory must take into consideration the possibility of noise and other adverse system conditions that may compromise data integrity. To address this concern the W25X10A/20A/40A/80A provides several means to protect data from inadvertent writes. 9.2.1 * * * * * * * Write Protect Features Device resets when VCC is below threshold. Time delay write disable after Power-up. Write enable/disable instructions. Automatic write disable after program and erase. Software write protection using Status Register. Hardware write protection using Status Register and /WP pin. Write Protection using Power-down instruction. Upon power-up or at power-down the W25X10A/20A/40A/80A will maintain a reset condition while VCC is below the threshold value of VWI, (See Power-up Timing and Voltage Levels and Figure 20). While reset, all operations are disabled and no instructions are recognized. During power-up and after the VCC voltage exceeds VWI, all program and erase related instructions are further disabled for a time delay of tPUW. This includes the Write Enable, Page Program, Sector Erase, Block Erase, Chip Erase and the Write Status Register instructions. Note that the chip select pin (/CS) must track the VCC supply level at power-up until the VCC-min level and tVSL time delay is reached. If needed a pullup resister on /CS can be used to accomplish this. After power-up the device is automatically placed in a write-disabled state with the Status Register Write Enable Latch (WEL) set to a 0. A Write Enable instruction must be issued before a Page Program, Sector Erase, Chip Erase or Write Status Register instruction will be accepted. After completing a program, erase or write instruction the Write Enable Latch (WEL) is automatically cleared to a write-disabled state of 0. Software controlled write protection is facilitated using the Write Status Register instruction and setting the Status Register Protect (SRP) and Block Protect (TB, BP2, BP1, and BP0) bits. These Status Register bits allow a portion or all of the memory to be configured as read only. Used in conjunction with the Write Protect (/WP) pin, changes to the Status Register can be enabled or disabled under hardware control. See Status Register for further information. Additionally, the Power-down instruction offers an extra level of write protection as all instructions are ignored except for the Release Power-down instruction. - 10 - W25X10A, W25X20A, W25X40A, W25X80A 10. CONTROL AND STATUS REGISTERS The Read Status Register instruction can be used to provide status on the availability of the Flash memory array, if the device is write enabled or disabled, and the state of write protection. The Write Status Register instruction can be used to configure the device write protection features. See Figure 3. 10.1 STATUS REGISTER 10.1.1 BUSY BUSY is a read only bit in the status register (S0) that is set to a 1 state when the device is executing a Page Program, Sector Erase, Block Erase, Chip Erase or Write Status Register instruction. During this time the device will ignore further instructions except for the Read Status Register instruction (see tW, tPP, tSE, tBE, and tCE in AC Characteristics). When the program, erase or write status register instruction has completed, the BUSY bit will be cleared to a 0 state indicating the device is ready for further instructions. 10.1.2 Write Enable Latch (WEL) Write Enable Latch (WEL) is a read only bit in the status register (S1) that is set to a 1 after executing a Write Enable Instruction. The WEL status bit is cleared to a 0 when the device is write disabled. A write disable state occurs upon power-up or after any of the following instructions: Write Disable, Page Program, Sector Erase, Block Erase, Chip Erase and Write Status Register. 10.1.3 Block Protect Bits (BP2, BP1, BP0) The Block Protect Bits (BP2, BP1, and BP0) are non-volatile read/write bits in the status register (S4, S3, and S2) that provide Write Protection control and status. Block Protect bits can be set using the Write Status Register Instruction (see tW in AC characteristics). All, none or a portion of the memory array can be protected from Program and Erase instructions (see Status Register Memory Protection table). The factory default setting for the Block Protection Bits is 0, none of the array protected. The Block Protect bits can not be written to if the Status Register Protect (SRP) bit is set to 1 and the Write Protect (/WP) pin is low. 10.1.4 Top/Bottom Block Protect (TB) The Top/Bottom bit (TB) controls if the Block Protect Bits (BP2, BP1, BP0) protect from the Top (TB=0) or the Bottom (TB=1) of the array as shown in the Status Register Memory Protection table. The TB bit is non-volatile and the factory default setting is TB=0. The TB bit can be set with the Write Status Register Instruction provided that the Write Enable instruction has been issued. The TB bit can not be written to if the Status Register Protect (SRP) bit is set to 1 and the Write Protect (/WP) pin is low. 10.1.5 Reserved Bits Status register bit location S6 is reserved for future use. Current devices will read 0 for this bit location. It is recommended to mask out the reserved bit when testing the Status Register. Doing this will ensure compatibility with future devices. Publication Release Date: February 27, 2008 Revision B - 11 - W25X10A, W25X20A, W25X40A, W25X80A 10.1.6 Status Register Protect (SRP) The Status Register Protect (SRP) bit is a non-volatile read/write bit in status register (S7) that can be used in conjunction with the Write Protect (/WP) pin to disable writes to status register. When the SRP bit is set to a 0 state (factory default) the /WP pin has no control over status register. When the SRP pin is set to a 1, the Write Status Register instruction is locked out while the /WP pin is low. When the /WP pin is high the Write Status Register instruction is allowed. Figure 3. Status Register Bit Locations - 12 - W25X10A, W25X20A, W25X40A, W25X80A 10.1.7 Status Register Memory Protection STATUS REGISTER(1) TB BP2 BP1 BP0 W25X80A (8M-BIT) MEMORY PROTECTION BLOCK(S) ADDRESSES DENSITY PORTION x 0 0 0 0 1 1 1 1 x x 0 0 0 0 1 0 0 0 1 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 x NONE 15 14 and 15 12 thru 15 8 thru 15 0 0 and 1 0 thru 3 0 thru 7 0 thru 15 0 thru 15 NONE 0F0000h - 0FFFFFh 0E0000h - 0FFFFFh 0C0000h - 0FFFFFh 080000h - 0FFFFFh 000000h - 00FFFFh 000000h - 01FFFFh 000000h - 03FFFFh 000000h - 07FFFFh 000000h - 0FFFFFh 000000h - 0FFFFFh NONE 64KB 128KB 256KB 512KB 64KB 128KB 256KB 512KB 1MB 1MB NONE Upper 1/16 Upper 1/8 Upper 1/4 Upper 1/2 Lower 1/16 Lower 1/8 Lower 1/4 Lower 1/2 ALL ALL STATUS REGISTER(1) TB BP2 BP1 BP0 W25X40A (4M-BIT) MEMORY PROTECTION BLOCK(S) ADDRESSES DENSITY PORTION x 0 0 0 1 1 1 x 0 0 0 0 0 0 0 1 0 0 1 1 0 1 1 x 0 1 0 1 1 0 1 x NONE 7 6 and 7 4 thru 7 0 0 and 1 0 thru 3 0 thru 7 NONE 070000h - 07FFFFh 060000h - 07FFFFh 040000h - 07FFFFh 000000h - 00FFFFh 000000h - 01FFFFh 000000h - 03FFFFh 000000h - 07FFFFh NONE 64KB 128KB 256KB 64KB 128KB 256KB 512KB NONE Upper 1/8 Upper 1/4 Upper 1/2 Lower 1/8 Lower 1/4 Lower 1/2 ALL STATUS REGISTER(1) TB BP2 BP1 BP0 BLOCK(S) W25X20A (2M-BIT) MEMORY PROTECTION ADDRESSES DENSITY PORTION x 0 0 1 1 x x x x x x x 0 0 1 0 1 1 0 1 0 1 0 1 NONE 3 2 and 3 0 0 and 1 0 thru 3 NONE 030000h - 03FFFFh 020000h - 03FFFFh 000000h - 00FFFFh 000000h - 01FFFFh 000000h - 03FFFFh NONE 64KB 128KB 64KB 128KB 256KB NONE Upper 1/4 Upper 1/2 Lower 1/4 Lower 1/2 ALL STATUS REGISTER(1) TB BP2 BP1 BP0 BLOCK(S) W25X10A (1M-BIT) MEMORY PROTECTION ADDRESSES DENSITY PORTION x 0 1 x x x x x 0 0 0 1 0 1 1 x NONE 1 0 0 and 1 NONE 010000h - 01FFFFh 000000h - 00FFFFh 000000h - 01FFFFh NONE 64KB 64KB 128KB NONE Upper 1/2 Lower 1/2 ALL Note: 1. x = don't care - 13 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2 INSTRUCTIONS The instruction set of the W25X10A/20A/40A/80A consists of fifteen basic instructions that are fully controlled through the SPI bus (see Instruction Set table). Instructions are initiated with the falling edge of Chip Select (/CS). The first byte of data clocked into the DIO input provides the instruction code. Data on the DIO input is sampled on the rising edge of clock with most significant bit (MSB) first. Instructions vary in length from a single byte to several bytes and may be followed by address bytes, data bytes, dummy bytes (don't care), and in some cases, a combination. Instructions are completed with the rising edge of edge /CS. Clock relative timing diagrams for each instruction are included in figures 4 through 19. All read instructions can be completed after any clocked bit. However, all instructions that Write, Program or Erase must complete on a byte boundary (CS driven high after a full 8-bits have been clocked) otherwise the instruction will be terminated. This feature further protects the device from inadvertent writes. Additionally, while the memory is being programmed or erased, or when the Status Register is being written, all instructions except for Read Status Register will be ignored until the program or erase cycle has completed. 10.2.1 Manufacturer and Device Identification MANUFACTURER ID (M7-M0) Winbond Serial Flash EFh Device ID Instruction W25X10A W25X20A W25X40A W25X80A (ID7-ID0) ABh, 90h 10h 11h 12h 13h (ID15-ID0) 9Fh 3011h 3012h 3013h 3014h - 14 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.2 Instruction Set (1) INSTRUCTION NAME Write Enable Write Disable Read Status Register Write Status Register Read Data Fast Read BYTE 1 CODE 06h 04h 05h 01h 03h 0Bh (S7-S0)(1) S7-S0 A23-A16 A23-A16 A15-A8 A15-A8 A7-A0 A7-A0 (D7-D0) dummy (Next byte) (D7-D0) I/O = (D6,D4,D2,D0) O= (D7,D5,D3,D1) (Next byte) continuous (Next Byte) continuous (one byte per 4 clocks, continuous) Up to 256 bytes (2) BYTE 2 BYTE 3 BYTE 4 BYTE 5 BYTE 6 N-BYTES Fast Read Dual Output 3Bh A23-A16 A15-A8 A7-A0 dummy Page Program Block Erase (64KB) Sector Erase (4KB) Chip Erase Power-down Release Powerdown / Device ID Manufacturer/ Device ID (3) 02h D8h 20h C7h/60h B9h ABh 90h A23-A16 A23-A16 A23-A16 A15-A8 A15-A8 A15-A8 A7-A0 A7-A0 A7-A0 (D7-D0) dummy dummy dummy dummy (ID15ID8) Memory Type dummy 00h (ID7-ID0)(4) (M7-M0) (ID7-ID0) JEDEC ID 9Fh (M7-M0) Manufacturer (ID7-ID0) Capacity Notes: 1. Data bytes are shifted with Most Significant Bit first. Byte fields with data in parenthesis "( )" indicate data being read from the device on the DO pin. 2. The Status Register contents will repeat continuously until /CS terminates the instruction. 3. See Manufacturer and Device Identification table for Device ID information. 4. The Device ID will repeat continuously until /CS terminates the instruction. - 15 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.3 Write Enable (06h) The Write Enable instruction (Figure 4) sets the Write Enable Latch (WEL) bit in the Status Register to a 1. The WEL bit must be set prior to every Page Program, Sector Erase, Block Erase, Chip Erase and Write Status Register instruction. The Write Enable instruction is entered by driving /CS low, shifting the instruction code "06h" into the Data Input (DI) pin on the rising edge of CLK, and then driving /CS high. Figure 4. Write Enable Instruction Sequence Diagram 10.2.4 Write Disable (04h) The Write Disable instruction (Figure 5) resets the Write Enable Latch (WEL) bit in the Status Register to a 0. The Write Disable instruction is entered by driving /CS low, shifting the instruction code "04h" into the DIO pin and then driving /CS high. Note that the WEL bit is automatically reset after Power-up and upon completion of the Write Status Register, Page Program, Sector Erase, Block Erase and Chip Erase instructions. Figure 5. Write Disable Instruction Sequence Diagram - 16 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.5 Read Status Register (05h) The Read Status Register instruction allows the 8-bit Status Register to be read. The instruction is entered by driving /CS low and shifting the instruction code "05h" into the DIO pin on the rising edge of CLK. The status register bits are then shifted out on the DO pin at the falling edge of CLK with most significant bit (MSB) first as shown in figure 6. The Status Register bits are shown in figure 3 and include the BUSY, WEL, BP2-BP0, TB and SRP bits (see description of the Status Register earlier in this datasheet). The Status Register instruction may be used at any time, even while a Program, Erase or Write Status Register cycle is in progress. This allows the BUSY status bit to be checked to determine when the cycle is complete and if the device can accept another instruction. The Status Register can be read continuously, as shown in Figure 6. The instruction is completed by driving /CS high. Figure 6. Read Status Register Instruction Sequence Diagram - 17 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.6 Write Status Register (01h) The Write Status Register instruction allows the Status Register to be written. A Write Enable instruction must previously have been executed for the device to accept the Write Status Register Instruction (Status Register bit WEL must equal 1). Once write enabled, the instruction is entered by driving /CS low, sending the instruction code "01h", and then writing the status register data byte as illustrated in figure 7. The Status Register bits are shown in figure 3 and described earlier in this datasheet. Only non-volatile Status Register bits SRP, TB, BP2, BP1 and BP0 (bits 7, 5, 4, 3 and 2) can be written to. All other Status Register bit locations are read-only and will not be affected by the Write Status Register instruction. The /CS pin must be driven high after the eighth bit of the last byte has been latched. If this is not done the Write Status Register instruction will not be executed. After /CS is driven high, the self-timed Write Status Register cycle will commence for a time duration of tW (See AC Characteristics). While the Write Status Register cycle is in progress, the Read Status Register instruction may still accessed to check the status of the BUSY bit. The BUSY bit is a 1 during the Write Status Register cycle and a 0 when the cycle is finished and ready to accept other instructions again. After the Write Register cycle has finished the Write Enable Latch (WEL) bit in the Status Register will be cleared to 0. The Write Status Register instruction allows the Block Protect bits (TB, BP2, BP1 and BP0) to be set for protecting all, a portion, or none of the memory from erase and program instructions. Protected areas become read-only (see Status Register Memory Protection table). The Write Status Register instruction also allows the Status Register Protect bit (SRP) to be set. This bit is used in conjunction with the Write Protect (/WP) pin to disable writes to the status register. When the SRP bit is set to a 0 state (factory default) the /WP pin has no control over the status register. When the SRP pin is set to a 1, the Write Status Register instruction is locked out while the /WP pin is low. When the /WP pin is high the Write Status Register instruction is allowed. Figure 7. Write Status Register Instruction Sequence Diagram - 18 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.7 Read Data (03h) The Read Data instruction allows one more data bytes to be sequentially read from the memory. The instruction is initiated by driving the /CS pin low and then shifting the instruction code "03h" followed by a 24-bit address (A23-A0) into the DIO pin. The code and address bits are latched on the rising edge of the CLK pin. After the address is received, the data byte of the addressed memory location will be shifted out on the DO pin at the falling edge of CLK with most significant bit (MSB) first. The address is automatically incremented to the next higher address after each byte of data is shifted out allowing for a continuous stream of data. This means that the entire memory can be accessed with a single instruction as long as the clock continues. The instruction is completed by driving /CS high. The Read Data instruction sequence is shown in figure 8. If a Read Data instruction is issued while an Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have any effects on the current cycle. The Read Data instruction allows clock rates from D.C. to a maximum of fR (see AC Electrical Characteristics). Figure 8. Read Data Instruction Sequence Diagram - 19 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.8 Fast Read (0Bh) The Fast Read instruction is similar to the Read Data instruction except that it can operate at the highest possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding eight "dummy" clocks after the 24-bit address as shown in figure 9. The dummy clocks allow the devices internal circuits additional time for setting up the initial address. During the dummy clocks the data value on the DIO pin is a "don't care". Figure 9. Fast Read Instruction Sequence Diagram - 20 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.9 Fast Read Dual Output (3Bh) The Fast Read Dual Output (3Bh) instruction is similar to the standard Fast Read (0Bh) instruction except that data is output on two pins, DO and DIO, instead of just DO. This allows data to be transferred from the W25X10A/20A/40A/80A at twice the rate of standard SPI devices. The Fast Read Dual Output instruction is ideal for quickly downloading code from Flash to RAM upon power-up or for applications that cache code-segments to RAM for execution. Similar to the Fast Read instruction, the Fast Read Dual Output instruction can operate at the highest possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding eight "dummy" clocks after the 24-bit address as shown in figure 10. The dummy clocks allow the device's internal circuits additional time for setting up the initial address. The input data during the dummy clocks is "don't care". However, the DIO pin should be high-impedance prior to the falling edge of the first data out clock. Figure 10. Fast Read Dual Output Instruction Sequence Diagram - 21 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.10 Page Program (02h) The Page Program instruction allows up to 256 bytes of data to be programmed at previously erased to all 1s (FFh) memory locations. A Write Enable instruction must be executed before the device will accept the Page Program Instruction (Status Register bit WEL must equal 1). The instruction is initiated by driving the /CS pin low then shifting the instruction code "02h" followed by a 24-bit address (A23-A0) and at least one data byte, into the DIO pin. The /CS pin must be held low for the entire length of the instruction while data is being sent to the device. If an entire 256 byte page is to be programmed, the last address byte (the 8 least significant address bits) should be set to 0. If the last address byte is not zero, and the number of clocks exceed the remaining page length, the addressing will wrap to the beginning of the page. In some cases, less than 256 bytes (a partial page) can be programmed without having any effect on other bytes within the same page. One condition to perform a partial page program is that the number of clocks can not exceed the remaining page length. If more than 256 bytes are sent to the device the addressing will wrap to the beginning of the page and overwrite previously sent data. As with the write and erase instructions, the /CS pin must be driven high after the eighth bit of the last byte has been latched. If this is not done the Page Program instruction will not be executed. After /CS is driven high, the self-timed Page Program instruction will commence for a time duration of tpp (See AC Characteristics). While the Page Program cycle is in progress, the Read Status Register instruction may still be accessed for checking the status of the BUSY bit. The BUSY bit is a 1 during the Page Program cycle and becomes a 0 when the cycle is finished and the device is ready to accept other instructions again. After the Page Program cycle has finished the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. The Page Program instruction will not be executed if the addressed page is protected by the Block Protect (BP2, BP1, and BP0) bits (see Status Register Memory Protection table). Figure 11. Page Program Instruction Sequence Diagram - 22 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.11 Sector Erase (20h) The Sector Erase instruction sets all memory within a specified sector (4K-bytes) to the erased state of all 1s (FFh). A Write Enable instruction must be executed before the device will accept the Sector Erase Instruction (Status Register bit WEL must equal 1). The instruction is initiated by driving the /CS pin low and shifting the instruction code "20h" followed a 24-bit sector address (A23-A0) (see Figure 2). The Sector Erase instruction sequence is shown in figure 12. The /CS pin must be driven high after the eighth bit of the last byte has been latched. If this is not done the Sector Erase instruction will not be executed. After /CS is driven high, the self-timed Sector Erase instruction will commence for a time duration of tSE (See AC Characteristics). While the Sector Erase cycle is in progress, the Read Status Register instruction may still be accessed for checking the status of the BUSY bit. The BUSY bit is a 1 during the Sector Erase cycle and becomes a 0 when the cycle is finished and the device is ready to accept other instructions again. After the Sector Erase cycle has finished the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. The Sector Erase instruction will not be executed if the addressed page is protected by the Block Protect (TB, BP2, BP1, and BP0) bits (see Status Register Memory Protection table). Figure 12. Sector Erase Instruction Sequence Diagram - 23 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.12 Block Erase (D8h) The Block Erase instruction sets all memory within a specified block (64K-bytes) to the erased state of all 1s (FFh). A Write Enable instruction must be executed before the device will accept the Block Erase Instruction (Status Register bit WEL must equal 1). The instruction is initiated by driving the /CS pin low and shifting the instruction code "D8h" followed a 24-bit block address (A23-A0) (see Figure 2). The Block Erase instruction sequence is shown in figure 13. The /CS pin must be driven high after the eighth bit of the last byte has been latched. If this is not done the Block Erase instruction will not be executed. After /CS is driven high, the self-timed Block Erase instruction will commence for a time duration of tBE (See AC Characteristics). While the Block Erase cycle is in progress, the Read Status Register instruction may still be accessed for checking the status of the BUSY bit. The BUSY bit is a 1 during the Block Erase cycle and becomes a 0 when the cycle is finished and the device is ready to accept other instructions again. After the Block Erase cycle has finished the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. The Block Erase instruction will not be executed if the addressed page is protected by the Block Protect (TB, BP2, BP1, and BP0) bits (see Status Register Memory Protection table). Figure 13. Block Erase Instruction Sequence Diagram - 24 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.13 Chip Erase (C7h or 60h) The Chip Erase instruction sets all memory within the device to the erased state of all 1s (FFh). A Write Enable instruction must be executed before the device will accept the Chip Erase Instruction (Status Register bit WEL must equal 1). The instruction is initiated by driving the /CS pin low and shifting the instruction code "C7h" or "60h". The Chip Erase instruction sequence is shown in figure 14. The /CS pin must be driven high after the eighth bit has been latched. If this is not done the Chip Erase instruction will not be executed. After /CS is driven high, the self-timed Chip Erase instruction will commence for a time duration of tCE (See AC Characteristics). While the Chip Erase cycle is in progress, the Read Status Register instruction may still be accessed to check the status of the BUSY bit. The BUSY bit is a 1 during the Chip Erase cycle and becomes a 0 when finished and the device is ready to accept other instructions again. After the Chip Erase cycle has finished the Write Enable Latch (WEL) bit in the Status Register is cleared to 0. The Chip Erase instruction will not be executed if any page is protected by the Block Protect (BP2, BP1, and BP0) bits (see Status Register Memory Protection table). Figure 14. Chip Erase Instruction Sequence Diagram - 25 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.14 Power-down (B9h) Although the standby current during normal operation is relatively low, standby current can be further reduced with the Power-down instruction. The lower power consumption makes the Power-down instruction especially useful for battery powered applications (See ICC1 and ICC2 in AC Characteristics). The instruction is initiated by driving the /CS pin low and shifting the instruction code "B9h" as shown in figure 15. The /CS pin must be driven high after the eighth bit has been latched. If this is not done the Powerdown instruction will not be executed. After /CS is driven high, the power-down state will entered within the time duration of tDP (See AC Characteristics). While in the power-down state only the Release from Power-down / Device ID instruction, which restores the device to normal operation, will be recognized. All other instructions are ignored. This includes the Read Status Register instruction, which is always available during normal operation. Ignoring all but one instruction makes the Power Down state a useful condition for securing maximum write protection. The device always powers-up in the normal operation with the standby current of ICC1. Figure 15. Deep Power-down Instruction Sequence Diagram - 26 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.15 Release Power-down / Device ID (ABh) The Release from Power-down / Device ID instruction is a multi-purpose instruction. It can be used to release the device from the power-down state, obtain the devices electronic identification (ID) number or do both. When used only to release the device from the power-down state, the instruction is issued by driving the /CS pin low, shifting the instruction code "ABh" and driving /CS high as shown in figure 16. After the time duration of tRES1 (See AC Characteristics) the device will resume normal operation and other instructions will be accepted. The /CS pin must remain high during the tRES1 time duration. When used only to obtain the Device ID while not in the power-down state, the instruction is initiated by driving the /CS pin low and shifting the instruction code "ABh" followed by 3-dummy bytes. The Device ID bits are then shifted out on the falling edge of CLK with most significant bit (MSB) first as shown in figure 17. The Device ID values for the W25X10A, W25X20A, W25X40A and W25X80A are listed in Manufacturer and Device Identification table. The Device ID can be read continuously. The instruction is completed by driving /CS high. When used to release the device from the power-down state and obtain the Device ID, the instruction is the same as previously described, and shown in figure 17, except that after /CS is driven high it must remain high for a time duration of tRES2 (See AC Characteristics). After this time duration the device will resume normal operation and other instructions will be accepted. If the Release from Power-down / Device ID instruction is issued while an Erase, Program or Write cycle is in process (when BUSY equals 1) the instruction is ignored and will not have any effects on the current cycle Figure 16. Release Power-down Instruction Sequence - 27 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A Figure 17. Release Power-down / Device ID Instruction Sequence Diagram - 28 - W25X10A, W25X20A, W25X40A, W25X80A 10.2.16 Read Manufacturer / Device ID (90h) The Read Manufacturer/Device ID instruction is an alternative to the Release from Power-down/ Device ID instruction that provides both JEDEC assigned manufacturer ID and the specific device ID. The Read Manufacturer/Device ID instruction is very similar to the Release from Power-down / Device ID instruction. The instruction is initiated by driving the /CS pin low and shifting the instruction code "90h" followed by a 24-bit address (A23-A0) of 000000h. After which, the Manufacturer ID for Winbond (EFh) and the Device ID are shifted out on the falling edge of CLK with most significant bit (MSB) first as shown in figure 18. The Device ID values for the W25X10A, W25X20A, W25X40A and W25X80A are listed in Manufacturer and Device Identification table. If the 24-bit address is initially set to 000001h the Device ID will be read first and then followed by the Manufacturer ID. The Manufacturer and Device IDs can be read continuously, alternating from one to the other. The instruction is completed by driving /CS high. Figure 18. Read Manufacturer / Device ID Diagram - 29 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 10.2.17 JEDEC ID (9Fh) For compatibility reasons, the W25X10A/20A/40A/80A provides several instructions to electronically determine the identity of the device. The Read JEDEC ID instruction is compatible with the JEDEC standard for SPI compatible serial memories that was adopted in 2003. The instruction is initiated by driving the /CS pin low and shifting the instruction code "9Fh". The JEDEC assigned Manufacturer ID byte for Winbond (EFh) and two Device ID bytes, Memory Type (ID15-ID8) and Capacity (ID7-ID0) are then shifted out on the falling edge of CLK with most significant bit (MSB) first as shown in figure 19. For memory type and capacity values refer to Manufacturer and Device Identification table. Figure 19. Read JEDEC ID - 30 - W25X10A, W25X20A, W25X40A, W25X80A 11. ELECTRICAL CHARACTERISTICS(1) 11.1 Absolute Maximum Ratings (2) PARAMETERS SYMBOL CONDITIONS RANGE UNIT Supply Voltage Voltage Applied to Any Pin Transient Voltage on any Pin Storage Temperature Lead Temperature Electrostatic Discharge Voltage Notes: VCC VIO VIOT TSTG TLEAD VESD Human Body Model(4) Relative to Ground <20nS Transient Relative to Ground -0.6 to +4.0 -0.6 to VCC +0.4 -2.0V to VCC+2.0V -65 to +150 See Note (3) V V V C C V -2000 to +2000 1. Specification for W25X10A, W25X20A, W25X40A and W25X80A is preliminary. See preliminary designation at the end of this document. 2. This device has been designed and tested for the specified operation ranges. Proper operation outside of these levels is not guaranteed. Exposure to absolute maximum ratings may affect device reliability. Exposure beyond absolute maximum ratings may cause permanent damage. 3. Compliant with JEDEC Standard J-STD-20C for small body Sn-Pb or Pb-free (Green) assembly and the European directive on restrictions on hazardous substances (RoHS) 2002/95/EU. 4. JEDEC Std JESD22-A114A (C1=100 pF, R1=1500 ohms, R2=500 ohms). 11.2 Operating Ranges PARAMETER SYMBOL CONDITIONS SPEC MIN MAX UNIT Supply Voltage(1) Ambient Temperature, Operating Note: VCC TA FR0 = 75MHz, fR = 50MHz FR1 = 100MHz, fR = 50MHz Commercial (2) Industrial 2.7 3.0 0 -40 3.6 3.6 +70 +85 V C 1. VCC voltage during Read can operate across the min and max range but should not exceed 10% of the programming (erase/write) voltage. 2. Commercial temperature only applies to Fast Read (FR1) and 100K cycles endurance for 4K byte sectors . Industrial temperature applies to all other parameters. - 31 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 11.3 Endurance and Data Retention PARAMETER CONDITIONS MIN MAX UNIT Erase/Program Cycles Data Retention 4KB sector, 64KB block or full chip. 55C 100,000 20 cycles years 11.4 Power-up Timing and Write Inhibit Threshold PARAMETER SYMBOL SPEC MIN MAX UNIT VCC (min) to /CS Low Time Delay Before Write Instruction Write Inhibit Threshold Voltage Note: 1. These parameters are characterized only. tVSL(1) tPUW VWI (1) (1) 10 1 1 10 2 s ms V Figure 20. Power-up Timing and Voltage Levels - 32 - W25X10A, W25X20A, W25X40A, W25X80A 11.5 DC Electrical Characteristics PARAMETER SYMBOL CONDITIONS SPEC MIN TYP MAX UNIT Input Capacitance Output Capacitance Input Leakage I/O Leakage Standby Current Power-down Current Current Read Data / Dual Output 1MHz(2) Current Read Data / Dual Output 33MHz(2) Current Read Data / Dual Output 50MHz(2) Current Read Data / Dual Output 75MHz(2) Current Read Data / Dual Output 100MHz(2) Current Write Status Register Current Sector/Block Erase Current Chip Erase Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Notes: CIN(1) Cout ILI ILO ICC1 ICC2 ICC3 ICC3 ICC3 ICC3 ICC3 (1) VIN = 0V(2) VOUT = 0V (2) 6 8 2 2 pF pF A A A A mA mA mA mA mA mA mA mA mA V V V V /CS = VCC, VIN = GND or VCC /CS = VCC, VIN = GND or VCC C = 0.1 VCC / 0.9 VCC DO = Open C = 0.1 VCC / 0.9 VCC DO = Open C = 0.1 VCC / 0.9 VCC DO = Open C = 0.1 VCC / 0.9 VCC DO = Open C = 0.1 VCC / 0.9 VCC DO = Open /CS = VCC /CS = VCC /CS = VCC /CS = VCC -0.5 VCCx0.7 IOL = 1.6 mA IOH = -100 A VCC-0.2 25 <1 4/5 6/7 7/8 10/11 12/13 20 8 20 20 50 10 6/7.5 9/10 10/12 15/16.5 17/18 25 12 25 25 VCCx0.3 VCC+0.4 0.4 Current Page Program ICC4 ICC5 ICC6 ICC7 VIL VIH VOL VOH 1. Tested on sample basis and specified through design and characterization data. TA=25C, VCC=3V. 2. Checker Board Pattern. - 33 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 11.6 AC Measurement Conditions PARAMETER SYMBOL SPEC MIN MAX UNIT Load Capacitance Load Capacitance for FR1 only Input Rise and Fall Times Input Pulse Voltages Input Timing Reference Voltages Output Timing Reference Voltages Note: CL TR, TF VIN IN 30 15 5 0.2 VCC to 0.8 VCC 0.3 VCC to 0.7 VCC 0.5 VCC to 0.5 VCC pF ns V V V OUT 1. Output Hi-Z is defined as the point where data out is no longer driven. Figure 21. AC Measurement I/O Waveform - 34 - W25X10A, W25X20A, W25X40A, W25X80A 11.7 AC Electrical Characteristics DESCRIPTION SYMBOL ALT MIN SPEC TYP MAX UNIT Clock frequency for all instructions, except Read Data (03h) 2.7V-3.6V VCC & Industrial Temperature Clock frequency, for Fast Read (0Bh, 3Bh) only 3.0V-3.6V VCC & Commercial Temperature Clock freq. Read Data instruction 03h Clock High, Low Time, for Fast Read (0Bh, 3Bh) / other instructions except Read Data (03h) Clock High, Low Time for Read Data (03h) instruction Clock Rise Time peak to peak Clock Fall Time peak to peak /CS Active Setup Time relative to CLK /CS Not Active Hold Time relative to CLK Data In Setup Time Data In Hold Time /CS Active Hold Time relative to CLK /CS Not Active Setup Time relative to CLK /CS Deselect Time (for Array Read Array Read / Erase or Program Read Status Register) Output Disable Time Clock Low to Output Valid Output Hold Time FR0 fC0 D.C. 75 MHz FR1 (4) fR tCLH, tCLL(1) tCRLH, tCRLL(1) tCLCH(2) tCHCL(2) tSLCH tCHSL tDVCH tCHDX tCHSH tSHCH tSHSL tSHQZ(2) tCLQV tCLQX fC1 D.C. D.C. 4.5 8 0.1 0.1 100 50 MHz MHz ns ns V/ns V/ns ns ns ns ns ns ns ns tCSS 5 5 tDSU tDH 2 5 5 5 tCSH tDIS tV tHO 50/100 7 7 0 Continued - next page ns ns ns - 35 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 11.8 AC Electrical Characteristics (cont'd) DESCRIPTION SYMBOL ALT MIN SPEC TYP MAX UNIT /HOLD Active Setup Time relative to CLK /HOLD Active Hold Time relative to CLK /HOLD Not Active Setup Time relative to CLK /HOLD Not Active Hold Time relative to CLK /HOLD to Output Low-Z /HOLD to Output High-Z Write Protect Setup Time Before /CS Low Write Protect Hold Time After /CS High /CS High to Power-down Mode /CS High to Standby Mode without Electronic Signature Read /CS High to Standby Mode with Electronic Signature Read Write Status Register Time Byte Program Time (First Byte) (5) Additional Byte Program Time (After First Byte) (5) Page Program Time Sector Erase Time (4KB) Block Erase Time (64KB) Chip Erase Time W25X10A / W25X20A Chip Erase Time W25X40A Chip Erase Time W25X80A Notes: 1. 2. 3. 4. 5. Clock high + Clock low must be less than or equal to 1/fC. tHLCH tCHHH tHHCH tCHHL tHHQX(2) tHLQZ(2) tWHSL(3) tSHWL(3) tDP(2) tRES1(2) tRES2(2) tW tBP1 tBP2 tPP tSE tBE tCE tLZ tHZ 5 5 5 5 7 12 20 100 3 3 1.8 10 30 6 1.5 120 0.4 1.5 3 6 15 50 12 3 250 1 3 5 10 ns ns ns ns ns ns ns ns s s s ms s s ms ms s s s s Value guaranteed by design and/or characterization, not 100% tested in production. Only applicable as a constraint for a Write Status Register instruction when Sector Protect Bit is set to 1. Commercial temperature only applies to Fast Read (FR1). Industrial temperature applies to all other parameters. For multiple bytes after first byte within a page, tBPN = tBP1 + tBP2 * N (typical) and tBPN = tBP1 + tBP2 * N (max), where N = number of bytes programmed. - 36 - W25X10A, W25X20A, W25X40A, W25X80A 11.9 Serial Output Timing 11.10 Input Timing 11.11 Hold Timing - 37 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 12. PACKAGE SPECIFICATION 12.1 8-Pin SOIC 150-mil (Package Code SN) SYMBOL A A1 A2 b C D(3) E E1(3) e(2) L CP MILLIMETERS MIN 1.47 0.10 --0.33 0.19 4.80 5.80 3.80 INCHES MAX 1.72 0.24 --0.50 0.25 4.95 6.19 4.00 TYP. 1.60 --1.45 0.41 0.20 4.85 6.00 3.90 1.27 BSC MIN 0.058 0.004 --0.013 0.0075 0.189 0.228 0.150 TYP. 0.063 --0.057 0.016 0.008 0.191 0.236 0.154 0.050 BSC MAX 0.068 0.009 --0.020 0.0098 0.195 0.244 0.157 0.40 0o --- 0.71 ----- 1.27 8o 0.10 0.015 0o --- 0.028 ----- 0.050 8o 0.004 Notes: 1. Controlling dimensions: inches, unless otherwise specified. 2. BSC = Basic lead spacing between centers. 3. Dimensions D and E1 do not include mold flash protrusions and should be measured from the bottom of the package. 4. Formed leads shall be planar with respect to one another within .0004 inches at the seating plane. - 38 - W25X10A, W25X20A, W25X40A, W25X80A 12.2 8-Pin SOIC 208-mil (Package Code SS) SYMBOL A A1 A2 b C D(3) E E1(3) e(2) L y MILLIMETERS MIN 1.75 0.05 1.70 0.35 0.19 5.18 7.70 5.18 MAX 2.16 0.25 1.91 0.48 0.25 5.38 8.10 5.38 INCHES MIN 0.069 0.002 0.067 0.014 0.007 0.204 0.303 0.204 MAX 0.085 0.010 0.075 0.019 0.010 0.212 0.319 0.212 1.27 BSC 0.50 0o --0.80 8o 0.10 0.050 BSC 0.020 0o --0.031 8o 0.004 Notes: 1. Controlling dimensions: inches, unless otherwise specified. 2. BSC = Basic lead spacing between centers. 3. Dimensions D and E1 do not include mold flash protrusions and should be measured from the bottom of the package. 4. Formed leads shall be planar with respect to one another within .0004 inches at the seating plane. - 39 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 12.3 8-Pin PDIP 300-mil (Package Code DA) 8 5 Seating Plane Base Plane B1 A2 A E1 L 1 D E 4 S e1 A1 B C MILLIMETERS MIN --0.25 3.18 0.41 1.47 0.20 --7.37 6.22 2.29 3.05 0 8.51 --TYP. ----3.30 0.46 1.52 0.25 9.14 7.62 6.35 2.54 3.30 --9.02 --MAX 4.45 --3.43 0.56 1.63 0.36 9.65 7.87 6.48 2.79 3.56 15 9.53 1.14 MIN --0.010 0.125 0.016 0.058 0.008 --0.290 0.245 0.090 0.120 0 0.335 --- eA SYMBOL A A1 A2 B B1 c D E E1 e1 L eA S INCHES TYP. ----0.130 0.018 0.060 0.010 0.360 0.300 0.250 0.100 0.130 --0.355 --MAX 0.175 --0.135 0.022 0.064 0.014 0.380 0.310 0.255 0.110 0.140 15 0.375 0.045 - 40 - W25X10A, W25X20A, W25X40A, W25X80A 12.4 8-Pad WSON 6x5mm (Package Code ZP) SYMBOL MIN A A1 A2 A3 b D(3) D1 E E1(3) e(2) K L 0.20 0.50 0.19 0.36 5.90 3.30 4.90 4.20 0.70 0.00 MILLIMETERS TYP. 0.75 0.02 0.55 .0.20 0.40 6.00 3.40 5.00 4.30 1.27 BSC 0.0080 0.60 0.75 0.0197 0.25 0.48 6.10 3.50 5.10 4.40 0.0075 0.0138 0.2320 0.1299 0.1930 0.1653 MAX 0.80 0.05 MIN 0.0276 0.0000 INCHES TYP. 0.0295 0.0008 0.0126 0.0080 0.0157 0.2360 0.1338 0.1970 0.1692 0.0500 BSC 0.0098 0.0190 0.2400 0.1377 0.2010 0.1732 MAX 0.0315 0.0019 0.0236 0.0295 - 41 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A 12.5 8-Pad WSON 6x5mm Cont'd. SYMBOL MIN SOLDER PATTERN M N P Q R MILLIMETERS TYP. MAX MIN INCHES TYP. MAX 3.40 4.30 6.00 0.50 0.75 0.1338 0.1692 0.2360 0.0196 0.0255 Notes: 1. Advanced Packaging Information; please contact Winbond for the latest minimum and maximum specifications. 2. BSC = Basic lead spacing between centers. 3. Dimensions D and E1 do not include mold flash protrusions and should be measured from the bottom of the package. 4. The metal pad area on the bottom center of the package is connected to the device ground (GND pin). Avoid placement of exposed PCB vias under the pad. - 42 - W25X10A, W25X20A, W25X40A, W25X80A 13. ORDERING INFORMATION(1) W W = Winbond 25X xxA V xx(2) 25X = spiFlash Serial Flash Memory with 4KB sectors, Dual Outputs 10A 20A 40A 80A = = = = 1M-bit 2M-bit 4M-bit 8M-bit V= 2.7V to 3.6V SN SS = = 8-pin SOIC 150-mil 8-pin SOIC 208-mil ZP DA = = 8-pad WSON 6x5mm 8-pin PDIP 300-mil I = Industrial (-40C to +85C) (Blank) G= Z= Standard Green Package (Lead-free, RoHS Compliant, Halogen-free (TBBA), Antimony-Oxide-free Sb2O3) Lead Free (Lead-free, RoHS Compliant) Notes: 1a. The Winbond W25X10A, W25X20A, W25X40A and W25X80A are fully compatible with the previous Winbond W25X10, W25X20, W25X40 and W25X80 Serial Flash Memories. 1b. Standard bulk shipments are in Tube (shape E). (shape T), when placing orders. 1c. The "W" prefix is not included on the part marking. 2. Only the 2 letter is used for the part marking; WSON package type ZP is not used for the part marking. nd Please specify alternate packing method, such as Tape and Reel - 43 - Publication Release Date: February 27, 2008 Revision B W25X10A, W25X20A, W25X40A, W25X80A Valid Part Numbers and Top Side Marking: The following table provides the valid part numbers for the 25X10A/20A/40A/80A SpiFlash Memories. Please contact Winbond for specific availability by density and package type. Winbond SpiFlash memories use an 12-digit Product Number for ordering. However, due to limited space, the Top Side Marking on all packages use an abbreviated 10-digit number. PACKAGE TYPE SN SOIC-8 150mil SS SOIC-8 208mil ZP(1) WSON-8 6x5mm DENSITY 1M-bit 2M-bit 4M-bit 8M-bit 4M-bit 8M-bit 1M-bit 2M-bit 4M-bit 8M-bit 1M-bit 2M-bit 4M-bit 8M-bit PRODUCT NUMBER W25X10AVSNIG W25X20AVSNIG W25X40AVSNIG W25X80AVSNIG W25X40AVSSIG W25X80AVSSIG W25X10AVZPIG W25X20AVZPIG W25X40AVZPIG W25X80AVZPIG W25X10AVDAIZ W25X20AVDAIZ W25X40AVDAIZ W25X80AVDAIZ TOP SIDE MARKING 25X10AVNIG 25X20AVNIG 25X40AVNIG 25X80AVNIG 25X40AVSIG 25X80AVSIG 25X10AVIG 25X20AVIG 25X40AVIG 25X80AVIG 25X10AVAIZ 25X20AVAIZ 25X40AVAIZ 25X80AVAIZ DA PDIP-8 300mil Note: 1. For WSON packages, the package type ZP is not used in the top side marking. - 44 - W25X10A, W25X20A, W25X40A, W25X80A 14. REVISION HISTORY VERSION DATE PAGE DESCRIPTION A B 01/09/08 02/27/08 43 & 44 New Create Added note for WSON top side marking Preliminary Designation The "Preliminary" designation on a Winbond datasheet indicates that the product is not fully characterized. The specifications are subject to change and are not guaranteed. Winbond or an authorized sales representative should be consulted for current information before using this product. Trademarks Winbond and SpiFlash are trademarks of Winbond Electronics Corporation. All other marks are the property of their respective owner. Important Notice Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales. Information in this document is provided solely in connection with Winbond products. Winbond reserves the right to make changes, corrections, modifications or improvements to this document and the products and services decribed herein at any time, without notice. - 45 - Publication Release Date: February 27, 2008 Revision B |
Price & Availability of W25X20AVDAIZ
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