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| 64MB/128MB/256MB/512MB MultiMediaCardTM Description ESMMC64 ESMMC256 / / ESMMC128 TM Features / Operating Voltage: 2.7V ~ 3.6V Password data access protection Small erase block size of 512 bytes, tagged erase supported. Read block size programmable between 1 and 2048 bytes Damage free powered card insertion and removal 4KV ESD protection Read speed Sustained: 13.7Mbits/s Burst(one block): 20Mbit/s Write speed Sustained: 2.8Mbits/s Burst(one block): 20Mbit/s Up to 10 stacked card (at 20MHz, Vcc = 2.7V to 3.6V) Access time: 300s Low power dissipation ESMMC512 are 64MB up to 512MB MultiMediaCard . These are the highly integrated flash memory with serial and random accessible via a dedicated serial interface optimized for fast and reliable data transmission. They are fully compatible to a new consumer standard, called the MultiMediaCard system standard TM TM defined TM in the MultiMediaCard system specification. system is a new The MultiMediaCard mass-storage system based on innovations in semiconductor technology. It has been designed to provide an inexpensive, mechanically robust storage medium in card form for multimedia consumer applications and mobile devices (handheld PCs, digital cameras, MP3 players, etc.) to store, copy, and move information like a small hard drive. Pin Definition Pin No. 1 2 3 4 5 6 7 Name RSV CMD VSS1 VCC CLK VSS2 DAT Type NC I/O/PP/OD S S I S I/O/PP Description No connection Command/Response Ground Power Supply Clock Ground Data Eorex Corporation www.eorex.com 1/8 64MB/128MB/256MB/512MB MultiMediaCardTM Physical Outline Front Back Eorex Corporation www.eorex.com 2/8 64MB/128MB/256MB/512MB MultiMediaCardTM Architecture Eorex Corporation www.eorex.com 3/8 64MB/128MB/256MB/512MB MultiMediaCardTM Temperature Characteristic Parameter Storage temperature Operating temperature Junction temperature Min -40 -25 -20 Max 85 85 95 Unit Electrical Characteristics 1. Absolute Maximum Ratings Parameter Supply voltage Total power dissipation ESD protection Input voltage Output voltage High-level output current Low-level output current VImax VOmax VOHmax IOHmax -4 -0.5 -0.5 -100 150 Symbol Vcc Min -0.5 Max 4.6 0.2 4 Vcc+0.5 Vcc+0.5 Unit V W KV V V mA mA Remark Human body model max(Vcc) max(Vcc) Short cut protected Short cut protected 2. Bus Signal Line Load The total capacitance CL of each line of the MultiMediaCard each card connected to this line: CL = CHOST + CBUS + N*CCARD Where N is the number of connected cards. Requiring the sum of the host and bus capacitance's not to exceed 30pF for up to 10 cards, and 40pF up to 30 cards, the following values must not be exceeded: TM bus is the sum of the bus master capacitance CHOST, the bus capacitance CBUS itself and the capacitance CCARD of Parameter Pull-up resistance for CMD Pull-up resistance for DAT Bus signal line capacitance Bus signal line capacitance Signal card capacitance Maximum signal line inductance Eorex Corporation www.eorex.com Symbol RCMD RDAT CL CL CCARD Min 4.7 50 Max 100 100 250 100 7 16 Unit K K pF pF pF nH Remark To prevent bus floating To prevent bus floating fpp5MHz, 30 cards fpp20MHz, 10 cards fpp20MHz 4/8 64MB/128MB/256MB/512MB MultiMediaCardTM 3. Recommend Operating Conditions Parameter Supply voltage Inputs Low-level input current High-level input current Outputs High-level output current Low-level output current Clock Clock frequency data transfer mode (pp) Input clk Clock frequency ident. Mode (od) Clock cycle time data transfer mode (pp) Clock cycle time ident. Mode (od) Clock low time Clock high time Clock input rise time Clock input fall time Clock low time Clock high time Clock input rise time Clock input fall time Tpp = 1/fpp tOD = 1/fOD tWL tWH tLH tHL tWL tWH tLH tHL 50 50 50 50 10 10 10 10 ns ns ns ns ns mA mA MHz CL<100pF,(10 cards) CL<100pF,(10 cards) CL<100pF,(10 cards) CL<100pF,(10 cards) CL<250pF,(30 cards) CL<250pF,(30 cards) CL<250pF,(30 cards) CL<250pF,(30 cards) 2.5 s 50 ns fOD 0 400 KHz Symbol VCC VIL VIH IOH IOL fpp 0 Min 2.7 VSS-0.3 0.625VCC -2 6 20 Typ 3.0 Max 3.6 0.25VCC VCC+0.3 Unit V V V mA mA MHz CL<100pF,(10 cards) Remark 4. Recommend Bus Conditions Parameter Clock Input clk Pull-up resistance for CMD Pull-up resistance for DAT Bus signal line capacitance Symbol RCMD RDAT CL Min 4.7 50 Typ Max 100 100 250 100 Maximum signal line inductance 16 Unit K K pF pF nH Remark To prevent bus floating To prevent bus floating fpp5MHz, 30 cards fpp20MHz, 10 cards fpp20MHz Eorex Corporation www.eorex.com 5/8 64MB/128MB/256MB/512MB MultiMediaCardTM 5. Operating Characteristics Parameter High speed supply current Minimal supply current Symbol Min Typ Max 45 150 Unit mA A Remark At 20MHz, 3.6V At 0Hz, 3.6V standby state All digital inputs (including I/O current) All outputs High-level output voltage Low-level output voltage Inputs: CMD, DAT(Referred to CLK), DI(Referred to SCLK), CS Outputs: CMD, DAT(Referred to CLK), DO(Referred to SCLK) Output set-up time Output hold time tOH 5 ns At tLH = 10ns tOSU 5 ns Input hold time VOL Input set-up time tISU 3 3 ns ns VOL 0.125VCC V At max IOL VOH 0.75VCC V At min IOH Input leakage current -10 10 A Eorex Corporation www.eorex.com 6/8 64MB/128MB/256MB/512MB MultiMediaCardTM Timing Diagram of Data Input and Output The access time (tAT) is divided into two parts: TSAD: The synchronous access time. This time defines the time of the maximum number of cycles which are required to access a byte of the memory field. TAAD: The synchronous access time to read a byte out of the memory field. The synchronous part of the access time is sum of the command frame length and some additional internal cycles (NSAD = 16 cycles). At 20MHz one cycle is 50ns (1/fCLK), multiplied with NSAD the resulting frame time is TSAD = 0.8s. The asynchronous access delay TAAD = 600s maximum. The resulting memory access time tAT is the sum of both parts: tAT = TSAD + TAAD with TSAD = NSAD/ fCLK Eorex Corporation www.eorex.com 7/8 64MB/128MB/256MB/512MB MultiMediaCardTM Access Time Parameter Synchronous access delay cycles Synchronous access delay Asynchronous access delay Memory access time Symbol Typ Max 16 0.8 600 600.8 Unit cycles s s s At 20MHz clock frequency At 20MHz clock frequency Remark NSAD TSAD TAAD TAT Above technical information is based on industry standard data and tested to reliable. However, Transcend makes no warranty, either expressed or implied, as to its accuracy and assumes no liability in connection with the use of this product. Transcend reserves the tight to make changes in specifications at any time without prior notice. Eorex Corporation www.eorex.com 8/8 |
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