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PRELIMINARY
MX27C2000A
2M-BIT [256K x 8] CMOS EPROM
FEATURES
* * * * * *
256Kx 8 organization Single +5V power supply +12.5V programming voltage Fast access time:90/100/120/150 ns Totally static operation Completely TTL compatible
* Operating current:30mA * Standby current: 100uA * Package type:
32 pin plastic DIP 32 pin PLCC 32 pin SOP 32 pin TSOP
GENERAL DESCRIPTION
The MX27C2000A is a 5V only, 2M-bit, One Time Programmable Read Only Memory. It is organized as 256K words by 8 bits per word, operates from a single + 5 volt supply, has a static standby mode, and features fast single address location programming. All programming signals are TTL levels, requiring a single pulse. For programming outside from the system, existing EPROM programmers may be used. The MX27C2000A supports a intelligent fast programming algorithm which can result in programming time of less than one minute. This One Time Programmable Read Only is packaged in industry standard 32 pin dual-in-line packages, 32 lead PLCC, 32 lead SOP, 32 lead TSOP packages.
PIN CONFIGURATIONS 32 PDIP/SOP
VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC PGM A17 A14 A13 A8 A9 A11 OE A10 CE Q7 Q6 Q5 Q4 Q3
32 PLCC
PGM VCC VPP A12 A15 A16
4 1 32 30 29
A17
A7 A6 A5 A4 A3 A2 A1 A0 Q0
5
A14 A13 A8 A9
MX27C2000A
9
MX27C2000A
25
A11 OE A10 CE
13 14
17
21 20
Q7
Q1
Q2
GND
Q3
Q4
Q5
32 TSOP
A11 A9 A8 A13 A14 A17 PGM VCC VPP A16 A15 A12 A7 A6 A5 A4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE Q7 Q6 Q5 Q4 Q3 GND Q2 Q1 Q0 A0 A1 A2 A3
PIN DESCRIPTION
SYMBOL A0~A17 Q0~Q7 CE OE PGM VPP NC VCC GND PIN NAME Address Input Data Input/Output Chip Enable Input Output Enable Input Programmable Enable Input Program Supply Voltage No Internal Connection Power Supply Pin (+5V) Ground Pin
MX27C2000A
Q6
P/N: PM0708
REV. 2.0, AUG. 27, 2003
1
MX27C2000A
BLOCK DIAGRAM
CE PGM OE CONTROL LOGIC OUTPUT BUFFERS Q0~Q7
PROGRAM INHIBIT MODE
Programming of multiple MX27C2000As in parallel with different data is also easily accomplished by using the Program Inhibit Mode. Except for CE and OE, all like inputs of the parallel MX27C2000A may be common. A TTL low-level program pulse applied to an MX27C2000A CE input with VPP = 12.5 0.5 V and PGM LOW will program that MX27C2000A. A high-level CE input inhibits the other MX27C2000A from being programmed.
A0~A17 ADDRESS INPUTS
. . . . . . . .
Y-DECODER
. . . . . . . .
Y-SELECT
X-DECODER
2M BIT CELL MAXTRIX
PROGRAM VERIFY MODE
Verification should be performed on the programmed bits to determine that they were correctly programmed. The verification should be performed with OE and CE at VIL, PGM at VIH, and VPP at its programming voltage.
VCC VSS
VPP
FUNCTIONAL DESCRIPTION THE PROGRAMMING OF THE MX27C2000A
When the MX27C2000A is delivered, or it is erased, the chip has all 2M bits in the "ONE", or HIGH state. "ZEROs" are loaded into the MX27C2000A through the procedure of programming. For programming, the data to be programmed is applied with 8 bits in parallel to the data pins. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP. When programming an MXIC OTP ROM, a 0.1uF capacitor is required across VPP and ground to suppress spurious voltage transients which may damage the device.
AUTO IDENTIFY MODE
The auto identify mode allows the reading out of a binary code from an EPROM that will identify its manufacturer and device type. This mode is intended for use by programming equipment for the purpose of automatically matching the device to be programmed with its corresponding programming algorithm. This mode is functional in the 25C 5 ambient temperature range C that is required when programming the MX27C2000A. To activate this mode, the programming equipment must force 12.0 0.5 V on address line A9 of the device. Two identifier bytes may then be sequenced from the device outputs by toggling address line A0 from VIL to VIH. All other address lines must be held at VIL during auto identify mode. Byte 0 ( A0 = VIL) represents the manufacturer code, and byte 1 (A0 = VIH), the device identifier code. For the MX27C2000A, these two identifier bytes are given in the Mode Select Table. All identifiers for manufacturer and device codes will possess odd parity, with the MSB (Q7) defined as the parity bit.
FAST PROGRAMMING
The device is set up in the fast programming mode when the programming voltage VPP = 12.75V is applied, with VCC = 6.25V and PGM = VIH (Algorithm is shown in Figure 1). The programming is achieved by applying a single TTL low level 10us pulse to the PGM input after addresses and data line are stable. If the data is not verified, an additional pulse is applied for a maximum of 25 pulses. This process is repeated while sequencing through each address of the device. When the programming mode is completed, the data in all address is verified at VCC = VPP = 5V 10%.
READ MODE
The MX27C2000A has two control functions, both of which must be logically satisfied in order to obtain data at the outputs. Chip Enable (CE) is the power control and should be used for device selection. Output Enable (OE)
P/N: PM0708
2
REV. 2.0, AUG. 27, 2003
MX27C2000A
is the output control and should be used to gate data to the output pins, independent of device selection. Assuming that addresses are stable, address access time (tACC) is equal to the delay from CE to output (tCE). Data is available at the outputs tOE after the falling edge of OE, assuming that CE has been LOW and addresses have been stable for at least tACC - tOE. It is recommended that CE be decoded and used as the primary device-selecting function, while OE be made a common connection to all devices in the array and connected to the READ line from the system control bus. This assures that all deselected memory devices are in their low-power standby mode and that the output pins are only active when data is desired from a particular memory device.
STANDBY MODE SYSTEM CONSIDERATIONS
The MX27C2000A has a CMOS standby mode which reduces the maximum VCC current to 100 uA. It is placed in CMOS standby when CE is at VCC 0.3 V. The MX27C2000A also has a TTL-standby mode which reduces the maximum VCC current to 1.5 mA. It is placed in TTL-standby when CE is at VIH. When in standby mode, the outputs are in a high-impedance state, independent of the OE input. During the switch between active and standby conditions, transient current peaks are produced on the rising and falling edges of Chip Enable. The magnitude of these transient current peaks is dependent on the output capacitance loading of the device. At a minimum, a 0.1 uF ceramic capacitor (high frequency, low inherent inductance) should be used on each device between Vcc and GND to minimize transient effects. In addition, to overcome the voltage drop caused by the inductive effects of the printed circuit board traces on EPROM arrays, a 4.7 uF bulk electrolytic capacitor should be used between VCC and GND for each eight devices. The location of the capacitor should be close to where the power supply is connected to the array.
TWO-LINE OUTPUT CONTROL FUNCTION
To accommodate multiple memory connections, a twoline control function is provided to allow for: 1. Low memory power dissipation, 2. Assurance that output bus contention will not occur.
MODE SELECT TABLE
PINS MODE Read Output Disable Standby (TTL) Standby (CMOS) Program Program Verify Program Inhibit Manufacturer Code(3) Device Code(3) CE VIL VIL VIH VCC0.3V VIL VIL VIH VIL VIL OE VIL VIH X X VIH VIL X VIL VIL PGM X X X X VIL VIH X X X A0 X X X X X X X VIL VIH A9 X X X X X X X VH VH VPP VCC VCC VCC VCC VPP VPP VPP VCC VCC OUTPUTS DOUT High Z High Z High Z DIN DOUT High Z C2H C3H
NOTES: 1.VH = 12.0 V 0.5 V 2.X = Either VIH or VIL 3.A1 - A8 = A10 - A17 = VIL(For auto select) 4.See DC Programming Characteristics for VPP voltage during programming.
P/N: PM0708
3
REV. 2.0, AUG. 27, 2003
MX27C2000A
FIGURE 1. FAST PROGRAMMING FLOWCHART
START
ADDRESS = FIRST LOCATION
VCC = 6.25V VPP = 12.75V X=0
PROGRAM ONE 10us PULSE
INTERACTIVE SECTION
INCREMENT X
YES X = 25?
NO FAIL VERIFY BYTE ? PASS NO INCREMENT ADDRESS LAST ADDRESS FAIL YES
VCC = VPP = 5.25V
VERIFY SECTION
VERIFY ALL BYTES ?
FAIL
DEVICE FAILED
PASS DEVICE PASSED
P/N: PM0708
4
REV. 2.0, AUG. 27, 2003
MX27C2000A
SWITCHING TEST CIRCUITS
DEVICE UNDER TEST
1.8K ohm +5V
CL 6.2K ohm
DIODES = IN3064 OR EQUIVALENT
CL = 100 pF including jig capacitance
SWITCHING TEST WAVEFORMS
2.0V
AC driving levels
2.0V TEST POINTS 0.8V OUTPUT
0.8V INPUT
AC TESTING: AC driving levels are 2.4V/0.4V for commercial grade. Input pulse rise and fall times are equal to or less than 10ns.
P/N: PM0708
5
REV. 2.0, AUG. 27, 2003
MX27C2000A
ABSOLUTE MAXIMUM RATINGS
RATING Ambient Operating Temperature Storage Temperature Applied Input Voltage Applied Output Voltage VCC to Ground Potential A9 & VPP VALUE -40oC to 85oC -65oC to 125oC -0.5V to 7.0V -0.5V to VCC + 0.5V -0.5V to 7.0V -0.5V to 13.5V NOTICE: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended period may affect reliability. NOTICE: Specifications contained within the following tables are subject to change.
DC/AC OPERATING CONDITION FOR READ OPERATION
MX27C2000A -90 Operating Temperature Industrial Vcc Power Supply -40C to 85 C 5V 10% -10 -40C to 85 C 5V 10% -12 -40 to 85C C 5V 10% -15 -40C to 85 C 5V 10%
DC CHARACTERISTICS
SYMBOL VOH VOL VIH VIL ILI ILO ICC3 ICC2 ICC1 IPP PARAMETER Output High Voltage Output Low Voltage Input High Voltage Input Low Voltage Input Leakage Current Output Leakage Current VCC Power-Down Current VCC Standby Current VCC Active Current VPP Supply Current Read 2.0 -0.3 -10 -10 MIN. 2.4 0.4 VCC + 0.5 0.8 10 10 100 1.5 30 10 MAX. UNIT V V V V uA uA uA mA mA uA VIN = 0 to 5.5V VOUT = 0 to 5.5V CE = VCC 0.3V CE = VIH CE = VIL, f=5MHz, Iout = 0mA CE = OE = VIL, VPP = 5.5V CONDITIONS IOH = -0.4mA IOL = 2.1mA
CAPACITANCE TA = 25oC, f = 1.0 MHz (Sampled only)
SYMBOL CIN COUT CVPP PARAMETER Input Capacitance Output Capacitance VPP Capacitance TYP. 8 8 18 MAX. 12 12 25 UNIT pF pF pF CONDITIONS VIN = 0V VOUT = 0V VPP = 0V
P/N: PM0708
6
REV. 2.0, AUG. 27, 2003
MX27C2000A
AC CHARACTERISTICS
27C2000A-90 27C2000A-10 27C2000A-12 27C2000A-15 Symbol PARAMETER tACC tCE tOE tDF Address to Output Delay Chip Enable to Output Delay Output Enable to Output Delay OE High to Output Float, or CE High to Output Float tOH Output Hold from Address,CE or OE which ever occurred first 0 0 0 0 ns 0 MIN. MAX. MIN. 90 90 40 25 0 MAX. MIN. 100 100 45 35 0 MAX. 120 120 50 35 0 MIN. MAX. Unit Conditions 150 150 65 50 ns ns ns ns CE=OE=VIL OE=VIL CE=VIL
DC PROGRAMMING CHARACTERISTICS TA = 25oC 5oC
SYMBOL VOH VOL VIH VIL ILI VH ICC3 IPP2 VCC1 VPP1 PARAMETER Output High Voltage Output Low Voltage Input High Voltage Input Low Voltage Input Leakage Current A9 Auto Select Voltage VCC Supply Current (Program & Verify) VPP Supply Current(Program) Fast Programming Supply Voltage Fast Programming Voltage 6.00 12.5 2.0 -0.3 -10 11.5 MIN. 2.4 0.4 VCC + 0.5 0.8 10 12.5 50 30 6.50 13.0 MAX. UNIT V V V V uA V mA mA V V CE = PGM = VIL, OE = VIH VIN = 0 to 5.5V CONDITIONS IOH = -0.40mA IOL = 2.1mA
AC PROGRAMMING CHARACTERISTICS TA = 25oC 5oC
SYMBOL tAS tOES tDS tAH tDH tDFP tVPS tPW tVCS tCES tOE PARAMETER Address Setup Time OE Setup Time Data Setup Time Address Hold Time Data Hold Time Output Enable to Output Float Delay VPP Setup Time PGM Program Pulse Width VCC Setup Time CE Setup Time Data valid from OE MIN. 2.0 2.0 2.0 0 2.0 0 2.0 10 2.0 2.0 150 50 130 MAX. UNIT us us us us us ns us us us us ns CONDITIONS
P/N: PM0708
7
REV. 2.0, AUG. 27, 2003
MX27C2000A
WAVEFORMS READ CYCLE
ADDRESS INPUTS
tACC
DATA ADDRESS
CE
tCE
OE
tDF
DATA OUT
tOE
VALID DATA
tOH
FAST PROGRAMMING ALGORITHM WAVEFORM
PROGRAM VIH
PROGRAM VERIFY
Addresses
VIL
tAS
Hi-z DATA IN STABLE DATA OUT VALID
tAH
DATA
tDS VPP1
tDH
tDFP
VPP
VCC tVPS VCC1
VCC
tVCS VCC VIH
CE
VIL tCES VIH
PGM
VIL tPW VIH tOES tOE Max
OE
VIL
P/N: PM0708
8
REV. 2.0, AUG. 27, 2003
MX27C2000A
ORDERING INFORMATION
PLASTIC PACKAGE
PART NO. ACCESS TIME (ns) MX27C2000APC-90 MX27C2000AQC-90 MX27C2000AMC-90 MX27C2000ATC-90 MX27C2000APC-10 MX27C2000AQC-10 MX27C2000AMC-10 MX27C2000ATC-10 MX27C2000APC-12 MX27C2000AQC-12 MX27C2000AMC-12 MX27C2000ATC-12 MX27C2000APC-15 MX27C2000AQC-15 MX27C2000AMC-15 MX27C2000ATC-15 MX27C2000API-90 MX27C2000AQI-90 MX27C2000AMI-90 MX27C2000ATI-90 MX27C2000API-10 MX27C2000AQI-10 MX27C2000AMI-10 MX27C2000ATI-10 MX27C2000API-12 MX27C2000AQI-12 MX27C2000AMI-12 MX27C2000ATI-12 MX27C2000API-15 MX27C2000AQI-15 MX27C2000AMI-15 MX27C2000ATI-15 90 90 90 90 100 100 100 100 120 120 120 120 150 150 150 150 90 90 90 90 100 100 100 100 120 120 120 120 150 150 150 150 OPERATING Current MAX.(mA) 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 STANDBY Current MAX.(uA) 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 OPERATING TEMPERATURE 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C 0 to 70 C C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C -40C to 85 C 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP 32 Pin DIP 32 Pin PLCC 32 Pin SOP 32 Pin TSOP PACKAGE
P/N: PM0708
9
REV. 2.0, AUG. 27, 2003
MX27C2000A
PACKAGE INFORMATION
P/N: PM0708
10
REV. 2.0, AUG. 27, 2003
MX27C2000A
P/N: PM0708
11
REV. 2.0, AUG. 27, 2003
MX27C2000A
P/N: PM0708
12
REV. 2.0, AUG. 27, 2003
MX27C2000A
P/N: PM0708
13
REV. 2.0, AUG. 27, 2003
MX27C2000A
REVISION HISTORY
Revision No. Description Page 1.1 Cencel 70/90ns speed P1,6,7,10 Cancel SOP/TSOP package type P1,6,7,10,11 Add "Advance Information" P1 1.2 Modify Fast Programming Flowchart--Program One 100us Pulse P4 -->10us Pulse Modify AC Programming Characteristics--tPW 95-->10(MIN.) P8 1.3 Cencel 150ns speed P1,5,6,7,10 1.4 Add tPW(MAX.):50us P7 1.5 Modify Fast access time:100-->90 P1 Modify Absolute Naximum Ratings--Ambient Operation Temperature P6 0 to 70C --> -40C to 85C C Modify AC Characteristics tACC&tEC:100-->90 ; tOE:45-->40 ; P7 tDF:30-->25 Add Order Information--> -40 to 85 Operating Temperature C C P9 1.6 Change device ID code from 21H to C3H P3 1.7 To change data sheet title to Preliminary P1 To added access time 100/150ns and 32SOP/TSOP type package P1,6,7,9 1.8 To modify Package Information P10~13 1.9 To modify Package Information P10~13 2.0 To modify 32-PLCC package information P12 A1: from 0.50mm(0.020 inch)/nom. to 0.58mm(0.023 inch)/nom. from 0.66mm(0.026 inch)/nom. to 0.81mm(0.032 inch)/nom. Date MAY/11/2000
JUL/06/2000
JUL/13/2000 SEP/01/2000 SEP/08/2000
DEC/28/2000 MAR/15/2001 JUL/19/2001 NOV/20/2002 AUG/27/2003
P/N: PM0708
14
REV. 2.0, AUG. 27, 2003
MX27C2000A
MACRONIX INTERNATIONAL CO., LTD.
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