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Details, datasheet, quote on part number:M27W402-100K6
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Datasheet text preview:
M27W402
4 Mbit (256Kb x16) Low Voltage UV EPROM and OTP EPROM
s
2.7V to 3.6V SUPPLY VOLTAGE in READ OPERATION ACCESS TIME: 80ns at VCC = 3.0V to 3.6V 100ns at VCC = 2.7V to 3.6V
40 40
s
s s
PIN COMPATIBLE with M27C4002 LOW POWER CONSUMPTION: 15µA max Standby Current 15mA max Active Current at 5MHz
1
1
FDIP40W (F)
PDIP40 (B)
s s
PROGRAMMING TIME 100µs/word HIGH RELIABILITY CMOS TECHNOLOGY 2,000V ESD Protection 200mA Latchup Protection Immunity
PLCC44 (K) TSOP40 (N) 10 x 20 mm
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ELECTRONIC SIGNATURE Manufacturer Code: 0020h Device Code: 0044h Figure 1. Logic Diagram
DESCRIPTION The M27W402 is a low voltage 4 Mbit EPROM offered in the two range UV (Ultra Violet Erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large data or program storage and is organised as 262,144 by 16 bits. The M27W402 operates in the read mode with a supply voltage as low as 2.7V at 40 to 85°C temperature range. The decrease in operating power allow s either a reduction of the size of the battery or an increase in the time between battery recharges. The FDIP40W (window ceramic frit-seal package) has a transparent lids which allow the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27W402 is offered in PDIP40, PLCC44 and TSOP40 (10 x 20 mm) packages.
VCC
VPP
18 A0-A17
16 Q0-Q15
E G
M27W402
VSS
AI01863
March 2000
1/15
M27W402
Figure 2A. DIP Connections
VPP E Q15 Q14 Q13 Q12 Q11 Q10 Q9 Q8 VSS Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 G 1 2 3 4 5 6 7 8 9 10 M27W402 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC A17 A16 A15 A14 A13 A12 A11 A10 A9 VSS A8 A7 A6 A5 A4 A3 A2 A1 A0
Figure 2B. LCC Connections
Q12 Q11 Q10 Q9 Q8 VSS NC Q7 Q6 Q5 Q4
Q13 Q14 Q15 E VPP NC VCC A 17 A 16 A 15 A 14 1 44 A13 A12 A11 A10 A9 VSS NC A8 A7 A6 A5 12 M27W402 34 23 Q3 Q2 Q1 Q0 G NC A0 A1 A2 A3 A4
AI01865
AI02672
Figure 2C. TSOP Connections
A9 A10 A11 A12 A13 A14 A15 A16 A17 VCC VPP E DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 1 40 VSS A8 A7 A6 A5 A4 A3 A2 A1 A0 G DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 VSS
Table 1. Signal Names
A0-A17 Q0-Q15 E G VPP VCC VSS NC Address Inputs Data Outputs Chip Enable Output Enable Program Supply Supply Voltage Ground Not Connected Internally
10 11
M27W402 (Normal)
31 30
20
21
AI01866
2/15
M 27W 402
Table 2. Absolute Maximum Ratings (1)
Symbol TA TBIAS TSTG VIO (2) VCC VA9 (2) VP P Parameter Ambient Operating Temperature (3) Temperature Under Bias Storage Temperature Input or Output Voltage (except A9) Supply Voltage A9 Voltage Program Supply Voltage Value 40 to 85 50 to 125 65 to 150 2 to 7 2 to 7 2 to 13.5 2 to 14 Unit °C °C °C V V V V
Note: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. 2. Minimum DC voltage on Input or Output is 0.5V with possible undershoot to 2.0V for a period less than 20ns. Maximum DC voltage on Output is V CC +0.5V with possible overshoot to VCC +2V for a period less than 20ns. 3. Depends on range.
Table 3. Operating Modes
Mode Read Output Disable Program Verify Program Inhibit Standby Electronic Signature
Note: X = VIH or VIL, V ID = 12V ± 0.5V.
E VIL VIL VIL Pulse VIH VIH VIH VI L
G VIL VIH VIH VIL VIH X VIL
A9 X X X X X X VID
V PP VCC or VSS VCC or VSS V PP V PP V PP VCC or VSS VCC
Q15-Q0 Data Out Hi-Z Data In Data Out Hi-Z Hi-Z Codes
Table 4. Electronic Signature
Identifier Manufacturer's Code Device Code A0 VIL VIH Q7 0 0 Q6 0 1 Q5 1 0 Q4 0 0 Q3 0 0 Q2 0 1 Q1 0 0 Q0 0 0 Hex Data 20h 44h
Note: Outputs Q15-Q8 are set to '0'.
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