27C4001 Datasheet | STMicroelectronics

M27C4001 4 Mbit (512Kb x 8) UV EPROM and OTP EPROM s 5V ± 10% SUPPLY VOLTAGE in READ OPERATION FAST ACCESS TIME: 35ns LOW POWER CONSUMPTION: - Active Current 30m A at 5MHz - Standby Current 100µA 1 32 s s 1 s s s PROGRAMMING VOLTAGE: 12.75V ± 0.25V PROGRAMMING TIME: 100µs/byte (typical) ELECTRONIC SIGNATURE - Manufacturer Code: 20h - Device Code: 41h FDIP32W (F) PDIP32 (B) LCCC32W (L) DESCRIPTION The M27C4001 is a 4 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large programs and is organised as 524,288 by 8 bits. The FDIP32W (window ceramic frit-seal package) and LCCC32W (leadless chip carrier package) have a transparent lid 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 M27C4001 is offered in PDIP32, PLCC32 and TSOP32 (8 x 20mm) packages. PLCC32 (C) TSOP32 (N) 8 x 20 mm Figure 1. Logic Diagram 8 Q0-Q7 Table 1. Signal Names A0-A18 Q0-Q7 E G VPP VCC VSS Address Inputs Data Outputs A0-A18 M27C4001 Chip Enable Output Enable Program Supply Supply Voltage Ground AI00721B July 1998 1/16 M27C4001 Figure 2A. DIP Pin Connections Figure 2B. LCC Pin Connections VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 VSS 1 32 2 31 3 30 4 29 5 28 6 27 7 26 8 25 M27C4001 9 24 10 23 11 22 12 21 13 20 14 19 15 18 16...