27C2001

M27C2001 2 Mbit (256Kb x 8) UV EPROM and OTP EPROM s 5V ± 10% SUPPLY VOLTAGE in READ OPERATION FAST ACCESS TIME: 55ns LOW POWER CONSUMPTION: – Active Current 30mA at 5MHz – Standby Current 100µA 1 1 32 32 s s s s s PROGRAMMING VOLTAGE: 12.75V ± 0.25V PROGRAMMING TIME: 100µs/byte (typical) ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: 61h FDIP32W (F) PDIP32 (B) DESCRIPTION The M27C2001 is a high speed 2 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 262,144 by 8 bits. The FDIP32W (window ceramic frit-seal package) and LCCC32W (leadless chip carrier package) have 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 M27C2001 is offered in PDIP32, PLCC32 and TSOP32 (8 x 20 mm) packages. Table 1. Signal Names A0-A17 Q0-Q7 E G P VPP VCC VSS Address Inputs Data Outputs Chip Enable Output Enable Program Program Supply Supply Voltage Ground LCCC32W (L) PLCC32 (K) TSOP32 (N) 8 x 20 mm Figure 1. Logic Diagram VCC VPP 18 A0-A17 8 Q0-Q7 P E G M27C2001 VSS AI00716B April 1999 1/16 M27C2001 Figure 2A. DIP Pin Connections Figure 2B. LCC Pin Connections VPP A16 A15 A12 A7 A6 A5 A4 A3 A2...