M27V101

M27V101 1 Mbit (128Kb x 8) Low Voltage UV EPROM and OTP EPROM s LOW VOLTAGE READ OPERATION: 3V to 3.6V FAST ACCESS TIME: 90ns LOW POWER CONSUMPTION: – Active Current 15mA at 5MHz – Standby Current 20µA 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: 05h 1 1 FDIP32W (F) PDIP32 (B) DESCRIPTION The M27V101 is a low voltage 1 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 data or program storage and is organized as 131,072 by 8 bits. The M27V101 operates in the read mode with a supply voltage as low as 3V. The decrease in operating power allows either a reduction of the size of the battery or an increase in the time between battery recharges. The FDIP32W (window ceramic frit-seal package) has a transparent lid which allow the user to expose the chip to ultraviolet light to erase the bit pattern. Table 1. Signal Names A0-A16 Q0-Q7 E G P VPP VCC VSS Address Inputs Data Outputs Chip Enable Output Enable Program Program Supply Supply Voltage Ground PLCC32 (K) TSOP32 (N) 8 x 20 mm Figure 1. Logic Diagram VCC VPP 17 A0-A16 8 Q0-Q7 P E G M27V101 VSS AI00660B May 1998 1/15 M27V101 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 M27V101 9 24 10 23 1...