27C040 Datasheet | Atmel

AT27C040 Features - Fast Read Access Time - 70 ns - Low Power CMOS Operation - 100 µA max. Standby 30 m A max. Active at 5 MHz JEDEC Standard Packages 32-Lead 600-mil PDIP 32-Lead 450-mil SOIC (SOP) 32-Lead PLCC 32-Lead TSOP 5V ± 10% Supply High Reliability CMOS Technology 2000V ESD Protection 200 m A Latchup Immunity Rapid™Programming Algorithm - 100 µs/byte (typical) CMOS and TTL patible Inputs and Outputs Integrated Product Identification Code mercial and Industrial Temperature Ranges - - - - - - 4-Megabit (512K x 8) OTP EPROM AT27C040 Description The AT27C040 chip is a low-power, high-performance, 4,194,304-bit one-time programmable read only memory (OTP EPROM) organized as 512K by 8 bits. The AT27C040 requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 70 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems. Atmel's scaled CMOS technology provides low active power consumption, and fast programming. Power consumption is typically 8 m A in active mode and less than 10 µA in standby mode. (continued) Pin Configurations Pin Name A0 - A18 O0 - O7 CE OE Function Addresses Outputs Chip Enable Output Enable PDIP, SOIC Top View PLCC Top View TSOP Top View 0189E-A- 7/97 The AT27C040 is available in a choice of industry standard JEDEC-approved one-time programmable (OTP) plastic PDIP, PLCC, SOIC (SOP), and TSOP packages. The device Features two-line control (CE, OE) to eliminate bus contention in high-speed systems. Atmel's AT27C040 has additional Features to ensure high quality and efficient production use. The Rapid™Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100 µs/byte. The Integrated Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper programming...