描述 Description

The AT27C520 is a low-power, high performance 524,288 bit one-time programmable read only memory (OTP EPROM) organized 64K by 8 bits. It incorporates latches for the 8 lower order address bits to multiplex with the 8 data bits. This minimizes system chip count, reduces cost, and simplifies the design of multiplexed bus systems. It 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

特性 Features

? 8-Bit Multiplexed Addresses/Outputs

? Fast Read Access Time - 70 ns

? Low Power CMOS Operation

– 20 mA max. Active at 5 MHz

? 20-Lead TSSOP Package

? 20-Lead SOIC Package

? 28-Lead TSOP Package

? 5V ± 10 Supply

? High Reliability CMOS Technology

– 2,000V ESD Protection

– 200 mA Latchup Immunity

? Rapid? Programming Algorithm - 50 μs/byte (typical)

? CMOS and TTL Compatible Inputs and Outputs

? Integrated Product Identification Code

? Commercial and Industrial Temperature Range