AT28C040-25LC集成电路（IC）的存储器规格书PDF中文资料

描述 Description

The AT28C040 is a high-performance electrically erasable and programmable read only memory (E2PROM). Its 4 megabits of memory is organized as 524,288 words by 8 bits. Manufactured with Atmels advanced nonvolatile CMOS technology, the device offers access times to 200 ns with power dissipation of just 440 mW.

特性 Features

• Read Access Time - 200 ns

• Automatic Page Write Operation

– Internal Address and Data Latches for 256 Bytes

– Internal Control Timer

• Fast Write Cycle Time

– Page Write Cycle Time - 10 ms Maximum

– 1 to 256 Byte Page Write Operation

• Low Power Dissipation

– 80 mA Active Current

• Hardware and Software Data Protection

• DATA Polling for End of Write Detection

• High Reliability CMOS Technology

– Endurance: 10,000 Cycles

– Data Retention: 10 Years

• Single 5V ± 10 Supply

• CMOS and TTL Compatible Inputs and Outputs

• JEDEC Approved Byte-Wide Pinout