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Description

The AT29BV040A is a 3-volt-only in-system Flash Programmable and Erasable Read Only Memory (PEROM). Its 4 megabits of memory is organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS EEPROM technology, the device offers access times to 200 ns, and a low 54 mW power dissipation. When the device is deselected, the CMOS standby current is less than 40 μA.

Features

? Single Supply Voltage, Range 2.7V to 3.6V

? Single Supply for Read and Write

? Software Protected Programming

? Fast Read Access Time – 200 ns

? Low Power Dissipation

– 15 mA Active Current

– 40 μA CMOS Standby Current

? Sector Program Operation

– Single Cycle Reprogram (Erase and Program)

– 2048 Sectors (256 Bytes/Sector)

– Internal Address and Data Latches for 256 Bytes

? Two 16K Bytes Boot Blocks with Lockout

? Fast Sector Program Cycle Time – 20 ms Max.

? Internal Program Control and Timer

? DATA Polling for End of Program Detection

? Minimum Endurance 10,000 Cycles

? CMOS and TTL Compatible Inputs and Outputs

? Commercial and Industrial Temperature Ranges