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> 29F400 / AM29F400AB-120EC / AM29F400AB / pulled amd ic
29F400 / AM29F400AB-120EC / AM29F400AB / pulled amd ic
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AM29F400AB-120EC AMD $3.25 each Please note: These parts are PULLS and may have small amounts of solder on the leads. The following spec sheet is provided by AMD and may cover several different versions and/or products. This listing is only for the item pictured and listed in the heading.
The Am29F400A is a 4 Mbit, 5.0 Volt-only Flash memory organized as 512 Kbytes of 8 bits each or 256 Kwords of 16 bits each. The 4 Mbits of data is divided into 11 sectors of one 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and seven 64 Kbytes, for flexible erase capability. The 8 bits of data will appear on DQ0–DQ7 or 16 bits on DQ0–DQ15. The Am29F400A is offered in 44-pin SO and 48-pin TSOP packages. This device is designed to be programmed in-system with the standard system 5.0 Volt V
CC supply. 12.0 Volt V PP is not required for program or erase operations. The device can also be reprogrammed in standard EPROM programmers.
The standard Am29F400A offers access times of 60 ns, 70 ns, 90 ns, 120 ns and 150 ns, allowing high speed microprocessors to operate without wait states.
To eliminate bus contention the device has separate chip enable (CE), write enable (WE) and output enable (OE) controls.
The Am29F400A is entirely command set compatible with the JEDEC single-power-supply Flash standard.
Commands are written to the command register using standard microprocessor write timings. Register contents serve as input to an internal state-machine which controls the erase and programming circuitry.
