Infineon NOR 8 MB CFI Flash Memory 48-Pin TSOP, S29AL008J70TFI013

The device offers access times of up to 55 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.

Device programming occurs by executing the program command sequence. This initiates the Embedded Program algorithm an internal algorithm that automatically times the program pulse widths and verifies proper cell margin. The Unlock Bypass mode facilitates faster programming times by requiring only two write cycles to program data instead of four.

Device erasure occurs by executing the erase command sequence. This initiates the Embedded Erase algorithm an internal algorithm that automatically preprograms the array (if it is not already programmed) before executing the erase operation. Duringerase, the device automatically times the erase pulse widths and verifies proper cell margin. The host system can detect whether a program or erase operation is complete by observing the RY/BY# pin, or by reading the DQ7(Data# Polling) and DQ6 (toggle) status bits. After a program or erase cycle has been completed, the device is ready to read array data or accept another command.