M29W200BT/M29W200BB is 2Mbit low voltage single supply flash memory, single power supply range is 2.7-3.6V, read timing is 55ns, program time is 10µs/byte, supports 7 memory blocks, including 1 boot block (top or bottom location), 2 parameter blocks and 4 main blocks, supports embedded byte/word program algorithm, embedded multi-block/chip erase algorithm, status register polling and toggle bits, ready/busy output pin, supports erase suspend and resume mode, unlock bypass program command, temporary block unlock mode, low power consumption (standby and automatic standby), 100,000 program/erase cycles/block, 20 years data retention (defect rate is less than 1ppm/year), electronic signature (manufacturer code: 0020h, top device code M29W200BT: 0051h, bottom device code M29W200BB 0057h), supports TSOP48(N) and SO44(M) packages.