The M6MGB/T331S8BKT is a Stacked micro Multi Chip Package (S- MCP) that contents 32M-bit Flash memory and 8M-bit Static RAM in a 52-pin TSOP for lead free use. 32M-bit Flash memory is a 4,194,304 bytes / 2,097,152 words, , single power supply and high performance nonvolatile memory fabricated by CMOS technology for the peripheral circuit and DINOR (Divided bit-line NOR IV) architecture for the memory cell. All memory blocks are locked and can not be programmed or erased, when F-WP# is low. Using Software Lock Release function, program or erase operation can be executed. 8M-bit SRAM is a 1,048,576 bytes / 524,288 words asynchronous SRAM fabricated by CMOS technology for the peripheral circuit .