GMS34004TK 4-bit single chip microcomputer. Program memory 512 bytes. Data memory 32 x 4. Input ports 4. Output ports 6. Operating frequency 300KHz-500KHz at KHz version
GMS34004TM Program memory 512 bytes, 300KHz-500KHz, 4-5 V, 4 BIT single chip microcomputer
GMS34004TW Program memory 512 bytes, 300KHz-500KHz, 4-5 V, 4 BIT single chip microcomputer