OUTLINE OF CHARACTERISTICS
The GMS300 series is a family of 4-bit, single chip CMOS microcomputer. Since it can form a system by one chip, it contributes to cost reduction and higher efficiency in system.

Characteristics
• Program memory : 512 bytes for GMS30004/012
                                 1024 bytes for GMS30112/120/140
• Data memory : 32 Ø 4 bits
• 43 types of instruction set
• 3 levels of subroutine nesting
• 1 bit output port for a large current (REMOUT signal)
• Operating frequency : 300KHz to 1MHz
• Instruction cycle : 12.5usec @480KHz
• CMOS process (Single 3.0V power supply)
• Stop mode (Through internal instruction)
• Released stop mode by key input (Masked option)
• Built in capacitor for ceramic oscillation circuit (Masked option)
• Built in a watch dog timer (WDT)
• Low operating voltage : (2.0~4.0V)