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)