GENERAL DESCRIPTION
The MSM6351/6351L is a low-power microcontroller manufactured in silicon gate CMOS technology. Integrated into a single chip are ROM, RAM, five I/O ports, serial I/O port, timebase counter, LCD driver, three interrupts, crystal oscillator, and voltage tripler.
The MSM6351/6351L, which can drive LCD display with higher-count segments, is best suited to battery powered applications, such as watches and game machines.
The built-in 8-bit or 5-bit serial port provides a data communication capability with external machines.

FEATURES
• Low power consumption
• Large capacity memory
• ROM : 4096 words x 15 bits
• RAM : 1024 words x 4 bits
• I/O port
    Input-output port : 5 ports x 4 bits (input or output can be specified for each port)
• 62 LCD drivers (1/3 duty or 1/4 duty is selectable. Up to 232 segments can be displayed)
• Single 1.5 V power supply operation (MSM6351)
    Can be changed to 3.0 V specification by mask option (MSM6351L).
• Melody function
• Built-in watchdog timer
• Built-in 8-bit or 5-bit serial port (asynchronous or synchronous selectable)
• 32.768 kHz crystal oscillator
• Package options:
    100-pin plastic QFP (QFP100-P-1420-0.65-K) (Product name :MSM6351-xxGS-K/ MSM6351L-xxGS-K)
    100-pin plastic QFP (QFP100-P-1420-0.65-L) (Product name :MSM6351-xxGS-L/ MSM6351L-xxGS-L)
    100-pin plastic QFP (QFP100-P-1420-0.65-BK) (Product name :MSM6351-xxGS-BK/ MSM6351L-xxGS-BK) Chip
                                                                                 ·xx indicates a code number.