GENERAL DESCRIPTION
The MSM65524A is a high-performance 8-bit microcontroller that employs OKI original nX-8/50 CPU core. With a minimum instruction execution time of 400 ns (10MHz clock), the MSM65524A is capable of high-speed processing, and includes 16K bytes of program memory, 384 bytes of data memory, timers, serial ports, an A/D converter and PWMs on chip. Also available are the MSM65P524, which replaces the on-chip program memory with one-time PROM, and the MSM65X524A, which uses the external program memory.

FEATURES
• Operating range
   Operating frequency : 0 to 10MHz (VDD=4.5 to 5.5V)
                                       0 to 5MHz (VDD=2.7 to 5.5V)
   Operating voltage : 2.7 to 5.5V
   Operating temperature : –40 to +85°C
• Memory space : 64K bytes
   Internal program memory : 16K bytes
   Internal data memory : 384 bytes
• Minimum instruction execution time : 400ns @ 10 MHz
• Powerful instruction set : 83 basic instructions
                                  8/16-bit operation instructions
                                  Bit manipulation instructions
                                  Compound function instructions
• Abundant addressing modes
• Multiplication/division operation functions : 8 X 8 → 16
                                                                      16 ÷ 8 → 16 ... 8
• I/O port
    Input-output port : 5 ports X 8 bits
                             1 port X 4 bits
    Input port : 1 port ¥ 8 bits
• Timers : 8-bit auto-reload timer X 2
                16-bit auto-reload timer X 1
                Watchdog timer X 1
• Counters : Time base counter X 1
                    16-bit free-running counter X 1
• Capture input : 1 channel
• Compare output : 2 channels
• Serial ports : Shift register X 1
                    Serial port with baud rate generator
                    (UART/Synchronous) X 1
• A/D converter : 8 bits ¥ 8 channels
• PWM : 8 bits X 2 channels
            PWM with auto-reload timer for period setting
• External interrupts : 3
• Interrupt sources : 19
• Package options
   64-pin plastic shrink DIP (SDIP64-P-750-1.78) : (Product name: MSM65524A-XXXSS,
                                                                  MSM65P524-XXXSS)
   64-pin plastic QFP (QFP64-P-1414-0.80-BK) : (Product name: MSM65524A-XXXGS-BK,
                                                                  MSM65P524-XXXGS-BK)
   68-pin plastic QFJ (PLCC) (QFJ68-P-S950-1.27): (Product name: MSM65524A-XXXJS,
                                                                 MSM65P524-XXXJS)
                                                                  XXX indicates the code number.