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.