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MSM80C51F Dataheets PDF



Part Number MSM80C51F
Manufacturers OKI electronic componets
Logo OKI electronic componets
Description CMOS 8-Bit Microcontroller
Datasheet MSM80C51F DatasheetMSM80C51F Datasheet (PDF)

E2E1037-19-41 ¡ Semiconductor MSM80C31F/MSM80C51F ¡ Semiconductor CMOS 8-Bit Microcontroller This version: Mar. 1995 MSM80C31F/80C51F GENERAL DESCRIPTION The OKI MSM80C31F/MSM80C51F microcontroller is a low-power, 8-bit device implemented in OKI's silicon-gate complementary metal-oxide semiconductor process technology. The device includes 4K bytes of mask programmable ROM (MSM80C51F only), 128 bytes of data RAM, 32 I/O lines, two 16-bit timer/counters, a five-source two-level interrupt struct.

  MSM80C51F   MSM80C51F



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E2E1037-19-41 ¡ Semiconductor MSM80C31F/MSM80C51F ¡ Semiconductor CMOS 8-Bit Microcontroller This version: Mar. 1995 MSM80C31F/80C51F GENERAL DESCRIPTION The OKI MSM80C31F/MSM80C51F microcontroller is a low-power, 8-bit device implemented in OKI's silicon-gate complementary metal-oxide semiconductor process technology. The device includes 4K bytes of mask programmable ROM (MSM80C51F only), 128 bytes of data RAM, 32 I/O lines, two 16-bit timer/counters, a five-source two-level interrupt structure, a full duplex serial port, and an oscillator and clock circuitry. In addition, the device has two software selectable modes for further power reduction — Idle and Power Down. Idle mode freezes the CPU's in-struction execution while maintaining RAM and allowing the timers, serial port and interrupt system to continue functions. Power Down mode saves the RAM contents but freezes the oscillator causing all other device functions to be inoperative. FEATURES • Low power consumption by 2 mm silicon gate CMOS process technology • Fully static circuit • Internal program memory : 4K bytes (MSM80C51F) • External program memory space : 64K bytes • Internal data memory (RAM) : 128 bytes • External data memory (RAM) space : 64K bytes • I/O ports : 8-bit ¥ 4 ports • Two 16-bit timer/counters • Multifunctional serial port (UART) • Five interrupt sources (Priority can be set) • Four sets of working registers (R0-7 ¥ 4) • Stack : Internal data memory (RAM) 128-byte area can be used arbitrarily (by SP specified) • Two CPU power-down modes (1) Idle mode : CPU stopped while oscillation continued. (Software setting) (2) PD mode : CPU and oscillation all stopped. (Software setting) (Setting I/O ports to floating status possible) • Operating temperature : –40 to +85°C (@ 12 MHz, VCC = 5 V ± 20%) –20 to +70°C (@ 16 MHz, VCC = 5 V ± 5%) • 2-byte 1-machine cycle instructions : 1 msec. @ 12 MHz 0.75 msec. @ 16 MHz • Multiplication/division instructions : 4 msec. @ 12 MHz 3 msec. @ 16 MHz • Instruction code addressing method Byte specification : Data addressing (direct) Bit specification : Bit addressing 1/38 ¡ Semiconductor • Package options 40-pin plastic DIP (DIP40-P-600-2.54) : 44-pin plastic QFP (QFP44-P-910-0.80-2K) : 44-pin plastic QFJ (PLCC) (QFJ44-P-S650-1.27) : MSM80C31F/80C51F (MSM80C31F-¥¥¥RS) (MSM80C51F-¥¥¥RS) (MSM80C31F-¥¥¥GS) (MSM80C51F-¥¥¥GS) (MSM80C31F-¥¥¥JS) (MSM80C51F-¥¥¥JS) ¥¥¥ indicates the code number. DIFFERENCES BETWEEN MSM80C31F/MSM80C51F AND MSM80C31/MSM80C51 • Operating frequency 0.5 to 16 MHz ..................... MSM80C31F-1/MSM80C51F-1 0.5 to 12 MHz ..................... MSM80C31/MSM80C51/MSM80C31F/MSM80C51F • External clock input terminal XTAL1 ................................. MSM80C31F(-1)/MSM80C51F(-1) XTAL2 ................................. MSM80C31/MSM80C51 • Emulation mode Output impedance of ALE and PSEN pins becomes about 20 kW while CPU is being reset in MSM80C31F/MSM80C51F. Any other functions and electrical characteristics of MSM80.


MSM80C50 MSM80C51F M80C51


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