MSM80C154S/83C154S

CMOS 8-Bit MCU 

Data Sheet (154 KB) is available.

Description

The MSM80C154S/MSM83C154S, designed for the high speed version of the existing MSM80C154/MSM83C154, is a higher performance 8-bit microcontroller providing low-power consumption.

The MSM80C154S/MSM83C154S covers the functions and operating range of the existing MSM80C154/83C154/80C51F/80C31F. The MSM80C154S is identical to the MSM83C154S except it does not contain the internal program memory (ROM).

Features

• Operating range
  • Operating frequency:
    • 0 to 3 MHz (V _CC =2.2 to 6.0 V)
    • 0 to 12 MHz (V _CC =3.0 to 6.0 V)
    • 0 to 24 MHz (V _CC =4.5 to 6.0 V)
  • Operating voltage:
    • 2.2 to 6.0 V
  • Operating temperature:
    • -40 to +85°C (Operation at +125°C conforms to the other specification)
• Fully static circuit
• Upward compatible with the MSM80C51F/80C31F
• On-chip program memory: 16K words x 8 bits ROM (MSM83C154S only)
• On-chip data memory: 256 words x 8 bits RAM
• External program memory address space: 64K bytes ROM (Max)
• External data memory address space: 64K bytes RAM
• I/O ports: 4 ports x 8 bits
  • (Port 1,2,3, impedance programmable): 32
• 16-bit timer/counters: 3
• Multifunctional serial port:
  • I/O Expansion mode
  • UART mode (featuring error detection)
• 6-source 2-priority level
  • Interrupt and multi-level
  • Interrupt available by programming IP and IE registers
• Memory-mapped special function registers
• Bit addressable data memory and SFRs
• Minimum instruction cycle: 500 ns @ 24 MHz operation
• Standby functions:
  • Power-down mode (oscillator stop)
  • Activated by software or hardware; providing ports with floating or active status
  • The software power-down stet mode is terminated by interrupt signal enabling execution from the address.