MSM80C154S/83C154S

MSM80C154S/83C154S

CMOS 8-Bit MCU

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.

file: /techref/okisemi/msm80-83.htm, 3KB, , updated: 1999/2/20 13:29, local time: 2010/3/19 14:59,

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