MSM83C154S

E2E1023-27-Y3 ¡ Semiconductor MSM80C154S/83C154S ¡ Semiconductor CMOS 8-bit Microcontroller This version: Jan. 1998 MSM80C154S/83C154S Previous version: Nov. 1996 GENERAL 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 Operating voltage Operating temperature 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 h...