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MSM80C154S Datasheet

  • MSM80C154S

  • USER'S MANUAL

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E2E1023-27-Y3
隆 Semiconductor
MSM80C154S/83C154S
隆 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
鈥?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)
: 2.2 to 6.0 V
: 鈥?0 to +85擄C (Operation at +125擄C conforms to
the other specification.)
Operating voltage
Operating temperature
鈥?Fully static circuit
鈥?Upward compatible with the MSM80C51F/80C31F
鈥?On-chip program memory
: 16K words x 8 bits ROM (MSM83C154S only)
鈥?On-chip data memory
: 256 words x 8 bits RAM
鈥?External program memory address space : 64K bytes ROM (Max)
鈥?External data memory address space
: 64K bytes RAM
鈥?I/O ports
: 4 ports x 8 bits
(Port 1, 2, 3, impedance programmable) : 32
鈥?16-bit timer/counters
: 3
鈥?Multifunctional serial port
: I/O Expansion mode
: UART mode (featuring error detection)
鈥?6-source 2-priority level
Interrupt and multi-level
Interrupt available by programming IP and IE registers
鈥?Memory-mapped special function registers
鈥?Bit addressable data memory and SFRs
鈥?Minimum instruction cycle
: 500 ns @ 24 MHz operation
鈥?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 termi-
nated by interrupt signal enabling execution from
the interrupted address.
1/40

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