Oki MSM80C154S Specification Sheet

Also see for MSM80C154S: User manual

Contents

259MSM80C154S/83C154S¡ SemiconductorGENERAL DESCRIPTIONThe MSM80C154S/MSM83C154S, designed for the high speed version of the existingMSM80C154/MSM83C154, is a higher performance 8-bit microcontroller providing low-powerconsumption.The MSM80C154S/MSM83C154S covers the functions and operating range of the existingMSM80C154/83C154/80C51F/80C31F.The MSM80C154S is identical to the MSM83C154S except it does not contain the internalprogram memory (ROM).FEATURES• Operating rangeOperating frequency : 0 to 3 MHz (V cc=2.2 to 6.0 V)0 to 12 MHz (Vcc =3.0 to 6.0 V)0 to 24 MHz (Vcc =4.5 to 6.0 V)Operating voltage : 2.2 to 6.0 VOperating temperature : –40 to +85°C (Operation at +125°C conforms tothe 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 levelInterrupt and multi-levelInterrupt 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; providingports with floating or active statusThe software power-down stet mode is termi-nated by interrupt signal enabling execution fromthe interrupted address.¡ SemiconductorMSM80C154S/83C154SCMOS 8-bit Microcontroller