MSM80C154S/83C154S, ¡ Semiconductor | Oki MSM83C154S specification

MSM80C154S/83C154S		¡ Semiconductor
• Package options
40-pin plastic DIP (DIP40-P-600-2.54)	:	(Product name: MSM80C154SRS/
		MSM83C154S-xxxRS)
44-pin plastic QFP (QFP44-P-910-0.80-2K) :		(Product name: MSM80C154SGS-2K/
		MSM83C154S-xxxGS-2K)
44-pin QFJ (QFJ44-P-S650-1.27)	:	(Product name: MSM80C154SJS/
		MSM83C154S-xxxJS)
44-pin TQFP (TQFP44-P-1010-0.80-K)	:	(Product name: MSM80C154STS-K/
		MSM83C154S-xxxTS-K)

xxx: indicates the code number

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Oki MSM83C154S manual MSM80C154S/83C154S, ¡ Semiconductor

Contents

¡SemiconductorSemiconductor MSM80C154S/83C154S FeaturesGeneral Description Cmos 8-bit Microcontroller MSM80C154S/83C154S ¡ Semiconductor 2PORT SignalTIMER/COUNTER 0 Interrupt Address Decoder Psen PIN Configuration TOP ViewPin Plastic DIP 44 P1.4 P1.5 P1.6 P1.7 ResetPin Plastic QFP 25 P2.7 24 P2.6 23 P2.5 P2.4 Pin Plastic Tqfp XTAL1 XTAL2 19 P3.7/RD 18 P3.6/WR Pin Plastic QFJ35 EA P3.0/RXD 34 NC 33 ALE P3.1/TXD ALE PIN DescriptionsMSM80C154S/83C154S¡ Semiconductor XTAL2 ¡ SemiconductorMSM80C154S/83C154SXTAL1 Diagram of Special Function Registers Registers Special Function Registers Timer mode register Tmod Gate CPU is reset Power control register PconInterrupt signal Tcon Timer control register TconInterrupt request flag for external interrupt TR1 TF0 TR0 IE1 IT1 IE0 IT0 Mode Serial port control register SconREN Reserved bit. The output data is 1 if the bit is read Interrupt enable register IEInterrupt control bit for serial port Overall interrupt control bit Priority interrupt circuit control bit Priority is assigned when bit isInterrupt priority register IP PCT PT2 PT1 PX1 PT0 PX0 Bank IZC When this bit is set toControl register Iocon Received at a serial port Timer 2 control register T2CON Memory Maps Program Area BANK3 HEX 0FF AddressingindirectregisterBIT RAM BANK2 2FH MSM80C154S/83C154S Diagram of Internal Data Memory RAM0FFH 0FH Absolute Maximum Ratings Recommended Operating Conditions Port 0, ALE, Psen Electrical CharacteristicsDC Characteristics Maximum power supply current normal operation ICC mA Maximum power supply current idle mode ICC mA VO=0.1 Port 1, 2 Logical 1 to 0 Transition Output High Voltage Port 1, 2Logical 0 Input Current VI=0.1 Logical 1 Output Current 285 Output Measuring circuitsInput Falling Edge Psen Signal Width ALE Signal WidthAddress Setup Time To ALE Falling Edge Address Hold Time Instr External program memory read cyclePORT0 External data memory access AC characteristics External data memory read cycle External data memory write cycle Serial port I/O Extension Mode AC characteristics Parameter Symbol Min Max Unit ALE Shift Clock Input Data XTAL1 external clock input waveform conditions AC Characteristics Measuring ConditionsExternal Oscillator Signal External Clock Drive Waveform Basictiming TimingDiagram 294