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參數(shù)資料
型號: W921F840
廠商: WINBOND ELECTRONICS CORP
英文描述: 4-Bit Microcontroller(4位的微控制器)
中文描述: 4位微控制器(第4位的微控制器)
文件頁數(shù): 4/68頁
文件大小: 451K
代理商: W921F840
W921F840
- 4 -
14 bidirectional I/O lines:
PA Port: PA.0 to PA.3 open drain and pull high resistor option
PB Port: PB.0 to PB.3 open drain and pull high resistor option
PC Port: PC.1 to PC.3 open drain and pull high resistor option
PD Port: PD.0 to PD.1 open drain and pull high resistor option
Serial I/O Interface
Clock synchronous multi-nibbles serial transmitter/receiver interface
DTMF Generator
One channel DTMF generator
Beep Tone Generator
One channel beep tone generator
8-bit D/A Converter
One channel 8-bit D/A converter
Voltage Comparator
Multiplexed four channel voltage comparator
Timer/Counter
Timer 0: 2 to 19 order divider, auto-reload timer, watch-dog timer
Timer 1: 2 to 19 order divider, auto-reload timer, arbitrary waveform generator, external event
counter
Timer 2: 2 to 19 order divider, auto-reload timer, arbitrary waveform generator, period/pulse width
measurement function
Timer 3: 2 to 19 order divider, auto-reload timer
Interrupt
Two external sources: INT0 (P4.3), P4 Port (P4.0 to P4.2)
Six internal sources: Timer 0, Timer 1, Timer 2, Timer 3, Comparator, Serial Port
Operating Mode (System Clock)
Normal mode: System clock operating
HOLD mode: No operation except for oscillator (system clock stops only)
STOP mode: No operation including oscillator
Addressing Mode
ROM: Short jump addressing mode
Indirect call addressing mode
Long jump/call addressing mode
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