描述 Description

GENERAL DESCRIPTION
The PIC16F8X is a group in the PIC16CXX family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers. This group contains the following devices:
? PIC16F83
? PIC16F84
? PIC16CR83
? PIC16CR84All PICmicro? microcontrollers employ an advanced RISC architecture. PIC16F8X devices have enhanced core features, eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with a separate 8-bit wide data bus. The two stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available. Additionally, a large register set is used to achieve a very high performance level.High Performance RISC CPU Features:
? Only 35 single word instructions to learn
? All instructions single cycle except for program branches which are two-cycle
? Operating speed: DC - 10 MHz clock input
?????????????????????? DC - 400 ns instruction cycle
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? 14-bit wide instructions
? 8-bit wide data path
? 15 special function hardware registers
? Eight-level deep hardware stack
? Direct, indirect and relative addressing modes
? Four interrupt sources:
?? - External RB0/INT pin
?? - TMR0 timer overflow
?? - PORTB interrupt on change
?? - Data EEPROM write complete
? 1000 erase/write cycles Flash program memory
? 10,000,000 erase/write cycles EEPROM data memory
? EEPROM Data Retention 40 yearsPeripheral Features:
? 13 I/O pins with individual direction control
? High current sink/source for direct LED drive
?? - 25 mA sink max. per pin
?? - 20 mA source max. per pin
? TMR0: 8-bit timer/counter with 8-bit programmable prescalerSpecial Microcontroller Features:
? In-Circuit Serial Programming (ICSP?) - via two pins (ROM devices support only Data EEPROM programming)
? Power-on Reset (POR)
? Power-up Timer (PWRT)
? Oscillator Start-up Timer (OST)
? Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
? Code-protection
? Power saving SLEEP mode
? Selectable oscillator optionsCMOS Flash/EEPROM Technology:
? Low-power, high-speed technology
? Fully static design
? Wide operating voltage range:
?? - Commercial: 2.0V to 6.0V
?? - Industrial: 2.0V to 6.0V
? Low power consumption:
?? -