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
●• PIC16CR84
●All 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
●• 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 years
●Peripheral 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 prescaler
●Special 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 options
●CMOS 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:
● - - 15 µA typical @ 2V, 32 kHz
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