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Description

18-pin Enhanced Flash/EEPROM 8-Bit Microcontroller

Package: PDIP 18Pin, SOIC 18Pin, SSOP 20 Pin Type

Manufacturer: Microchip Technology

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Description

The PIC16F84A belongs to the mid-range family of the PICmicro microcontroller devices. The program memory contains 1K words, which translates to 1024 instructions, since each 14-bit program memory word is the same width as each device instruction. The data memory (RAM) contains 68 bytes. Data EEPROM is 64 bytes. There are also 13 I/O pins that are user-configured on a pin-to-pin basis. Some pins are multiplexed with other device functions. These functions include:

1. External interrupt
2. Change on PORTB interrupt
3. Timer0 clock input

Pinout

High Performance RISC CPU Features

1. Only 35 single word instructions to learn
2. All instructions single-cycle except for program branches which are two-cycle
3. Operating speed: DC – 20 MHz clock input DC – 200 ns instruction cycle
4. 1024 words of program memory
5. 68 bytes of Data RAM
6. 64 bytes of Data EEPROM
7. 14-bit wide instruction words
8. 8-bit wide data bytes
9. 15 Special Function Hardware registers
10. Eight-level deep hardware stack

Part Number: PIC16F84

Function : Flash / EEPROM 8-Bit Microcontrollers

Package: DIP, SOIC 18-pin Type

Manufacturer: Microchip Technology

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Description

The PIC16F84 is a group in the PIC16CXX family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers. All PICmicro microcontrollers employ an advanced RISC architecture. PIC16F84 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-bitwide 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 35instructions (reduced instruction set) are available.Additionally, a large register set is used to achieve a very high performance level.

Pinout

High Performance RISC CPU Features

1. Only 35 single word instructions to learn
2. All instructions single cycle except for program branches which are two-cycle
3. 14-bit wide instructions
4. 8-bit wide data path
5. 15 special function hardware registers
6. Eight-level deep hardware stack
7. Direct, indirect and relative addressing modes

PIC16F8X FAMILY OF DEVICES