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PIC16F8X

18-pin Flash/EEPROM 8-Bit Microcontrollers

Devices Included in this Data Sheet:

•

PIC16F83

PIC16F84

PIC16CR83

PIC16CR84

Extended voltage range devices available

(PIC16LF8X, PIC16LCR8X)

Pin Diagrams

PDIP, SOIC

RA2

RA3

RA4/T0CKI

MCLR

RB0/INT

RB1

RB2

RB3



RA1

RA0

OSC1/CLKIN

OSC2/CLKOUT

RB7

RB6

RB5

RB4

PIC16F8X

PIC16CR8X

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

Device

PIC16F83

PIC16F84

Program

Memory

(words)

512 Flash

1 K Flash

Data

RAM

EEPROM

(bytes) (bytes)

Max.

Freq

(MHz)

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

PIC16CR83 512 ROM

PIC16CR84 1 K ROM

•

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<7:4> interrupt on change

- Data EEPROM write complete

• 1000 erase/write cycles Flash program memory

• 10,000,000 erase/write cycles EEPROM data mem-

ory

• EEPROM Data Retention > 40 years

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:

- < 2 mA typical @ 5V, 4 MHz

- 15

A

typical @ 2V, 32 kHz

- < 1

A

typical standby current @ 2V

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



1996-2013 Microchip Technology Inc.

DS30430D-page 1

PIC16F8X

Table of Contents

1.0 General Description ...................................................................................................................................................................... 3

2.0 PIC16F8X Device Varieties .......................................................................................................................................................... 5

3.0 Architectural Overview.................................................................................................................................................................. 7

4.0 Memory Organization ................................................................................................................................................................. 11

5.0 I/O Ports...................................................................................................................................................................................... 21

6.0 Timer0 Module and TMR0 Register............................................................................................................................................ 27

7.0 Data EEPROM Memory.............................................................................................................................................................. 33

8.0 Special Features of the CPU ...................................................................................................................................................... 37

9.0 Instruction Set Summary ............................................................................................................................................................ 53

10.0 Development Support ................................................................................................................................................................. 69

11.0 Electrical Characteristics for PIC16F83 and PIC16F84.............................................................................................................. 73

12.0 Electrical Characteristics for PIC16CR83 and PIC16CR84........................................................................................................ 85

13.0 DC & AC Characteristics Graphs/Tables.................................................................................................................................... 97

14.0 Packaging Information .............................................................................................................................................................. 109

Appendix A: Feature Improvements - From PIC16C5X To PIC16F8X .......................................................................................... 113

Appendix B: Code Compatibility - from PIC16C5X to PIC16F8X.................................................................................................. 113

Appendix C: What’s New In This Data Sheet ................................................................................................................................. 114

Appendix D: What’s Changed In This Data Sheet ......................................................................................................................... 114

Appendix E: Conversion Considerations - PIC16C84 to PIC16F83/F84 And PIC16CR83/CR84.................................................. 115

Index ................................................................................................................................................................................................. 117

On-Line Support................................................................................................................................................................................. 119

Reader Response .............................................................................................................................................................................. 120

PIC16F8X Product Identification System ........................................................................................................................................... 121

Sales and Support.............................................................................................................................................................................. 121

To Our Valued Customers

We constantly strive to improve the quality of all our products and documentation. We have spent a great deal of

time to ensure that these documents are correct. However, we realize that we may have missed a few things. If you

find any information that is missing or appears in error, please use the reader response form in the back of this data

sheet to inform us. We appreciate your assistance in making this a better document.

DS30430D-page 2



1996-2013 Microchip Technology Inc.

PIC16F8X

1.0

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

Table 1-1 lists the features of the PIC16F8X. A simpli-

fied block diagram of the PIC16F8X is shown in

Figure 3-1.

The PIC16F8X fits perfectly in applications ranging

from high speed automotive and appliance motor

control to low-power remote sensors, electronic locks,

security devices and smart cards. The Flash/EEPROM

technology makes customization of application

programs (transmitter codes, motor speeds, receiver

frequencies, security codes, etc.) extremely fast and

convenient. The small footprint packages make this

microcontroller series perfect for all applications with

space limitations. Low-cost, low-power, high

performance, ease-of-use and I/O flexibility make the

PIC16F8X very versatile even in areas where no

microcontroller use has been considered before

(e.g., timer functions; serial communication; capture,

compare and PWM functions; and co-processor

applications).

The serial in-system programming feature (via two

pins) offers flexibility of customizing the product after

complete assembly and testing. This feature can be

used to serialize a product, store calibration data, or

program the device with the current firmware before

shipping.

All PIC

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.

PIC16F8X microcontrollers typically achieve a 2:1 code

compression and up to a 4:1 speed improvement (at 20

MHz) over other 8-bit microcontrollers in their class.

The PIC16F8X has up to 68 bytes of RAM, 64 bytes of

Data EEPROM memory, and 13 I/O pins. A timer/coun-

ter is also available.

The PIC16CXX family has special features to reduce

external components, thus reducing cost, enhancing

system reliability and reducing power consumption.

There are four oscillator options, of which the single pin

RC oscillator provides a low-cost solution, the LP

oscillator minimizes power consumption, XT is a

standard crystal, and the HS is for High Speed crystals.

The SLEEP (power-down) mode offers power saving.

The user can wake the chip from sleep through several

external and internal interrupts and resets.

A highly reliable Watchdog Timer with its own on-chip

RC oscillator provides protection against software lock-

up.

The devices with Flash program memory allow the

same device package to be used for prototyping and

production. In-circuit reprogrammability allows the

code to be updated without the device being removed

from the end application. This is useful in the

development of many applications where the device

may not be easily accessible, but the prototypes may

require code updates. This is also useful for remote

applications where the code may need to be updated

(such as rate information).

1.1

Family and Upward Compatibility

Those users familiar with the PIC16C5X family of

microcontrollers will realize that this is an enhanced

version of the PIC16C5X architecture. Please refer to

Appendix A for a detailed list of enhancements. Code

written for PIC16C5X devices can be easily ported to

PIC16F8X devices (Appendix B).

1.2

Development Support

The PIC16CXX family is supported by a full-featured

macro assembler, a software simulator, an in-circuit

emulator, a low-cost development programmer and a

full-featured programmer. A “C” compiler and fuzzy

logic support tools are also available.



1996-2013 Microchip Technology Inc.

DS30430D-page 3

PIC16F8X

TABLE 1-1

PIC16F8X FAMILY OF DEVICES

PIC16F83

Clock

Maximum Frequency

of Operation (MHz)

Flash Program Memory

EEPROM Program Memory

Memory

ROM Program Memory

Data Memory (bytes)

Data EEPROM (bytes)

Peripherals

Timer Module(s)

Interrupt Sources

I/O Pins

Features

Voltage Range (Volts)

Packages

512

—

TMR0

2.0-6.0

18-pin DIP,

SOIC

—

512

TMR0

2.0-6.0

18-pin DIP,

SOIC

PIC16CR83

—

TMR0

2.0-6.0

18-pin DIP,

SOIC

PIC16F84

—

TMR0

2.0-6.0

18-pin DIP,

SOIC

PIC16CR84

All PIC

Family devices have Power-on Reset, selectable Watchdog Timer, selectable code protect and high I/O current capability.

All PIC16F8X Family devices use serial programming with clock pin RB6 and data pin RB7.

DS30430D-page 4



1996-2013 Microchip Technology Inc.

PIC16F8X

2.0

PIC16F8X DEVICE VARIETIES

2.3

A variety of frequency ranges and packaging options

are available. Depending on application and production

requirements the proper device option can be selected

using the information in this section. When placing

orders, please use the “PIC16F8X Product

Identification System” at the back of this data sheet to

specify the correct part number.

There are four device “types” as indicated in the device

number.

as in PIC16F84. These devices have Flash

program memory and operate over the standard

voltage range.

LF,

as in PIC16LF84. These devices have Flash

program memory and operate over an extended

voltage range.

CR,

as in PIC16CR83. These devices have

ROM program memory and operate over the

standard voltage range.

LCR,

as in PIC16LCR84. These devices have

ROM program memory and operate over an

extended voltage range.

Serialized Quick-Turnaround-

Production (SQTP

) Devices

Microchip offers the unique programming service

where a few user-defined locations in each device are

programmed with different serial numbers. The serial

numbers

may

random,

pseudo-random

or sequential.

Serial programming allows each device to have a

unique number which can serve as an entry-code,

password or ID number.

For information on submitting a SQTP code, please

contact your Microchip Regional Sales Office.

2.4

ROM Devices

Some of Microchip’s devices have a corresponding

device where the program memory is a ROM. These

devices give a cost savings over Microchip’s traditional

user programmed devices (EPROM, EEPROM).

ROM devices (PIC16CR8X) do not allow serialization

information in the program memory space. The user

may program this information into the Data EEPROM.

For information on submitting a ROM code, please

contact your Microchip Regional Sales Office.

When discussing memory maps and other architectural

features, the use of

and

also implies the

and

LCR

versions.

2.1

Flash Devices

These devices are offered in the lower cost plastic

package, even though the device can be erased and

reprogrammed. This allows the same device to be used

for prototype development and pilot programs as well

as production.

A further advantage of the electrically-erasable Flash

version is that it can be erased and reprogrammed in-

circuit, or by device programmers, such as Microchip's

PICSTART

Plus or PRO MATE

II programmers.

2.2

Quick-Turnaround-Production (QTP)

Devices

Microchip offers a QTP Programming Service for

factory production orders. This service is made

available for users who choose not to program a

medium to high quantity of units and whose code

patterns have stabilized. The devices have all Flash

locations and configuration options already pro-

grammed by the factory. Certain code and prototype

verification procedures do apply before production

shipments are available.

For information on submitting a QTP code, please

contact your Microchip Regional Sales Office.



1996-2013 Microchip Technology Inc.

DS30430D-page 5