PIC16C72 datasheet(3/128 Pages) MICROCHIP

3 / 128 page

PIC16C72 Series

 1998-2013 Microchip Technology Inc.

Preliminary

DS39016B-page 3

1.0

DEVICE OVERVIEW

This document contains device-specific information for

the operation of the PIC16C72 device. Additional infor-

mation may be found in the PIC® Mid-Range MCU Ref-

erence Manual (DS33023) which may be downloaded

from the Microchip website. The Reference Manual

should be considered a complementary document to

this data sheet, and is highly recommended reading for

a better understanding of the device architecture and

operation of the peripheral modules.

The PIC16C72 belongs to the Mid-Range family of the

PIC devices. A block diagram of the device is shown in

Figure 1-1.

The program memory contains 2K words which trans-

late to 2048 instructions, since each 14-bit program

memory word is the same width as each device instruc-

tion. The data memory (RAM) contains 128 bytes.

There are also 22 I/O pins that are user-configurable on

a pin-to-pin basis. Some pins are multiplexed with other

device functions. These functions include:

• External interrupt

• Change on PORTB interrupt

• Timer0 clock input

• Timer1 clock/oscillator

• Capture/Compare/PWM

• A/D converter

• SPI/I2C

Table 1-1 details the pinout of the device with descrip-

tions and details for each pin.

FIGURE 1-1:

PIC16C72/CR72 BLOCK DIAGRAM

EPROM/

Program

Memory

2K x 14

Data Bus

Program

Bus

Instruction reg

Program Counter

8 Level Stack

(13-bit)

RAM

File

Registers

128 x 8

Direct Addr

RAM Addr(1)

Addr MUX

Indirect

Addr

FSR reg

STATUS reg

MUX

ALU

W reg

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Instruction

Decode &

Control

Timing

Generation

OSC1/CLKIN

OSC2/CLKOUT

MCLR

VDD, VSS

Timer0

A/D

Synchronous

Serial Port

PORTA

PORTB

PORTC

RB0/INT

RB7:RB1

RC0/T1OSO/T1CKI

RC1/T1OSI

RC2/CCP1

RC3/SCK/SCL

RC4/SDI/SDA

RC5/SDO

RC6

RC7

Brown-out

Reset

Note 1:

Higher order bits are from the STATUS register.

CCP1

Timer1

Timer2

RA4/T0CKI

RA5/SS/AN4

RA3/AN3/VREF

RA2/AN2

RA1/AN1

RA0/AN0

ROM

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