Datasheet

© 2007 Microchip Technology Inc. DS40039E-page 5
PIC16F630/676
1.0 DEVICE OVERVIEW
This document contains device specific information for
the PIC16F630/676. Additional information may be
found in the PIC
®
Mid-Range Reference Manual
(DS33023), which may be obtained from your local
Microchip Sales Representative or downloaded from
the Microchip web site. 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 PIC16F630 and PIC16F676 devices are covered
by this Data Sheet. They are identical, except the
PIC16F676 has a 10-bit A/D converter. They come in
14-pin PDIP, SOIC and TSSOP packages. Figure 1-1
shows a block diagram of the PIC16F630/676 devices.
Table 1-1 shows the pinout description.
FIGURE 1-1: PIC16F630/676 BLOCK DIAGRAM
FLASH
Program
Memory
13
Data Bus
8
14
Program
Bus
Instruction reg
Program Counter
RAM
File
Registers
Direct Addr
7
RAM Addr
9
Addr MUX
Indirect
Addr
FSR reg
STATUS reg
MUX
ALU
W reg
Instruction
Decode &
Control
Timing
Generation
OSC1/CLKIN
OSC2/CLKOUT
PORTA
8
8
8
3
8-Level Stack
64
1K x 14
bytes
(13-bit)
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
MCLR
VSS
Brown-out
Detect
Analog
Timer0 Timer1
DATA
EEPROM
128 bytes
EEDATA
EEADDR
RA0
RA1
RA2
RA3
RA4
RA5
Comparator
Analog to Digital Converter
(PIC16F676 only)
AN0 AN1AN2 AN3
CIN- CIN+ COUT
T0CKI
INT
T1CKI
Configuration
Internal
Oscillator
VREF
and reference
T1G
PORTC
RC0
RC1
RC2
RC3
RC4
RC5
AN4 AN5 AN6AN7
V
DD
8