PIC16F676 Microchip Technology Inc., PIC16F676 Datasheet - Page 7

• Manufacturer Part Number: PIC16F676
• Description: 14-pin, Flash-based 8-bit Cmos Microcontroller
• Manufacturer: Microchip Technology Inc.

1.0
This document contains device specific information for
the PIC16F630/676. Additional information may be
found in the PIC
(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
FIGURE 1-1:
© 2007 Microchip Technology Inc.
OSC2/CLKOUT
OSC1/CLKIN
T0CKI
T1CKI
T1G
DEVICE OVERVIEW
V
REF
AN0 AN1 AN2 AN3
Program
Oscillator
Analog to Digital Converter
Bus
Internal
®
Timer0
Mid-Range Reference Manual
(PIC16F676 only)
PIC16F630/676 BLOCK DIAGRAM
Instruction reg
Configuration
Generation
Instruction
Decode &
1K x 14
14
Program
FLASH
Memory
Control
Timing
AN4 AN5 AN6 AN7
8
13
MCLR
Timer1
Direct Addr
Start-up Timer
Program Counter
INT
8-Level Stack
Watchdog
Brown-out
Power-up
Power-on
Oscillator
Detect
Reset
Timer
Timer
(13-bit)
V
DD
CIN- CIN+ COUT
V
and reference
SS
7
Comparator
Analog
RAM Addr
8
3
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.
Data Bus
Registers
Addr MUX
W reg
ALU
bytes
RAM
File
64
STATUS reg
FSR reg
8
9
MUX
8
EEPROM
EEADDR
128 bytes
EEDATA
Indirect
DATA
Addr
8
PIC16F630/676
PORTA
PORTC
DS40039E-page 5
RA0
RA1
RA2
RA3
RA4
RA5
RC0
RC1
RC2
RC3
RC4
RC5