12F629 Microchip Technology, Inc., 12F629 Datasheet - Page 7

• Manufacturer Part Number: 12F629
• Description: 8-pin Flash-based 8-bit CMOS Microcontrollers
• Manufacturer: Microchip Technology, Inc.

1.0
This document contains device specific information for
the PIC12F629/675. Additional information may be
found in the PICmicro
(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:
 2003 Microchip Technology Inc.
T1G
T1CKI
T0CKI
OSC2/CLKOUT
OSC1/CLKIN
V
REF
Oscillator
Note 1: Higher order bits are from STATUS register.
Internal
4 MHz
Program
DEVICE OVERVIEW
Bus
Analog to Digital Converter
Timer0
(PIC12F675 only)
Instruction Reg
AN0 AN1 AN2 AN3
Generation
Instruction
V
Decode &
14
Program
Control
DD
Memory
Timing
1K x 14
FLASH
, V
SS
TM
PIC12F629/675 BLOCK DIAGRAM
Mid-Range Reference Manual
13
Timer1
Start-up Timer
Direct Addr
Program Counter
Oscillator
8-Level Stack
Brown-out
Watchdog
Power-up
Power-on
8
Detect
Reset
Timer
Timer
(13-bit)
CIN- CIN+ COUT
7
and reference
Comparator
Analog
8
3
Addr MUX
Registers
W Reg
ALU
64 x 8
RAM
File
Data Bus
STATUS Reg
FSR Reg
9
MUX
8
8
Sheet, and is highly recommended reading for a better
understanding of the device architecture and operation
of the peripheral modules.
The PIC12F629 and PIC12F675 devices are covered
by this Data Sheet. They are identical, except the
PIC12F675 has a 10-bit A/D converter. They come in
8-pin PDIP, SOIC, and MLF-S packages. Figure 1-1
shows a block diagram of the PIC12F629/675
devices. Table 1-1 shows the Pinout Description.
Addr
RAM
Indirect
EEPROM
128 bytes
EEADDR
EEDATA
Addr
DATA
(1)
8
PIC12F629/675
GP0/AN0/CIN+
GP1/AN1/CIN-/V
GP2/AN2/T0CKI/INT/COUT
GP3/MCLR/V
GP4/AN3/T1G/OSC2/CLKOUT
GP5/T1CKI/OSC1/CLKIN
DS41190C-page 5
PP
REF