PIC12F639 Microchip Technology, PIC12F639 Datasheet - Page 9
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC12F639
Manufacturer Part Number
PIC12F639
Description
(PIC12F635 / PIC12F636 / PIC12F639) 8/14-PIN FLASH-BASED / 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY
Manufacturer
Microchip Technology
Datasheet
1.PIC12F639.pdf
(196 pages)
- Current page: 9 of 196
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FIGURE 1-3:
© 2005 Microchip Technology Inc.
T0CKI
OSC2/CLKOUT
OSC1/CLKIN
Oscillator
Program
Internal
K
8 MHz
EELOQ
Bus
Timer0
Generation
Timing
Instruction reg
Module
Decode and
Configuration
Instruction
14
Control
Oscillator
Program
2K x 14
Memory
Internal
31 kHz
Flash
PIC16F639 BLOCK DIAGRAM
C1IN- C1IN+ C1OUT C2IN- C2IN+ C2OUT
8
13
Low-voltage Detect
MCLR V
Direct Addr
Programmable
Program Counter
Start-up Timer
and Reference
8-level Stack
Brown-out
Watchdog
Power-up
Oscillator
Power-on
Wake-up
Comparators
Detect
Reset
Reset
Timer
Timer
2 Analog
(13-bit)
DD
V
SS
7
RAM Addr
PIC12F635/PIC16F636/639
Preliminary
8
3
Data Bus
(1)
Registers
Addr MUX
W reg
ALU
T1CKI
bytes
RAM
128
File
Timer1
FSR reg
Status reg
8
MUX
9
EEPROM
T1G
256 bytes
EEADDR
EEDAT
Indirect
DATA
Addr
8
LCCOM
PORTC
V
V
PORTA
DDT
SST
LCX
Analog Front-End
RC0/C2IN+
RC1/C2IN-/CS
RC2/SCLK/ALERT
RC3/LFDATA/RSSI/CCLK/SDIO
RC4/C2OUT
RC5
RA0/C1IN+/ICSPDAT/ULPWU
RA1/C1IN-/V
RA2/T0CKI/INT/C1OUT
RA3/MCLR/V
RA4/T1G/OSC2/CLKOUT
RA5/T1CKI/OSC1/CLKIN
125 kHz
(AFE)
LCY
DS41232B-page 7
LCZ
REF
PP
/ICSPCLK
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