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PIC16F874A-I/ML Просмотр технического описания (PDF) - Microchip Technology
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Компоненты Описание
производитель
PIC16F874A-I/ML
28/40/44-Pin Enhanced Flash Microcontrollers
Microchip Technology
PIC16F874A-I/ML Datasheet PDF : 234 Pages
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PIC16F87XA
FIGURE 1-1:
PIC16F873A/876A BLOCK DIAGRAM
13
Program Counter
Data Bus
8
Flash
Program
Memory
8 Level Stack
(13-bit)
RAM
File
Registers
Program
Bus
14
Instruction reg
RAM Addr
(1)
9
Addr MUX
Direct Addr
7
Indirect
8 Addr
FSR reg
Status reg
8
Instruction
Decode &
Control
OSC1/CLKI
OSC2/CLKO
Timing
Generation
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
In-Circuit
Debugger
Low-Voltage
Programming
3
MUX
ALU
8
W reg
Timer0
MCLR V
DD
, V
SS
Timer1
Timer2
10-bit A/D
PORTA
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/CV
REF
RA3/AN3/V
REF
+
RA4/T0CKI/C1OUT
RA5/AN4/SS/C2OUT
PORTB
RB0/INT
RB1
RB2
RB3/PGM
RB4
RB5
RB6/PGC
RB7/PGD
PORTC
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
Data EEPROM
CCP1,2
Synchronous
Serial Port
USART
Comparator
Voltage
Reference
Device
PIC16F873A
PIC16F876A
Program Flash
4K words
8K words
Note 1:
Higher order bits are from the Status register.
Data Memory
192 Bytes
368 Bytes
Data EEPROM
128 Bytes
256 Bytes
DS39582B-page 6
2003 Microchip Technology Inc.
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