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16F877 查看數據表(PDF) - Microchip Technology
零件编号
产品描述 (功能)
生产厂家
16F877
28/40/44-Pin Enhanced Flash Microcontrollers
Microchip Technology
16F877 Datasheet PDF : 218 Pages
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PIC16F87X
FIGURE 1-2:
PIC16F874 AND PIC16F877 BLOCK DIAGRAM
Device
PIC16F874
PIC16F877
Program
FLASH
4K
8K
Data Memory
192 Bytes
368 Bytes
Data
EEPROM
128 Bytes
256 Bytes
FLASH
Program
Memory
13
Program Counter
8 Level Stack
(13-bit)
Data Bus
8
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/CLKIN
OSC2/CLKOUT
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
Parallel Slave Port
Timer0
MCLR V
DD
, V
SS
Timer1
Timer2
10-bit A/D
PORTA
PORTB
PORTC
PORTD
PORTE
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-
RA3/AN3/V
REF
+
RA4/T0CKI
RA5/AN4/SS
RB0/INT
RB1
RB2
RB3/PGM
RB4
RB5
RB6/PGC
RB7/PGD
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
RE0/AN5/RD
RE1/AN6/WR
RE2/AN7/CS
Data EEPROM
CCP1,2
Synchronous
Serial Port
Note 1:
Higher order bits are from the STATUS register.
USART
DS30292C-page 6
2001 Microchip Technology Inc.
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