PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 8

• Manufacturer Part Number: PIC16F877A-I/PT
• Description: 44 PIN, 7 KB FLASH, 368 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F877A-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 14K Bytes
• Ram Size: 368 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F87X
FIGURE 1-2:
DS30292C-page 6
PIC16F874
PIC16F877
Data EEPROM
Note 1: Higher order bits are from the STATUS register.
Device
Timer0
OSC2/CLKOUT
OSC1/CLKIN
Program
Bus
Program
FLASH
Instruction reg
Generation
Instruction
PIC16F874 AND PIC16F877 BLOCK DIAGRAM
Decode &
4K
8K
14
FLASH
Program
Control
Memory
Timing
CCP1,2
Timer1
Data Memory
192 Bytes
368 Bytes
8
13
MCLR
Direct Addr
Start-up Timer
Program Counter
Programming
Low-Voltage
8 Level Stack
Brown-out
Watchdog
Debugger
Power-up
Power-on
Oscillator
In-Circuit
Timer
Reset
Timer
Reset
(13-bit)
Synchronous
V
Serial Port
DD
Timer2
, V
EEPROM
128 Bytes
256 Bytes
SS
7
Data
RAM Addr
8
3
(1)
Data Bus
Addr MUX
Registers
W reg
ALU
Parallel Slave Port
RAM
File
STATUS reg
FSR reg
10-bit A/D
USART
9
MUX
8
Indirect
Addr
8
PORTC
PORTD
PORTA
PORTB
PORTE
2001 Microchip Technology Inc.
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
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
RE0/AN5/RD
RE1/AN6/WR
RE2/AN7/CS
REF
REF
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