PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 128

• 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
TABLE 12-6:
DS30292C-page 126
W
INDF
TMR0
PCL
STATUS
FSR
PORTA
PORTB
PORTC
PORTD
PORTE
PCLATH
INTCON
PIR1
PIR2
TMR1L
TMR1H
T1CON
TMR2
T2CON
SSPBUF
SSPCON
CCPR1L
CCPR1H
CCP1CON
RCSTA
TXREG
RCREG
CCPR2L
CCPR2H
CCP2CON
ADRESH
ADCON0
OPTION_REG
TRISA
TRISB
TRISC
TRISD
TRISE
PIE1
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ’0’, q = value depends on condition,
Note 1: One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up).
Register
2: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector
3: See Table 12-5 for RESET value for specific condition.
r = reserved, maintain clear
(0004h).
INITIALIZATION CONDITIONS FOR ALL REGISTERS
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
873
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
874
Devices
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
877
Brown-out Reset
Power-on Reset,
xxxx xxxx
xxxx xxxx
0001 1xxx
xxxx xxxx
--0x 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
---- -xxx
---0 0000
0000 000x
r000 0000
0000 0000
-r-0 0--0
xxxx xxxx
xxxx xxxx
--00 0000
0000 0000
-000 0000
xxxx xxxx
0000 0000
xxxx xxxx
xxxx xxxx
--00 0000
0000 000x
0000 0000
0000 0000
xxxx xxxx
xxxx xxxx
0000 0000
xxxx xxxx
0000 00-0
1111 1111
--11 1111
1111 1111
1111 1111
1111 1111
0000 -111
r000 0000
0000 0000
0000h
N/A
MCLR Resets,
uuuu uuuu
uuuu uuuu
000q quuu
uuuu uuuu
--0u 0000
uuuu uuuu
uuuu uuuu
uuuu uuuu
---- -uuu
---0 0000
0000 000u
r000 0000
0000 0000
-r-0 0--0
uuuu uuuu
uuuu uuuu
--uu uuuu
0000 0000
-000 0000
uuuu uuuu
0000 0000
uuuu uuuu
uuuu uuuu
--00 0000
0000 000x
0000 0000
0000 0000
uuuu uuuu
uuuu uuuu
0000 0000
uuuu uuuu
0000 00-0
1111 1111
--11 1111
1111 1111
1111 1111
1111 1111
0000 -111
r000 0000
0000 0000
WDT Reset
0000h
N/A
(3)
2001 Microchip Technology Inc.
Wake-up via WDT or
uuuu uuuu
uuuu uuuu
uuuq quuu
uuuu uuuu
--uu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---- -uuu
---u uuuu
uuuu uuuu
ruuu uuuu
uuuu uuuu
-r-u u--u
uuuu uuuu
uuuu uuuu
--uu uuuu
uuuu uuuu
-uuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uu-u
uuuu uuuu
--uu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu -uuu
ruuu uuuu
uuuu uuuu
PC + 1
Interrupt
N/A
(2)
(3)
(1)
(1)
(1)
(1)