PIC16F77-E/PT Microchip Technology, PIC16F77-E/PT Datasheet - Page 34

• Manufacturer Part Number: PIC16F77-E/PT
• Description: IC MCU FLASH 8KX14 A/D 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F77-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: PIC16F77E/PT

PIC16F7X
TABLE 4-1:
TABLE 4-2:
DS30325B-page 32
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
Legend: TTL = TTL input, ST = Schmitt Trigger input
05h
85h
9Fh
Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'. Shaded cells are not used by PORTA.
Address
Note:
Name
When using the SSP module in SPI Slave mode and SS enabled, the A/D converter must be set to one of
the following modes where PCFG2:PCFG0 = 100, 101, 11x.
PORTA
TRISA
ADCON1
REF
Name
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
Bit 7
—
—
—
Buffer
TTL
TTL
TTL
TTL
TTL
Bit 6
ST
—
—
—
PORTA Data Direction Register
Input/output or analog input.
Input/output or analog input.
Input/output or analog input.
Input/output or analog input or V
Input/output or external clock input for Timer0. Output is open drain type.
Input/output or slave select input for synchronous serial port or analog input.
Bit 5
RA5
—
Bit 4
RA4
—
Bit 3
RA3
—
PCFG2 PCFG1 PCFG0
Bit 2
RA2
REF.
Function
Bit 1
RA1
Bit 0
RA0
 2002 Microchip Technology Inc.
--0x 0000
--11 1111
---- -000
Value on:
POR,
BOR
Value on all
--0u 0000
--11 1111
---- -000
RESETS
other