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PIC18F4685-I/SP датащи(PDF) 132 Page - Microchip Technology

номер детали PIC18F4685-I/SP
подробное описание детали  28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
PDF  484 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4685-I/SP датащи(HTML) 132 Page - Microchip Technology

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PIC18F2682/2685/4682/4685
DS39761B-page 130
Preliminary
© 2007 Microchip Technology Inc.
TABLE 10-1:
PORTA I/O SUMMARY
Pin Name
Function
I/O
TRIS
Buffer
Description
RA0/AN0/CVREF
RA0
OUT
0
DIG
LATA<0> data output.
IN
1
TTL
PORTA<0> data input.
AN0
IN
1
ANA
A/D input channel 0. Enabled on POR, this analog input overrides the
digital input (read as clear – low level).
CVREF(1)
OUT
x
ANA
Comparator voltage reference analog output. Enabling this analog
output overrides the digital I/O (read as clear – low level).
RA1/AN1
RA1
OUT
0
DIG
LATA<1> data output.
IN
1
TTL
PORTA<1> data input.
AN1
IN
1
ANA
A/D input channel 1. Enabled on POR, this analog input overrides the
digital input (read as clear – low level).
RA2/AN2/VREF-RA2
OUT
0
DIG
LATA<2> data output.
IN
1
TTL
PORTA<2> data input.
AN2
IN
1
ANA
A/D input channel 2. Enabled on POR, this analog input overrides the
digital input (read as clear – low level).
VREF-IN
1
ANA
A/D and comparator negative voltage analog input.
RA3/AN3/VREF+RA3
OUT
0
DIG
LATA<3> data output.
IN
1
TTL
PORTA<3> data input.
AN3
IN
1
ANA
A/D input channel 3. Enabled on POR, this analog input overrides the
digital input (read as clear – low level).
VREF+IN
1
ANA
A/D and comparator positive voltage analog input.
RA4/T0CKI
RA4
OUT
0
DIG
LATA<4> data output.
IN
1
TTL
PORTA<4> data input.
T0CKI
IN
1
ST
Timer0 clock input.
RA5/AN4/SS/HLVDIN RA5
OUT
0
DIG
LATA<5> data output.
IN
1
TTL
PORTA<5> data input.
AN4
IN
1
ANA
A/D input channel 4. Enabled on POR, this analog input overrides the
digital input (read as clear – low level).
SS
IN
1
TTL
Slave select input for MSSP.
HLVDIN
IN
1
ANA
High/Low-Voltage Detect external trip point input.
OSC2/CLKO/RA6
OSC2
OUT
x
ANA
Output connection, selected by FOSC3:FOSC0 Configuration bits.
Enabling OSC2 overrides digital I/O.
CLKO
OUT
x
DIG
Output connection, selected by FOSC3:FOSC0 Configuration bits.
Enabling CLKO overrides digital I/O (FOSC/4).
RA6
OUT
0
DIG
LATA<6> data output.
IN
1
TTL
PORTA<6> data input.
OSC1/CLKI/RA7
OSC1
IN
x
ANA
Main oscillator input connection, determined by FOSC3:FOSC0
Configuration bits. Enabling OSC1 overrides digital I/O.
CLKI
IN
x
ANA
Main clock input connection, determined by FOSC3:FOSC0
Configuration bits. Enabling CLKI overrides digital I/O.
RA7
OUT
0
DIG
LATA<7> data output.
IN
1
TTL
PORTA<7> data input.
Legend:
OUT = Output; IN = Input; ANA = Analog Signal; DIG = Digital Output; ST = Schmitt Buffer Input; TTL = TTL Buffer Input
Note
1:
This bit is unimplemented on PIC18F2682/2685 devices.



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