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PIC16LC771 数据表(PDF) 32 Page - Microchip Technology

部件名 PIC16LC771
功能描述  18/20-Pin, 8-Bit CMOS Microcontrollers with 10/12-Bit A/D
PDF  224 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

PIC16LC771 数据表(HTML) 32 Page - Microchip Technology

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PIC16C717/770/771
DS41120C-page 32
 1999-2013 Microchip Technology Inc.
TABLE 3-1:
PORTA FUNCTIONS
TABLE 3-2:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Name
Function
Input
Type
Output
Type
Description
RA0/AN0
RA0
ST
CMOS
Bi-directional I/O
AN0
AN
A/D input
RA1/AN1/LVDIN
RA1
ST
CMOS
Bi-directional I/O
AN1
AN
A/D input
LVDIN
AN
LVD input reference
RA2/AN2/VREF-/VRL
RA2
ST
CMOS
Bi-directional I/O
AN2
AN
A/D input
VREF-
AN
Negative analog reference input
VRL
AN
Internal voltage reference low output
RA3/AN3/VREF+/VRH
RA3
ST
CMOS
Bi-directional I/O
AN3
AN
A/D input
VREF+
AN
Positive analog reference input
VRH
AN
Internal voltage reference high output
RA4/T0CKI
RA4
ST
OD
Bi-directional I/O
T0CKI
ST
TMR0 clock input
RA5/MCLR/VPP
RA5
ST
Input port
MCLR
ST
Master clear
VPP
Power
Programming voltage
RA6/OSC2/CLKOUT
RA6
ST
CMOS
Bi-directional I/O
OSC2
XTAL
Crystal/resonator
CLKOUT
CMOS
FOSC/4 output
RA7/OSC1/CLKIN
RA7
ST
CMOS
Bi-directional I/O
OSC1
XTAL
Crystal/resonator
CLKIN
ST/AN
External clock input/ER resistor connection
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR,
BOR
Value on all
other
RESETS
05h
PORTA
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
xxxx 0000
uuuu 0000
85h
TRISA
PORTA Data Direction Register
1111 1111
1111 1111
9Dh
ANSEL
—
—
ANS5
ANS4
ANS3
ANS2
ANS1
ANS0
--11 1111
--11 1111
Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'. Shaded cells are not used by PORTA.



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