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PIC16C781 데이터시트(PDF) 39 Page - Microchip Technology

부품명 PIC16C781
상세설명  8-Bit CMOS Microcontrollers with A/D, D/A, OPAMP, Comparators and PSMC
PDF  186 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16C781 데이터시트(HTML) 39 Page - Microchip Technology

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 2001 Microchip Technology Inc.
Preliminary
DS41171A-page 37
PIC16C781/782
FIGURE 3-9:
BLOCK DIAGRAM OF RB0/INT/AN4/VR PIN
Data Bus
WR PORTB
WR TRISB
RD PORTB
PORTB Reg.
TRIS Reg.
INT Input
Q
D
CK
Q
D
CK
EN
QD
EN
RD TRISB
RBPU
Weak
Pull-up
P
N
VSS
VDD
Q
D
CK
Q
D
CK
WPUB Reg.
IOCB Reg.
WR WPUB
Q
D
Q
EN
D
Q
EN
Q3
Q1
...
Set
RBIF
From other
RB<7:0> pins
Q
Q
D
Q
CK
ANSEL Reg.
WR ANSEL
WR IOCB
Q
P
VDD
Q
AN4/VR
VR Output
VROE
VREN
RB0/INT/AN4/VR
RD WPUB
RD ANSEL
Analog Function Enable
RD IOCB
VREN & VROE
ANSEL<4>
TRISB<0>
FUNCTION
PORTB<0> READ
0
0
1
Digital In
Pin
0
0
0
Digital Out
Pin
0
1
x
Analog In
0
1
x
x
Analog Out
0
TTL
VDD
VSS



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