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PIC16F87 데이터시트(PDF) 68 Page - Microchip Technology

부품명 PIC16F87
상세설명  18/20/28-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology
PDF  214 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F87 데이터시트(HTML) 68 Page - Microchip Technology

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PIC16F87/88
DS30487B-page 66
Preliminary
 2003 Microchip Technology Inc.
FIGURE 5-15:
BLOCK DIAGRAM OF RB7 PIN
Data Latch
From Other
RBPU(2)
P
VDD
I/O pin(1)
Q
D
CK
Q
D
CK
QD
EN
QD
EN
Data Bus
WR
T1OSCEN
Set RBIF
TRIS Latch
RD TRISB
RD PORTB
RB7:RB4 pins
Weak
Pull-up
RD PORTB
Latch
Q3
Q1
PORTB
Note 1:
I/O pins have diode protection to VDD and VSS.
2:
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
PGD
PGD
PORT/Program Mode/ICD
Analog
TTL
Input Buffer
Input Mode
To T1OSCI Input
1
0
PGD DRVEN
T1OSCEN
WR
TRISB
To A/D Module Channel Input (PIC16F88 only)
1
0
Analog Input Mode



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