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PIC16F87 Datasheet(PDF) 59 Page - Microchip Technology

Part # PIC16F87
Description  18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology
PDF  230 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F87 Datasheet(HTML) 59 Page - Microchip Technology

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 2002-2013 Microchip Technology Inc.
DS30487D-page 59
PIC16F87/88
FIGURE 5-8:
BLOCK DIAGRAM OF RB0/INT/CCP1(3) PIN
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.
3: The CCP1 pin is determined by the CCPMX bit in Configuration Word 1 register.
Data Latch
RBPU(2)
P
VDD
Q
D
CK
Q
D
CK
Q
D
EN
Data Bus
WR PORTB
WR TRISB
RD TRISB
RD PORTB
Weak
Pull-up
RD PORTB
I/O pin(1)
TTL
Input
Buffer
TRIS Latch
0
1
CCP
CCP1M<3:0> = 1000, 1001, 11xx and CCPMX = 1
To INT0 or CCP
CCP1M<3:0> = 000



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