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PIC16F87 数据表(PDF) 65 Page - Microchip Technology

部件名 PIC16F87
功能描述  18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology
PDF  230 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

PIC16F87 数据表(HTML) 65 Page - Microchip Technology

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 2002-2013 Microchip Technology Inc.
DS30487D-page 65
PIC16F87/88
FIGURE 5-14:
BLOCK DIAGRAM OF RB6/AN5(3)/PGC/T1OSO/T1CKI 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 PORTB
WR TRISB
Set RBIF
TRIS Latch
RD TRISB
RD PORTB
RB7:RB4 pins
Weak
Pull-up
RD PORTB
Latch
Q3
Q1
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:
PIC16F88 devices only.
PGC/T1CKI
Analog
TTL
Input Buffer
Input Mode
T1OSCEN/ICD/PROG
From T1OSCO Output
To A/D Module Channel Input (PIC16F88 only)
Analog
Input Mode
Mode



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