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PIC18F1220E/PQTP Datasheet(PDF) 96 Page - Microchip Technology

Part # PIC18F1220E/PQTP
Description  18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers
PDF  308 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F1220E/PQTP Datasheet(HTML) 96 Page - Microchip Technology

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PIC18F1220/1320
DS39605F-page 94
© 2007 Microchip Technology Inc.
FIGURE 10-11:
BLOCK DIAGRAM OF RB4/AN6/RX/DT/KBI0 PIN
Data Bus
WR LATB or
WR TRISB
Data Latch
TRIS Latch
RD TRISB
Q
D
Q
CK
QD
EN
DT Data
1
0
Q
D
Q
CK
RD PORTB
RB4 pin
PORTB
RD LATB
RBPU(2)
P
Weak
Pull-up
Q1
From other
QD
EN
Set RBIF
RB7:RB4 pins
RD PORTB
Q3
To A/D Converter
EUSART Enabled
TTL
Input
Buffer
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 (INTCON2<7>).
DT TRIS
Analog Input Mode
RX/DT Input
Analog Input
Mode
Schmitt
Trigger
VDD



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