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PIC18F4539-E/MLSQTP датащи(PDF) 89 Page - Microchip Technology

номер детали PIC18F4539-E/MLSQTP
подробное описание детали  Enhanced FLASH Microcontrollers with Single Phase Induction Motor Control Kernel
PDF  322 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4539-E/MLSQTP датащи(HTML) 89 Page - Microchip Technology

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 2002 Microchip Technology Inc.
Preliminary
DS30485A-page 87
PIC18FXX39
FIGURE 9-5:
BLOCK DIAGRAM OF RB2:RB0 PINS
FIGURE 9-6:
BLOCK DIAGRAM OF RB3 PIN
Data Latch
RBPU(2)
P
VDD
Q
D
CK
Q
D
CK
QD
EN
Data Bus
WR Port
WR TRIS
RD TRIS
RD Port
Weak
Pull-up
RB0/INT
I/O pin(1)
TTL
Input
Buffer
Schmitt Trigger
Buffer
TRIS Latch
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 (OPTION_REG<7>).
Data Latch
P
VDD
Q
D
CK
Q
D
EN
Data Bus
WR LATB or
WR TRISB
RD TRISB
Weak
Pull-up
TTL
Input
Buffer
TRIS Latch
RD LATB
WR PORTB
RBPU(2)
CK
D
RD PORTB
P
N
VDD
VSS
I/O pin(1)
Q
‘1’
Note 1:
I/O pin has diode protection to VDD and VSS.
2:
To enable weak pull-ups, set the appropriate DDR bit(s) and clear the RBPU bit (INTCON2<7>).



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