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18F8680 Datasheet(PDF) 136 Page - Microchip Technology

Part # 18F8680
Description  64/68/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with ECAN Module
PDF  496 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

18F8680 Datasheet(HTML) 136 Page - Microchip Technology

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PIC18F6585/8585/6680/8680
DS30491C-page 134
 2004 Microchip Technology Inc.
FIGURE 10-10:
PORTD BLOCK DIAGRAM IN SYSTEM BUS MODE (PIC18F8X8X ONLY)
Instruction Register
Bus Enable
Data/TRIS Out
Drive Bus
System Bus
Control
Data Bus
WR LATD
WR TRISD
RD PORTD
Data Latch
TRIS Latch
RD TRISD
TTL
Input
Buffer
I/O pin(1)
Q
D
CK
Q
D
CK
EN
QD
EN
RD LATD
or PORTD
0
1
Port
Data
Instruction Read
Note 1: I/O pins have protection diodes to VDD and VSS.



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