PIC18F6525/6621/8525/8621
FIGURE 10-14:
RF6:RF3 AND RF0 PINS
BLOCK DIAGRAM
FIGURE 10-15:
RF7 PIN BLOCK
DIAGRAM
RD LATF
RD LATF
Data
Bus
Data
Bus
D
Q
D
Q
WR LATF or
WR PORTF
I/O pin
WR LATF
or
WR PORTF
VDD
CK
Data Latch
CK
Data Latch
Q
P
D
Q
N
I/O pin
Schmitt
Trigger
Input
D
Q
WR TRISF
CK
TRIS Latch
Buffer
WR TRISF
RD TRISF
VSS
Analog
CK
TRIS Latch
Q
TTL
Input
Buffer
Input
Mode
RD TRISF
ST
Input
Q
D
Buffer
Q
D
EN
EN
RD PORTF
SS Input
EN
RD PORTF
To A/D Converter or Comparator Input
Note:
I/O pins have diode protection to VDD and VSS.
Note 1: I/O pins have diode protection to VDD and VSS.
DS39612B-page 118
2005 Microchip Technology Inc.