PIC18F2331_07 Datasheet, PDF (114/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 10-6:
BLOCK DIAGRAM OF RA5
Data
Bus
WR LATA
or PORTA
WR TRISA
RD LATA
D
Q
CK Q
Data Latch
D
Q
CK Q
TRIS Latch
RD TRISA
Q
VDD
P
N
VSS
Analog
Input
Mode or
LVDIN
Enabled
D
I/O Pin
TTL
Input
Buffer
EN
RD PORTA
To A/D Converter/LVD Module Input
FIGURE 10-8:
BLOCK DIAGRAM OF RA7
Data
Bus
INTOSC Enable
RD LATA
To
Oscillator
WR LATA
or PORTA
D
Q
CK Q
Data Latch
DQ
VDD
P
N
I/O Pin
CK Q
TRIS Latch
RD TRISA
VSS
INTOSC
w/RA7 Enable
TTL
Input
Buffer
RD PORTA
QD
EN
FIGURE 10-7:
BLOCK DIAGRAM OF RA6
Data
Bus
EC/ECIO or RC/RCIO
Enable
RD LATA
To
Oscillator
WR LATA
or PORTA
DQ
CK Q
Data Latch
D
Q
CK Q
TRIS Latch
RD TRISA
VDD
P
N
I/O Pin
VSS
EC/ECIO or
RC/RCIO Enable
TTL
Input
Buffer
RD PORTA
QD
EN
DS39616C-page 112
Preliminary
© 2007 Microchip Technology Inc.