Datasheet

PIC16HV540
DS40197B-page 20 Preliminary  2000 Microchip Technology Inc.
FIGURE 5-1: BLOCK DIAGRAM OF PORTA<0:3> PINS
FIGURE 5-2: BLOCK DIAGRAM OF PORTB<0:3> PINS
DATA
BUS
QD
Q
CK
QD
Q
CK
P
N
WR
PORTA
Data
TRIS
RD PORTA
V
SS
VIO
RA0-RA3
pins
W
REG
Latch
Latch
Reset
TRIS
PORTA
VIO
VSS
DATA
BUS
QD
Q
CK
QD
Q
CK
P
N
WR
PORTB
Data
TRIS
RD PORTB
V
SS
VDD
RB0-RB3
pins
W
REG
Latch
Latch
TRIS
PORTB
VDD
Step-up
Circuit
VDD
DQ
CK
Q
Step-down
Circuit
RD PORTB
“SLEEP”
M
U
X
WAKE-UP ON
PIN CHANGE
V
SS