Datasheet

 2004 Microchip Technology Inc. DS30498C-page 53
PIC16F7X7
FIGURE 5-6: BLOCK DIAGRAM OF OSC2/CLKO/RA6 PIN
Data
Bus
QD
Q
CK
P
N
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD TRISA
RD PORTA
V
SS
VDD
OSC2/CLKO
Q
D
Q
CK
DQ
EN
TTL
Buffer
Oscillator
Circuit
1
0
RA6 pin
From OSC1
(F
OSC = 1x1)
EMUL
(FOSC = 1x0,011)
P
N
V SS
VDD
EMUL + FOSC = 00x, 010
(F
OSC = 1x0,011)
1
0
CLKO (FOSC/4)
(FOSC = 1x1)
VDD
Note 1: CLKO signal is 1/4 of the FOSC frequency.
(FOSC = 1x1)
EMUL + F
OSC = 00x,010
EMUL