
PIC16F7X7
DS30498C-page 54
2004 Microchip Technology Inc.
FIGURE 5-7:
BLOCK DIAGRAM OF OSC1/CLKI/RA7 PIN
Data
Bus
Q
D
Q
CK
P
N
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD TRISA
RD PORTA
VSS
VDD
OSC1/CLKI
Q
D
Q
CK
D
Q
EN
Oscillator
Circuit
1
0
RA7 pin
(FOSC = 10x)
+ EMUL
NEMUL
(FOSC = 10x)
P
N
VSS
VDD
(FOSC = 10x)
+ EMUL
(FOSC = 10x)
VDD
(FOSC = 011)
TTL
Buffer