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| PIC16F627A_05 Datasheet, PDF (36/180 Pages) Microchip Technology – Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology | |||
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PIC16F627A/628A/648A
FIGURE 5-7:
BLOCK DIAGRAM OF RA7/OSC1/CLKIN PIN
To Clock Circuits
VDD
Data Bus
D
Q
WR PORTA
WR TRISA
CK Q
Data Latch
D
Q
CK Q
TRIS Latch
RA7/OSC1/CLKIN Pin
VSS
RD TRISA
FOSC = 100, 101(1)
RD PORTA
Q
D
EN
Schmitt Trigger
Input Buffer
Note 1: INTOSC with CLKOUT and INTOSC with I/O.
DS40044D-page 34
© 2005 Microchip Technology Inc.
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