 English |
|
|
|
|
|
|
|
| PIC16F87-E Datasheet, PDF (58/228 Pages) Microchip Technology – 18/20/28-Pin Enhan lashMicrocontrollers with nanoWatt Technology | |||
| |||
| ◁ |
PIC16F87/88
FIGURE 5-7:
BLOCK DIAGRAM OF RA7/OSC1/CLKI PIN
From OSC2 Oscillator
Circuit
Data
Bus
WR
PORTA
WR
TRISA
D
Q
CK Q
Data Latch
D
Q
CK Q
TRIS Latch
(FOSC = 011)
VDD
P
N
FOSC = 10x
VSS
RD TRISA
Q
D
Schmitt Trigger
Input Buffer
RD PORTA
EN
FOSC = 10x
Note 1: I/O pins have protection diodes to VDD and VSS.
VDD
RA7/OSC1/CLKI pin(1)
VSS
DS30487C-page 56
 2005 Microchip Technology Inc.
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese