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Part Name
Description
16F876A View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
16F876A
28/40/44-Pin Enhanced Flash Microcontrollers
Microchip Technology
16F876A Datasheet PDF : 234 Pages
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PIC16F87XA
FIGURE 4-2:
BLOCK DIAGRAM OF RA4/T0CKI PIN
CMCON<2:0> =
x01
or
011
C1OUT
Data Bus
Data Latch
DQ
1
WR PORTA
CK Q
0
TRIS Latch
DQ
WR TRISA
CK Q
N
I/O pin
(1)
V
SS
Schmitt
Trigger
Input
Buffer
RD TRISA
QD
RD PORTA
TMR0 Clock Input
EN
EN
Note 1:
I/O pin has protection diodes to V
SS
only.
FIGURE 4-3:
BLOCK DIAGRAM OF RA5 PIN
CMCON<2:0> =
011
or
101
C2OUT
Data Bus
Data Latch
DQ
1
WR PORTA
CK Q
0
TRIS Latch
DQ
WR TRISA
CK Q
RD TRISA
RD PORTA
A/D Converter or SS Input
V
DD
P
N
Analog
I
IP
Mode
V
SS
I/O pin
(1)
TTL
Input
Buffer
QD
EN
EN
Note 1:
I/O pin has protection diodes to V
DD
and V
SS
.
DS39582B-page 42
2003 Microchip Technology Inc.
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