PIC16F684-I/SLG Microchip, PIC16F684-I/SLG Datasheet - Page 37

• Manufacturer Part Number: PIC16F684-I/SLG
• Description: pic, flash, Microcontrollers, Microprocessors, Semiconductors and Actives, ic, mcu
• Manufacturer: Microchip

FIGURE 4-1:
 2004 Microchip Technology Inc.
Data Bus
WPUDA
WPUDA
PORTA
PORTA
TRISA
Note 1:
TRISA
WR
IOCA
IOCA
Interrupt-on-
RD
WR
WR
WR
RD
RD
RD
BLOCK DIAGRAM OF RAO
Change
D
D
D
D
Comparator mode and ANSEL determines Analog Input mode.
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
To A/D Converter
To Comparator
Preliminary
RD PORTA
Input Mode
Analog
Q
Q
(1)
Input Mode
Analog
EN
EN
D
D
0
(1)
RAPU
1
Q3
+
-
ULPWUE
V
Weak
DD
I
ULP
V
SS
V
PIC16F684
T
V
V
DD
SS
DS41202C-page 35
I/O PIN