PIC16F721-ESS View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16F721-ESS Datasheet PDF : 254 Pages
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PIC16(L)F720/721
FIGURE 6-4:
BLOCK DIAGRAM OF RA3
VDD
MCLRE
Weak
Data Bus
Reset
RD
VSS
TRISA
RD
PORTA
DQ
WR
IOCA
CK Q
RD
IOCA
Interrupt-on-
Change
MCLRE
MCLRE
QD
EN
QD
EN
RD PORTA
Input
Pin
VSS
Q3
FIGURE 6-5:
Data Bus
DQ
WR
WPUA
CK Q
RD
WPUA
BLOCK DIAGRAM OF RA4
Analog(2)
Input mode CLK
modes
VDD
Weak
RABPU
DQ
WR
PORTA
CK Q
WR
TRISA
DQ
CK Q
RD
TRISA
RD
PORTA
DQ
WR
IOCA
CK Q
RD
IOCA
CLKOUT
Enable
FOSC/4 1
0
CLKOUT
Enable
INTOSC/
RC/EC(1)
CLKOUT
Enable
Analog
Input mode
QD
EN
QD
Interrupt-on-
Change
To T1G
To A/D Converter
EN
RD PORTA
VDD
I/O Pin
VSS
Q3
Note 1: With CLKOUT option.
2: ANSEL determines Analog Input mode.
DS41430D-page 52
2010-2013 Microchip Technology Inc.
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