PIC16F887I-PT Datasheet, PDF (62/338 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16F882/883/884/886/887
3.7.1
RE0/AN5⁽¹⁾
This pin is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
Note 1: RE0/AN5 is available on PIC16F884/887
only.
3.7.2
RE1/AN6⁽¹⁾
This pin is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
Note 1: RE1/AN6 is available on PIC16F884/887
only.
3.7.3
RE2/AN7⁽¹⁾
This pin is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
Note 1: RE2/AN7 is available on PIC16F884/887
only.
FIGURE 3-21:
Data Bus
DQ
WR
PORTE
CK _Q
WR
TRISE
DQ
CK _Q
RD
TRISE
BLOCK DIAGRAM OF
RE<2:0>
VDD
I/O Pin
VSS
Analog⁽¹⁾
Input Mode
RD
PORTE
To A/D Converter
Note 1: ANSEL determines Analog Input mode.
3.7.4 RE3/MCLR/VPP
Figure 3-22 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose input
• as Master Clear Reset with weak pull-up
FIGURE 3-22:
BLOCK DIAGRAM OF RE3
VDD
MCLRE
Weak
Data Bus
RD
TRISE
RD
PORTE
Reset
VSS
MCLRE
Input
Pin
MCLRE
VSS
DS41291G-page 62
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