PIC16F887-I/PT Microchip Technology Inc., PIC16F887-I/PT Datasheet - Page 62

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PIC16F887-I/PT

Manufacturer Part Number
PIC16F887-I/PT
Description
MCU, 8-Bit, 8KW Flash, 368 RAM, 36 I/O, TQFP-44
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of PIC16F887-I/PT

A/d Inputs
14-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Frequency
20 MHz
Input Output
35
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin TFQP
Programmable Memory
14K Bytes
Ram Size
368 Bytes
Resistance, Drain To Source On
Bytes
Serial Interface
MSSP or EUSART
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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PIC16F882/883/884/886/887
3.7.1
This pin is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
3.7.2
This pin is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
3.7.3
This pin is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
FIGURE 3-21:
TABLE 3-5:
DS41291D-page 60
ANSEL
PORTE
TRISE
Legend:
Data Bus
PORTE
PORTE
TRISE
TRISE
WR
WR
RD
RD
Note 1: RE0/AN5 is available on PIC16F884/887
Note 1: RE1/AN6 is available on PIC16F884/887
Note 1: RE2/AN7 is available on PIC16F884/887
Note 1:
Name
D
D
To A/D Converter
CK
CK
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTE
RE0/AN5
RE2/AN7
RE1/AN6
only.
only.
only.
ANSEL determines Analog Input mode.
ANS7
Bit 7
Q
Q
Q
Q
SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
ANS6
(1)
(1)
Bit 6
BLOCK DIAGRAM OF
RE<2:0>
(1)
Input Mode
Analog
ANS5
Bit 5
(1)
ANS4
Bit 4
V
V
DD
SS
TRISE3
ANS3
I/O Pin
Bit 3
RE3
Preliminary
TRISE2
ANS2
Bit 2
RE2
3.7.4
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:
Data Bus
PORTE
TRISE1
TRISE
RD
RD
ANS1
Bit 1
RE1
TRISE0
RE3/MCLR/V
ANS0
Bit 0
RE0
Reset
MCLRE
BLOCK DIAGRAM OF RE3
1111 1111
---- xxxx
---- 1111
V
POR, BOR
© 2007 Microchip Technology Inc.
Value on
SS
PP
MCLRE
MCLRE
all other Resets
1111 1111
---- uuuu
---- 1111
V
DD
Value on
Weak
V
SS
Input
Pin

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