PIC16F887-I/PT Microchip Technology Inc., PIC16F887-I/PT Datasheet - Page 45
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
1.PIC16F887-IPT.pdf
(288 pages)
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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Part Number:
PIC16F887-I/PT
Manufacturer:
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3.2.3.2
Figure 3-2 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• a negative analog input to Comparator C1 or C2
FIGURE 3-2:
© 2007 Microchip Technology Inc.
Data Bus
PORTA
PORTA
TRISA
TRISA
WR
WR
RD
RD
Note 1:
D
D
To Comparator
To A/D Converter
CK
CK
ANSEL determines Analog Input mode.
RA1/AN1/C12IN1-
Q
Q
Q
Q
BLOCK DIAGRAM OF RA1
Input Mode
Analog
(1)
V
V
DD
SS
PIC16F882/883/884/886/887
I/O Pin
Preliminary
3.2.3.3
Figure 3-3 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• a negative voltage reference input for the ADC
• a comparator voltage reference output
• a positive analog input to Comparator C2
FIGURE 3-3:
Data Bus
PORTA
PORTA
TRISA
TRISA
and CV
WR
WR
RD
RD
Note 1:
REF
D
D
To Comparator (positive input)
To Comparator (V
To A/D Converter (V
To A/D Converter (analog channel)
CK
CK
ANSEL determines Analog Input mode.
RA2/AN2/V
Q
Q
Q
Q
BLOCK DIAGRAM OF RA2
VROE
REF
REF
REF
-)
-)
Input Mode
-/CV
Analog
CV
REF
REF
(1)
DS41291D-page 43
/C2IN+
V
V
DD
SS
I/O Pin
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