PIC16F887-I/PT Microchip Technology Inc., PIC16F887-I/PT Datasheet - Page 86

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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
FIGURE 8-2:
FIGURE 8-3:
DS41291D-page 84
FixedRef
CV
C1R
FixedRef
CV
C2R
REF
REF
SEL
SEL
C12IN0-
C12IN1-
C2IN+
C12IN0-
C12IN1-
C12IN2-
C12IN3-
C2IN2-
C2IN3-
C1IN+
C2CH<1:0>
C1CH<1:0>
0
1
0
1
MUX
Note 1:
MUX
Note 1:
COMPARATOR C1 SIMPLIFIED BLOCK DIAGRAM
COMPARATOR C2 SIMPLIFIED BLOCK DIAGRAM
C1V
C1R
2:
3:
C2V
C2R
2:
3:
0
1
2
3
0
1
2
3
0
1
REF
2
MUX
0
1
REF
MUX
2
MUX
When C1ON = 0, the C1 comparator will produce a ‘0’ output to the XOR Gate.
Q1 and Q3 are phases of the four-phase system clock (F
Q1 is held high during Sleep mode.
MUX
When C2ON = 0, the C2 comparator will produce a ‘0’ output to the XOR Gate.
Q1 and Q3 are phases of the four-phase system clock (F
Q1 is held high during Sleep mode.
C2V
C2V
C1V
C1V
IN
IN
+
IN
IN
-
-
+
C2
C2ON
+
-
C1
C1ON
C2POL
(1)
Preliminary
C1POL
(1)
From Timer1
Q3*RD_CM2CON0
Clock
Q3*RD_CM1CON0
Q1
Q1
D
C2OUT
D
EN
Reset
D
EN
C1OUT
Reset
Q
Q
C2SYNC
Q
D
EN
C2POL
D
EN
CL
OSC
0
1
C1POL
OSC
MUX
CL
Q
Q
).
).
© 2007 Microchip Technology Inc.
To Timer1 Gate, SR Latch
and other peripherals
RD_CM2CON0
RD_CM1CON0
C1OUT (to SR Latch)
To PWM Logic
SYNCC2OUT
Data Bus
Set C2IF
Data Bus
Set C1IF
To
To

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