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PIC16F946-E/MLQTP Datasheet(PDF) 115 Page - Microchip Technology

Part # PIC16F946-E/MLQTP
Description  28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  330 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F946-E/MLQTP Datasheet(HTML) 115 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS41250F-page 113
PIC16F913/914/916/917/946
FIGURE 8-5:
COMPARATOR I/O OPERATING MODES
Legend: A = Analog Input, ports always reads ‘0’
CIS = Comparator Input Switch (CMCON0<3>)
I/O = Normal port I/O
D = Comparator Digital Output
C1
C1IN-
VIN-
VIN+
C1IN+
Off (Read as ‘0’)
Comparators Reset (POR Default Value)
A
A
CM<2:0> = 000
C2
C2IN-
VIN-
VIN+
C2IN+
Off (Read as ‘0’)
A
A
C1
C1IN-
VIN-
VIN+
C1IN+
C1OUT
Two Independent Comparators
A
A
CM<2:0> = 100
C2
C2IN-
VIN-
VIN+
C2IN+
C2OUT
A
A
C1
C1IN-
VIN-
VIN+
C1IN+
C1OUT
Two Common Reference Comparators
A
I/O
CM<2:0> = 011
C2
C2IN-
VIN-
VIN+
C2IN+
C2OUT
A
A
C1
C1IN-
VIN-
VIN+
C1IN+
Off (Read as ‘0’)
One Independent Comparator with Reference Option
I/O
I/O
CM<2:0> = 101
C2
C2IN-
VIN-
VIN+
C2OUT
A
C1
C1IN-
VIN-
VIN+
C1IN+
Off (Read as ‘0’)
Comparators Off (Lowest Power)
I/O
I/O
CM<2:0> = 111
C2
C2IN-
VIN-
VIN+
C2IN+
Off (Read as ‘0’)
I/O
I/O
C1
C1IN-
VIN-
VIN+
C1IN+
C1OUT
Four Inputs Multiplexed to Two Comparators
A
A
CM<2:0> = 010
C2
C2IN-
VIN-
VIN+
C2IN+
C2OUT
A
A
From
CVREF Module
CIS = 0
CIS = 1
CIS = 0
CIS = 1
C1
C1IN-
VIN-
VIN+
C1OUT(pin)
C1OUT
Two Common Reference Comparators with Outputs
A
D
CM<2:0> = 110
C2
C2IN-
VIN-
VIN+
C2IN+
C2OUT
A
A
C2OUT(pin)
C1
C1IN-
VIN-
VIN+
C1IN+
C1OUT
Three Inputs Multiplexed to Two Comparators
A
A
CM<2:0> = 001
C2
C2IN-
VIN-
VIN+
C2IN+
C2OUT
A
A
CIS = 0
CIS = 1
D
C2IN+
A
CIS = 0
CIS = 1
C2OUT(pin)
Internal
Fixed Voltage Ref



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