PIC16CE625-04E/SS Microchip Technology, PIC16CE625-04E/SS Datasheet - Page 42

• Manufacturer Part Number: PIC16CE625-04E/SS
• Description: IC MCU OTP 2KX14 EE COMP 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16CE625-04E/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 13
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SSOP
• For Use With: 309-1016 - ADAPTER 20-SSOP TO 18-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Connectivity: -

PIC16CE62X
8.1
There are eight modes of operation for the
comparators. The CMCON register is used to select
the mode. Figure 8-1 shows the eight possible modes.
The TRISA register controls the data direction of the
comparator pins for each mode. If the comparator
FIGURE 8-1:
DS40182C-page 42
A = Analog Input, Port Reads Zeros Always
D = Digital Input
CIS = CMCON<3>, Comparator Input Switch
RA3/AN3
RA1/AN1
RA2/AN2
RA3/AN3
RA1/AN1
RA2/AN2
RA3/AN3
RA2/AN2
RA0/AN0
RA0/AN0
RA0/AN0
RA1/AN1
RA3/AN3
RA2/AN2
Comparators Reset
Two Independent Comparators
One Independent Comparator
RA0/AN0
RA1/AN1
Two Common Reference Comparators
Comparator Configuration
A
A
A
A
D
D
A
A
A
A
A
D
A
A
A
A
COMPARATOR I/O OPERATING MODES
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
C1
C2
C1
C2
C1
C2
C1
C2
CM<2:0> = 100
CM<2:0> = 011
CM<2:0> = 000
CM<2:0> = 101
C1OUT
C2OUT
C1OUT
C2OUT
(Read as ’0’)
(Read as ’0’)
(Read as ’0’)
C2OUT
Off
Off
Off
RA3/AN3
RA2/AN2
Comparators Off
Four Inputs Multiplexed to
Two Comparators
Two Common Reference Comparators with Outputs
Three Inputs Multiplexed to
Two Comparators
RA0/AN0
RA1/AN1
RA3/AN3
RA1/AN1
RA2/AN2
RA3/AN3
RA1/AN1
RA2/AN2
RA0/AN0
RA0/AN0
RA3/AN3
RA1/AN1
RA2/AN2
RA0/AN0
mode is changed, the comparator output level may not
be valid for the specified mode change delay shown
in Table 13-1.
Note:
RA4 Open Drain
D
D
D
D
A
A
A
A
A
A
A
A
A
A
A
D
Comparator interrupts should be disabled
during a comparator mode change, other-
wise a false interrupt may occur.
V
V
V
V
CIS=0
CIS=1
CIS=0
CIS=1
CIS=0
CIS=1
IN
IN
IN
IN
V
V
V
V
V
V
V
V
-
+
-
+
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
V
V
V
V
C1
C2
IN
IN
IN
IN
1999 Microchip Technology Inc.
C1
C2
C2
C1
-
+
-
+
-
+
-
+
From V
C2
CM<2:0> = 001
C1
CM<2:0> = 010
CM<2:0> = 111
CM<2:0> = 110
(Read as ’0’)
(Read as ’0’)
REF
C1OUT
C2OUT
C1OUT
C2OUT
Off
Off
Module
C1OUT
C2OUT