PIC18F4685-E/PT Microchip Technology, PIC18F4685-E/PT Datasheet - Page 260
![96KB, Flash, 3328bytes-RAM, 36I/O, 8-bit Family,nanoWatt,ECAN 44 TQFP 10x10x1mm](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4685-E/PT
Manufacturer Part Number
PIC18F4685-E/PT
Description
96KB, Flash, 3328bytes-RAM, 36I/O, 8-bit Family,nanoWatt,ECAN 44 TQFP 10x10x1mm
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PCM18XT0.pdf
(484 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F2682-ISP.pdf
(6 pages)
4.PIC18F2682-ISP.pdf
(4 pages)
Specifications of PIC18F4685-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
96KB (48K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4680 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4685-E/PT
Manufacturer:
MICROCHIP
Quantity:
2 000
Company:
Part Number:
PIC18F4685-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F4685-E/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PCM18XT0 PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F2682-ISP PDF datasheet #3
- PIC18F2682-ISP PDF datasheet #4
- Current page: 260 of 484
- Download datasheet (9Mb)
PIC18F2682/2685/4682/4685
20.1
There are eight modes of operation for the compara-
tors, shown in Figure 20-1. Bits CM2:CM0 of the
CMCON register are used to select these modes. The
TRISA register controls the data direction of the com-
parator pins for each mode. If the Comparator mode is
FIGURE 20-1:
DS39761C-page 260
Comparators Reset (POR Default Value)
CM2:CM0 = 000
Two Independent Comparators
CM2:CM0 = 010
Two Common Reference Comparators
CM2:CM0 = 100
One Independent Comparator with Output
CM2:CM0 = 001
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
A = Analog Input, port reads zeros always
* Setting the TRISA<5:4> bits will disable the comparator outputs by configuring the pins as inputs.
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RE1/WR/AN6/C1OUT*
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
Comparator Configuration
A
A
A
D
A
A
A
A
A
A
A
A
COMPARATOR I/O OPERATING MODES
A
A
D
D
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
IN
IN
IN
IN
-
+
-
+
-
+
-
+
-
+
-
+
C1
C2
C1
C2
C1
C2
C1
C2
C1OUT
C2OUT
D = Digital Input
Off
Off
(Read as ‘0’)
C1OUT
C2OUT
(Read as ‘0’)
C1OUT
Off
(Read as ‘0’)
Two Common Reference Comparators with Outputs
CM2:CM0 = 101
Two Independent Comparators with Outputs
CM2:CM0 = 011
Comparators Off
CM2:CM0 = 111
Four Inputs Multiplexed to Two Comparators
CM2:CM0 = 110
RD1/PSP1/
C1IN-
RD0/PSP0/
C1IN+
RD3/PSP3/
C2IN-
RD2/PSP2/
C2IN+
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RE1/WR/AN6/C1OUT*
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
RE2/CS/AN7/C2OUT*
RD1/PSP1/C1IN-
RD0/PSP0/C1IN+
RE1/WR/AN6/C1OUT*
RD3/PSP3/C2IN-
RD2/PSP2/C2IN+
RE2/CS/AN7/C2OUT*
changed, the comparator output level may not be valid
for the specified mode change delay shown in
Section 27.0 “Electrical Characteristics”.
Note:
CIS (CMCON<3>) is the Comparator Input Switch
A
A
A
A
Comparator interrupts should be disabled
during a Comparator mode change;
otherwise, a false interrupt may occur.
CIS = 0
CIS = 1
CIS = 0
CIS = 1
A
A
A
D
A
A
A
A
D
D
D
D
© 2009 Microchip Technology Inc.
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
-
+
V
V
V
V
-
+
-
+
IN
IN
IN
IN
CV
-
+
-
+
C1
C2
C1
C2
C1
C2
REF
C1
C2
From V
C1OUT
C2OUT
C1OUT
C2OUT
Off
(Read as ‘0’)
Off
(Read as ‘0’)
REF
C1OUT
C2OUT
Module
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