PIC18F4220-I/P Microchip Technology Inc., PIC18F4220-I/P Datasheet - Page 224
PIC18F4220-I/P
Manufacturer Part Number
PIC18F4220-I/P
Description
Microcontroller; 4 KB Flash; 512 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4220-IP.pdf
(388 pages)
Specifications of PIC18F4220-I/P
A/d Inputs
13-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
4K Bytes
Ram Size
512 Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
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PIC18F2220/2320/4220/4320
FIGURE 20-1:
DS39599C-page 222
Comparators RESET
CM<2:0> = 000
Two Independent Comparators
CM<2:0> = 010
Two Common Reference Comparators
CM<2:0> = 100
One Independent Comparator with Output
CM<2:0> = 001
Note 1: RA4 must be configured as an output pin in TRISA<4> when used to output C1OUT. RA5 ignores TRISA<5> when
A = Analog Input, port reads zeros always, overrides TRISA bit
D = Digital Input.
CIS (CMCON<3>) is the Comparator Input Switch; CVROE (CVRCON<6>) is the Voltage Reference Output Switch.
RA0/AN0
RA3/AN3/
V
RA1/AN1
RA2/AN2/
V
RA4/T0CKI/C1OUT
RA0/AN0
RA3/AN3/
V
RA1/AN1
RA2/AN2/
V
RA0/AN0
RA3/AN3/
V
RA1/AN1
RA2/AN2/
V
RA0/AN0
RA3/AN3/
V
RA1/AN1
RA2/AN2/
V
REF
REF
REF
REF
REF
REF
REF
REF
+
-/CV
+
-/CV
+
-/CV
2: Mode 110 is exception. Comparator input pins obey TRISA bits.
+
-/CV
REF
REF
used as an output for C2OUT.
REF
REF
A
A
A
A
A
A
A
D
A
A
D
D
D
D
D
D
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
(1)
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
COMPARATOR I/O OPERATING MODES
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
C1
C2
C1
C2
C1
C2
C1
C2
C1OUT
C2OUT
C1OUT
C2OUT
C1OUT
Off (Read as ‘0’)
Off (Read as ‘0’)
Off (Read as ‘0’)
(2)
.
Two Common Reference Comparators with Outputs
CM<2:0> = 101
Two Independent Comparators with Outputs
CM<2:0> = 011
Comparators Off (POR Default Value)
CM<2:0> = 111
Four Inputs Multiplexed to Two Comparators
CM<2:0> = 110
RA0/AN0
RA3/AN3/
V
RA1/AN1
RA2/AN2/
V
RA0/AN0
RA3/AN3/
V
RA4/T0CKI/C1OUT
RA5/AN4/SS/LVDIN/C2OUT
RA1/AN1
RA2/AN2/
V
RA0/AN0
RA3/AN3/
V
RA4/T0CKI/C1OUT
RA1/AN1
RA2/AN2/
V
RA5/AN4/SS/LVDIN/C2OUT
RA0/AN0
RA3/AN3/
V
RA1/AN1
RA2/AN2/
V
REF
REF
REF
REF
REF
REF
REF
REF
+
-/CV
+
+
-/CV
-/CV
+
-/CV
REF
REF
REF
REF
A
A
A
A
D
D
D
D
A
A
A
A
CVROE = 1
CVROE = 0
V
V
V
V
V
V
V
V
CIS = 0
CIS = 1
CIS = 0
CIS = 1
(1)
(1)
IN
IN
IN
IN
IN
IN
IN
IN
A
A
A
D
-
+
-
+
-
+
-
+
2003 Microchip Technology Inc.
C1
C2
C1
C2
(1)
(1)
V
V
V
V
IN
IN
IN
IN
V
V
V
V
-
+
-
+
IN
IN
IN
IN
CV
-
+
-
+
REF
C1
C2
C1OUT
C2OUT
Off (Read as ‘0’)
Off (Read as ‘0’)
C1
C2
From V
C1OUT
C2OUT
REF
C1OUT
C2OUT
Module
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