PIC18F4220-I/P Microchip Technology Inc., PIC18F4220-I/P Datasheet - Page 231
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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FIGURE 21-2:
TABLE 21-1:
2003 Microchip Technology Inc.
CVRCON CVREN CVROE
CMCON
TRISA
Legend: x = unknown, u = unchanged, - = unimplemented, read as ‘0’.
Note 1:
Name
Shaded cells are not used with the comparator voltage reference.
These pins are enabled based on oscillator configuration (see Configuration Register 1H).
C2OUT
Note 1: R is dependent upon the voltage reference configuration bits (CVRCON<3:0> and CVRCON<5>).
RA7
Bit 7
(1)
REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
CV
Module
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
C1OUT
RA6
REF
Bit 6
(1)
Impedance
Reference
Voltage
Output
C2INV
CVRR
Bit 5
RA5
R
(1)
C1INV
Bit 4
RA4
RA2
—
PIC18F2220/2320/4220/4320
CVR3
Bit 3
RA3
CIS
CVR2
Bit 2
CM2
RA2
+
–
CVR1
Bit 1
CM1
RA1
CVR0
Bit 0
CM0
RA0
CV
REF
000- 0000 000- 0000
0000 0111 0000 0111
1111 1111 1111 1111
Output
Value on
POR
DS39599C-page 229
Value on
all other
Resets
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