PIC18F4220-I/P Microchip Technology Inc., PIC18F4220-I/P Datasheet - Page 248
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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Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4220-I/PT
Manufacturer:
SST
Quantity:
1 150
Company:
Part Number:
PIC18F4220-I/PT
Manufacturer:
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PIC18F2220/2320/4220/4320
REGISTER 23-14: WDTCON REGISTER
TABLE 23-2:
DS39599C-page 246
CONFIG2H
RCON
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
Name
bit 7-1
bit 0
SUMMARY OF WATCHDOG TIMER REGISTERS
IPEN
Bit 7
—
—
Unimplemented: Read as ‘0’
SWDTEN: Software Controlled Watchdog Timer Enable bit
1 = Watchdog Timer is on
0 = Watchdog Timer is off
bit 7
Legend:
R = Readable bit
U = Unimplemented bit, read as ‘0’
Note 1: This bit has no effect if the configuration bit, WDTEN (CONFIG2H<0>), is enabled.
U-0
—
Bit 6
—
—
—
U-0
—
Bit 5
—
—
—
U-0
—
WDTPS3
Bit 4
RI
—
U-0
—
WDTPS2
Bit 3
TO
—
W = Writable bit
- n = Value at POR
U-0
—
WDTPS2
Bit 2
PD
—
U-0
—
2003 Microchip Technology Inc.
WDTPS0
Bit 1
POR
U-0
—
—
SWDTEN
SWDTEN
WDTEN
R/W-0
Bit 0
BOR
bit 0
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