PIC18F45K22-I/P Microchip Technology Inc., PIC18F45K22-I/P Datasheet - Page 338

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PIC18F45K22-I/P

Manufacturer Part Number
PIC18F45K22-I/P
Description
40 PDIP .600in TUBE, 32KB, Flash, 1536bytes-RAM, 8-bit Family, nanoWatt XLP
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of PIC18F45K22-I/P

A/d Inputs
28-Channel, 10-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
256 Bytes
Input Output
35
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
32K Bytes
Ram Size
1.5K Bytes
Speed
64 MHz
Temperature Range
–40 to 125 °C
Timers
3-8-bit, 4-16-bit
Voltage, Range
1.8-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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PIC18(L)F2X/4XK22
REGISTER 21-1:
TABLE 21-1:
DS41412D-page 338
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7
bit 6
bit 5-4
bit 3-2
bit 1-0
VREFCON0
Legend:
Note 1: Fixed Voltage Reference output cannot exceed V
FVREN
Name
R/W-0
— = unimplemented locations, read as ‘0’.
FVREN: Fixed Voltage Reference Enable bit
0 = Fixed Voltage Reference is disabled
1 = Fixed Voltage Reference is enabled
FVRST: Fixed Voltage Reference Ready Flag bit
0 = Fixed Voltage Reference output is not ready or not enabled
1 = Fixed Voltage Reference output is ready for use
FVRS<1:0>: Fixed Voltage Reference Selection bits
00 = Fixed Voltage Reference Peripheral output is off
01 = Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = Fixed Voltage Reference Peripheral output is 4x (4.096V)
Reserved: Read as ‘0’. Maintain these bits clear.
Unimplemented: Read as ‘0’.
FVREN
SUMMARY OF REGISTERS ASSOCIATED WITH FIXED VOLTAGE REFERENCE
Bit 7
FVRST
R/W-0
VREFCON0: FIXED VOLTAGE REFERENCE CONTROL REGISTER
FVRST
Bit 6
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
R/W-0
FVRS<1:0>
Bit 5
FVRS<1:0>
R/W-1
Preliminary
Shaded bits are not used by the FVR module.
Bit 4
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
DD
Bit 3
U-0
.
Bit 2
U-0
(1)
(1)
Bit 1
 2010 Microchip Technology Inc.
U-0
Bit 0
Register
on Page
U-0
338
bit 0

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