PIC18F4431-I/P Microchip Technology Inc., PIC18F4431-I/P Datasheet - Page 30
PIC18F4431-I/P
Manufacturer Part Number
PIC18F4431-I/P
Description
Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4431-IP.pdf
(396 pages)
Specifications of PIC18F4431-I/P
A/d Inputs
9-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
16K Bytes
Ram Size
768 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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4431-I/P
Manufacturer:
ABB
Quantity:
240
Company:
Part Number:
PIC18F4431-I/P
Manufacturer:
MICROCHIP
Quantity:
769
Part Number:
PIC18F4431-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
PIC18F4431-I/PT
Manufacturer:
MICROCHIP
Quantity:
1 400
Company:
Part Number:
PIC18F4431-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F4431-I/PT
Manufacturer:
MICROCHI
Quantity:
20 000
- Current page: 30 of 396
- Download datasheet (8Mb)
PIC18F2331/2431/4331/4431
REGISTER 2-2:
2.7.2
The PIC18F2331/2431/4331/4431 devices contain
circuitry to prevent clocking “glitches” when switching
between clock sources. A short pause in the system
clock occurs during the clock switch. The length of this
pause is between 8 and 9 clock periods of the new
clock source. This ensures that the new clock source is
stable and that its pulse width will not be less than the
shortest pulse width of the two clock sources.
Clock transitions are discussed in greater detail in
Section 3.1.2 “Entering Power-Managed Modes”.
DS39616B-page 28
OSCILLATOR TRANSITIONS
bit 7
bit 6-4
bit 3
bit 2
bit 1-0
OSCCON REGISTER
bit 7
IDLEN: Idle Enable bit
1 = Idle mode enabled; CPU core is not clocked in power-managed modes
0 = Run mode enabled; CPU core is clocked in power-managed modes
IRCF2:IRCF0: Internal Oscillator Frequency Select bits
111 = 8 MHz (8 MHz source drives clock directly)
110 = 4 MHz
101 = 2 MHz
100 = 1 MHz
011 = 500 kHz
010 = 250 kHz
001 = 125 kHz
000 = 31 kHz (INTRC source drives clock directly)
OSTS: Oscillator Start-up Time-out Status bit
1 = Oscillator start-up time-out timer has expired; primary oscillator is running
0 = Oscillator start-up time-out timer is running; primary oscillator is not ready
IOFS: INTOSC Frequency Stable bit
1 = INTOSC frequency is stable
0 = INTOSC frequency is not stable
SCS1:SCS0: System Clock Select bits
1x = Internal oscillator block (RC modes)
01 = Timer1 oscillator (Secondary modes)
00 = Primary oscillator (Sleep and PRI_IDLE modes)
Legend:
R = Readable bit
- n = Value at POR
IDLEN
R/W-0
Note 1: Depends on state of the IESO bit in Configuration Register 1H.
IRCF2
R/W-0
R/W-0
IRCF1
Preliminary
W = Writable bit
‘1’ = Bit is set
R/W-0
IRCF0
OSTS
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R
(1)
IOFS
R-0
2003 Microchip Technology Inc.
x = Bit is unknown
R/W-0
SCS1
R/W-0
SCS0
bit 0
Related parts for PIC18F4431-I/P
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
20-Pin USB Flash Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm T/
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm TRAY
Manufacturer:
Microchip Technology
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TR
Manufacturer:
Microchip Technology