Specification	PIC18F4431T-I/PT

A/D Channels	9 count
A/D Resolution (bits)	10 bit
Connectivity	USART, UART, SPI, I2C
Core Processor	PIC
Core Size (Bit Width)	8 Bit
EEPROM Size (Depth)	256
EEPROM Size (Width)	8 bit
Mounting Type	Surface Mount
Number of I/O	36
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Oscillator Type	Internal
Package / Case	44-TQFP
Package Length	10 mm
Package Name	44‑TQFP
Package Width	10 mm
Peripherals	Reset, LVD, PWM, Brown-out Detect, QEI, POR, WDT, Power Control PWM
Program Memory Depth	8 K
Program Memory Size	16 KB
Program Memory Type	FLASH
Program Memory Width	16
RAM Size Depth	768
RAM Size Width	8 bit
Speed	40 MHz
Voltage - Supply (Vcc/Vdd) Maximum	5.5 V
Voltage - Supply (Vcc/Vdd) Minimum	4.2 V

PIC18F4431 Series

Part	Mounting Type	EEPROM Size (Width)	EEPROM Size (Depth)	Peripherals	Speed	Operating Temperature (Max)	Operating Temperature (Min)	Core Size (Bit Width)	Number of I/O	Oscillator Type	Package Length	Package Name	Package Width	Program Memory Type	Program Memory Depth	Program Memory Size	Program Memory Width	RAM Size Width	RAM Size Depth	A/D Resolution (bits)	A/D Channels	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Core Processor	Connectivity	Package / Case
Microchip Technology PIC18F4431-E/ML	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	125 °C	-40 °C	8 Bit	36	Internal	8 mm	44-QFN	8 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART	44-VQFN Exposed Pad
Microchip Technology PIC18F4431-E/P	Through Hole	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	125 °C	-40 °C	8 Bit	36	Internal	0.6 in	40-DIP 40-PDIP	15.24 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART
Microchip Technology PIC18F4431T-I/ML	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	8 mm	44-QFN	8 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART	44-VQFN Exposed Pad
Microchip Technology PIC18LF4431-I/P	Through Hole	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	0.6 in	40-DIP 40-PDIP	15.24 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	2 V	5.5 V	PIC	I2C SPI UART USART
Microchip Technology PIC18F4431-I/ML	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	8 mm	44-QFN	8 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART	44-VQFN Exposed Pad
Microchip Technology PIC18LF4431-I/PT	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	10 mm	44‑TQFP	10 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	2 V	5.5 V	PIC	I2C SPI UART USART	44-TQFP
Microchip Technology PIC18F4431-I/PT	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	10 mm	44‑TQFP	10 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART	44-TQFP
Microchip Technology PIC18F4431-E/PT	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	125 °C	-40 °C	8 Bit	36	Internal	10 mm	44‑TQFP	10 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART	44-TQFP
Microchip Technology PIC18F4431T-I/PT	Surface Mount	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	10 mm	44‑TQFP	10 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART	44-TQFP
Microchip Technology PIC18F4431-I/P	Through Hole	8 bit	256	Brown-out Detect LVD POR Power Control PWM PWM QEI Reset WDT	40 MHz	85 °C	-40 °C	8 Bit	36	Internal	0.6 in	40-DIP 40-PDIP	15.24 mm	FLASH	8 K	16 KB	16	8 bit	768	10 bit	9 count	4.2 V	5.5 V	PIC	I2C SPI UART USART

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	Cut Tape (CT)	1	$ 6.84	1m+
	Digi-Reel®	1	$ 6.84	1m+
	N/A	0	$ 6.84	1m+
	Tape & Reel (TR)	1200	$ 6.84	1m+
Microchip Direct	T/R	1	$ 6.04	1m+
		25	$ 5.90
		100	$ 5.76
		1000	$ 5.29
		5000	$ 5.05

CAD

3D models and CAD resources for this part

Description

General part information

PIC18F4431 Series

Up to 4 Channels with Complementary Outputs

Edge or Center-Aligned Operation

Flexible Dead-Band Generator

Documents

Technical documentation and resources

PIC18F4431T-I/PT

Deep-Dive with AI

PIC18F4431T-I/PT

Deep-Dive with AI

Technical Specifications

PIC18F4431 Series

Pricing

CAD

Description

PIC18F4431 Series

Documents

PIC18F2x31, 4x31 Programming Specification

Datasheet

PIC18F2331/2431/4331/4431 Rev. A2 Silicon Errata

PICDEM MC Development Board Errata

SSP Module Silicon Errata Sheet

PIC18F2331/2431/4331/4431 Rev. A3 Silicon Errata

PIC18F2331/2431/4331/4431 Data Sheet Errata

PIC18F4431 Series