Specification	PIC18LF55K42T-I/PT

Connectivity	I2C, LINbus, UART/USART, SPI
Core Processor	PIC
Core Size	8-Bit
Data Converters	D/A 1x5b, A/D 43x12b
EEPROM Size	256 x 8
Mounting Type	Surface Mount
Number of I/O	44
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Oscillator Type	Internal
Package / Case	48-TQFP Exposed Pad
Peripherals	PWM, LVD, WDT, Brown-out Detect/Reset, POR
Program Memory Size	32 KB
Program Memory Type	FLASH
RAM Size	2K x 8
Speed	64 MHz
Supplier Device Package	48-TQFP-EP (7x7)
Voltage - Supply (Vcc/Vdd) [Max]	3.6 V
Voltage - Supply (Vcc/Vdd) [Min]	1.8 V

PIC18F55K42 Series

Versatile MCUs with Hardware Customization

Part	Package / Case	Peripherals	Core Size	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Connectivity	Operating Temperature [Max]	Operating Temperature [Min]	Oscillator Type	Data Converters	Supplier Device Package	Mounting Type	Speed	Program Memory Type	Program Memory Size	RAM Size	Core Processor	Number of I/O	EEPROM Size	Data Converters
Microchip Technology PIC18F55Q43-I/PT	48-TQFP	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	I2C LINbus SPI UART/USART	85 °C	-40 °C	Internal	A/D 43x12b D/A 1x8b	48-TQFP (7x7)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44
Microchip Technology PIC18F55Q43T-I/6LX	48-VFQFN Exposed Pad	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	I2C LINbus SPI UART/USART	85 °C	-40 °C	Internal	A/D 43x12b D/A 1x8b	48-VQFN (6x6)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44
Microchip Technology PIC18F55Q43-E/6LX	48-VFQFN Exposed Pad	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	I2C LINbus SPI UART/USART	125 °C	-40 °C	Internal	A/D 43x12b D/A 1x8b	48-VQFN (6x6)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44
Microchip Technology PIC18F55Q71T-I/PT	44-TQFP	Brown-out Detect/Reset DMA LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	DALI FIFO I2C LINbus SMBus SPI UART/USART	85 °C	-40 °C	External Internal	10b 12b 8b	44-TQFP (10x10)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44	256 x 8	2 43
Microchip Technology PIC18F55Q71-I/PT	48-TQFP Exposed Pad	Brown-out Detect/Reset DMA LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	DALI FIFO I2C LINbus SMBus SPI UART/USART	85 °C	-40 °C	External Internal	A/D 43x12b SAR D/A 2x8b 1x10b	48-TQFP-EP (7x7)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44	256 x 8
Microchip Technology PIC18F55Q71-E/6LX	48-VFQFN Exposed Pad	Brown-out Detect/Reset DMA LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	DALI FIFO I2C LINbus SMBus SPI UART/USART	125 °C	-40 °C	External Internal	A/D 43x12b SAR D/A 2x8b 1x10b	48-VQFN (6x6)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44	256 x 8
Microchip Technology PIC18F55K42-I/PT	48-TQFP Exposed Pad	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	2.3 V	5.5 V	I2C LINbus SPI UART/USART	85 °C	-40 °C	Internal	A/D 43x12b D/A 1x5b	48-TQFP-EP (7x7)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44	256 x 8
Microchip Technology PIC18LF55K42T-I/MV	48-UFQFN Exposed Pad	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	1.8 V	3.6 V	I2C LINbus SPI UART/USART	85 °C	-40 °C	Internal	A/D 43x12b D/A 1x5b	48-UQFN (6x6)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44	256 x 8
Microchip Technology PIC18LF55K42-E/PT	48-TQFP Exposed Pad	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	1.8 V	3.6 V	I2C LINbus SPI UART/USART	125 °C	-40 °C	Internal	A/D 43x12b D/A 1x5b	48-TQFP-EP (7x7)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44	256 x 8
Microchip Technology PIC18F55Q43-E/PT	48-TQFP	Brown-out Detect/Reset LVD POR PWM WDT	8-Bit	1.8 V	5.5 V	I2C LINbus SPI UART/USART	125 °C	-40 °C	Internal	A/D 43x12b D/A 1x8b	48-TQFP (7x7)	Surface Mount	64 MHz	FLASH	32 KB	2K x 8	PIC	44

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.43
		25	$ 2.23
		100	$ 2.03
	Digi-Reel®	1	$ 2.43
		25	$ 2.23
		100	$ 2.03
	Tape & Reel (TR)	1600	$ 2.03
Microchip Direct	T/R	1	$ 2.43
		25	$ 2.23
		100	$ 2.03
		1000	$ 1.86
		5000	$ 1.76

Description

General part information

PIC18F55K42 Series

PIC18-Q43 combines our most popular, versatile and easy to use Core Independent Peripherals with advanced interconnection capabilities that make sophisticated hardware customization effortless. These 28-, 40- and 48-pin devices are equipped with a 12-bit ADC with computation, six 16-bit dual PWMs outputs, six Direct Memory Access channels, eight Configurable Logic Cells (CLCs) and five UARTS. This combination simplifies the creation of customized hardware-based functions to improve system response and reduce code development time for a variety of real-time control applications.

[***PIC18-Q43 Product Family Overview***](https://www.microchip.com/design-centers/8-bit/pic-mcus/device-selection/pic18-q43-product-family)

[***Check out Code Examples***](https://mplab-discover.microchip.com/v1/itemtype/com.microchip.ide.project?s0=com.microchip.ide.project%3Adevice.content.name%3Aq43&ds0=com.microchip.portal.start.displayCharacteristics%3A1.0.3%3As0)

Documents

Technical documentation and resources

Datasheet

PIC18LF55K42T-I/PT

Deep-Dive with AI

PIC18LF55K42T-I/PT

Deep-Dive with AI

Technical Specifications

PIC18F55K42 Series

Pricing

Description

PIC18F55K42 Series

Documents

Datasheet

Getting Started with HLVD Technical Brief

PIC18(L)F2X/4X/5XK42 Highly Integrated 8-Bit PIC MCUs in 28- to 48- Pins

PIC18(L)F26/45/46/55/56K42 Family Silicon Errata and Data Sheet Clarification

5-Bit Digital-to-Analog Converter

PIC1000: Getting Started with Writing C-Code for PIC16F and PIC18F

PIC18F55K42 Series