Specification	PIC16F1939-I/PT

Connectivity	I2C, LINbus, UART/USART, SPI
Core Processor	PIC
Core Size	8-Bit
Data Converters [custom]	10 b
Data Converters [custom]	14
EEPROM Size	256 x 8
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
Peripherals	POR, WDT, LCD, Brown-out Detect/Reset, PWM
Program Memory Size	28 KB
Program Memory Type	FLASH
RAM Size	1 K
Speed	32 MHz
Supplier Device Package	44-TQFP (10x10)
Voltage - Supply (Vcc/Vdd) [Max]	5.5 V
Voltage - Supply (Vcc/Vdd) [Min]	1.8 V

PIC16LF1939 Series

Part	Oscillator Type	Peripherals	Program Memory Type	Number of I/O	Connectivity	Program Memory Size	Operating Temperature [Max]	Operating Temperature [Min]	Data Converters [custom]	Data Converters [custom]	Speed	Mounting Type	RAM Size	Supplier Device Package	Core Size	Core Processor	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Package / Case	Package / Case	Package / Case	EEPROM Size
Microchip Technology PIC16LF1939-I/P	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Through Hole	1 K	40-PDIP	8-Bit	PIC	1.8 V	3.6 V	15.24 mm	0.6 in	40-DIP	256 x 8
Microchip Technology PIC16F1939-I/PT	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	44-TQFP (10x10)	8-Bit	PIC	1.8 V	5.5 V			44-TQFP	256 x 8
Microchip Technology PIC16LF1939T-I/MV	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	40-UQFN (5x5)	8-Bit	PIC	1.8 V	3.6 V			40-UFQFN Exposed Pad	256 x 8
Microchip Technology PIC16F1939T-I/MV	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	40-UQFN (5x5)	8-Bit	PIC	1.8 V	5.5 V			40-UFQFN Exposed Pad	256 x 8
Microchip Technology PIC16F1939-I/MV	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	40-UQFN (5x5)	8-Bit	PIC	1.8 V	5.5 V			40-UFQFN Exposed Pad	256 x 8
Microchip Technology PIC16LF1939T-I/ML	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	44-QFN (8x8)	8-Bit	PIC	1.8 V	3.6 V			44-VQFN Exposed Pad	256 x 8
Microchip Technology PIC16LF1939-E/MV	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	125 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	40-UQFN (5x5)	8-Bit	PIC	1.8 V	3.6 V			40-UFQFN Exposed Pad	256 x 8
Microchip Technology PIC16F1939T-I/ML	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	44-QFN (8x8)	8-Bit	PIC	1.8 V	5.5 V			44-VQFN Exposed Pad	256 x 8
Microchip Technology PIC16LF1939-E/ML	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	125 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	44-QFN (8x8)	8-Bit	PIC	1.8 V	3.6 V			44-VQFN Exposed Pad	256 x 8
Microchip Technology PIC16LF1939-I/MV	Internal	Brown-out Detect/Reset LCD POR PWM WDT	FLASH	36	I2C LINbus SPI UART/USART	28 KB	85 °C	-40 °C	10 b	14	32 MHz	Surface Mount	1 K	40-UQFN (5x5)	8-Bit	PIC	1.8 V	3.6 V			40-UFQFN Exposed Pad	256 x 8

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tray	1	$ 2.88
		25	$ 2.64
		100	$ 2.39
Microchip Direct	TRAY	1	$ 2.88
		25	$ 2.64
		100	$ 2.39
		1000	$ 2.18
		5000	$ 2.09

Description

General part information

PIC16LF1939 Series

This versatile 40-pin MCU is also a member of Microchip's extreme low power microcontroller family featuring nanoWatt XLP technology. Debug Support • Integrated debug support on Device. No Debug Header is required • An optional external Debug Header, AC244035 or AC244036, is also available for Debugging support • Debug and Programming support is available via PICkit™ 3, and MPLAB® ® ICD 3 • For additional Debug Header Information, please refer to [DS51292](https://ww1.microchip.com/downloads/en/DeviceDoc/Header_Board_51292m.pdf).

Documents

Technical documentation and resources

Next Generation Peripherals Brochure

Datasheet

PIC16(L)F19xx Programming Spec

Datasheet

eXtreme Low-Power (XLP) PIC Microcontrollers: An Introduction to Microchip's Low-Power Devices

Application Notes

PIC16F1939-I/PT

Deep-Dive with AI

PIC16F1939-I/PT

Deep-Dive with AI

Technical Specifications

PIC16LF1939 Series

Pricing

Description

PIC16LF1939 Series

Documents

Next Generation Peripherals Brochure

Datasheet

PIC16(L)F19xx Programming Spec

eXtreme Low-Power (XLP) PIC Microcontrollers: An Introduction to Microchip's Low-Power Devices

An I2C Bootloader for the PIC16F1XXX Enhanced Core

Software Real-Time Clock and Calendar Using PIC16F1827

Use and Calibration of the Internal Temperature Indicator

PIC16(L)F1938/1939 28/40/44-Pin Flash-Based 8-Bit CMOS MCU with LCD Driver

Datasheet

PIC16LF1939 Series