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With 10 interrupt sources, the PIC16LF1939-I/PT offers flexibility in handling external events and prioritizing tasks

PIC16LF1939-I/PT General Description

The PIC16LF1939-I/PT microcontroller by Microchip Technology is a versatile solution for low-power applications. It offers a range of features, including an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) module for efficient serial communication. With two Capture/Compare/PWM modules, this microcontroller allows for precise control over timing and power output

Key Features

  • Enhanced Mid-range Core with 49 Instruction, 16 Stack Levels
  • Flash Program Memory with self read/write capability
  • 96 LCD segment drive support
  • Internal 32MHz oscillator
  • Integrated Capacitive mTouch Sensing Module
  • Integrated Temperature Indicator
  • MI2C, SPI, EUSART w/auto baud
  • 3 ECCP & 2 CCP (Enhanced/Capture Compare PWM)
  • Comparators with selectable Voltage Reference
  • 14 Channel 10b ADC with Voltage Reference
  • 25mA Source/Sink current I/O
  • Four 8-bit Timers (TMR0/TMR2/TMR4/TMR6)
  • One 16-bit Timer (TMR1)
  • Extended Watchdog Timer (EWDT)
  • Enhanced Power-On/Off-Reset
  • Brown-Out Reset (BOR)
  • In Circuit Serial Programming (ICSP)
  • Wide Operating Voltage (1.8V – 5.5V)
  • Low Voltage PIC16LF1939 variant (1.8V – 3.6V)


Source Content uid PIC16LF1939-I/PT Pbfree Code Yes
Part Life Cycle Code Active Pin Count 44
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.31.00.01 Factory Lead Time 52 Weeks
Has ADC YES Bit Size 8
Boundary Scan NO CPU Family PIC16
Clock Frequency-Max 32 MHz DAC Channels YES
DMA Channels NO Format FIXED POINT
Integrated Cache NO JESD-30 Code S-PQFP-G44
JESD-609 Code e3 Length 10 mm
Low Power Mode YES Moisture Sensitivity Level 1
Number of External Interrupts 1 Number of I/O Lines 36
Number of Serial I/Os 1 Number of Terminals 44
Number of Timers 8 On Chip Data RAM Width 8
On Chip Program ROM Width 14 Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C PWM Channels YES
Peak Reflow Temperature (Cel) 260 Qualification Status Not Qualified
RAM (bytes) 1024 ROM (words) 16384
ROM Programmability FLASH Seated Height-Max 1.2 mm
Speed 32 MHz Supply Current-Max 4.6 mA
Supply Voltage-Max 3.6 V Supply Voltage-Min 2.5 V
Supply Voltage-Nom 3 V Surface Mount YES
Technology CMOS Temperature Grade INDUSTRIAL
Terminal Finish MATTE TIN Terminal Form GULL WING
Terminal Pitch 0.8 mm Terminal Position QUAD
Time@Peak Reflow Temperature-Max (s) 40 Width 10 mm

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