PIC16LF1936-I/MV
PIC16LF1936-I/MV - 8-bit XLP MCU 14KB Flash 32MHz | Microchip
The Microchip Technology PIC16LF1936-I/MV is an 8-bit PIC microcontroller in the PIC16F family with nanoWatt XLP (eXtreme Low Power) technology, 14KB Flash program memory, 256B EEPROM, and an integrated LCD driver, housed in a 28-pin UQFN-EP 4x4 mm package. It runs at up to 32 MHz, operates from 2.3V to 3.6V, and exposes up to 36 I/O depending on package.
A PIC microcontroller (Programmable Interface Controller, or Peripheral Interface Controller) is a compact, self-contained computer-on-a-chip that integrates an 8-bit CPU core (in this case the Microchip mid-range enhanced core), Flash program memory, SRAM data memory, EEPROM data memory, and a configurable mix of peripherals such as timers, ADC, comparators, communication modules, and an LCD segment driver. The PIC sits within the broader taxonomy: microcontroller -> embedded MCU -> semiconductor -> integrated circuit. The LF suffix denotes the low-voltage (2.3-3.6V) variant, while the nanoWatt XLP designation is Microchip's branding for ultra-low sleep current suitable for battery-powered and energy-harvesting designs.
Key features of this device include 14KB (8K x 14 words) self-programmable Flash, 256 bytes of data EEPROM, 512 bytes of RAM, an 11-channel 10-bit ADC, two comparators, a charge time measurement unit (CTMU) for capacitive touch sensing, an LCD driver with up to 28 segments, an EUSART, two MSSP (I2C/SPI) modules, and three timers (Timer0/Timer1/Timer2). The enhanced mid-range 16F instruction set provides 49 instructions and hardware Multiply, accelerating arithmetic compared to baseline PIC.
Architecturally, the PIC16LF1936 uses a Harvard RISC-style core with a 14-bit instruction word and an 8-bit data path. The 32 MHz internal oscillator with 4x PLL provides up to 8 MIPS throughput. XLP technology delivers typical sleep currents below 100 nA with the LCD driver and RTCC running, enabling multi-year coin-cell operation in metering, remote controls, and wearables.
Typical applications include low-power IoT sensor nodes, battery-powered medical devices such as glucose meters, white goods and home appliances with LCD displays, metering (water/gas/electricity), capacitive-touch user interfaces, and remote-control transmitters. The integrated LCD segment driver with on-chip charge pump eliminates an external LCD bias generator, reducing BOM cost.
A key design consideration is the 28-pin UQFN-EP package, which exposes a thermal pad that must be soldered to the PCB ground pour to meet thermal and electrical performance. Designers should also plan the LF vs F variant: LF operates 2.3V to 3.6V (low-voltage, lower sleep current) while the F variant runs 1.8V to 5.5V; both share the same pinout but the LF version is preferred for XLP applications, while the F variant is preferred for higher analog accuracy at 5V.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling faster sourcing decisions for engineers designing with the PIC16LF1936 family.
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