PIC16LF15345-E/GZ
PIC16LF15345-E/GZ - 8-bit MCU, 14KB Flash, 32MHz XLP | Microchip
The Microchip Technology PIC16LF15345-E/GZ is an 8-bit PIC microcontroller featuring 14KB (8K x 14) of Flash program memory, 1KB of RAM, and a 32MHz internal oscillator, housed in a 20-pin UQFN (4x4 mm) package with exposed pad. The device belongs to the PIC16(L)F153xx family and combines eXtreme Low Power (XLP) technology with Core Independent Peripherals (CIPs) including 4 PWMs, a comparator, a 5-bit and 10-bit DAC, a 10-bit ADC, a Configurable Logic Cell (CLC), a Complementary Waveform Generator (CWG), and dual EUSART with SPI/I2C support.
What is a Microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals such as timers, communication interfaces, and analog blocks. MCUs sit inside the embedded systems hierarchy between discrete digital logic and full microprocessors, and they are the heart of nearly every battery-powered and IoT product. Microchip's PIC16 architecture uses a Harvard RISC core optimized for deterministic interrupt response and code efficiency, while the 16F family adds advanced peripherals and XLP power management for ultra-low standby current.
Key features of the PIC16LF15345 include 14KB self-programmable Flash, 1KB SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 17 channels, a 5-bit DAC and a 10-bit DAC, four 10-bit PWMs, two EUSART, two MSSP (SPI/I2C), CWG, CLC, and nanoWatt XLP technology delivering sub-uA sleep currents. The 'LF' prefix denotes the 1.8V to 3.6V wide operating voltage range, making the part ideal for single-cell Li-ion or 2x AA battery applications.
Architecturally, the device uses a 16-bit instruction word with an 8-bit data path, hardware stack, and peripheral pin select (PPS) for flexible signal routing. The instruction cache and prefetch buffer accelerate Flash access, and the integrated voltage regulator and brown-out reset (BOR) simplify power supply design. The PPS feature lets designers remap digital peripheral I/O onto a wide range of physical pins, easing PCB layout constraints.
Typical applications include IoT sensor nodes, battery-powered wearables, consumer appliance control, LED lighting controllers, and low-cost motor-control subsystems. The combination of dual EUSART, SPI/I2C, ADC, and PWMs makes it well-suited to industrial sensor conditioning and HMI front-ends.
When designing with this part, ensure the exposed pad on the UQFN-20 package is soldered to a sufficiently large copper pour for both thermal dissipation and ground return. Decouple VDD with a 1uF ceramic capacitor placed within 3 mm of the pin, and use the PPS feature carefully to avoid peripheral-pin conflicts during firmware bring-up.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for sourcing and selection.
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