PIC16LF1575T-I/ST
PIC16LF1575T-I/ST - 8-bit MCU 14KB Flash 32MHz 10-bit ADC | Microchip
The Microchip Technology PIC16LF1575T-I/ST is an 8-bit PIC microcontroller from the PIC16LF157x family that integrates 14KB of Flash program memory, 1KB of RAM, a 32MHz internal oscillator, and a 10-bit ADC with computation, all housed in a 14-pin TSSOP package. It operates from a 1.8V to 3.6V supply and is rated for the industrial -40C to +85C temperature range, making it a low-power member of the mid-range PIC16F platform.
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and Harvard architecture, integrating a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a set of on-chip peripherals such as timers, ADCs, PWM, communication ports, and I/O. MCUs are the lowest level of embedded computing in the semiconductor hierarchy: microcontroller -> microprocessor -> integrated circuit -> semiconductor device. The PIC16 family occupies the mainstream low-power tier in the Microchip portfolio, below the PIC18/dsPIC33 high-performance families and above the PIC10/12 baseline families.
Key features of the PIC16LF1575 include a 32MHz maximum CPU clock (8MHz with 4x PLL), 14KB Flash with self-programmability, 1KB RAM, 128 bytes of EEPROM, a 10-bit ADC with Computation (ADC2) for automated averaging and threshold comparison, a 5-bit DAC, Complementary Waveform Generator (CWG), 16-bit PWM, Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), Peripheral Pin Select (PPS) for flexible I/O mapping, and up to 12 I/O pins. The "LF" prefix denotes the low-voltage (1.8V-3.6V) variant optimized for battery-powered designs.
Architecturally the device uses a RISC-style PIC core with a 14-bit instruction word, hardware stack, and single-cycle hardware multiplier. The ADC2 peripheral offloads averaging, accumulation, and threshold detection from the CPU, allowing autonomous sensor sampling. The CWG combined with 16-bit PWM simplifies half-bridge, full-bridge, and synchronous-rectifier switch-mode control without an external driver.
Typical applications include LED lighting control using the integrated CWG and PWM, battery-powered IoT sensor nodes that leverage the 1.8V-3.6V range and low-power modes, low-cost consumer appliances needing a 10-bit ADC, small motor control and fan drivers using PWM + CWG, and human-machine interface (HMI) panels with EUSART-driven keypads or displays.
When designing with this part, allocate the TSSOP-14 thermal pad correctly and observe the 3.6V absolute-maximum VDD. For ADC2 noise performance, use a clean AVSS/AVDD pair, place a 0.1uF + 1uF decoupling network close to the supply pins, and route analog traces away from switching nodes.
This page synthesizes current distributor pricing, drop-in 14-pin TSSOP alternatives from the same PIC16LF157x family and competitors, and practical design notes that go beyond the manufacturer datasheet.
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