PIC16LF1575T-I/ST - 8-bit MCU 14KB Flash 32MHz 10-bit ADC | Microchip
N.º da peça: PIC16LF1575T-I/ST ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.28 | $1,28 |
| 10 | $1.18 | $11,80 |
| 100 | $1.05 | $105,00 |
| 500 | $0.93 | $465,00 |
| 1.000 | $0.85 | $850,00 |
PIC16LF1575T-I/ST Visão geral
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.
Alternativas drop-in para PIC16LF1575T-I/ST — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16LF1575T-I/ST (mesmo formato e footprint) — diferindo em Package, Program Memory (Flash), ADC, Core Architecture, Data RAM.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF1574T-I/ST
✅ Drop-In✓ Em estoque
$0.6 / unidade
Ver ficha técnica →PIC16LF1554T-I/ST
✅ Drop-In✓ Em estoque
$0.95 / unidade
Ver ficha técnica →PIC16LF1575T-I/SL
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$0.88 / unidade
Ver ficha técnica →PIC16LF1575T-I/ST Classificações máximas e características elétricas
| Core Architecture | PIC16 8-bit RISC |
| Program Memory (Flash) | 14 KB |
| Data RAM | 1 KB |
| Data EEPROM | 128 bytes |
| CPU Clock Speed (max) | 32 MHz |
| Instruction Word Width | 14-bit |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 10-bit, with Computation (ADC2) |
| DAC | 5-bit |
| PWM | 16-bit, 1 channel |
| Complementary Waveform Generator | Yes (CWG) |
| EUSART | 1 |
| Peripheral Pin Select (PPS) | Yes |
| I/O Pins (max) | 12 |
| Encapsulamento | 14-pin TSSOP (ST) |
| Temperatura de operação | -40C to +85C (Industrial) |
| Tipo de montagem | Surface Mount |
| RoHS | Compliant |
Configuração de pinos do PIC16LF1575T-I/ST
| Pino 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pino 2 | RA5 — Digital I/O / analog input |
| Pino 3 | RA4 — Digital I/O / analog input |
| Pino 4 | RA3/MCLR — Digital I/O / Master Clear (reset) input |
| Pino 5 | RC5 — Digital I/O / analog input |
| Pino 6 | RC4 — Digital I/O / analog input |
| Pino 7 | RC3 — Digital I/O / analog input |
| Pino 8 | RC2 — Digital I/O / analog input |
| Pino 9 | RC1 — Digital I/O / analog input |
| Pino 10 | RC0 — Digital I/O / analog input |
| Pino 11 | RA2 — Digital I/O / analog input / DAC output |
| Pino 12 | RA1 — Digital I/O / analog input |
| Pino 13 | RA0 — Digital I/O / analog input |
| Pino 14 | VSS — Ground reference |
Aplicações típicas
PIC16LF1575T-I/ST é adequado para 6 aplicaçãos: LED Lighting Control with CWG, Battery-Powered IoT Sensor Node, Small Motor and Fan Driver, Low-Cost Consumer Appliance Control, Human-Machine Interface (HMI) Keypad or Display, Portable Medical or Wellness Device.
LED Lighting Control with CWG
The PIC16LF1575T-I/ST is well-suited for LED drivers and decorative lighting controllers because it integrates a Complementary Waveform Generator (CWG) and a 16-bit PWM in the same 14-pin TSSOP package. The CWG produces complementary outputs with programmable dead-band delay, which directly drives half-bridge LED FETs without an external gate driver, while the 16-bit PWM provides fine-grained dimming resolution. Operating from 1.8V to 3.6V, the device accepts a single Li-ion or 2xAA battery, eliminating the need for a boost converter. The 32MHz CPU runs the lighting state machine and supports DMX or DALI over the EUSART.
Recomendado
Battery-Powered IoT Sensor Node
The 1.8V to 3.6V operating range and low-power Sleep modes make the PIC16LF1575T-I/ST a strong fit for wireless sensor nodes that scavenge energy from coin cells or thin-film batteries. The 10-bit ADC2 with Computation peripheral offloads averaging and threshold detection, allowing the CPU to remain in Sleep until a meaningful event occurs - critical for multi-year battery life. The 14KB Flash stores the sensor stack plus a small RF driver; PPS lets the designer remap UART, PWM, or ADC inputs to any I/O pin, simplifying PCB routing around antenna keep-out zones.
Recomendado
Small Motor and Fan Driver
The combination of a 16-bit PWM and the CWG peripheral enables closed-loop brushless DC fan control or brushed DC motor speed regulation directly from the PIC16LF1575T-I/ST. The CWG handles the complementary switching and dead-band insertion needed for H-bridge FETs, while the 16-bit PWM provides 32kHz+ switching frequencies for silent operation. Back-EMF feedback uses the 10-bit ADC with Computation to perform oversampling and zero-crossing detection without CPU overhead. The 14-pin TSSOP footprint fits inside the fan housing.
Recomendado
Low-Cost Consumer Appliance Control
White goods and small kitchen appliances benefit from the PIC16LF1575T-I/ST's balance of 14KB Flash for state-machine firmware, a 10-bit ADC for sensing temperature or humidity, and an EUSART for diagnostic or user-interface communication. PPS allows the PCB designer to remap pins for optimal layout, and the 1.8V to 3.6V supply supports direct connection to a rectified 3.3V rail. The integrated 5-bit DAC can be used as a simple bias reference or for setpoint signaling. Industrial-grade -40C to +85C temperature rating ensures reliable operation near heating elements.
Recomendado
Human-Machine Interface (HMI) Keypad or Display
The PIC16LF1575T-I/ST drives small graphical or segment LCDs, capacitive touch keypads, and rotary encoder inputs in HMI sub-systems. With 12 available I/O pins (PPS-reassignable), designers can dedicate pins to SPI display data, I2C capacitive touch controllers, and interrupt-driven encoder inputs without a larger package. The 32MHz CPU executes multi-tasking UI code at 8 MIPS, which is sufficient for menu rendering and debounce. The 10-bit ADC supports analog joystick or potentiometer inputs as a redundant user-control channel.
Recomendado
Portable Medical or Wellness Device
The PIC16LF1575T-I/ST fits portable medical peripherals such as pulse-oximeter front-ends, digital thermometer base units, and electronic pill dispensers. The 10-bit ADC2 with Computation executes baseline-correction and signal-averaging routines autonomously, offloading the CPU to manage Bluetooth Low Energy link via an external module over EUSART. The 1.8V to 3.6V supply matches a single Li-ion or 2xAAA battery, and the -40C to +85C industrial rating covers home and clinical environments. Per the Microchip datasheet, PPS lets the designer place analog inputs near the sensor pads.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF1575T-I/ST — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF1574T-I/ST | PIC16LF1554T-I/ST | PIC16LF1575T-I/SL |
|---|---|---|---|---|
| Package | TSSOP-14 (ST) | TSSOP-14 - same | TSSOP-14 - same | SOIC-14 - different footprint (not pin-compatible drop-in) |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 14 KB | 7 KB (-50%) | 7 KB (-50%) | 14 KB - same |
| RAM | 1 KB | 512 B (-50%) | 512 B (-50%) | 1 KB - same |
| Max CPU Clock | 32 MHz | 32 MHz - same | 32 MHz - same | 32 MHz - same |
| ADC | 10-bit ADC2 | 10-bit ADC2 - same | 10-bit ADC - different (no Computation) | 10-bit ADC2 - same |
| CWG (Complementary Waveform Generator) | Yes | Yes - same | No | Yes - same |
| I/O Pins (max) | 12 | 6-8 (lower-pin variant) | 12 - same | 12 - same |
| Supply Voltage | 1.8V to 3.6V | 1.8V to 3.6V - same | 1.8V to 3.6V - same | 1.8V to 3.6V - same |
Principais diferenciais
- Highest Flash density in PIC16LF157x TSSOP-14 family (vs PIC16LF1574T-I/ST)
- Integrated Complementary Waveform Generator (CWG) simplifies switch-mode control (vs PIC16LF1554T-I/ST)
- TSSOP-14 footprint saves board area versus SOIC-14 (vs PIC16LF1575T-I/SL)
Notas de projeto
Place a 0.1uF ceramic decoupling capacitor within 3mm of the VDD pin and a 1uF bulk capacitor on the same net to suppress switching transients when the CPU transitions from Sleep to active. For ADC2 noise performance, dedicate a separate 10uH ferrite bead on AVDD if available, or star-route VDD to the MCU from the regulator output. The 1.8V-3.6V supply range allows direct connection to a single-cell Li-ion or 2xAA battery without a boost converter, simplifying the BOM.
Do not exceed the absolute maximum VDD of 4.0V - the on-chip Flash and ADC2 modules degrade permanently above this threshold. When programming via ICSP, ensure the MCLR pull-up is strong enough (typically 10k) to prevent spurious resets during in-circuit programming. PPS reassignments are non-volatile only after the PPSLOCK unlock sequence; failing to follow the unlock sequence silently ignores the pin-remap write and is a frequent source of debug frustration.
Route analog ADC inputs away from switching nodes such as the CWG outputs and PWM pins to avoid coupled noise. Use a ground guard ring around sensitive analog traces and tie the analog ground (AVSS) to the digital ground (VSS) at a single point near the MCU. For the EUSART, add a 100 ohm source termination if the trace exceeds 50mm or if baud rates go above 115.2 kbps.
Estimated: at VDD=3.3V and full 32MHz active mode, the device dissipates approximately 8mA * 3.3V = 26.4 mW - well within the TSSOP-14 thermal envelope and no heatsink is required. In Sleep mode the current drops below 1uA per the Microchip datasheet, allowing battery-powered designs to operate for years on a coin cell. Verify the actual IDD figure against the latest datasheet revision because it varies with peripheral enable state.
Informações de conformidade
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - choose automotive-grade PIC16F equivalent for AEC-Q100 designs. Halogen-free per Microchip environmental certifications.
