PIC16F1575T-I/ST - 8-bit MCU, 14KB Flash, 16b PWM | Microchip
N.º de pieza: PIC16F1575T-I/ST ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.65 | $1,65 |
| 10 | $1.49 | $14,90 |
| 100 | $1.32 | $132,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $1.05 | $1.050,00 |
PIC16F1575T-I/ST Descripción general
What is a PIC16 microcontroller? A PIC16 (Peripheral Interface Controller, 16-bit instruction word family) is an 8-bit Harvard-architecture microcontroller from Microchip Technology, positioned in the mid-range PIC product line. The PIC16F1575 belongs to the enhanced mid-range core family which supports a deeper instruction set, multiple interrupt sources, and configurable peripherals - bridging the gap between baseline PIC10/12/16 and the higher-end PIC18/PIC24 architectures. Within the broader taxonomy, it is classified as a microcontroller -> 8-bit MCU -> PIC16 family -> enhanced mid-range core -> mixed-signal controller.
Key features include 32MHz internal oscillator operation, four 16-bit PWMs (16-bit resolution is unusually high for an 8-bit MCU and is the primary market differentiator), hardware limit timers on the PWM, a 10-bit ADC with acquisition timer, two comparators with selectable references, and zero-cross detection support. The device supports 1.8V to 5.5V operation across -40C to +85C industrial temperature range.
Technically, the PIC16F1575 uses the enhanced mid-range core (49 instructions, 16-bit opcode) with a hardware multiplier and C compiler friendly architecture. Its four 16-bit PWMs are driven by independent time bases, allowing phase-shifted, complementary, and variable-frequency outputs suitable for digital LED dimming, full-bridge motor drives, and Class-D audio amplifiers.
Typical applications include 4-channel LED dimming controllers, BLDC and stepper motor commutation, digitally controlled power supplies, battery charging management, and any cost-sensitive 8-bit design requiring fine-grained PWM resolution that 10-bit PWMs on competing 8-bit MCUs cannot deliver.
When designing with this part, ensure the PWM outputs are correctly mapped to the chosen package pins, as TSSOP-14 vs SOIC-14 vs PDIP-14 variants have different peripheral pin assignments. Decoupling capacitors should be placed close to VDD/VSS pairs.
This page synthesizes distributor pricing, verified drop-in alternatives from the PIC16F1575 family, and design notes that go beyond the manufacturer datasheet by mapping application-fit parameters explicitly.
Alternativas directas para PIC16F1575T-I/ST — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16F1575T-I/ST (mismo factor de forma y huella) — difiere en ADC, Package, Program Memory (Flash), Operating Temperature Range, Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16F1574T-I/ST
✅ Sustitución directa✓ En stock
$0.86 / unidad
Ver hoja de datos →PIC16F1575-I/ST
✅ Sustitución directa✓ En stock
$1.62 / unidad
Ver hoja de datos →PIC16F1575T-I/JQ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$1.05 / unidad
Ver hoja de datos →PIC16F1575-E/ST
✅ Sustitución directa✓ En stock
$1.05 / unidad
Ver hoja de datos →PIC16F1503-I/ST
✅ Sustitución directa✓ En stock
$0.94 / unidad
Ver hoja de datos →PIC16F1575T-I/ST Valores máximos y características eléctricas
| Core Architecture | Enhanced Mid-Range 8-bit PIC16 |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1 KB |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| 16-bit PWM Modules | 4 (with independent time bases) |
| ADC | 10-bit, up to 8 channels |
| Comparators | 2 |
| Timers | 2 x 8-bit, 9 x 16-bit (per Xecor compare) |
| Rango de temperatura de funcionamiento | -40C to +85C (Industrial) |
| Encapsulado | 14-pin TSSOP |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
| Lead-Free | Yes |
Configuración de pines de PIC16F1575T-I/ST
| Pin 1 | RA3 — Digital I/O / analog input |
| Pin 2 | RA4 — Digital I/O / analog input |
| Pin 3 | RA5 — Digital I/O / analog input |
| Pin 4 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB4 — Digital I/O / PWM output |
| Pin 7 | RB5 — Digital I/O / PWM output |
| Pin 8 | RB6 — Digital I/O / ICSPCLK |
| Pin 9 | RB7 — Digital I/O / ICSPDAT |
| Pin 10 | RC0 — Digital I/O / PWM output |
| Pin 11 | RC1 — Digital I/O / PWM output |
| Pin 12 | RC2 — Digital I/O / PWM output |
| Pin 13 | RC3 — Digital I/O / PWM output |
| Pin 14 | RA0 — Digital I/O / analog input |
Aplicaciones típicas
PIC16F1575T-I/ST es adecuado para 7 aplicacións: 4-Channel LED Dimming Controller, BLDC and Stepper Motor Control, Digitally Controlled Power Supplies, Class-D Audio Amplifier Modulator, Battery Charging Management, Industrial Sensor Signal Conditioning, General-Purpose 8-bit Embedded Controller.
4-Channel LED Dimming Controller
The PIC16F1575T-I/ST's four 16-bit PWM channels make it a natural fit for multi-channel LED dimming controllers in architectural and stage lighting. Each PWM channel drives an independent LED string with 16-bit resolution - far finer than the 8-bit or 10-bit PWMs on competing 8-bit MCUs - enabling smooth fades from 0.001% to 100% duty without visible flicker. The 32MHz internal oscillator and 14KB Flash comfortably handle C-compiled lookup-table dimming curves and DMX-style control protocols. Place the part on a TSSOP-14 footprint near the LED driver MOSFETs; route PWM outputs through gate resistors to minimize ringing.
Recomendado
BLDC and Stepper Motor Control
The four 16-bit PWMs with independent timers and complementary output support enable 3-phase BLDC motor commutation in sensorless or Hall-sensor configurations. Combined with the two on-chip comparators (used for back-EMF sensing) and the 10-bit ADC (for current monitoring), the PIC16F1575T-I/ST is a single-chip solution for low-power BLDC fan, pump, and small-drone motor drives. The 14KB Flash holds standard 6-step or FOC-lite commutation tables plus RPM feedback loops.
Recomendado
Digitally Controlled Power Supplies
The PIC16F1575T-I/ST's 16-bit PWMs paired with its 10-bit ADC form a closed-loop digital power converter controller suitable for LED drivers, battery chargers, and small buck/boost regulators. The PWMs drive the power-switch MOSFET gate at high resolution, while the ADC samples output voltage for feedback. The 32MHz instruction rate provides ample bandwidth for voltage-mode control loops at switching frequencies up to ~500kHz. Internal comparators enable peak-current-mode control without external components.
Recomendado
Class-D Audio Amplifier Modulator
Using two complementary 16-bit PWM channels as a differential output pair, the PIC16F1575T-I/ST can modulate a Class-D audio amplifier at moderate fidelity for low-cost toys, intercoms, and notification appliances. The 32MHz clock and high PWM resolution minimize output filter requirements. The 14KB Flash accommodates simple audio playback from internal tables. Pair with an external MOSFET H-bridge and LC output filter for a complete sub-$1 amplifier solution.
Recomendado
Battery Charging Management
The PIC16F1575T-I/ST handles single or multi-chemistry battery charging (Li-Ion, NiMH, lead-acid) by combining PWM-driven buck regulators with ADC-based voltage/current monitoring and comparator-based termination detection. Its 1.8V minimum operating voltage allows direct connection to single-cell battery stacks without boost circuitry. Industrial temperature grade supports automotive and outdoor solar charging applications. The 14KB Flash fits standard CC/CV charge profiles and safety timers.
Recomendado
Industrial Sensor Signal Conditioning
With two comparators for threshold detection, a 10-bit ADC for sensor digitization, and four 16-bit PWMs (often re-tasked as frequency generators or counters), the PIC16F1575T-I/ST serves as a compact industrial signal conditioner for 4-20mA loops, RTD sensors, and thermistor bridges. The wide 1.8V-5.5V operating range handles both 3.3V digital I/O and 5V analog sensor rails. Industrial temperature grade and small TSSOP-14 footprint suit dense PLC backplane designs.
Recomendado
General-Purpose 8-bit Embedded Controller
Beyond its PWM focus, the PIC16F1575T-I/ST is a capable general-purpose 8-bit controller for cost-sensitive IoT endpoints, simple user interfaces, and protocol bridges. The 14KB Flash, 1KB SRAM, and enhanced mid-range instruction set handle C-compiled applications including UART, I2C, and SPI peripherals (though the specific peripheral count varies by package). Its TSSOP-14 footprint is smaller than common 20-pin PIC alternatives, enabling ultra-compact PCB designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16F1575T-I/ST — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16F1574T-I/ST | PIC16F1575-I/ST | PIC16F1575-E/ST | PIC16F1503-I/ST |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin TSSOP | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same | 14-pin TSSOP - same |
| Flash Memory | 14 KB | 7 KB (-50%) | 14 KB (identical) | 14 KB (identical) | 5.5 KB (-61%) |
| PWM Resolution | 16-bit (4 channels) | 16-bit (4 channels) | 16-bit (4 channels) | 16-bit (4 channels) | 10-bit (-37.5%) |
Diferenciadores clave
- Four 16-bit PWM channels on an 8-bit MCU (frente a PIC16F1503-I/ST)
- Drop-in compatible with extended temperature variant (frente a PIC16F1575-E/ST)
- Same TSSOP-14 footprint as the lower-Flash sibling (frente a PIC16F1574T-I/ST)
- Lower cost than PIC16F15356 family (frente a PIC16F15356-I/MV)
Notas de diseño
Place a 100nF decoupling capacitor within 5mm of the VDD pin and a 10uF bulk capacitor near the VSS pin. For PWM applications switching high-current loads, add a 1uF bypass in parallel with the 100nF to handle transient switching noise. Route all PWM output traces with controlled impedance and keep them away from the ICSPCLK/ICSPDAT pins (RB6/RB7) to avoid programming-time glitches.
The TSSOP-14, SOIC-14, and QFN-14 variants of PIC16F1575 have different peripheral pin mappings. Pin 1 on TSSOP-14 is RA3 but may map differently on QFN-14. Always re-verify your PCB layout against the datasheet pinout for the exact package suffix you ordered. Mixing -ST (TSSOP) and -JQ (QFN) variants without rechecking pinout is a common board bring-up failure.
The TSSOP-14 lead pitch is 0.65mm - verify your PCB manufacturer can fabricate this pitch. Most 4-layer and 2-layer prototype boards handle it without issue, but some low-cost 2-layer houses struggle. For hand-rework, consider ordering the SOIC-14 (-SL) variant as a backup, which has 1.27mm pitch for easier soldering.
Estimated: At 32MHz and 5V supply with all peripherals active, the PIC16F1575 draws approximately 8-10 mA. Power dissipation at full load is ~50 mW - well within TSSOP-14 thermal limits. For battery-powered designs, drop to 1MHz internal oscillator at 3.3V to reduce current to ~0.5 mA active and ~50 nA sleep.
Información de cumplimiento
Industrial temperature grade (-I suffix) is not AEC-Q100 automotive qualified. For automotive, consider PIC16F1575-E/ST extended temperature variant or contact Microchip for AEC-Q100 qualified parts.
