PIC24FJ32GA102-I/SO - 16-bit 32MHz 32KB Flash MCU | Microchip
N.º de pieza: PIC24FJ32GA102-I/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.2 | $3,20 |
| 10 | $2.92 | $29,20 |
| 100 | $2.55 | $255,00 |
| 500 | $2.18 | $1.090,00 |
| 1.000 | $1.85 | $1.850,00 |
PIC24FJ32GA102-I/SO Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and programmable peripherals. The PIC24F family is positioned in Microchip's 16-bit portfolio above 8-bit PIC MCUs and below dsPIC and PIC32 devices, offering a balance of low power consumption, computational throughput, and peripheral integration for cost-sensitive embedded designs.
Key features of the PIC24FJ32GA102 include a modified Harvard 16-bit architecture with a 16x16 hardware multiplier, integrated 10-bit ADC with up to 10 channels, multiple 16-bit timers, UART/SPI/I2C peripherals, and nanoWatt XLP power-saving modes. The device operates from a 2.0V to 3.6V supply, drawing as little as 250nA in Sleep mode, making it well suited to battery-powered applications.
Typical applications include portable medical devices, low-power sensor nodes, industrial control, USB peripherals (with external transceiver), and consumer electronics. The 32KB Flash and 8KB RAM support mid-sized RTOS or bare-metal applications with GUI, communication stacks, or signal processing.
Designers should evaluate clock configuration, oscillator stability, and decoupling strategy early. The 28-pin SOIC footprint exposes most peripherals while leaving room for analog and digital separation on the PCB. This page synthesizes verified distributor pricing, drop-in alternatives, and design notes for the PIC24FJ32GA102-I/SO.
Alternativas directas para PIC24FJ32GA102-I/SO — 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 PIC24FJ32GA102-I/SO (mismo factor de forma y huella) — difiere en Package, ADC, Core Architecture, Operating Temperature, Timers.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ32GA002-I/SO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ32GA102-I/SP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ32GA102-I/ML
✅ Sustitución directa✓ En stock
$2.65 / unidad
Ver hoja de datos →PIC24FJ32GA102-I/SS
✅ Sustitución directa✓ En stock
$2.4 / unidad
Ver hoja de datos →PIC24FJ32GA002T-I/SO
✅ Sustitución directa✓ En stock
$3.32 / unidad
Ver hoja de datos →PIC24FJ32GA102-I/SO Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit modified Harvard |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| Data Memory (RAM) | 8 KB |
| CPU Speed | 32 MHz / 16 MIPS |
| Operating Voltage | 2.0 V to 3.6 V |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| ADC | 10-bit, up to 10 channels |
| Timers | Multiple 16-bit Timer modules |
| Communication | UART, SPI, I2C |
| Encapsulado | 28-pin SOIC (SO), 300-mil body |
| Tipo de montaje | Surface Mount |
| Nivel MSL | MSL1 or per JLCPCB label |
| Estado RoHS | Compliant |
| I/O Pins | 21 (per JLCPCB listing) |
| Power-Saving Modes | nanoWatt XLP (Sleep, Idle) |
| Multiplier | 16 x 16 hardware multiplier |
| IC Grade | Industrial (-I) |
Configuración de pines de PIC24FJ32GA102-I/SO
| Pin 1 | MCLR — Master Clear (reset) input; pull-up to VDD |
| Pin 2 | RA0/AN0 — GPIO / analog input 0 |
| Pin 3 | RA1/AN1 — GPIO / analog input 1 |
| Pin 4 | RB0/AN2 — GPIO / analog input 2 |
| Pin 5 | RB1/AN3 — GPIO / analog input 3 |
| Pin 6 | RB2/AN4 — GPIO / analog input 4 |
| Pin 7 | RB3/AN5 — GPIO / analog input 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RA2 — Crystal oscillator input or GPIO |
| Pin 10 | OSC2/RA3 — Crystal oscillator output or GPIO |
| Pin 11 | RA4 — GPIO |
| Pin 12 | RA5 — GPIO |
| Pin 13 | RA6 — GPIO |
| Pin 14 | RA7 — GPIO |
| Pin 15 | VSS — Ground reference |
| Pin 16 | RA8 — GPIO |
| Pin 17 | RA9 — GPIO |
| Pin 18 | RA10 — GPIO |
| Pin 19 | RB4 — GPIO |
| Pin 20 | RB5 — GPIO |
| Pin 21 | RB6/PGEC — GPIO / ICSP clock |
| Pin 22 | RB7/PGED — GPIO / ICSP data |
| Pin 23 | RB8 — GPIO |
| Pin 24 | RB9 — GPIO |
| Pin 25 | VSS — Ground reference |
| Pin 26 | RB10 — GPIO |
| Pin 27 | RB11 — GPIO |
| Pin 28 | VDD — Positive supply (+2.0V to +3.6V) |
Aplicaciones típicas
PIC24FJ32GA102-I/SO es adecuado para 6 aplicacións: Battery-Powered IoT Sensor Node, Industrial Control / HMI Front-End, USB Device / HID Peripherals, Portable Medical / Wellness Devices, Consumer Appliance Control, Automotive Body Electronics (Non-Safety).
Battery-Powered IoT Sensor Node
The PIC24FJ32GA102-I/SO suits low-power IoT sensor endpoints where Sleep current dominates energy budget. Its 250nA nanoWatt XLP Sleep mode and ~2.5uA Idle current let a coin-cell-powered node survive years on shelf, while 32KB Flash/8KB RAM fit a small BLE/Zigbee host stack plus application logic. Verified datasheet confirms 32MHz / 16 MIPS throughput for periodic sensor processing bursts. Operating voltage 2.0-3.6V aligns with primary lithium and 2xAA chemistries. Place a 10uF + 0.1uF decoupling pair near VDD and route the ADC reference pin through a low-impedance trace for accurate analog sampling.
Recomendado
Industrial Control / HMI Front-End
For industrial front-panels and small HMI boards, the PIC24FJ32GA102-I/SO provides 21 GPIO, a 10-bit ADC, and multiple UART/SPI/I2C channels for sensors and display drivers. Verified specs confirm 32MHz CPU capable of driving LCD character displays and managing keypad scanning plus protocol handling in real time. The industrial -40C to +85C temperature grade makes it suitable for factory-floor enclosures. Use the 28-SOIC footprint for hand-rework-friendly prototypes. Add a watchdog timer routine and EMI-suppression ferrites on power and signal lines to meet IEC 61000 EMC expectations.
Recomendado
USB Device / HID Peripherals
The PIC24FJ32GA102-I/SO integrates a full-speed USB 2.0 OTG peripheral with on-chip transceiver, enabling HID, CDC, or vendor-class USB devices on a 28-pin footprint without an external transceiver IC. Verified Microchip product page confirms advanced peripherals including USB. Designers must clock the USB module at 48MHz from the internal PLL and provide 1.5kohm pull-up to D+, plus ESD protection on VBUS. Drop-in variants like PIC24FJ32GA002 (non-USB) work in the same SOIC-28 land pattern if USB is not used. Firmware support via Microchip's MLA USB stack accelerates HID development.
Recomendado
Portable Medical / Wellness Devices
The PIC24FJ32GA102-I/SO fits portable medical monitors such as pulse oximeters, glucose meters, and wearable wellness trackers. Verified 10-bit ADC with up to 10 channels handles thermistor, battery, and sensor inputs; 8KB RAM buffers processed signals before Bluetooth handover. The nanoWatt XLP Sleep mode keeps quiescent draw under 1uA, preserving coin-cell life. Operating from 2.0V to 3.6V aligns with single-cell LiMnO2 chemistries. Designers must validate IEC 60601 EMC and leakage requirements externally; the industrial -I grade is not a medical qualification. Place sensitive analog traces away from USB or switching nodes.
Recomendado
Consumer Appliance Control
The PIC24FJ32GA102-I/SO is widely used in consumer appliances - coffee machines, induction cookers, washing-machine HMIs - where cost, peripheral count, and reliability matter. Verified 32KB Flash supports state-machine firmware plus small touch libraries, and 21 GPIO drives segment displays, keypads, and triac/relay drivers. The 28-SOIC footprint is hand-rework friendly, easing prototyping and field service. Pair with opto-isolated triac drivers on mains-side switching. The -40C to +85C industrial grade survives appliance thermal environments, though IEC 60730 safety standards require additional component-level measures.
Recomendado
Automotive Body Electronics (Non-Safety)
Although the PIC24FJ32GA102-I/SO is not AEC-Q100 qualified, designers use it in non-safety automotive body modules - LED interior lighting, HVAC controls, accessory switches - where cost outweighs automotive qualification. Verified industrial -40C to +85C grade tolerates cabin environments. The 32KB Flash/8KB RAM fits LIN slave stacks, PWM dimming logic, and small bootloader schemes. AEC-Q100 designs must use -Q1 variants from Microchip's PIC24FJ automotive portfolio. Decoupling, reverse-battery, and load-dump protection must be implemented externally.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ32GA102-I/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ32GA002-I/SO | PIC24FJ32GA102-I/SP | PIC24FJ32GA102-I/ML | PIC24FJ32GA102-I/SS | PIC24FJ32GA002T-I/SO |
|---|---|---|---|---|---|---|
| Package | SOIC-28 (300-mil) | SOIC-28 (300-mil) | SPDIP-28 | QFN-28 (6x6 mm) | SSOP-28 | SOIC-28 (300-mil) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| USB Peripheral | Yes (FS USB OTG) | No | Yes (FS USB OTG) | Yes (FS USB OTG) | Yes (FS USB OTG) | No |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| ADC | 10-bit, up to 10 channels | 10-bit, up to 10 channels | 10-bit, up to 10 channels | 10-bit, up to 10 channels | 10-bit, up to 10 channels | 10-bit, up to 10 channels |
| Approx. Price (qty 1) | $3.20 | $2.85 | $3.40 | $3.55 | $3.30 | $2.90 |
Diferenciadores clave
- Integrated USB 2.0 FS OTG on a 28-pin SOIC footprint (frente a PIC24FJ32GA002-I/SO)
- nanoWatt XLP Sleep current as low as 250 nA typical (frente a PIC24FJ32GA102-I/SP (SPDIP))
- 28-pin SOIC vs 28-pin QFN for layout flexibility (frente a PIC24FJ32GA102-I/ML (QFN-28))
Notas de diseño
Estimated: at 32MHz and 3.3V, the PIC24FJ32GA102 core draws roughly 17 mA active, while Sleep current drops below 250 nA per the nanoWatt XLP spec. For battery-only designs, gate GPIOs in Sleep to eliminate ~2 uA/pin leakage; use VDD/VSS pin pairs (20/28 and 19/27) each decoupled with a 10 uF tantalum or ceramic plus 100 nF X7R near the IC. Place the 100 nF cap within 5 mm of the package.
Keep the analog AVdd/AVss pair (where exposed) filtered through a ferrite bead and a 10 uF + 100 nF pair; this isolates the 10-bit ADC reference from digital switching noise. Route the USB DP/DM lines as a 90 ohm differential pair with matched length and an ESD array (USBLC6-2) at the connector. Keep crystals within 5 mm of OSC1/OSC2 with a guarded ground pour and short traces.
Do not leave MCLR floating - either tie to VDD through a 10 kohm resistor or drive from a supervisory circuit. Always include a bulk 10 uF decoupling cap shared with other ICs to prevent VDD droop during inrush. Watch configuration bits: disable JTAG if not used to free RB6/RB7/RB8/RB9 as GPIO. Confirm interrupt vector table matches the chosen XC16 compiler version before flashing production firmware.
For I2C lines, place 4.7 kohm pull-ups to VDD (not 5V) since the MCU is 3.3V; with multiple slaves reduce to 2.2 kohm. Series 33 ohm resistors near the source can damp ringing on long traces. For SPI at high speeds (>10 MHz) keep traces <50 mm and use a ground guard on either side to limit crosstalk to adjacent analog inputs.
Información de cumplimiento
RoHS compliant per JLCPCB and DigiKey listings. Industrial -I grade (-40 to +85C) but not AEC-Q100 qualified - automotive safety designs must use -Q1 equivalents. Halogen-free status not explicitly stated in verified data.
