PIC24FJ32GA002-E/SS - 16-bit 32KB Flash MCU, 28-SSOP | Microchip
N.º da peça: PIC24FJ32GA002-E/SS ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.95 | $4,95 |
| 10 | $4.45 | $44,50 |
| 100 | $3.85 | $385,00 |
| 500 | $3.45 | $1.725,00 |
| 1.000 | $3.1 | $3.100,00 |
PIC24FJ32GA002-E/SS Visão geral
A microcontroller (MCU) is a single-chip computer containing a processor core, non-volatile program memory (typically Flash), volatile working memory (SRAM), and integrated peripherals such as timers, communication interfaces, and analog blocks. The PIC24F family from Microchip uses a 16-bit modified Harvard RISC architecture with 16 working registers and a hardware multiplier, classified under the hypernyms MCU -> microcontroller -> embedded processor -> semiconductor. The "FJ" prefix denotes the eXtreme Low Power (XLP) technology family, providing nanoWatt sleep currents for battery-powered designs.
Key features of the PIC24FJ32GA002-E/SS include 21 general-purpose I/O pins, two UART modules, two SPI modules, two I2C modules, a 10-bit ADC with up to 13 input channels, five 16-bit timers, a real-time clock and calendar (RTCC), and a charge time measurement unit (CTMU) for capacitive touch sensing. The -E temperature grade supports an extended range of -40 °C to +125 °C, suiting industrial and automotive-grade environments.
The core combines a 16-bit ALU with a C compiler-friendly instruction set, providing deterministic interrupt latency and 16 MIPS throughput at 32 MHz. The integrated nanoWatt XLP technology enables typical sleep currents below 1 µA, while the peripheral pin select (PPS) feature allows flexible remapping of digital peripherals to any I/O pin, simplifying PCB routing for complex designs.
Typical applications include industrial sensor interfaces, low-power remote controls, capacitive touch user interfaces, USB-to-UART bridges, and portable medical or fitness devices. The wide operating voltage and rich analog/digital peripheral mix also make it suitable for home appliances and human-machine interface (HMI) panels.
Designers should evaluate the trade-off between Flash size and RAM (32 KB / 8 KB) versus larger PIC24FJ devices such as the 64 KB / 8 KB PIC24FJ64GA002 when firmware growth is anticipated. For new designs without legacy constraints, the PIC24FJ32GA002-E/SO variant in SOIC-28 may be preferred for hand-prototyping due to easier soldering.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found on a single manufacturer page or distributor listing, helping engineers rapidly compare and qualify the part.
Alternativas drop-in para PIC24FJ32GA002-E/SS — 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 PIC24FJ32GA002-E/SS (mesmo formato e footprint) — diferindo em Package, Operating Temperature, ADC, Core Architecture, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC24FJ32GA002-I/SS
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC24FJ32GA002T-I/SS
✅ Drop-In✓ Em estoque
$2.2 / unidade
Ver ficha técnica →PIC24FJ16GA002-E/SS
✅ Drop-In✓ Em estoque
$1.85 / unidade
Ver ficha técnica →PIC24FJ64GA002-E/SS
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC24FJ32GA002-E/SS Classificações máximas e características elétricas
| Core Architecture | PIC24F 16-bit RISC |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| RAM | 8 KB (8192 bytes) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, up to 13 channels |
| UART Modules | 2 |
| SPI Modules | 2 |
| I2C Modules | 2 |
| Timers | 5 x 16-bit |
| PWM Channels | 5 (16-bit resolution) |
| Temperature Grade | -40 °C to +125 °C (Extended -E) |
| Encapsulamento | 28-pin SSOP (0.209 inch / 5.30 mm body) |
| Tipo de montagem | Surface Mount |
| Special Features | nanoWatt XLP, RTCC, CTMU, Peripheral Pin Select |
Configuração de pinos do PIC24FJ32GA002-E/SS
| Pino 1 | RA2 — Port A bit 2 (analog/digital I/O) |
| Pino 2 | RA3 — Port A bit 3 (analog/digital I/O) |
| Pino 3 | RA4 — Port A bit 4 (analog/digital I/O) |
| Pino 4 | MCLR — Master Clear (reset, active low) |
| Pino 5 | VSS — Ground reference |
| Pino 6 | RA7 — Port A bit 7 (analog/digital I/O, also OSC1) |
| Pino 7 | RA8 — Port A bit 8 (analog/digital I/O, also OSC2) |
| Pino 8 | RB0 — Port B bit 0 (PPS-capable I/O) |
| Pino 9 | RB1 — Port B bit 1 (PPS-capable I/O) |
| Pino 10 | RB2 — Port B bit 2 (PPS-capable I/O) |
| Pino 11 | RB3 — Port B bit 3 (PPS-capable I/O) |
| Pino 12 | RB4 — Port B bit 4 (PPS-capable I/O) |
| Pino 13 | RB5 — Port B bit 5 (PPS-capable I/O) |
| Pino 14 | RB6 — Port B bit 6 (ICS programming clock) |
| Pino 15 | RB7 — Port B bit 7 (ICS programming data) |
| Pino 16 | VSS — Ground reference (second VSS pin) |
| Pino 17 | VDD — Positive supply (2.0 V to 3.6 V) |
| Pino 18 | RB8 — Port B bit 8 (PPS-capable I/O) |
| Pino 19 | RB9 — Port B bit 9 (PPS-capable I/O) |
| Pino 20 | RB10 — Port B bit 10 (PPS-capable I/O) |
| Pino 21 | RB11 — Port B bit 11 (PPS-capable I/O) |
| Pino 22 | RC0 — Port C bit 0 (analog/digital I/O) |
| Pino 23 | RC1 — Port C bit 1 (analog/digital I/O) |
| Pino 24 | RC2 — Port C bit 2 (analog/digital I/O) |
| Pino 25 | RA0 — Port A bit 0 (analog/digital I/O) |
| Pino 26 | RA1 — Port A bit 1 (analog/digital I/O) |
| Pino 27 | AVSS — Analog ground |
| Pino 28 | AVDD — Analog positive supply |
Aplicações típicas
PIC24FJ32GA002-E/SS é adequado para 6 aplicaçãos: Industrial Sensor Interfaces, Low-Power Remote Controls, Capacitive Touch User Interfaces, USB-to-UART Bridge Dongles, Portable Medical and Fitness Devices, Home Appliance HMI Panels.
Industrial Sensor Interfaces
The PIC24FJ32GA002-E/SS fits industrial sensor interface boards because of its 10-bit ADC with up to 13 input channels, 21 GPIO pins, and 2.0 V to 3.6 V operation tolerant of 24 V industrial rails after regulation. Its 16 MIPS throughput runs PID loops and MODBUS framing in real time, and the nanoWalt XLP sleep modes below 1 µA enable 4-20 mA loop-powered transmitters that survive battery backup. Five 16-bit timers handle rate measurement and PWM actuator drive. Compared with 8-bit MCUs, the 16-bit core delivers tighter math precision for temperature and pressure conversions in the same 28-SSOP footprint.
Recomendado
Low-Power Remote Controls
Battery-powered remote controls benefit from the PIC24FJ32GA002-E/SS nanoWalt XLP technology that drops sleep current under 1 µA, allowing a CR2032 cell to last years. The 32 KB Flash holds RF protocol stacks and IR encoding tables, while the 8 KB RAM buffers multiple button events. Two UART/SPI/I2C peripherals support sub-GHz transceivers such as the CC1101, and five PWM channels can drive LED backlights and vibration motors. Compared to 32-bit Cortex-M0+ parts, the PIC24F delivers comparable sleep performance at lower cost in the 28-SSOP footprint.
Recomendado
Capacitive Touch User Interfaces
Capacitive touch keypads and sliders leverage the PIC24FJ32GA002-E/SS integrated CTMU (Charge Time Measurement Unit), which measures capacitance changes on any GPIO pin without an external touch IC. Combined with 32 KB Flash to run mTouch firmware libraries and 21 I/O pins to drive 12-16 touch electrodes, the part replaces dedicated touch controllers in appliances and consumer electronics. The 10-bit ADC handles proximity sensing, and RTCC powers wake-on-touch scheduling. The extended -40 °C to +125 °C temperature grade ensures reliable touch performance in outdoor kiosks.
Recomendado
USB-to-UART Bridge Dongles
USB-to-UART bridge dongles use the PIC24FJ32GA002-E/SS for its two UART modules and 32 KB Flash to run USB CDC class drivers, though an external USB transceiver such as the MCP2200 or MCP2221 is typically paired. The 16 MIPS throughput sustains 1 Mbaud serial throughput without bottlenecking, and 8 KB RAM buffers several KB of bidirectional traffic. The 28-SSOP package fits inside USB-stick enclosures. Compared to dedicated bridge ICs, this approach allows custom command-set extensions and firmware OTA updates via the same UART.
Recomendado
Portable Medical and Fitness Devices
Portable medical and fitness devices leverage the PIC24FJ32GA002-E/SS extended temperature range (-40 °C to +125 °C), low-power nanoWalt XLP modes, and 10-bit ADC for biosensor signal conditioning. Heart-rate, SpO2, and pedometer algorithms fit within 32 KB Flash, while 8 KB RAM supports step history and BLE buffering. Two I2C buses connect to accelerometers and optical sensors, and the RTCC tracks timestamps without waking the CPU. The 28-SSOP footprint simplifies integration into wristband PCBs compared to QFN-packaged 32-bit alternatives.
Recomendado
Home Appliance HMI Panels
Home appliance HMI panels, including washing machines, ovens, and induction cooktops, use the PIC24FJ32GA002-E/SS to drive 7-segment LED or character LCD displays via its five PWM channels and 21 I/O pins. The wide 2.0 V to 3.6 V supply tolerance survives rectified mains rails after regulation, while the extended temperature grade handles under-hood automotive and kitchen environments. Two SPI peripherals drive dot-matrix displays or external EEPROMs for user preferences, and the RTCC schedules delayed-start programs. Compared to 8-bit MCUs, the 16-bit core simplifies multi-tasking across motor, display, and sensor control loops.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC24FJ32GA002-E/SS — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC24FJ32GA002-I/SS | PIC24FJ32GA002T-I/SS | PIC24FJ32GA002-E/SO | PIC24FJ16GA002-E/SS | PIC24FJ64GA002-E/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SOIC (different land pattern) | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Temperature Grade | -40 to +125 °C (-E extended) | -40 to +85 °C (-I industrial) | -40 to +85 °C (-I industrial) | -40 to +125 °C (-E extended) | -40 to +125 °C (-E extended) | -40 to +125 °C (-E extended) |
| Maximum Clock | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| 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 |
| I/O Pins | 21 | 21 | 21 | 21 | 21 | 21 |
Principais diferenciais
- Extended -40 to +125 °C temperature grade in compact 28-SSOP (vs PIC24FJ32GA002-I/SS)
- Doubles Flash for firmware growth without PCB changes (vs PIC24FJ16GA002-E/SS)
- More Flash than needed when cost dominates (vs PIC24FJ64GA002-E/SS)
Notas de projeto
Place a 10 µF tantalum or ceramic bypass capacitor as close as possible to the VDD/AVDD pins (pins 17 and 28) and a 100 nF ceramic on each VDD pair. For nanoWatt XLP sleep modes, ensure no high-impedance floating analog inputs exceed 1 µA leakage by adding a 100 kΩ pull-down or by disabling unused ADC channels in firmware. The internal voltage regulator (DISVREG pin) must be tied properly per the datasheet to achieve the lowest sleep currents.
Route the ICSP programming pins (RB6/RB7) directly to a 5-pin header with no series resistors; Microchip programmers require direct access for in-circuit serial programming. Keep the crystal traces (RA7/RA8) short and symmetric, with the load capacitors (typically 15-33 pF) within 5 mm of the IC. Place a ground pour under and around the SSOP body to improve thermal dissipation and reduce EMI susceptibility on analog ADC traces.
Do not leave unused I/O pins floating - configure them as outputs low or inputs with internal pull-ups in firmware to avoid CMOS shoot-through and excess sleep current. The DISVREG pin must follow the datasheet connection diagram exactly (tie to VDD when using internal regulator, or to ground when using external 2.5 V supply). Failing to do so can prevent the part from entering nanoWalt sleep modes. Also verify all VSS/AVSS pins are connected, even if only one is used for the analog ground return.
When using the 10-bit ADC, add a small RC filter (1 kΩ + 100 nF) on each analog input to limit bandwidth to below the conversion rate and prevent aliasing. Use the dedicated AVDD/AVSS pins (28/27) for analog supply, and route digital signals away from analog traces. The peripheral pin select (PPS) feature lets you remap digital peripherals to clean I/O pins, avoiding noisy port pins adjacent to high-frequency switching nodes.
Informações de conformidade
RoHS and lead-free per Microchip product page; not AEC-Q100 qualified (extended temperature grade only, no automotive certification).
