PIC24FJ32GA004-I/PT - 16-Bit 32MHz 32KB Flash MCU | Microchip
N.º de pieza: PIC24FJ32GA004-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.95 | $3,95 |
| 10 | $3.62 | $36,20 |
| 100 | $3.21 | $321,00 |
| 500 | $2.85 | $1.425,00 |
| 1.000 | $2.55 | $2.550,00 |
PIC24FJ32GA004-I/PT Descripción general
A microcontroller (MCU) is an integrated circuit containing a CPU core, non-volatile program memory (typically Flash), volatile working memory (SRAM), and a configurable set of peripherals such as ADCs, timers, and serial interfaces. PIC24F devices sit within Microchip's broader taxonomy of MCU -> 16-bit MCU -> PIC24 family -> PIC24F sub-family -> eXtreme Low Power tier. These 16-bit devices typically replace 8-bit PIC16/PIC18 designs when an application requires more computational headroom, larger addressable memory, or richer peripherals, while remaining easier than 32-bit ARM Cortex-M designs for simple control loops.
Key differentiating features include a 16 MIPS execution rate from the modified Harvard RISC core, hardware RTCC with calendar mode, a 16-bit parallel master port (PMP) on selected variants, and a Charge Time Measurement Unit (CTMU) for touch sensing and precise time measurement. Boundary-scan (JTAG) support simplifies in-system programming and on-board debug through the ICSP interface.
Architecturally, the PIC24FJ32GA004 uses a 16-bit modified-Harvard core with a 24-bit instruction word, enabling single-cycle most instructions and deterministic interrupt latency. The XLP technology integrates multiple power-saving modes (Sleep, Idle, Deep Sleep) and a wide operating voltage range that supports battery-backed and energy-harvesting designs. The device includes a 10-bit successive-approximation ADC and hardware CRC, which together reduce firmware overhead in sensor-interface and communications-handling tasks.
Typical applications span industrial sensing nodes, low-power remote control panels, handheld medical devices, USB-to-UART bridges, HVAC thermostats, sensor hubs, and portable consumer electronics. The wide 2.0V to 3.6V supply range also accommodates 2xAA and coin-cell powered designs where battery voltage varies over discharge.
When designing with this part, allocate the ICSP pins (PGECx/PGEDx) and ensure MCLR is properly biased for in-circuit programming. Choose the appropriate internal oscillator mode (Fast RC or 32.768 kHz) early in the design to balance power consumption against timing accuracy; the PLL configuration can then be selected to reach 32 MHz operation.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, helping procurement and firmware teams evaluate the PIC24FJ32GA004-I/PT for both new designs and legacy replacements.
Alternativas directas para PIC24FJ32GA004-I/PT — 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 PIC24FJ32GA004-I/PT (mismo factor de forma y huella) — difiere en ADC, Program Memory (Flash), Core Architecture, Timers, Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ64GA004-I/PT
✅ Sustitución directa✓ En stock
$3.3 / unidad
Ver hoja de datos →PIC24FJ64GB004-I/PT
✅ Sustitución directa✓ En stock
$3.3 / unidad
Ver hoja de datos →PIC24FJ32GA004-E/PT
✅ Sustitución directa✓ En stock
$2.52 / unidad
Ver hoja de datos →PIC24FJ32GA004T-I/PT
✅ Sustitución directa✓ En stock
$2.4 / unidad
Ver hoja de datos →PIC24FJ16GA004-I/PT
✅ Sustitución directa✓ En stock
$2.1 / unidad
Ver hoja de datos →PIC24FJ32GA004-I/PT Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit RISC |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| Data Memory (SRAM) | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Digital I/O Pins | 35 |
| ADC | 10-bit, 13 channels |
| Timers | 5 x 16-bit (Timer1-Timer5) |
| UART Modules | 2 |
| SPI Modules | 2 |
| I2C Modules | 2 |
| Encapsulado | 44-pin TQFP (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Nivel MSL | 3 |
| In-Circuit Programming | ICSP / JTAG |
| Low-Power Technology | eXtreme Low Power (XLP) |
| Estado RoHS | Compliant |
Configuración de pines de PIC24FJ32GA004-I/PT
| Pin 1 | RP9/PMD3/RB9 — Remappable I/O or PMP data line |
| Pin 2 | RP10/PMD2/RB10 — Remappable I/O or PMP data line |
| Pin 3 | RP11/PMD1/RB11 — Remappable I/O or PMP data line |
| Pin 4 | RP12/PMD0/RB12 — Remappable I/O or PMP data line |
| Pin 5 | RP13/PMRD/RB13 — Remappable I/O or PMP read strobe |
| Pin 6 | RP14/PMWR/RB14 — Remappable I/O or PMP write strobe |
| Pin 7 | RP15/RB15 — Remappable I/O |
| Pin 8 | VDD — Positive supply voltage |
| Pin 9 | VSS — Ground reference |
| Pin 10 | OSCI/CLKI/RA3 — Crystal input or remappable I/O |
| Pin 11 | OSCO/CLKO/RA2 — Crystal output or remappable I/O |
| Pin 12 | PGEC1/AN0/VREF+/CVREF+/RA0 — ICSP clock, analog input, or VREF+ |
| Pin 13 | PGED1/AN1/VREF-/RA1 — ICSP data, analog input, or VREF- |
| Pin 14 | PGEC2/SOSC1/RP0/RA4 — ICSP2 clock, secondary osc, or remappable I/O |
| Pin 15 | PGED2/SOSC2/RP1/RA5 — ICSP2 data, secondary osc, or remappable I/O |
| Pin 16 | RP2/SDA2/RA6 — Remappable I/O or I2C2 data |
| Pin 17 | RP3/SCL2/RA7 — Remappable I/O or I2C2 clock |
| Pin 18 | VSS — Ground reference |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | AN2/RP16/RB0 — Analog input or remappable I/O |
| Pin 21 | AN3/RP17/RB1 — Analog input or remappable I/O |
| Pin 22 | AN4/RP18/RB2 — Analog input or remappable I/O |
| Pin 23 | AN5/RP19/RB3 — Analog input or remappable I/O |
| Pin 24 | AN6/RP20/RB4 — Analog input or remappable I/O |
| Pin 25 | AN7/RP21/RB5 — Analog input or remappable I/O |
| Pin 26 | AN8/RP22/RB6 — Analog input or remappable I/O |
| Pin 27 | AN9/RP23/RB7 — Analog input or remappable I/O |
| Pin 28 | AN10/RP24/RB8 — Analog input or remappable I/O |
| Pin 29 | AN11/RP25/RB9 — Analog input or remappable I/O |
| Pin 30 | AN12/RP26/RB10 — Analog input or remappable I/O |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply voltage |
| Pin 33 | RP5/OC1/PMCS1/RC1 — Remappable I/O, output compare, or PMP chip select |
| Pin 34 | RP6/PMCS2/RC2 — Remappable I/O or PMP chip select |
| Pin 35 | RP7/PMD4/RC3 — Remappable I/O or PMP data line |
| Pin 36 | RP8/PMD5/RC4 — Remappable I/O or PMP data line |
| Pin 37 | INT0/RP12/RC5 — External interrupt or remappable I/O |
| Pin 38 | RP13/RC6 — Remappable I/O |
| Pin 39 | RP14/RC7 — Remappable I/O |
| Pin 40 | RP15/RC8 — Remappable I/O |
| Pin 41 | RP16/SDO2/RC9 — Remappable I/O or SPI2 data out |
| Pin 42 | RP17/SCK2/RC10 — Remappable I/O or SPI2 clock |
| Pin 43 | MCLR — Master clear reset input |
| Pin 44 | AVSS — Analog ground reference |
Aplicaciones típicas
PIC24FJ32GA004-I/PT es adecuado para 7 aplicacións: Industrial Sensor Hub, Portable Medical Devices, HVAC Thermostat Control, USB-to-UART Bridge Dongle, Battery-Powered IoT Edge Node, Consumer Remote Control Panels, Data Logging and Telemetry Module.
Industrial Sensor Hub
The PIC24FJ32GA004-I/PT is well suited to industrial sensor-hub nodes where multiple analog sensors must be sampled, conditioned, and forwarded to a host controller. Its 10-bit ADC with 13 input channels supports simultaneous temperature, pressure, and flow sensing, while the two UART and two SPI peripherals enable simultaneous host link and sensor front-end communication. The 2.0V to 3.6V supply range accommodates 24V industrial rails stepped down to 3.3V, and the -40C to +85C industrial temperature rating meets factory-floor requirements.
Recomendado
Portable Medical Devices
Battery-powered medical devices such as portable pulse oximeters, glucose meters, and handheld diagnostic tools benefit from the PIC24FJ32GA004-I/PT's eXtreme Low Power technology. Sleep current below 1 microamp enables multi-year battery life on coin cells, while the 32 MIPS performance handles real-time sensor DSP and LCD driving. The 44-pin TQFP package keeps the BOM compact for small form-factor enclosures, and the integrated RTCC with calendar mode supports time-stamped medical event logging.
Recomendado
HVAC Thermostat Control
The PIC24FJ32GA004-I/PT serves as the main control MCU in HVAC thermostats that drive relays, triacs, and character or graphic LCDs. Its 35 digital I/O pins provide ample capacity for multi-zone thermostat control, while the five 16-bit timers support accurate PWM for proportional valve control. The 16 MIPS performance easily handles PID loop calculation for temperature regulation, and the 32 KB Flash is sufficient for scheduling algorithms and user-interface state machines.
Recomendado
USB-to-UART Bridge Dongle
Although the PIC24FJ32GA004-I/PT lacks native USB, it can pair with an external USB-to-UART bridge IC such as the MCP2200 or MCP2221 to implement a compact USB-to-serial adapter. The MCU's two UART modules support simultaneous host and debug logging, and its 8 KB SRAM provides buffer space for protocol translation. The 44-pin TQFP package is well suited to dongle-form-factor designs with surface-mount assembly.
Recomendado
Battery-Powered IoT Edge Node
The PIC24FJ32GA004-I/PT is ideal for battery-powered IoT edge nodes that perform local sensor fusion and forward summaries over UART, SPI, or I2C. Its XLP modes with sub-microamp sleep currents enable multi-year battery life on 2xAA cells, while the 16 MIPS performance supports lightweight on-device DSP and protocol stacks. The wide 2.0V to 3.6V supply accommodates battery voltage decay over discharge, maximizing usable capacity.
Recomendado
Consumer Remote Control Panels
The PIC24FJ32GA004-I/PT provides ample processing headroom for IR or RF remote control panels with LCD displays and capacitive touch keys. Its CTMU peripheral enables capacitive touch sensing on multiple electrodes, while the 16-bit PMP interface can drive character or graphic LCDs. The 32 KB Flash supports multilingual menu systems and complex IR protocol generation, and the 8 KB SRAM buffers LCD frame updates.
Recomendado
Data Logging and Telemetry Module
The PIC24FJ32GA004-I/PT integrates 32 KB Flash and 8 KB SRAM, plus EEPROM emulation, making it suitable for stand-alone data loggers and telemetry modules. Its two UART modules allow simultaneous GPS input and cellular modem uplink, while the 10-bit ADC samples analog sensor channels at up to 500 ksps. The RTCC with calendar mode time-stamps every log entry, and the XLP sleep modes extend battery life between samples.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ32GA004-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ64GA004-I/PT | PIC24FJ64GB004-I/PT | PIC24FJ32GA004-E/PT | PIC24FJ16GA004-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Flash Program Memory | 32 KB | 64 KB | 64 KB | 32 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| USB Support | No | No | USB 2.0 full-speed | No | No |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Operating Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Price (qty 100, USD) | 3.21 | 4.10 | 4.85 | 3.95 | 2.90 |
Diferenciadores clave
- Highest memory in same package family (frente a PIC24FJ16GA004-I/PT)
- Pure general-purpose design without USB overhead (frente a PIC24FJ64GB004-I/PT)
- Industrial temperature grade matches the most common spec (frente a PIC24FJ32GA004-E/PT)
Notas de diseño
Estimated: at 32 MHz operation with all peripherals active, the PIC24FJ32GA004-I/PT typically draws approximately 15 mA at 3.3V. For battery-powered designs, switch the MCU to XLP Sleep mode between sensor samples; this drops current below 1 uA. Decoupling must include a 100 nF ceramic capacitor placed within 5 mm of each VDD/VSS pair to suppress switching transients. For analog accuracy, place a separate 10 uF bulk capacitor on AVDD if the device is used with the ADC at full conversion rate.
Route the ICSP programming pins (PGECx/PGEDx) and MCLR to a 6-pin or 10-pin header that is accessible even after final assembly. According to the Microchip datasheet, an RC delay is recommended on MCLR with a typical 10 kohm pull-up and 100 nF to ground. For best ADC accuracy, route analog signals (ANx pins) away from high-frequency digital lines, and provide a dedicated ground pour under the analog section tied to AVSS.
Do not confuse the PIC24FJ32GA004-I/PT (44-pin TQFP) with the smaller PIC24FJ32GA002-I/SO (28-pin SOIC) or PIC24FJ32GA002-I/SP (28-pin SPDIP); these are NOT pin-compatible and require different PCB layouts. Also, ensure the CONFIG register bits for oscillator selection are set before applying external clocks to OSCI; an improperly configured PLL can prevent the part from starting. Always check the silicon errata document for the PIC24FJ64GA004 family on the Microchip website before finalizing firmware.
Información de cumplimiento
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications, migrate to AEC-Q100 qualified members of the PIC24F family.