PIC24FJ64GA705T-I/PT - 64KB Flash 16-bit MCU | Microchip 48-TQFP
N.º de pieza: PIC24FJ64GA705T-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.85 | $3,85 |
| 10 | $3.55 | $35,50 |
| 100 | $3.18 | $318,00 |
| 500 | $2.84 | $1.420,00 |
| 1.000 | $2.55 | $2.550,00 |
PIC24FJ64GA705T-I/PT Descripción general
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and integrated peripherals such as ADC, timers, communication interfaces and I/O pins. The PIC24F family sits in Microchip's 16-bit MCU portfolio, positioned above 8-bit PIC MCUs and below 32-bit ARM Cortex-M parts in both performance and code complexity. The PIC24FJ64GA705 belongs to the GA705 sub-family optimized for low-power and touch applications.
Key features of this device include six DMA channels for efficient data movement without CPU intervention, multiple UART/SPI/I2C interfaces, up to 40 I/O pins, and integrated peripherals for USB-less connectivity solutions. The CTMU (Charge Time Measurement Unit) enables capacitive touch button, slider, and proximity sensing applications. The 12-bit ADC with 200 ksps supports precision sensor reading across 14 analog channels, well-suited for environmental and process monitoring.
Architecturally, the PIC24FJ64GA705 uses a 16-bit modified Harvard architecture with a 24-bit instruction word, delivering 16 MIPS at 32 MHz. Its XLP technology enables nanoWatt sleep currents ideal for battery-powered applications. The internal voltage regulator and power-management circuitry allow operation across the full 2.0V-3.6V range with multiple idle and sleep modes selectable via firmware.
Typical applications include IoT edge sensor nodes, capacitive touch human-machine interfaces (HMIs), portable medical devices, industrial control panels, battery-powered remote controls, and low-power wireless sensor platforms. The combination of XLP, CTMU and rich peripherals makes it especially well-suited for touch-button interfaces on appliances, smart-home devices, and wearable electronics.
When designing with this MCU, ensure your compiler toolchain is MPLAB XC16 (or compatible), and budget Flash/RAM for the application plus bootloader. The 48-TQFP package requires standard 0.5 mm pitch PCB layout and offers easy hand-soldering or reflow assembly. Decoupling capacitors (100 nF plus bulk) must be placed within a few millimeters of the VDD pins for stable operation.
This page synthesizes real distributor pricing, drop-in package-compatible alternatives, and practical engineering considerations not found in the manufacturer datasheet alone, enabling faster component selection and BOM risk reduction.
Alternativas directas para PIC24FJ64GA705T-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 PIC24FJ64GA705T-I/PT (mismo factor de forma y huella) — difiere en Package, Program Memory (Flash), ADC, Operating Temperature, Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ64GA705-I/PT
✅ Sustitución directa✓ En stock
$2.41 / unidad
Ver hoja de datos →PIC24FJ64GA705-E/PT
✅ Sustitución directa✓ En stock
$2.21 / unidad
Ver hoja de datos →PIC24FJ128GA705-I/PT
✅ Sustitución directa✓ En stock
$2.83 / unidad
Ver hoja de datos →PIC24FJ256GA705-I/M4
✅ Sustitución directa✓ En stock
$3.55 / unidad
Ver hoja de datos →PIC24FJ64GA410-I/PT
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$4.15 / unidad
Ver hoja de datos →PIC24FJ64GA412-I/BG
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.95 / unidad
Ver hoja de datos →PIC24FJ64GA705T-I/PT Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit RISC |
| Instruction Word Width | 24-bit |
| Program Memory (Flash) | 64 KB (22K x 24) |
| Data Memory (RAM) | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| ADC | 12-bit, up to 14 channels, 200 ksps |
| Analog Comparators | 3 |
| CTMU (Capacitive Touch) | Yes |
| DMA Channels | 6 |
| I/O Pins | 40 |
| Encapsulado | 48-TQFP (7x7 mm), 0.5 mm pitch |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| Low-Power Technology | eXtreme Low Power (XLP) |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 |
| Estado RoHS | Compliant |
| ECC Flash | Yes |
Configuración de pines de PIC24FJ64GA705T-I/PT
| Pin 1 | RP15/PWM1H/PMD5/RA7 — Remappable I/O / PWM / Port A bit 7 |
| Pin 2 | RP8/PWM2L/PMD4/RA4 — Remappable I/O / PWM / Port A bit 4 |
| Pin 3 | RP9/PWM2H/PMD3/RA3 — Remappable I/O / PWM / Port A bit 3 |
| Pin 4 | RP10/PMD2/RA2 — Remappable I/O / Port A bit 2 |
| Pin 5 | RP11/PMD1/RA1 — Remappable I/O / Port A bit 1 |
| Pin 6 | RP0/SCL2/RA0 — Remappable I/O / I2C clock / Port A bit 0 |
| Pin 7 | VDD — Positive supply voltage (2.0V-3.6V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/RA9 — Crystal oscillator input or external clock / Port A bit 9 |
| Pin 10 | OSC2/CLKO/RA10 — Crystal oscillator output / Port A bit 10 |
| Pin 11 | RP1/SDA2/RB0 — Remappable I/O / I2C data / Port B bit 0 |
| Pin 12 | RP2/SCL1/RB1 — Remappable I/O / I2C clock / Port B bit 1 |
| Pin 13 | RP3/SDA1/RB2 — Remappable I/O / I2C data / Port B bit 2 |
| Pin 14 | RP4/PMD7/RB3 — Remappable I/O / PWM / Port B bit 3 |
| Pin 15 | RP5/PMD6/RB4 — Remappable I/O / PWM / Port B bit 4 |
| Pin 16 | VSS — Ground reference |
| Pin 17 | RP6/RB5 — Remappable I/O / Port B bit 5 |
| Pin 18 | RP7/RB6 — Remappable I/O / Port B bit 6 |
| Pin 19 | TMS/RP12/RB7 — JTAG TMS / Remappable I/O / Port B bit 7 |
| Pin 20 | TCK/RP13/RB8 — JTAG TCK / Remappable I/O / Port B bit 8 |
| Pin 21 | TDO/RP14/RB9 — JTAG TDO / Remappable I/O / Port B bit 9 |
| Pin 22 | TDI/RB10 — JTAG TDI / Port B bit 10 |
| Pin 23 | VCAP — Internal voltage regulator bypass capacitor |
| Pin 24 | VDD — Positive supply voltage (2.0V-3.6V) |
| Pin 25 | VSS — Ground reference |
| Pin 26 | RP16/RC0 — Remappable I/O / Port C bit 0 |
| Pin 27 | RP17/RC1 — Remappable I/O / Port C bit 1 |
| Pin 28 | RP18/RC2 — Remappable I/O / Port C bit 2 |
| Pin 29 | RP19/RC3 — Remappable I/O / Port C bit 3 |
| Pin 30 | RP20/RC4 — Remappable I/O / Port C bit 4 |
| Pin 31 | RP21/RC5 — Remappable I/O / Port C bit 5 |
| Pin 32 | AN12/RP26/RC6 — Analog input 12 / Remappable I/O / Port C bit 6 |
| Pin 33 | AN13/RP27/RC7 — Analog input 13 / Remappable I/O / Port C bit 7 |
| Pin 34 | AN14/RP28/RC8 — Analog input 14 / Remappable I/O / Port C bit 8 |
| Pin 35 | AN15/RP29/RC9 — Analog input 15 / Remappable I/O / Port C bit 9 |
| Pin 36 | RP22/RC10 — Remappable I/O / Port C bit 10 |
| Pin 37 | RP23/RC11 — Remappable I/O / Port C bit 11 |
| Pin 38 | RP24/RC12 — Remappable I/O / Port C bit 12 |
| Pin 39 | RP25/RC13 — Remappable I/O / Port C bit 13 |
| Pin 40 | VDD — Positive supply voltage (2.0V-3.6V) |
| Pin 41 | VSS — Ground reference |
| Pin 42 | AN0/RP30/RB0 — Analog input 0 / Remappable I/O / Port B bit 0 (alt) |
| Pin 43 | AN1/RP31/RB1 — Analog input 1 / Remappable I/O / Port B bit 1 (alt) |
| Pin 44 | AN2/RP32/RB2 — Analog input 2 / Remappable I/O / Port B bit 2 (alt) |
| Pin 45 | AN3/RP33/RB3 — Analog input 3 / Remappable I/O / Port B bit 3 (alt) |
| Pin 46 | AN4/RP34/RB4 — Analog input 4 / Remappable I/O / Port B bit 4 (alt) |
| Pin 47 | AN5/RP35/RB5 — Analog input 5 / Remappable I/O / Port B bit 5 (alt) |
| Pin 48 | MCLR/RB15 — Master Clear reset (active-low) / Port B bit 15 |
Aplicaciones típicas
PIC24FJ64GA705T-I/PT es adecuado para 7 aplicacións: Capacitive Touch Human-Machine Interface (HMI), Battery-Powered IoT Sensor Node, Industrial Process Monitoring Controller, Portable Medical Device Controller, Smart Home Hub and Edge Controller, Automotive Aftermarket Accessory Module, Consumer Electronics Remote Control.
Capacitive Touch Human-Machine Interface (HMI)
The PIC24FJ64GA705T-I/PT's integrated CTMU (Charge Time Measurement Unit) and 12-bit ADC make it purpose-built for capacitive touch user interfaces in appliances, consumer electronics, and industrial control panels. The CTMU measures charge timing on up to 14 touch electrodes with hardware-level noise immunity, enabling reliable touch button, slider, and proximity detection even in noisy industrial environments. Combined with XLP nanoWatt sleep modes drawing less than 100 nA in deep sleep, this MCU can run a touch interface for years on a single CR2032 coin cell. Reference designs from Microchip typically use 10-100 nF touch electrodes scanned every 8-32 ms via DMA-driven ADC sequencing. The 48-TQFP package provides enough GPIO for 16+ touch channels plus RGB LED feedback and a UART link to a host controller.
Recomendado
Battery-Powered IoT Sensor Node
For battery-powered IoT sensor nodes such as environmental monitors, smart agriculture sensors, and asset trackers, the PIC24FJ64GA705T-I/PT's eXtreme Low Power technology delivers standby currents below 1 uA with RTC running, enabling multi-year battery life on a 2xAA pack. The 16 MIPS performance at 32 MHz is sufficient for sensor-fusion algorithms, local decision logic, and BLE/Zigbee module handshaking via UART. The 12-bit ADC at 200 ksps handles multi-channel sensor reading for temperature, humidity, pressure, and gas sensors, while 6 DMA channels move ADC results to RAM without CPU wake-up. With 64KB Flash and 16KB RAM, developers can fit a lightweight RTOS or state-machine firmware plus OTA bootloader. The 2.0V-3.6V supply range accommodates discharging batteries down to brown-out threshold.
Recomendado
Industrial Process Monitoring Controller
The PIC24FJ64GA705T-I/PT's -40C to +85C industrial temperature range and 12-bit ADC at 200 ksps suit it for factory floor monitoring of analog process variables including temperature, pressure, flow, and 4-20 mA current loops. Three analog comparators enable hardware-level over/under-limit detection independent of firmware, useful for safety-critical alarm outputs. The 40 GPIO pins can drive status LEDs, accept digital sensor inputs, and interface with isolated RS-485 transceivers over UART for industrial bus integration. With 6 DMA channels, continuous ADC sampling does not burden the CPU, leaving MIPS available for control loop math and communication stack processing. The 48-TQFP package is widely accepted in industrial designs for its 0.5 mm pitch that balances assembly yield and hand-rework feasibility.
Recomendado
Portable Medical Device Controller
Portable medical devices such as blood pressure monitors, glucose meters, pulse oximeters, and nebulizers benefit from the PIC24FJ64GA705T-I/PT's combination of low power, integrated ADC, and reliable Flash with ECC. The 12-bit ADC with 200 ksps provides sufficient resolution for pulse oximetry and analog front-end conditioning, while XLP technology enables battery operation exceeding typical device shelf-life targets. ECC Flash protects against bit flips in long-lived medical equipment, supporting regulatory reliability expectations. The 16 MIPS performance is sufficient for display driving, keypad scanning, sensor fusion, and BLE-paired smartphone connectivity. Microchip offers IEC 60730 Class B safety libraries for PIC24F devices, simplifying functional safety certification for home-use medical devices.
Recomendado
Smart Home Hub and Edge Controller
Smart home edge controllers such as Zigbee/Z-Wave/Wi-Fi bridges, thermostat control boards, and HVAC zone controllers benefit from the PIC24FJ64GA705T-I/PT's peripheral richness including multiple UART/SPI/I2C interfaces for multi-protocol bridging. The 48-TQFP footprint provides 40 GPIO for relay drivers, sensor inputs, keypad scanning, and LED matrix driving. XLP technology allows the controller to maintain network presence at sub-mW average power while still waking within milliseconds to handle button presses or scheduled events. 64KB Flash accommodates ZCL/Zigbee PRO stack or Matter-ready application code; 16KB RAM supports message buffers for multiple concurrent protocol stacks. The device integrates cleanly with Microchip's WFI/WFE wireless modules.
Recomendado
Automotive Aftermarket Accessory Module
The PIC24FJ64GA705T-I/PT serves automotive aftermarket accessories such as alarm systems, remote start modules, TPMS receivers, dash cameras, and lighting controllers where its 16-bit core and rich peripherals balance cost against capability. While not AEC-Q100 qualified itself, designers pair it with PIC24F AEC-Q100 variants in the same 48-TQFP footprint (e.g., PIC24FJ64GA705-E/PT family) for in-cabin accessory modules. The 12-bit ADC reads battery voltage, temperature sensors, and analog switch inputs; comparators provide over-voltage/under-voltage detection for automotive 12V systems. CTMU enables touch-button dashboards and proximity-activated interior lighting. Six DMA channels keep CPU free for CAN-style messaging and protocol bridging.
Recomendado
Consumer Electronics Remote Control
Remote controls for TVs, set-top boxes, soundbars, and smart appliances benefit from the PIC24FJ64GA705T-I/PT's XLP technology, capacitive touch capability, and IR/Wireless protocol flexibility. The device typically runs on 2xAAA batteries for several years thanks to sub-microamp deep-sleep currents. CTMU enables modern touch-surface remote controls replacing mechanical buttons, while 40 GPIO support matrix keypads, LED indicators, and accelerometer wake-up. Multiple UART/SPI interfaces handle IR transmit, Bluetooth Low Energy module control, and optional Wi-Fi pairing. 64KB Flash fits gesture recognition libraries, voice command pre-processing, and IR code databases for universal remote functionality. The 48-TQFP package supports both automated SMD assembly and small-form-factor remote designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ64GA705T-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ64GA705-I/PT | PIC24FJ64GA705-E/PT | PIC24FJ128GA705-I/PT | PIC24FJ256GA705-I/M4 | PIC24FJ64GA410-I/PT | PIC24FJ64GA412-I/BG |
|---|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB | 64 KB | 64 KB | 128 KB | 256 KB | 64 KB | 64 KB |
| RAM | 16 KB | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB | 16 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 | 32 MHz / 16 MIPS |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging Format | Tape & Reel | Tray | Tray | Tray | Tray | Tray | Tray |
| Special Features | CTMU, XLP, 12-bit ADC | Same as this product | Same, extended temp | Same, 128KB Flash | Same, 256KB Flash | Adds USB 2.0 Full-Speed OTG | Adds USB 2.0 and advanced PWM |
| Unit Price (qty-1, approx) | $3.85 | $3.95 (tray) | $4.50 (extended temp) | $4.20 (128KB Flash) | $5.10 (256KB Flash) | $4.85 (adds USB) | $5.30 (adds USB, advanced PWM) |
Diferenciadores clave
- Integrated CTMU capacitive touch hardware (frente a PIC24FJ64GA004T-I/PT)
- 16 KB RAM versus 8 KB on PIC24FJ128GA705 (frente a PIC24FJ128GA705-I/PT)
- 6 DMA channels for offloaded peripheral transfers (frente a PIC24FJ16GA004-I/PT)
Notas de diseño
The PIC24FJ64GA705T-I/PT operates from 2.0V to 3.6V with an internal voltage regulator requiring a decoupling capacitor on the VCAP pin (pin 23). Place a 10 uF ceramic X7R capacitor within 5 mm of the VCAP pin to ground. Bulk decoupling on each VDD pin (7, 24, 40) should include a 100 nF ceramic plus 4.7-10 uF tantalum or ceramic bulk capacitor. For XLP sleep modes, ensure all unused I/O pins are configured as outputs low or inputs with internal pull-downs to minimize leakage current below 1 uA.
Place the 48-TQFP device on the top side of the PCB with decoupling capacitors within 5 mm of each VDD pin pair. Use a continuous ground plane under the IC for thermal dissipation and reference. Route analog signals (AN0-AN15) away from high-speed digital lines to minimize crosstalk into the 12-bit ADC. The MCLR pin (pin 48) requires a 10 kohm pull-up to VDD with a 100 nF capacitor to ground for noise immunity; omit the capacitor if using the internal MCLR reset. Crystal oscillator traces (OSC1/OSC2) should be kept short and surrounded by ground guard traces for stable operation.
Three common pitfalls to avoid: (1) Exceeding 3.6V on any VDD pin damages the internal regulator - add a TVS diode on VDD if the supply is from an external adapter. (2) The CTMU requires calibration routine execution at startup for accurate touch measurements; firmware must run the CTMU calibration sequence per datasheet. (3) Configuring remappable peripherals (RP pins) without unlocking the IOLOCK register via OSCCON writes will silently fail - use the __builtin_write_OSCCONL macro in XC16. Also note: the PIC24FJ64GA705T-I/PT is NOT AEC-Q100 qualified - use automotive-grade parts from the same family (with -E or -I/V suffixes and explicit AEC-Q100 marking) for in-vehicle applications.
The 48-TQFP package has a junction-to-ambient thermal resistance of approximately 50 C/W (estimated, depends on PCB copper area). At full 32 MHz operation across 2.0-3.6V, the device draws about 15 mA active current. For forced-air or enclosed designs without airflow, ensure at least 100 sq mm of copper pour connected to the GND pins for heat spreading. In sleep modes with RTC running, current drops to under 1 uA eliminating thermal concerns entirely. Industrial-grade -40C to +85C operation is supported without special thermal design beyond standard PCB layout practices.
Información de cumplimiento
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - use PIC24FJ64GA705-E/PT for extended temperature or contact Microchip for AEC-Q100 variants in the same family. Halogen-free and lead-free packaging confirmed via Microchip environmental compliance documents.
