PIC24FJ64GA702T-I/SS - 16-bit 32MHz 64KB Flash MCU | Microchip
N.º de pieza: PIC24FJ64GA702T-I/SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.25 | $3,25 |
| 10 | $2.92 | $29,20 |
| 100 | $2.55 | $255,00 |
| 500 | $2.28 | $1.140,00 |
| 1.000 | $2.05 | $2.050,00 |
| 3.000 | $1.85 | $5.550,00 |
PIC24FJ64GA702T-I/SS Descripción general
A 16-bit microcontroller (MCU) is a microprocessor that uses a 16-bit data path and instruction word, offering higher arithmetic precision, larger linear address spaces, and richer peripheral integration than 8-bit devices. Within the taxonomy MCU -> 16-bit MCU -> PIC24F family -> eXtreme Low Power subfamily, this part is targeted at battery-powered and energy-harvesting applications where MIPS-per-milliwatt efficiency matters more than absolute performance. The PIC24F architecture introduces hardware Multiply/Divide and DSP instructions, making it suitable for sensor-fusion and signal-conditioning tasks that exceed 8-bit MCU capability but do not justify ARM Cortex-M0 cost.
Key features include 64 KB self-programmable Flash with error-correcting code (ECC), a 16 KB SRAM data memory, up to 21 general-purpose I/O pins, three 16-bit timers, a 32-bit RTCC timer, and a peripheral pin-select (PPS) remapping engine. The CTMU enables capacitive touch sensing on any analog-capable pin without external components, while the 12-bit 200 ksps ADC supports both single-ended and differential conversions. The eXtreme Low Power (XLP) technology delivers sub-microamp sleep currents suitable for IoT edge-node battery life targets measured in years.
From an architecture standpoint, the PIC24FJ64GA702T-I/SS uses a modified Harvard structure with separate program and data buses to the Flash and SRAM arrays, enabling simultaneous instruction fetch and data access. The 32 MHz maximum core clock (8 MHz FRC plus 4x PLL) is paired with a configurable peripheral bus clock divider for active and idle power scaling. Built-in voltage regulation with a wide 2.0 V to 3.6 V supply range allows direct Li-ion or 2x AA battery operation.
Typical applications include IoT sensor nodes, capacitive touch user interfaces, low-power wireless sensor hubs, portable medical monitors, and battery-powered industrial data loggers. The 28-pin SSOP footprint is ideal for compact hand-held enclosures where PCB real estate is constrained. For designs that require greater memory or additional peripherals, the PIC24FJ family scales up to 256 KB Flash in 44-pin and 48-pin packages within the same software ecosystem.
When designing with this device, ensure the supply decoupling network follows Microchip's reference: a 10 uF bulk tantalum or ceramic capacitor plus a 0.1 uF ceramic placed within 5 mm of VDD. For capacitive touch sensing, dedicate one ADC channel and the CTMU per electrode, and reserve adequate Flash for the mTouch library. Programming is supported through MPLAB X IDE with the XC16 compiler, and the device is in-circuit serial programmable (ICSP) via PGEDx/PGECx pins.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes for the PIC24FJ64GA702T-I/SS not aggregated on the manufacturer product page.
Alternativas directas para PIC24FJ64GA702T-I/SS — 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 PIC24FJ64GA702T-I/SS (mismo factor de forma y huella) — difiere en ADC, Operating Temperature, Package, Timers, MSL Level.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ64GA702T-I/SO
✅ Sustitución directa✓ En stock
$2.14 / unidad
Ver hoja de datos →PIC24FJ64GA702-I/MV
✅ Sustitución directa✓ En stock
$1.38 / unidad
Ver hoja de datos →PIC24FJ64GA702-E/SO
✅ Sustitución directa✓ En stock
$2.41 / unidad
Ver hoja de datos →PIC24FJ128GA702T-I/SO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ64GA102T-I/SS
✅ Sustitución directa✓ En stock
$2.65 / unidad
Ver hoja de datos →PIC24FJ64GA202T-I/MM
✅ Sustitución directa✓ En stock
$2.45 / unidad
Ver hoja de datos →PIC24FJ64GA702T-I/SS Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit modified Harvard |
| Program Memory (Flash) | 64 KB (22K x 24 instructions), ECC |
| Data Memory (SRAM) | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Supply Voltage Range | 2.0 V to 3.6 V |
| ADC | 12-bit, up to 200 ksps, up to 14 analog channels |
| Comparators | 3 analog comparators |
| CTMU (Touch) | Yes - mTouch capacitive touch sensing |
| Timers | 3 x 16-bit timers + 32-bit RTCC |
| Communication Interfaces | UART, SPI, I2C (peripheral pin-select remappable) |
| GPIO | Up to 21 general-purpose I/O |
| Temperatura de funcionamiento | -40 C to +85 C (Industrial, I grade) |
| Encapsulado | 28-pin SSOP (5.30 mm body) |
| Tipo de montaje | Surface Mount |
| Programming | ICSP (PGEDx/PGECx) via MPLAB X / XC16 |
| Estado RoHS | Compliant |
Configuración de pines de PIC24FJ64GA702T-I/SS
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0 — Port A bit 0 / analog AN0 / RP |
| Pin 3 | RA1 — Port A bit 1 / analog AN1 / RP |
| Pin 4 | RB0 — Port B bit 0 / analog AN2 / RP |
| Pin 5 | RB1 — Port B bit 1 / analog AN3 / RP |
| Pin 6 | RB2 — Port B bit 2 / analog AN4 / RP |
| Pin 7 | RB3 — Port B bit 3 / analog AN5 / RP |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input / CLKI |
| Pin 10 | OSC2 — Crystal oscillator output / CLKO |
| Pin 11 | RB4 — Port B bit 4 / analog AN6 / RP |
| Pin 12 | RB5 — Port B bit 5 / analog AN7 / RP |
| Pin 13 | RB6 — Port B bit 6 / PGEC1 / ICD clock |
| Pin 14 | RB7 — Port B bit 7 / PGED1 / ICD data |
| Pin 15 | RA2 — Port A bit 2 / analog AN8 / RP |
| Pin 16 | RA3 — Port A bit 3 / analog AN9 / RP |
| Pin 17 | RA4 — Port A bit 4 / analog AN10 / RP |
| Pin 18 | AVDD — Analog supply voltage |
| Pin 19 | AVSS — Analog ground |
| Pin 20 | RA5 — Port A bit 5 / analog AN11 / RP |
| Pin 21 | RC0 — Port C bit 0 / analog AN12 / RP |
| Pin 22 | RC1 — Port C bit 1 / analog AN13 / RP |
| Pin 23 | RC2 — Port C bit 2 / analog AN14 / RP |
| Pin 24 | RC3 — Port C bit 3 / analog AN15 / RP |
| Pin 25 | RC4 — Port C bit 4 / RP |
| Pin 26 | RC5 — Port C bit 5 / RP |
| Pin 27 | RC6 — Port C bit 6 / RP |
| Pin 28 | VDD — Digital supply voltage |
Aplicaciones típicas
PIC24FJ64GA702T-I/SS es adecuado para 6 aplicacións: IoT Sensor Node / Edge Telemetry, Capacitive Touch User Interface, Portable Medical / Health Monitor, Battery-Powered Industrial Data Logger, Low-Power Wireless Sensor Hub, Smart Home Sensor / Controller.
IoT Sensor Node / Edge Telemetry
The PIC24FJ64GA702T-I/SS is well-suited for low-power IoT sensor nodes: its 32 MHz PIC24F core delivers 16 MIPS for sensor-fusion math while eXtreme Low Power technology keeps sleep current in the sub-microamp range, enabling multi-year coin-cell battery life. The 12-bit 200 ksps ADC with up to 14 channels digitizes temperature, humidity, and analog sensor outputs simultaneously, while the 16 KB SRAM buffers protocol payloads before BLE/LoRa transmission. Its 64 KB ECC Flash stores the full firmware image plus over-the-air update staging area. The 2.0-3.6 V supply range accepts 2x AA alkaline cells directly without a boost converter.
Recomendado
Capacitive Touch User Interface
For capacitive touch panels, the PIC24FJ64GA702T-I/SS integrates the CTMU (Charge Time Measurement Unit) which, paired with the 12-bit ADC, supports up to 14 touch electrodes without external touch-controller ICs - cutting BOM cost by 30-50% versus discrete solutions. Microchip's mTouch library provides ready-to-use firmware for sliders, wheels, and matrix keypads, executing touch scans in under 1 ms per cycle. The 16 MIPS core runs both the touch algorithm and the application logic concurrently, while eXtreme Low Power idle keeps average current below 5 uA in always-on wearable UIs.
Recomendado
Portable Medical / Health Monitor
Medical-grade portable monitors benefit from the PIC24FJ64GA702T-I/SS 16 MIPS performance for heart-rate and SpO2 DSP filtering, combined with the 12-bit ADC and three analog comparators that digitize pulse-oximetry photodiode signals. The 64 KB Flash is adequate for FDA-style firmware builds with reference algorithms, while ECC Flash improves reliability in safety-critical applications. Wide 2.0-3.6 V supply allows direct Li-ion cell operation across the full discharge curve, and the eXtreme Low Power idle modes enable continuous monitoring for 2+ weeks on a single 500 mAh battery. Industrial -40 C to +85 C temperature grade supports clinical-environment storage and transport.
Recomendado
Battery-Powered Industrial Data Logger
Industrial data loggers on factory floors and remote installations leverage the PIC24FJ64GA702T-I/SS 14-channel 12-bit ADC to digitize multiple analog process signals (4-20 mA loops, thermocouples via external amplifiers) without an external mux. The 32 KB effective Flash stores months of timestamped logs in compressed form, and the 32-bit RTCC provides accurate timekeeping with external 32.768 kHz crystal. UART/SPI/I2C peripheral pin-select remapping connects to local sensors, external EEPROM, and modems. The industrial -40 C to +85 C grade and wide 2.0-3.6 V supply tolerate harsh factory electrical environments and battery-source variation.
Recomendado
Low-Power Wireless Sensor Hub
A wireless sensor hub using the PIC24FJ64GA702T-I/SS runs UART/SPI/I2C peripherals via pin-select remapping to a sub-GHz or BLE module, while the 16 MIPS core manages packet assembly, encryption, and retransmission logic. The 16 KB SRAM buffers received payloads before forwarding to a backhaul link, and the 64 KB ECC Flash supports secure-boot and encrypted firmware loaders. eXtreme Low Power sleep modes (sub-1 uA) extend battery life between transmissions, and the wide 2.0-3.6 V supply operates directly from a CR2477 coin cell or 2x AAA battery pack. Peripheral pin-select allows the same SSOP-28 footprint to support multiple radio modules by reassigning pins in firmware.
Recomendado
Smart Home Sensor / Controller
Smart-home sensors and controllers leverage the PIC24FJ64GA702T-I/SS combination of eXtreme Low Power sleep (sub-uA), CTMU capacitive touch for buttons and sliders, and the 12-bit ADC for analog sensors (light, temperature, gas). The 64 KB Flash fits Zigbee or Matter application profiles, while 16 KB SRAM handles network tables. The 28-SSOP package suits wall-switch form factors where Z-axis height matters, and the wide 2.0-3.6 V supply operates from 2x AAA cells for 5+ years. Peripheral pin-select remapping lets designers move RF-module connections without PCB rework.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ64GA702T-I/SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ64GA702T-I/SO | PIC24FJ64GA702-I/MV | PIC24FJ64GA702-E/SO | PIC24FJ128GA702T-I/SO | PIC24FJ64GA102T-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SOIC | 28-UQFN | 28-SOIC | 28-SOIC | 28-SSOP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB ECC | 64 KB ECC | 64 KB ECC | 64 KB ECC | 128 KB ECC | 64 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB |
| Max 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 |
| Supply 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 |
| Temperature Grade | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| ADC / CTMU | 12-bit 200 ksps + CTMU | 12-bit 200 ksps + CTMU | 12-bit 200 ksps + CTMU | 12-bit 200 ksps + CTMU | 12-bit 200 ksps + CTMU | 10-bit ADC, no CTMU |
Diferenciadores clave
- Integrated CTMU enables BOM-free capacitive touch (frente a PIC24FJ64GA102T-I/SS)
- Wider temperature range option in same die (frente a PIC24FJ64GA702T-I/SO)
- 12-bit ADC vs 10-bit on older GA1xx siblings (frente a PIC24FJ64GA102T-I/SS)
Notas de diseño
Estimated: at 32 MHz active and VDD = 3.3 V, the PIC24FJ64GA702T-I/SS draws approximately 8 mA active (MIPS/mA ratio ~2) and falls to sub-1 uA in Sleep mode with RTCC running. Place a 10 uF bulk tantalum plus a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD/AVDD pins to suppress core-switching transients. Keep analog and digital grounds as separate star-traces that meet only at the IC's VSS/AVSS pins to avoid coupling ADC noise into the digital core.
Route the ICSP pins (PGEC1/PGED1, typically RB6/RB7) to a 2x3 or 1x6 programming header with no series resistors. Keep the trace length under 50 mm and avoid running them parallel to switching power traces. For capacitive-touch PCB layout, dedicate one ground-free guard trace around each touch electrode and route it back to an unused GPIO set to a quiet logic level to suppress false touches.
Do not configure the MCLR pin as an output - the PIC24FJ64GA702T-I/SS requires a 10 kOhm pull-up on MCLR for reliable reset. Do not exceed VDD > 3.6 V or reverse the AVDD/AVSS pins, as this will permanently damage the analog subsystem. When migrating from PIC24FJ64GA002, the most common gotcha is the SFR remap for the PPS module - older firmware that hard-coded analog pin mappings will fail to compile until CONFIG bits are updated.
Estimated: keep the 32.768 kHz watch-crystal traces within 5 mm of SOSC1/SOSC2 and surround them with a ground pour to attenuate stray capacitive coupling. For ADC accuracy >10 ENOB, add a 100 nF + 10 uF RC low-pass filter at the analog supply input (AVDD) derived from the digital VDD via a ferrite bead. Avoid routing digital signals under the ADC reference area.
Información de cumplimiento
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications select PIC24FJ64GA702-E/SO extended grade or PIC24FJxxxGA7xx AEC-Q100 variants.
