PIC24FJ128GB202-I/SO - 16-Bit XLP MCU 128KB Flash USB OTG | Microchip
N.º de pieza: PIC24FJ128GB202-I/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.95 | $5,95 |
| 10 | $5.36 | $53,60 |
| 100 | $4.77 | $477,00 |
| 500 | $4.28 | $2.140,00 |
| 1.000 | $3.8 | $3.800,00 |
| 3.000 | $3.42 | $10.260,00 |
PIC24FJ128GB202-I/SO Descripción general
A 16-bit MCU is a microcontroller whose CPU datapath and most registers are 16 bits wide, giving it roughly twice the arithmetic throughput and code density of an 8-bit MCU while staying easier to program than a 32-bit Cortex part. PIC24F devices sit in Microchip's PIC24 hierarchy between the baseline 8-bit PIC10/12/16 MCUs and the high-performance dsPIC33/PIC32 families. They belong to the broader class of microcontrollers -> embedded processors -> semiconductors. This positioning makes PIC24F the sweet spot for USB, crypto, and low-power battery applications that outgrow PIC16 but do not need a full Cortex-M solution.
The PIC24FJ128GB202 combines the XLP nanoWatt XLPTM sleep modes (down to tens of nA), a built-in symmetric/asymmetric crypto accelerator, a true random number generator, and USB OTG with integrated PHY. Peripherals include multiple UART, SPI, I2C, a 10-bit 1.1 Msps ADC, comparators, RTCC, and PWMs. The 128 KB flash is ECC-protected for robust code storage.
Typical applications include secure IoT sensor nodes, battery-powered medical telemetry, USB peripherals, smart meters, secure access control, and wearable fitness devices that need both hardware crypto and USB connectivity. Choose it when you need authenticated firmware, FIDO/U2F token functionality, or low-power USB on a single chip with the simplicity of the MPLAB X toolchain.
Alternativas directas para PIC24FJ128GB202-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 PIC24FJ128GB202-I/SO (mismo factor de forma y huella) — difiere en ADC, Crypto Engine, Operating Temperature, Package, Timers.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ64GB202-I/SO
✅ Sustitución directa✓ En stock
$2.27 / unidad
Ver hoja de datos →PIC24FJ128GB202-I/SO Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit CPU |
| Instruction Set | 16-bit Modified Harvard |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 128 KB (43K x 24 words) with ECC |
| RAM | 8 KB |
| Operating Voltage Range | 2.0 V to 3.6 V |
| USB | USB 2.0 Full-Speed OTG with integrated PHY |
| Crypto Engine | Hardware AES/DES/RSA accelerator |
| Random Number Generator | Hardware TRNG |
| ADC | 10-bit, up to ~1.1 Msps |
| Timers | Multiple 16-bit and 32-bit timers |
| Communication | UART, SPI, I2C, USB OTG |
| Encapsulado | 28-pin SOIC (SO) |
| Temperatura de funcionamiento | -40C to +85C (I grade) |
| Tipo de montaje | Surface Mount |
| Lead-Free / RoHS | Lead-free, RoHS compliant |
Configuración de pines de PIC24FJ128GB202-I/SO
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0 — Port A bit 0 / analog input |
| Pin 3 | RA1 — Port A bit 1 / analog input |
| Pin 4 | RB0 — Port B bit 0 / analog input |
| Pin 5 | RB1 — Port B bit 1 / analog input |
| Pin 6 | RB2 — Port B bit 2 / analog input |
| Pin 7 | RB3 — Port B bit 3 / analog input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Oscillator input / 32.768 kHz crystal |
| Pin 10 | OSC2 — Oscillator output / 32.768 kHz crystal |
| Pin 11 | RA2 — Port A bit 2 |
| Pin 12 | RA3 — Port A bit 3 |
| Pin 13 | RB4 — Port B bit 4 |
| Pin 14 | RB5 — Port B bit 5 |
| Pin 15 | RB6 — Port B bit 6 |
| Pin 16 | RB7 — Port B bit 7 |
| Pin 17 | VDD — Positive supply voltage (2.0V-3.6V) |
| Pin 18 | RA4 — Port A bit 4 |
| Pin 19 | RA5 — Port A bit 5 |
| Pin 20 | RA6 — Port A bit 6 |
| Pin 21 | RC0 — Port C bit 0 |
| Pin 22 | RC1 — Port C bit 1 |
| Pin 23 | RC2 — Port C bit 2 |
| Pin 24 | RC3 — Port C bit 3 / USB D- (alternate) |
| Pin 25 | RC4 — Port C bit 4 / USB D+ (alternate) |
| Pin 26 | RC5 — Port C bit 5 |
| Pin 27 | RC6 — Port C bit 6 / USB VBUS sense |
| Pin 28 | RC7 — Port C bit 7 |
Aplicaciones típicas
PIC24FJ128GB202-I/SO es adecuado para 7 aplicacións: Secure IoT Sensor Nodes, USB FIDO/U2F Security Keys, Battery-Powered Medical Wearables, USB Barcode Scanners and POS Peripherals, Smart Metering and Energy Monitoring, Industrial Secure Access Controllers, Portable Test and Measurement.
Secure IoT Sensor Nodes
The PIC24FJ128GB202-I/SO is purpose-built for secure battery-powered IoT endpoints that must authenticate to cloud services. Its hardware AES-128/DES/RSA crypto engine offloads TLS handshake encryption from the 16 MIPS CPU, while the integrated true random number generator eliminates the need for an external entropy source. With 128 KB ECC flash you can fit a full TLS 1.2 client stack plus OTA bootloader on chip. XLP nanoWatt sleep currents in the nanoamp range enable multi-year coin-cell operation between sensor reads, waking only for measurement, secure transmit, and back to sleep. Pair with an SPI temperature/humidity sensor and a 2.4 GHz radio module via the on-chip SPI/UART for a complete authenticated sensor node.
Recomendado
USB FIDO/U2F Security Keys
Hardware crypto plus USB OTG in one chip is the PIC24FJ128GB202's calling card for FIDO/U2F two-factor authentication keys. The integrated AES/DES accelerator and secure key storage meet FIDO Authenticator requirements without an external crypto companion, while the USB OTG controller enumerates as a Full-Speed HID device over the integrated PHY - no external USB components needed. The 16 MIPS core handles the FIDO challenge-response signature loop in single-digit milliseconds, and the 8 KB RAM accommodates the message buffer plus USB endpoint descriptors. Industrial -40C to +85C range ensures operation across enterprise and consumer environments.
Recomendado
Battery-Powered Medical Wearables
Wearables for fitness, patient monitoring, and continuous glucose sensing need low power, secure data, and simple USB charging - exactly what PIC24FJ128GB202-I/SO delivers. The XLP sleep modes drop current draw to the nanoamp range between heart-rate samples, while AES-128 hardware encryption protects PHI at rest and during BLE/Wi-Fi handoff via an attached radio module. The 10-bit ADC at ~1.1 Msps handles multiple bioelectric signals, and the 28-SOIC package is small enough for wristbands. Industrial -40C to +85C tolerance covers skin-contact and ambient operation.
Recomendado
USB Barcode Scanners and POS Peripherals
USB barcode scanners, magnetic-stripe readers, and POS peripherals benefit from the PIC24FJ128GB202's integrated USB OTG with PHY - eliminating external USB interface chips. The 128 KB ECC flash fits USB HID or CDC class drivers plus scanner firmware, while the 32 MHz / 16 MIPS core decodes 1D/2D barcode streams in real time. AES hardware acceleration protects sensitive card data at rest, meeting payment terminal key-injection requirements. Multiple UART/SPI/I2C instances support connecting to imagers, indicator LEDs, and buzzers.
Recomendado
Smart Metering and Energy Monitoring
Smart electricity, gas, and water meters demand cryptographic authentication of consumption data plus decades of battery life - both delivered by PIC24FJ128GB202-I/SO. The hardware AES engine secures DLMS/COSEM or wireless M-Bus payloads, the TRNG seeds secure key generation, and XLP sleep currents let a meter idle for years between wireless transmissions. 128 KB flash supports multi-protocol stacks (wM-Bus, LoRaWAN, NB-IoT) with over-the-air firmware update. The 28-SOIC package is ruggedized for outdoor meter enclosures.
Recomendado
Industrial Secure Access Controllers
Door controllers, RFID readers, and physical-access systems need both secure credential storage and on-board USB for commissioning - a fit for PIC24FJ128GB202-I/SO. Hardware AES/DES/RSA plus secure key storage authenticates MIFARE DESFire or HID iCLASS credentials, while the USB OTG port serves as a wired commissioning or firmware-update interface. Multiple UART channels support Wiegand readers and RS-485 to host panels, and the 10-bit ADC reads tamper-detection switches. Industrial temperature rating ensures reliable operation in enclosed building-management cabinets.
Recomendado
Portable Test and Measurement
Handheld multimeters, oscilloscope probes, and USB test instruments use PIC24FJ128GB202-I/SO as the main MCU because the integrated USB OTG enumerates as a CDC or vendor-class device to the host PC. The 16 MIPS core runs real-time DSP on ADC samples, while 128 KB flash stores calibration tables, USB drivers, and user interface code. The crypto engine secures proprietary calibration data at rest, preventing unauthorized repair-shop calibration. XLP modes extend battery life during field use, and the 28-SOIC footprint is straightforward to hand-prototype.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ128GB202-I/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ64GB202-I/SO | PIC24FJ128GB202-I/MM | PIC24FJ128GB202-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC (same) | 28-QFN (MM) - different footprint | 28-SSOP - different footprint |
| Flash Memory | 128 KB | 64 KB | 128 KB | 128 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| USB OTG | Yes (Full-Speed, integrated PHY) | Yes | Yes | Yes |
| Crypto Engine | Hardware AES/DES/RSA + TRNG | Hardware AES/DES/RSA + TRNG | Hardware AES/DES/RSA + TRNG | Hardware AES/DES/RSA + TRNG |
| 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 |
Diferenciadores clave
- Integrated hardware crypto engine and TRNG (frente a PIC24FJ128GA202-I/SO)
- On-chip USB OTG with integrated PHY (frente a PIC24FJ128DA106-I/PT)
- 128 KB ECC flash for robust code storage (frente a PIC24FJ64GB202-I/SO)
- XLP nanoWatt sleep technology (frente a Generic ARM Cortex-M0+ MCU)
Notas de diseño
Power the PIC24FJ128GB202-I/SO from a clean 3.3V LDO (MCP1700 or similar) with a 100 nF decoupling cap within 5 mm of each VDD pin and a bulk 4.7 uF tantalum at the regulator output. Place a 10 uF + 100 nF pair near the USB VBUS pin (RC6) if the design is bus-powered, because USB in-rush events can pull VDD below 2.7V and trigger brown-out resets. Use the XLP Sleep and Deep Sleep modes aggressively - disable unused peripherals in peripheral module disable (PMD) registers before entering Sleep to drop quiescent current by hundreds of microamps.
Route the USB D+/D- differential pair (RC4/RC5) as a 90-ohm differential impedance microstrip with continuous ground reference underneath, and keep the pair length-matched to within 2 mm. Series 27-ohm source termination resistors at each line near the MCU reduce ringing. Keep the 28-SOIC keep-out under the package clear of copper pour, but stitch GND vias liberally around the periphery to provide a low-impedance return path for USB common-mode currents.
Three pitfalls appear repeatedly in PIC24FJ128GB202 designs: (1) Forgetting the 10 kohm pull-up on MCLR - without it the part randomly resets. (2) Configuring the oscillator in HS mode instead of XT for low-speed crystals - HS mode overdrives the crystal and causes unstable startup. (3) Failing to configure the alternate function on RC4/RC5 before enabling the USB module - the USB peripheral will enumerate erratically. Always read back CONFIG words after programming and verify them against the source file.
Place the 32.768 kHz crystal within 5 mm of OSC1/OSC2 with a grounded guard trace to minimize stray capacitance. Keep high-frequency switching nodes (DC-DC converter switch node, RF traces) at least 10 mm from the crystal traces to avoid injection-locking. The analog reference (VREF+/VREF-) traces should be guarded with ground and routed away from digital signals - if you don't use external VREF, tie these pins to VDD/VSS with a 100 nF cap. The exposed thermal pad on -I/MM variants must be soldered to a grounded copper pour for mechanical stability and thermal performance.
Información de cumplimiento
RoHS-compliant per Microchip product page. Not AEC-Q100 qualified - this is a -40C to +85C industrial part. For automotive applications choose the PIC24FJ128GB202-E/SO or PIC24FJ128GB202-H/SO automotive-qualified variants.
