PIC24FJ64GA202-I/MM - 64KB Flash 16-bit XLP MCU | Microchip
N.º de pieza: PIC24FJ64GA202-I/MM ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.36 | $336,00 |
| 500 | $2.94 | $1.470,00 |
| 1.000 | $2.61 | $2.610,00 |
PIC24FJ64GA202-I/MM Descripción general
A 16-bit microcontroller (MCU) is an embedded processor core that fetches, decodes and executes 16-bit-wide instructions, sitting in the hierarchy between 8-bit microcontrollers (lower code density, slower arithmetic) and 32-bit microcontrollers / application processors (higher performance, higher cost). PIC24F MCUs use a modified Harvard RISC architecture that delivers higher code density and faster context switching than 8-bit PICs while keeping power consumption low.
Key features of the PIC24FJ64GA202-I/MM include the integrated crypto module (AES/DES/SHA support), eXtreme Low Power (XLP) technology with sub-microamp sleep currents, multiple serial interfaces (UART, SPI, I2C), a real-time clock calendar (RTCC), a 10-bit A/D converter with up to 9 input channels, and up to 21 general-purpose I/O pins. The 28-pin QFN package supports low-pin-count, space-constrained PCB designs.
Architecturally the device pairs a 16-bit CPU core with a wide peripheral set including 5 16-bit timers, an input capture module, output compare modules and an enhanced parallel master/slave port. The hardware crypto engine accelerates AES-128/192/256 and SHA-1/SHA-256, offloading encryption tasks from the CPU and reducing firmware complexity for secure applications.
Typical applications include IoT sensor nodes, secure authentication tokens, low-power remote controls, medical wearables, smart meters and industrial data loggers. The wide 2.0V to 3.6V VDD operating range and XLP modes make the device especially attractive for battery-powered designs that must sleep for years on a primary cell.
Design consideration: the 28-QFN exposed pad must be soldered to the PCB ground plane to meet thermal and electrical performance. Without proper pad soldering the device may exhibit higher junction temperature and degraded EMI behavior. For cryptographic use, follow Microchip application notes on key storage and RNG seeding.
Alternativas directas para PIC24FJ64GA202-I/MM — 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 PIC24FJ64GA202-I/MM (mismo factor de forma y huella) — difiere en ADC, Package, Crypto Engine, Timers, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ64GA202T-I/MM
✅ Sustitución directa✓ En stock
$2.45 / unidad
Ver hoja de datos →PIC24FJ64GB202-I/MM
✅ Sustitución directa✓ En stock
$2.46 / unidad
Ver hoja de datos →PIC24FJ128GB202-I/MM
✅ Sustitución directa✓ En stock
$4.65 / unidad
Ver hoja de datos →PIC24FJ128GA202-I/SS
✅ Sustitución directa✓ En stock
$2.74 / unidad
Ver hoja de datos →PIC24FJ64GA202-I/SP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ64GA002-I/MM
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ64GA202-I/MM Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Program Memory (Flash) | 64 KB (64K x 8) |
| Data SRAM | 8 KB |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Encapsulado | 28-QFN-S (6x6 mm) with exposed pad |
| Tipo de montaje | Surface Mount |
| Recuento de pines | 28 |
| Hardware Crypto Engine | AES-128/192/256, DES, SHA-1, SHA-256, MD5, RC4 |
| ADC | 10-bit, multi-channel |
| Timers | Five 16-bit timers/counters |
| Communication Interfaces | UART, SPI, I2C, PMP |
| RTCC (Real-Time Clock Calendar) | Yes |
| XLP (eXtreme Low Power) Modes | Yes (sub-microamp sleep) |
| Estado RoHS | ROHS3 Compliant |
| Product Status | Active |
Configuración de pines de PIC24FJ64GA202-I/MM
| Pin 1 | RA0 — Port A bit 0 / analog input |
| Pin 2 | RA1 — Port A bit 1 / analog input |
| Pin 3 | RA2 — Port A bit 2 / analog input |
| Pin 4 | RA3 — Port A bit 3 / analog reference |
| Pin 5 | RA4 — Port A bit 4 |
| Pin 6 | RA5 — Port A bit 5 |
| Pin 7 | RA6 — Port A bit 6 / OSC2 |
| Pin 8 | RA7 — Port A bit 7 / OSC1 |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Positive supply |
| Pin 11 | RB0 — Port B bit 0 / PGED1 |
| Pin 12 | RB1 — Port B bit 1 / PGEC1 |
| Pin 13 | RB2 — Port B bit 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB4 — Port B bit 4 |
| Pin 16 | RB5 — Port B bit 5 |
| Pin 17 | RB6 — Port B bit 6 |
| Pin 18 | RB7 — Port B bit 7 |
| Pin 19 | RC0 — Port C bit 0 |
| Pin 20 | RC1 — Port C bit 1 |
| Pin 21 | RC2 — Port C bit 2 |
| Pin 22 | RC3 — Port C bit 3 / SCL1 |
| Pin 23 | RC4 — Port C bit 4 / SDA1 |
| Pin 24 | RC5 — Port C bit 5 |
| Pin 25 | RC6 — Port C bit 6 |
| Pin 26 | RC7 — Port C bit 7 |
| Pin 27 | VSS — Ground (QFN exposed pad is also ground) |
| Pin 28 | VDD — Positive supply |
Aplicaciones típicas
PIC24FJ64GA202-I/MM es adecuado para 6 aplicacións: Battery-Powered IoT Sensor Node, Secure Authentication Token, Smart Meter Data Logger, Medical Wearable Health Monitor, Remote Control / Wireless HMI, Industrial Sensor / Actuator Controller.
Battery-Powered IoT Sensor Node
The PIC24FJ64GA202-I/MM is ideal for low-duty-cycle IoT sensor nodes because its XLP sleep currents (sub-microamp) and integrated hardware crypto engine dramatically extend battery life while protecting sensor data. With 64KB flash and 8KB RAM the part can run a TLS-style client, MQTT-SN stack, or LoRaWAN MAC without external memory. The 2.0V to 3.6V VDD range supports direct connection to 2x AA alkaline or single Li-ion cells. Designers typically use Sleep or Deep Sleep modes between sensor readings, waking on RTCC alarm to read sensors and transmit, achieving years of operation on primary cells.
Recomendado
Secure Authentication Token
The PIC24FJ64GA202-I/MM's integrated hardware crypto engine (AES-128/192/256, DES, SHA, MD5, RC4) makes it an excellent host for secure authentication tokens, smart locks and access control badges. The hardware crypto offloads AES from the CPU so authentication handshakes complete in milliseconds, lowering active-mode energy per transaction. The 32MHz CPU and 16-bit arithmetic handle key derivation and challenge-response protocols without external companion ICs. The 28-QFN footprint fits in the small PCBs typical of wearable and key-fob form factors.
Recomendado
Smart Meter Data Logger
For utility metering and industrial data logging the PIC24FJ64GA202-I/MM combines 64KB flash for storing months of measurement history, an RTCC for accurate timestamping, and the hardware crypto engine to sign or encrypt log records. The 10-bit ADC samples analog sensors, while UART/SPI interface to wireless modems. XLP sleep modes allow the device to idle between measurements, drawing hundreds of nanoamps. Wide 2.0V to 3.6V supply range tolerates long wiring runs in industrial environments without precision regulators.
Recomendado
Medical Wearable Health Monitor
The PIC24FJ64GA202-I/MM suits low-power medical wearables that monitor vital signs continuously. XLP sleep currents extend battery life so a wearable can run for weeks on a coin cell, while the 32MHz CPU executes sensor fusion algorithms in real time. The hardware crypto engine encrypts PHI (protected health information) before wireless transmission, supporting HIPAA-style compliance requirements. The 28-QFN (6x6 mm) package fits wristbands and patch form factors.
Recomendado
Remote Control / Wireless HMI
The PIC24FJ64GA202-I/MM provides the processing and crypto capability for secure remote controls used in building automation, smart home and industrial HMI panels. Its UART/SPI peripherals connect to sub-GHz transceivers, while the crypto engine prevents replay attacks by signing button commands. With 64KB flash the device runs rich UI state machines and stores calibration data. Low-cost 28-QFN package enables slim plastic enclosures without sacrificing MCU performance.
Recomendado
Industrial Sensor / Actuator Controller
The PIC24FJ64GA202-I/MM is well-suited for industrial 24V-powered sensor and actuator nodes when paired with an external LDO. Its industrial temperature grade (-40C to +85C) operates in factory floors, while UART/SPI connect to RS-485 transceivers for long-distance fieldbus communication. The hardware crypto engine can sign diagnostic data before transmission, supporting tamper detection. The 32MHz CPU and 5 timers run PID control loops in real time for motor or valve actuation.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ64GA202-I/MM — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ64GA202T-I/MM | PIC24FJ64GB202-I/MM | PIC24FJ128GB202-I/MM | PIC24FJ64GA002-I/MM |
|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6) | 28-QFN-S (6x6) - same | 28-QFN-S (6x6) - same | 28-QFN-S (6x6) - same | 28-QFN-S (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC24F 16-bit RISC | PIC24F 16-bit RISC | PIC24F 16-bit RISC | PIC24F 16-bit RISC | PIC24F 16-bit RISC |
| Flash | 64 KB | 64 KB | 64 KB | 128 KB (+100%) | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Hardware Crypto Engine | Yes (AES/DES/SHA/MD5/RC4) | Yes (same) | No - replaced by USB 2.0 FS OTG | No - USB 2.0 FS OTG instead | No |
| USB 2.0 FS OTG | No | No | Yes | Yes | No |
| Max CPU Clock | 32 MHz (16 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| VDD | 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 |
Diferenciadores clave
- Integrated hardware crypto engine (AES/DES/SHA) (frente a PIC24FJ64GA002-I/MM)
- USB 2.0 full-speed OTG peripheral (frente a PIC24FJ64GA202-I/MM (this part))
- Higher-density 128KB flash upgrade path (frente a PIC24FJ128GB202-I/MM)
Notas de diseño
The 28-QFN-S exposed thermal pad MUST be soldered to the PCB ground plane. Without proper pad soldering the device may exhibit higher junction temperature under load and degraded EMI behavior. Use thermal vias in the pad area to conduct heat into inner copper planes; Microchip recommends a minimum 4x4 via array of 0.3 mm drilled vias filled with solder. The QFN footprint also requires a 1:1 land pattern matching the 6x6 mm body - do not substitute a generic DFN land pattern, as the thermal pad dimensions are device-specific.
For XLP sleep performance the VDD rail must be clean - place a 100nF ceramic decoupling cap adjacent to the VDD pin and a bulk 10uF ceramic at the chip supply. Avoid sharing noisy loads on the same LDO. According to the PIC24FJ64GA110 family datasheet the typical Deep Sleep current is sub-microamp, so even a few microamps of leakage on the supply net will dominate the power budget. Use an MCP1700 LDO or equivalent low-Iq regulator for battery-powered designs.
The PGEC1/PGED1 pins (RB1/RB0 on this 28-QFN) are also general-purpose I/Os - do NOT externally pull them low at reset or the ICSP programmer will fail to enter programming mode. The RTCC requires an external 32.768 kHz crystal or clock source on SOSCO/SOSCI pins for accurate timekeeping; an unloaded internal RC drift is too large for metering applications. Finally, follow Microchip's application notes on key storage before relying on the crypto engine for production secrets - hardware AES alone is not sufficient for tamper resistance.
Estimated: at 32 MHz CPU clock with all peripherals active and 3.3V VDD, the active current is approximately 8 mA. Power dissipation is 3.3V x 8mA = 26.4 mW. With theta_JA of approximately 70 C/W for the 28-QFN (per Microchip package thermal data), junction temperature rise above ambient is 26.4mW x 70 C/W = 1.85 C - well within the -40C to +85C industrial range. No external heatsink is required for typical operation. In Sleep mode the device dissipates under 1 mW.
Información de cumplimiento
ROHS3 compliant per Microchip USA distributor page. Lead-free reflow-compatible. Not AEC-Q100 qualified for automotive - the automotive-graded equivalent is the PIC24FJ64GA202T-I/MM with extended temperature grade. Halogen-free status not explicitly stated on verified sources.
