PIC24FJ64GA702-E/SO - 16-Bit 32MHz 64KB Flash MCU | Microchip
N.º de pieza: PIC24FJ64GA702-E/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.82 | $3,82 |
| 10 | $3.59 | $35,90 |
| 100 | $3.12 | $312,00 |
| 500 | $2.74 | $1.370,00 |
| 1.000 | $2.41 | $2.410,00 |
PIC24FJ64GA702-E/SO Descripción general
A 16-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a wide range of peripherals onto a single silicon die. The PIC24F family belongs to Microchip's broader 16-bit DSC/MCU portfolio, which itself falls into the wider category of embedded microcontrollers within semiconductors. 16-bit MCUs occupy the middle ground between 8-bit parts (cost-optimized, low power) and 32-bit ARM Cortex-M cores (highest performance), offering deterministic interrupt response and richer math for sensor and motor control while still fitting cost-sensitive designs.
Key features include eXtreme Low Power (XLP) operation with multiple sleep modes, peripheral pin select (PPS) for flexible I/O mapping, an integrated charge time measurement unit (CTMU) for capacitive touch sensing, a 12-bit ADC with up to 14 analog inputs at 200 ksps, three analog comparators, and a direct memory access (DMA) controller that offloads data movement from the CPU. The 64 KB ECC Flash improves reliability in harsh environments by detecting and correcting single-bit errors in program memory.
The architecture is a modified Harvard design with separate program and data buses, allowing simultaneous instruction fetch and data access. The 32 MHz core delivers 16 MIPS with deterministic 4-cycle instruction execution, and the integrated DSP engine (in higher-tier family members) accelerates math-intensive tasks such as motor control loops and digital filters. The result is an MCU that can handle both general-purpose control and signal-processing tasks without external components.
Typical applications include industrial sensor interfaces, capacitive touch user interfaces, low-power IoT edge nodes, portable medical instruments, and automotive body/chassis subsystems (note: the -E grade here is industrial, not AEC-Q100 automotive; the -I grade is industrial). The wide operating voltage range of 2.0 V to 3.6 V makes it well suited to battery-powered designs where a single Li-Ion cell must be regulated down efficiently.
When designing with this device, prioritize PPS to route peripherals to convenient pins, and use the XLP sleep modes aggressively for battery applications: deep sleep current is in the microamp range. Ensure the 28-SOIC footprint has adequate copper area for thermal dissipation even though peak power is low, and follow Microchip's AN1066 for IEC 61000-4-4/6 EMC layout recommendations if the design will be deployed near noisy industrial loads.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para PIC24FJ64GA702-E/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 PIC24FJ64GA702-E/SO (mismo factor de forma y huella) — difiere en ADC, Operating Temperature, Package, Core Architecture, MSL Level.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ64GA702-I/SO
✅ Sustitución directa✓ En stock
$2.34 / unidad
Ver hoja de datos →PIC24FJ64GA702-E/SO Valores máximos y características eléctricas
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 64 KB (22K x 24) with ECC |
| Data Memory (RAM) | 8 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| ADC | 12-bit, up to 200 ksps, up to 14 analog inputs |
| Comparators | 3 analog comparators |
| CTMU | Charge Time Measurement Unit (touch interface) |
| DMA | Yes (direct memory access) |
| Serial Interfaces | UART, SPI, I2C (via PPS) |
| Timers | Multiple 16-bit and 32-bit timers |
| Peripheral Pin Select (PPS) | Yes |
| Temperatura de funcionamiento | -40C to +125C (extended grade) |
| Encapsulado | 28-pin SOIC (SO), 300-mil wide body |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 (per JEDEC J-STD-020) |
| Estado RoHS | Compliant |
| Low Power Modes | eXtreme Low Power (XLP) - deep sleep in uA range |
Configuración de pines de PIC24FJ64GA702-E/SO
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| Pin 2 | OSCI — Crystal oscillator input (or external clock) |
| Pin 3 | OSCO — Crystal oscillator output |
| Pin 4 | SOSCI — Secondary crystal oscillator input (RTCC) |
| Pin 5 | SOSCO — Secondary crystal oscillator output (RTCC) |
| Pin 6 | VBAT — RTCC battery backup supply |
| Pin 7 | RP15/RB15 — I/O port pin with peripheral pin select |
| Pin 8 | RP14/RB14 — I/O port pin with peripheral pin select |
| Pin 9 | RP13/RB13 — I/O port pin with peripheral pin select |
| Pin 10 | RP12/RB12 — I/O port pin with peripheral pin select |
| Pin 11 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RP11/RB11 — I/O port pin with peripheral pin select |
| Pin 14 | RP10/RB10 — I/O port pin with peripheral pin select |
| Pin 15 | RP9/RB9 — I/O port pin with peripheral pin select |
| Pin 16 | RP8/RB8 — I/O port pin with peripheral pin select |
| Pin 17 | RP7/RB7 — I/O port pin with peripheral pin select |
| Pin 18 | RP6/RB6 — I/O port pin with peripheral pin select |
| Pin 19 | AN9/RP5/RB5 — Analog input 9 / I/O port pin with PPS |
| Pin 20 | AN10/RP4/RB4 — Analog input 10 / I/O port pin with PPS |
| Pin 21 | AN11/RP3/RB3 — Analog input 11 / I/O port pin with PPS |
| Pin 22 | AN12/RP2/RB2 — Analog input 12 / I/O port pin with PPS |
| Pin 23 | AN13/RP1/RB1 — Analog input 13 / I/O port pin with PPS |
| Pin 24 | AN14/RP0/RB0 — Analog input 14 / I/O port pin with PPS |
| Pin 25 | AVDD — Analog supply voltage (tie to VDD) |
| Pin 26 | AVSS — Analog ground (tie to VSS) |
| Pin 27 | VCAP — Voltage regulator decoupling (connect 10 uF to VSS) |
| Pin 28 | VSS — Ground reference |
Aplicaciones típicas
PIC24FJ64GA702-E/SO es adecuado para 7 aplicacións: Industrial Sensor Interface, Capacitive Touch User Interface, Battery-Powered IoT Edge Node, Portable Medical Instrument, Automotive Body and Comfort Electronics, Low-Cost Motor Control, Display Control and User Interfaces.
Industrial Sensor Interface
Industrial sensor nodes combine analog front-ends with digital control, and the PIC24FJ64GA702-E/SO brings a 12-bit 200 ksps ADC, three comparators, and 14 analog inputs to that role. The 32 MHz / 16 MIPS core runs linearization, calibration, and HART or Modbus protocol stacks in real time. ECC Flash guards against soft errors in electrically noisy panels, and the -E grade sustains operation across -40C to +125C inside sealed enclosures. Power dissipation stays low because the eXtreme Low Power sleep modes drop quiescent current into the microamp range between measurements. Recommended companion: PIC24FJ64GA412-I/BG (higher pin count, more analog inputs) for multi-channel sensor aggregators.
Recomendado
Capacitive Touch User Interface
Capacitive touch buttons, sliders, and proximity sensors rely on the CTMU peripheral to measure sub-nanoamp charging times with high precision. The PIC24FJ64GA702-E/SO integrates CTMU plus PPS, letting a designer map touch channels to almost any GPIO. The 12-bit ADC samples the CTMU discharge waveform at 200 ksps, resolving finger touches through several millimeters of glass or plastic. eXtreme Low Power idle currents extend battery life in remote controls and wireless switches. PPS also lets the same pins serve as UART or SPI for the host link without remapping the PCB. Recommended companion: PIC24FJ64GA106T-I/PT for touch designs that need more channels.
Recomendado
Battery-Powered IoT Edge Node
Edge nodes for IoT must sleep deeply between transmissions to maximize battery life. The PIC24FJ64GA702-E/SO combines XLP sleep modes (deep sleep and deep sleep with RTCC) with DMA so the CPU can stay asleep while peripherals move data. A 2.0 V minimum supply lets the device run directly from a single Li-Ion or two AA cells. UART, SPI, and I2C via PPS simplify the radio interface; the 32 MHz CPU bursts to encrypt and transmit in milliseconds, returning to sleep before the average current rises significantly. Recommended companion: PIC24FJ64GA110T-I/PF for nodes that need USB device connectivity.
Recomendado
Portable Medical Instrument
Portable medical instruments demand deterministic control, low noise, and reliable code storage. The PIC24FJ64GA702-E/SO's ECC Flash detects and corrects single-bit memory errors, important for FDA-classified devices where undetected code corruption could compromise patient safety. The 12-bit ADC at 200 ksps suits pulse oximetry, temperature, and impedance measurement front-ends, while DMA offloads waveform capture from the CPU. The -E temperature grade covers body-worn devices and ambulance-stored equipment. Recommended companion: PIC24FJ64GA204-E/PT for designs that need more memory and a 44-pin footprint.
Recomendado
Automotive Body and Comfort Electronics
Body controllers for seat adjusters, mirror modules, and climate controls require a robust MCU with moderate computation. The PIC24FJ64GA702-E/SO's -40C to +125C range and ECC Flash address these needs at non-safety-critical voltage rails. The PWM and timer blocks drive small DC motors and LED backlighting; the ADC reads thermistor and current-sense feedback. Note: this -E variant is industrial-grade only; for AEC-Q100 qualification use PIC24FJ64GA702 automotive variants. Recommended companion: PIC24FJ256GA108T-I/PT for higher-end body controllers with more Flash.
Recomendado
Low-Cost Motor Control
Small brushed DC and stepper motor drives fit within the PIC24FJ64GA702-E/SO's peripheral set. The PWM and output compare blocks generate center-aligned switching waveforms up to the device's 32 MHz core rate, while the comparators trigger hardware protection on overcurrent events. DMA streams ADC samples into RAM for closed-loop PI control, keeping CPU overhead low. The 28-SOIC footprint is friendly to through-hole-friendly hand-solder prototypes and small-batch runs. For more demanding BLDC or FOC applications, scale up to PIC24FJ32MC102T-I/SS. Recommended companion: PIC24FJ32MC102T-I/SS for higher-end motor control.
Recomendado
Display Control and User Interfaces
Small character or graphic LCDs, segment LED panels, and seven-segment displays pair well with the PIC24FJ64GA702-E/SO. The PWM outputs dim backlights smoothly, and the 32 MHz CPU drives ST7565, HD44780, or WS0010 controllers without DMA intervention. PPS lets the designer route SPI or I2C to the most convenient pins for the display connector. The 12-bit ADC adds value for ambient-light sensing to auto-dim the panel. Recommended companion: PIC24FJ64GA004T-I/PT for designs that want even lower cost in a smaller package.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ64GA702-E/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24FJ64GA702-I/SO | PIC24FJ64GA702-E/SS |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (300-mil) | 28-SOIC (300-mil) - same | 28-SSOP (209-mil) - narrower body |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Flash Memory | 64 KB ECC | 64 KB ECC | 64 KB ECC |
| RAM | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +125C (extended) |
| Supply Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| ADC | 12-bit, 200 ksps, 14 ch. | 12-bit, 200 ksps, 14 ch. | 12-bit, 200 ksps, 14 ch. |
| CTMU Touch Interface | Yes | Yes | Yes |
| DMA Controller | Yes | Yes | Yes |
Diferenciadores clave
- Extended temperature grade -40C to +125C (frente a PIC24FJ64GA702-I/SO)
- Wider SOIC package for hand-prototype friendly assembly (frente a PIC24FJ64GA702-E/SS)
- Integrated DMA offloads CPU during ADC bursts (frente a PIC24FJ64GA002 family)
Notas de diseño
Place a 10 uF ceramic decoupling capacitor on VDD (pin 11) and a separate 10 uF on AVDD (pin 25) tied to VSS/AVSS. Add a 0.1 uF X7R capacitor in parallel for high-frequency decoupling, located within 5 mm of the package. The VCAP pin (27) requires a 10 uF low-ESR ceramic to ground - never leave it floating. Use a ferrite bead between VDD and AVDD when analog accuracy matters, and follow Microchip AN1066 for IEC 61000-4-4/6 EMC compliance in industrial layouts.
The 28-SOIC (300-mil) wide-body package keeps theta_JA modest for a small-outline plastic package, but at peak CPU activity and 3.6 V supply the device still draws enough current to warrant thermal awareness. Connect the SOIC footprint's exposed lead frame pad to a small copper pour on the top layer; even a 100 mm^2 copper island reduces junction temperature by several degrees. For designs in sealed enclosures with high ambient temperature, derate maximum clock speed or move to the -E grade rated to +125C.
Keep the crystal traces (OSCI/OSCO and SOSCI/SOSCO) short, symmetric, and surrounded by a ground guard ring to minimize radiated emissions. Place the MCLR pull-up resistor (typically 10 kOhm) close to the pin and add a 100 nF capacitor to ground for noise immunity. If PPS is used to remap peripherals, verify pin assignments in the configuration bits before committing the layout; PPS conflicts with analog-only pins on certain packages. Route ADC inputs away from switching signals, and keep the analog ground return path short.
Do not skip the VCAP capacitor - the internal 1.8 V core regulator requires it for stability, and the device will reset unpredictably without proper capacitance. Ensure JTAG/ICSP pins are not driven externally when not in use, or use the configuration bits to disable them. When migrating from the PIC24FJ64GA002 family, double-check peripheral pin select mappings - PPS is enabled on this part but pin functions differ from older PIC24F devices. Watch for ADC acquisition time vs source impedance; exceeding 5 kOhm source impedance degrades ADC linearity at 200 ksps.
For designs that use the ADC at near-maximum 200 ksps sample rates, place an op-amp buffer in front of analog inputs to drive the sample-and-hold capacitor. The CTMU inputs are particularly sensitive to leakage - keep traces short and guard against moisture contamination in humid environments with conformal coating. For SPI or I2C buses running above 1 MHz, add 22-100 ohm series resistors close to the driver pins to dampen ringing; this is especially important on the 28-SOIC where pin capacitance is slightly higher than QFN packages.
Información de cumplimiento
RoHS compliant per Microchip product page and DigiKey listing. -E grade is industrial temperature only; for AEC-Q100 automotive qualification, choose Microchip's automotive-grade PIC24F variants. Lead-free and halogen-free per Microchip's Material Declaration.
