PIC24F16KA302-E/SP - 16-bit XLP MCU 16KB Flash | Microchip
N.º de pieza: PIC24F16KA302-E/SP ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.95 | $2,95 |
| 10 | $2.74 | $27,40 |
| 100 | $2.42 | $242,00 |
| 500 | $2.18 | $1.090,00 |
| 1.000 | $1.94 | $1.940,00 |
PIC24F16KA302-E/SP Descripción general
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU, memory, and programmable peripherals. Within the broader taxonomy, this part belongs to the 16-bit microcontroller class, which sits between 8-bit MCUs (lower performance, simpler peripherals) and 32-bit MCUs (Cortex-M class, higher performance, more complex). The PIC24F line is Microchip's 16-bit entry tier, optimized for low power and ease of use with the MPLAB XC16 toolchain.
Key differentiating features of the PIC24F16KA302 include the XLP Deep Sleep current (sub-uA range), the integrated CTMU for capacitive touch and precision time measurement, the RTCC with calendar mode, and a DSBOR/DSWDT (Deep Sleep Brown-Out Reset / Deep Sleep Watchdog Timer) that maintains supervisory functions while the core is asleep. These features let the device wake only on a meaningful event, dramatically extending battery life in sensor and metering products.
The architecture is a modified Harvard 16-bit RISC core with a hardware multiplier for fast DSP-style operations, plus a rich peripheral set including multiple timers, UART, SPI, I2C, and 12-bit ADC with up to 13 input channels (package-dependent). The device operates from 1.8 V to 3.6 V across the industrial temperature range of -40C to +125C, and supports in-circuit serial programming (ICSP) and self-programmability.
Typical applications span battery-powered sensor nodes, IoT edge devices, wearable health monitors, remote controls, smart metering, capacitive touch user interfaces, and industrial control where Deep Sleep consumption is the dominant lifetime metric. The -E temperature grade extends operation to +125C, suitable for harsh industrial environments.
When designing with this part, choose the internal 8 MHz or 32 kHz oscillators carefully: switching to the low-power oscillator and disabling unused peripherals in Deep Sleep typically cuts quiescent current by orders of magnitude compared to running the full 32 MHz MIPS core. The CTMU requires careful PCB layout for capacitive touch: keep the sense traces short, guarded by a ground ring, and avoid running them near high-frequency signals.
This page synthesizes distributor pricing, parametric cross-references in the same SPDIP-28 footprint, and practical low-power design notes not collected in any single manufacturer datasheet.
Alternativas directas para PIC24F16KA302-E/SP — 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 PIC24F16KA302-E/SP (mismo factor de forma y huella) — difiere en ADC, CTMU, I/O Pins, Package, Program Memory (Flash).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24F16KA302-I/SP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24F16KA301-I/SP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24F16KA102-I/SP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24F08KA102-I/P
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24F16KA302T-I/SP
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC24F16KA302-E/SP Valores máximos y características eléctricas
| Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Program Memory (Flash) | 16 KB (5.5K x 24 words) |
| RAM | 2 KB |
| EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 18 (this 28-pin SPDIP variant) |
| ADC | 12-bit, up to 13 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes, runs in Deep Sleep |
| Timers | Multiple 16-bit and 32-bit Timer modules |
| Communication | UART, SPI, I2C |
| Oscillator | Internal 8 MHz and 32 kHz; PLL; external crystal support |
| Encapsulado | 28-pin SPDIP (0.300 inch, 7.62 mm) |
| Temperature Grade | -40C to +125C (E = Extended) |
| Programming/Debug | ICSP (In-Circuit Serial Programming) |
| Estado RoHS | Compliant |
| Lead-Free | Yes |
Configuración de pines de PIC24F16KA302-E/SP
| Pin 1 | MCLR — Master Clear (reset, active low) / ICSP programming voltage input |
| Pin 2 | RA0 — I/O port A bit 0 / analog input AN0 |
| Pin 3 | RA1 — I/O port A bit 1 / analog input AN1 |
| Pin 4 | RB0 — I/O port B bit 0 / programming PGD |
| Pin 5 | RB1 — I/O port B bit 1 / programming PGC |
| Pin 6 | RB2 — I/O port B bit 2 / analog input AN4 |
| Pin 7 | RB3 — I/O port B bit 3 / analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — External oscillator / crystal input |
| Pin 10 | OSC2 — External oscillator / crystal output |
| Pin 11 | RB4 — I/O port B bit 4 / SDA1 |
| Pin 12 | RB5 — I/O port B bit 5 / SCL1 |
| Pin 13 | RB6 — I/O port B bit 6 / ICPGC clock |
| Pin 14 | RB7 — I/O port B bit 7 / ICPGD data |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 17 | RA2 — I/O port A bit 2 / analog input AN2 / CVREF- |
| Pin 18 | RA3 — I/O port A bit 3 / analog input AN3 / CVREF+ |
| Pin 19 | RA4 — I/O port A bit 4 / SOSCO (32 kHz crystal out) |
| Pin 20 | RA5 — I/O port A bit 5 / SOSCI (32 kHz crystal in) |
| Pin 21 | RA6 — I/O port A bit 6 / analog input AN6 |
| Pin 22 | RA7 — I/O port A bit 7 / analog input AN7 |
| Pin 23 | RC0 — I/O port C bit 0 |
| Pin 24 | RC1 — I/O port C bit 1 |
| Pin 25 | RC2 — I/O port C bit 2 |
| Pin 26 | RC3 — I/O port C bit 3 |
| Pin 27 | RC4 — I/O port C bit 4 |
| Pin 28 | RC5 — I/O port C bit 5 |
Aplicaciones típicas
PIC24F16KA302-E/SP es adecuado para 6 aplicacións: Battery-Powered Wireless Sensor Node, Capacitive Touch User Interface, Smart Electricity / Water Meter, Wearable Health Monitor, Industrial Control and HMI Module, Remote Control and Consumer IR Product.
Battery-Powered Wireless Sensor Node
The PIC24F16KA302-E/SP is well suited to battery-powered wireless sensor nodes where Deep Sleep current dominates lifetime. Its sub-microamp XLP Deep Sleep current with active RTCC allows the part to wake only on a meaningful event (timer, external interrupt, sensor threshold), then run the 16 MIPS core briefly to acquire data and transmit. The 1.8-3.6 V VDD range accepts 2x AA alkaline, 2x AA NiMH, or a single Li-ion cell directly without level shifting. The integrated CTMU can drive a capacitive humidity or soil-moisture sensor without an external analog front end, and the 12-bit ADC with 13 channels handles multiple analog sensor inputs. A typical 2x AA sensor node using PIC24F16KA302-E/SP can run 5-10 years on the same cells at a 1% duty cycle.
Recomendado
Capacitive Touch User Interface
The CTMU peripheral integrated in the PIC24F16KA302-E/SP provides hardware-assisted capacitive touch sensing for buttons, sliders, and proximity detection. It produces a constant current and measures the time required to charge a sense pad, enabling high-resolution capacitance measurement in microseconds without burdening the CPU. Compared to software-only touch libraries, CTMU touch uses 5-10x less CPU time and provides better noise immunity through averaging. Designers route guarded sense traces directly to ADC/CTMU-capable pins, avoiding the need for a dedicated touch controller IC. The part's 18 I/O pins support up to 12-16 touch buttons in a matrix configuration, and the 12-bit ADC can be used for backlight or ambient-light sensing in the same UI module.
Recomendado
Smart Electricity / Water Meter
The PIC24F16KA302-E/SP's RTCC with calendar mode plus Deep Sleep retention makes it a strong fit for smart metering applications. The RTCC continues incrementing time and date while the MCU core is asleep, and the DSBOR/DSWDT maintain system integrity during brown-out or firmware lock-up - critical for unattended meter installations with 10-15 year battery life targets. The 16 KB Flash holds metering protocol stacks (DLMS/COSEM, Modbus, or wireless M-Bus) plus calibration tables, and the 512-byte EEPROM stores tariff parameters and tamper counters that persist across power cycles. Industrial -40C to +125C operation covers outdoor meter enclosures in hot climates. CTMU measures flow-sensor pulses or capacitive level sensing without extra analog ICs.
Recomendado
Wearable Health Monitor
Wearable health monitors benefit from the PIC24F16KA302-E/SP combination of low XLP Deep Sleep current, 32 MHz compute headroom for digital filtering, and the 12-bit ADC for biosignal acquisition (pulse oximetry, ECG, galvanic skin response). The 1.8-3.6 V VDD range accommodates single-cell Li-ion or Li-poly batteries used in wearables, and the small SPDIP-28 package footprint simplifies through-hole prototyping on a custom flex-PCB breakout. Deep Sleep currents in the nanoamp range enable continuous heart-rate monitoring on a coin cell for 6-12 months. The integrated CTMU can also be used for body-proximity detection to gate sensor power, saving additional energy. The -E temperature grade covers the -40C to +125C range required for skin-contact and ambient temperature swings.
Recomendado
Industrial Control and HMI Module
The PIC24F16KA302-E/SP serves as a robust co-processor or main controller for industrial HMI modules and control panels that need to operate in extended temperature environments. The -E variant supports -40C to +125C operation, suitable for factory-floor enclosures near motors or heaters. UART, SPI, and I2C interfaces connect to motor drivers, display modules, and sensor front-ends; the 12-bit ADC reads analog setpoints or feedback signals. The 16 KB Flash holds control-loop firmware plus a simple text-based menu, and the RTCC timestamps events in logs. The SPDIP-28 through-hole package simplifies hand-soldered prototypes and field-service replacements - important for industrial products with long service lifetimes.
Recomendado
Remote Control and Consumer IR Product
The PIC24F16KA302-E/SP is a strong choice for battery-powered remote controls, IR blasters, and consumer IoT products that need long battery life and modest compute. The XLP Deep Sleep current lets the device sit idle for weeks, waking only when a button is pressed or an IR command is received. The 16 MIPS core is ample for IR protocol encoding/decoding (RC5, NEC, SIRC), and the 2 KB RAM buffers received/transmit frames comfortably. UART or SPI connects to an RF or WiFi co-processor (e.g., ESP32 or sub-GHz transceiver) for hybrid IR/RF remotes. The 18 I/O pins drive up to 20 buttons in a matrix, and CTMU supports touch-gesture back panels in premium remote-control designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24F16KA302-E/SP — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC24F16KA302-I/SP | PIC24F16KA301-I/SP | PIC24F16KA102-I/SP | PIC24F08KA102-I/P | PIC24F16KA302T-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SPDIP-28 | SPDIP-28 - same | SPDIP-28 - same | SPDIP-28 - same | SPDIP-28 - same | SPDIP-28 - same |
| Program Flash | 16 KB | 16 KB | 8 KB (-50%) | 16 KB | 8 KB (-50%) | 16 KB |
| RAM | 2 KB | 2 KB | 1 KB (-50%) | 2 KB | 1.5 KB (-25%) | 2 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| 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 |
| ADC | 12-bit, 13 ch | 12-bit, 13 ch | 12-bit, 13 ch | 12-bit | 12-bit | 12-bit, 13 ch |
| CTMU | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
Diferenciadores clave
- Extended -40C to +125C industrial temperature grade in SPDIP-28 (frente a PIC24F16KA302-I/SP)
- Larger Flash and RAM than -301 in same SPDIP-28 footprint (frente a PIC24F16KA301-I/SP)
- Mature XLP silicon with documented Deep Sleep current optimization (frente a PIC24F16KA102-I/SP)
Notas de diseño
Estimated: XLP Deep Sleep current for PIC24F16KA302-E/SP is typically sub-1 uA with RTCC active, but only if you (1) switch the system clock to the 32 kHz SOSC before entering Deep Sleep, (2) disable all unused peripherals in their PMD registers, and (3) ensure all I/O pins are configured as analog (to disable digital input buffers) or driven to a defined logic level. Leaving floating inputs can add tens of microamps due to the input buffer shoot-through current. Use the DSCCR/DSWAKE registers to control which peripherals can wake the part.
Place VDD decoupling capacitors (typically 100 nF ceramic plus 4.7 uF bulk) within 5 mm of the VDD pin. For SPDIP-28, the part has two VSS pins (8 and 15) and one VDD pin (16) - connect both VSS pins directly to the ground plane with short, wide traces. The MCLR pin requires a 10 kohm pull-up to VDD; add a 100 nF capacitor from MCLR to ground only if the application experiences long, hot-reconnect events (to slow the rising edge).
Do not rely on the internal 8 MHz Fast RC oscillator for UART communications without calibrating it against the 32 kHz Secondary Oscillator via the FRC postscaler - this is the most common cause of UART framing errors on PIC24F designs. Also note that the PIC24F16KA302 VDD minimum during Flash self-programming is 2.25 V, higher than the 1.8 V run-time minimum - if your battery can sag below 2.25 V, disable self-programming in those conditions or the write will fail.
CTMU capacitive touch traces should be routed on the top layer, kept short (under 50 mm), and surrounded by a ground-hatched guard ring tied to a quiet analog ground. Avoid routing touch traces parallel to high-frequency signals (SPI clocks, switching power supply nodes) - capacitive coupling can inject noise into the touch measurement and cause false triggers. The CTMU current source magnitude should be tuned per pad size; larger pads need higher CTMU current or longer integration time.
Información de cumplimiento
RoHS and lead-free confirmed per Microchip product page; -E temperature grade is industrial extended, not automotive AEC-Q100 qualified.
