PIC24FV32KA302-E/SP - 32KB Flash 16-bit MCU, 32MHz, SPDIP-28 | Microchip
MPN: PIC24FV32KA302-E/SP ✓ Hoạt độngPIC24FV32KA302-E/SP Tóm tắt
A 16-bit microcontroller (MCU) is a programmable system-on-chip that combines a 16-bit CPU core, Flash program memory, SRAM data memory, and a rich peripheral set into a single integrated circuit. Within the broader semiconductor taxonomy, the PIC24F family sits between 8-bit PIC MCUs and 32-bit ARM Cortex-M parts, providing a migration path for applications that exceed 8-bit performance but do not require a 32-bit core. The PIC24FV32KA302-E/SP integrates peripherals that continue operating in Deep Sleep mode (DSBOR, DSWDT, RTCC), which is the defining feature of the XLP family.
Key features include 32KB (11K x 24) of self-programmable Flash, 2KB of SRAM, 512 bytes of EEPROM, 17 general-purpose I/O pins, and a 12-bit A/D converter with up to 16 channels. Communication peripherals include UART, SPI, and I2C interfaces, while advanced features include a 5-channel 16-bit timer, capture/compare/PWM modules, a Configurable Logic Cell (CLC), and a CTMU (Charge Time Measurement Unit) for capacitive touch sensing. The device supports 3.3V and 5V operation with nanoWatt XLP power management that achieves sub-uA sleep currents.
The PIC24FV32KA302-E/SP uses a Modified Harvard architecture with a 16-bit data path and 24-bit instruction word, enabling efficient C code execution via the MPLAB XC16 compiler. The integrated 8 MHz internal RC oscillator with PLL provides 32 MHz operation, eliminating the need for external crystals in cost-sensitive applications while maintaining USB-friendly timing accuracy.
Typical applications include battery-powered IoT nodes, portable medical devices, sensor interface modules, capacitive touch user interfaces, and industrial control systems that require extended temperature operation. The wide 2.0V-5.5V range makes the device directly compatible with both 3.3V and 5V system rails.
When designing with this part, populate the ICSP programming header on the PCB even for factory-programmed parts, as firmware revisions may require field updates. The AVDD/AVSS pair should be tied to the main VDD/VSS rails via a ferrite bead or short trace when high ADC accuracy is required. The 'E' temperature grade qualifies the part for -40C to +125C operation, suitable for industrial and outdoor enclosures.
This page synthesizes distributor pricing, same-family drop-in alternatives in the SPDIP-28 footprint, and practical design notes not consolidated in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC24FV32KA302-E/SP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC24FV32KA302-E/SP (cùng hình factor và footprint) — khác nhau ở ADC, Package, EEPROM, Mounting Type, Operating Temperature.
PIC24FV32KA302-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FV32KA302-E/SP Tỷ lệ tối đa & tính chất điện
| Core | PIC24F 16-bit RISC, Modified Harvard architecture |
| Instruction Word | 24-bit |
| Data Path | 16-bit |
| Program Memory (Flash) | 32 KB (11K x 24) |
| RAM | 2 KB |
| EEPROM | 512 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 17 |
| ADC | 12-bit, up to 16 channels |
| Timers | 5 x 16-bit |
| Communication | UART, SPI, I2C |
| Special Features | CTMU, CLC, DSBOR, DSWDT, RTCC in Deep Sleep, ICSP |
| Oscillator | Internal 8 MHz RC with PLL |
| Nhiệt độ hoạt động | -40C to +125C (E grade) |
| Hộp | 28-pin SPDIP (0.300 inch / 7.62 mm row spacing) |
| Kiểu lắp đặt | Through-Hole |
| Trạng thái RoHS | Compliant |
| XLP Family | Yes (Deep Sleep sub-uA) |
Cấu hình chân PIC24FV32KA302-E/SP
| Chân 1 | RA4 — Port A bit 4 / CTMU input |
| Chân 2 | RA5 — Port A bit 5 / VREF+/CVREF+ |
| Chân 3 | RA6 — Port A bit 6 / OSCI |
| Chân 4 | RA7 — Port A bit 7 / OSCO |
| Chân 5 | RC0 — Port C bit 0 / AN6 |
| Chân 6 | RC1 — Port C bit 1 / AN7 |
| Chân 7 | RC2 — Port C bit 2 / AN8 |
| Chân 8 | RC3 — Port C bit 3 / AN9 |
| Chân 9 | RC4 — Port C bit 4 / AN10 |
| Chân 10 | RC5 — Port C bit 5 / AN11 |
| Chân 11 | RB0 — Port B bit 0 / AN0 |
| Chân 12 | VSS — Ground reference |
| Chân 13 | VDD — Positive supply (2.0V to 5.5V) |
| Chân 14 | RB1 — Port B bit 1 / AN1 |
| Chân 15 | RB2 — Port B bit 2 / AN2 |
| Chân 16 | RB3 — Port B bit 3 / AN3 |
| Chân 17 | RB4 — Port B bit 4 / AN4 |
| Chân 18 | RB5 — Port B bit 5 / AN5 |
| Chân 19 | RB6 — Port B bit 6 / ICSPCLK |
| Chân 20 | RB7 — Port B bit 7 / ICSPDAT |
| Chân 21 | RA0 — Port A bit 0 / AN0 |
| Chân 22 | RA1 — Port A bit 1 / AN1 |
| Chân 23 | RA2 — Port A bit 2 / VREF- |
| Chân 23 | RA2 — Port A bit 2 / VREF- (duplicate) |
| Chân 24 | RA3 — Port A bit 3 / VPP/MCLR |
Ứng dụng tiêu biểu
PIC24FV32KA302-E/SP phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, Portable Medical Monitoring Device, Industrial Sensor Interface Module, Smart Meter and Energy Monitoring, Automotive Auxiliary Controller.
Battery-Powered IoT Sensor Node
The PIC24FV32KA302-E/SP is well-suited for battery-powered IoT sensor nodes due to its XLP Deep Sleep current under 1 uA and 2.0V-5.5V wide-voltage operation from a single lithium or 2xAA battery. The 32KB Flash and 2KB RAM support typical sensor-fusion firmware including temperature/humidity/boundary acquisition, BLE driver code, and low-power protocol stacks (LoRaWAN, Zigbee, or proprietary Sub-GHz). The 17 GPIO easily accommodate I2C/SPI sensors, status LEDs, and wake-up interrupt sources. Power dissipation is minimized by entering Deep Sleep between transmissions while RTCC maintains a wake schedule. The 32 MHz core allows on-chip data compression before TX bursts, reducing radio on-time and extending battery life to years.
Được đề xuất
Capacitive Touch User Interface
The PIC24FV32KA302-E/SP integrates the CTMU peripheral which provides accurate charge-time measurement for capacitive touch sensing on up to 13 channels via the 17 GPIO. The 12-bit ADC enables proximity and slider gesture decoding without an external touch controller, reducing BOM cost. The wide 2.0V-5.5V supply tolerates noisy USB or battery rails common in appliance and consumer products. With 32 KB Flash, designers can host both capacitive-touch firmware and main product logic on a single chip, simplifying layouts in HMI panels, kitchen appliances, and industrial control keypads.
Được đề xuất
Portable Medical Monitoring Device
Medical wearables and portable monitors benefit from the PIC24FV32KA302-E/SP's extended -40C to +125C temperature grade, XLP nanoWatt power modes, and integrated 12-bit ADC for biosignal acquisition. The 32KB Flash stores small firmware stacks for pulse-oximetry, ECG pre-processing, or thermometry while 2KB RAM buffers sample data. The 5V tolerance protects against transients on body-coupled electrodes and battery chargers. The extended temperature grade supports storage at -40C (clinical refrigerators) and operation during fevers/elevated skin temperatures. CTMU supports touch-free proximity wake-up for clinician interaction.
Được đề xuất
Industrial Sensor Interface Module
The PIC24FV32KA302-E/SP is qualified for industrial automation with its -40C to +125C extended temperature range and 5V I/O tolerance for legacy sensor interfaces including 4-20 mA loops, 0-10V analog signals, and 24V digital inputs via external clamping. The 17 GPIO accommodate multiple sensor inputs, status LEDs, RS-485 transceivers, and isolated digital I/O. The CLC (Configurable Logic Cell) allows custom glue logic implementation directly on-chip, replacing external gates. Modbus RTU slave firmware fits easily in 32KB Flash, and the internal 8 MHz RC oscillator with PLL eliminates external crystals in cost-sensitive field installations.
Được đề xuất
Smart Meter and Energy Monitoring
Smart electricity meters and energy monitoring sub-systems leverage the PIC24FV32KA302-E/SP's 12-bit ADC for current/voltage sensing, EEPROM for non-volatile log storage (kWh readings survive power-down), and RTCC for time-of-use billing calculations. The 2.0V-5.5V range allows direct operation from a regulated DC bus or auxiliary supply. CTMQ can detect meter-tamper events via capacitance change, while the XLP Deep Sleep current keeps idle consumption below regulatory thresholds. The extended temperature grade supports -25C outdoor metering in cold climates and +55C inside distribution enclosures.
Được đề xuất
Automotive Auxiliary Controller
Body-of-system and aftermarket automotive electronics, including lighting controllers, HVAC panels, and seat-control units, can use the PIC24FV32KA302-E/SP for 5V-tolerant I/O interfacing with legacy 12V automotive rails via external transients/ESD protection. The -40C to +125C grade covers under-hood and cabin extremes from cold-start to summer sun exposure. CTMU supports touch-sensitive control surfaces, and the CLC implements custom logic without external gates. Note: This 'E' grade is industrial-extended, not full automotive-grade (AEC-Q100); for AEC-Q100, use the PIC24F32KA302-E/SP-Q variant or Microchip automotive PIC series.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FV32KA302-E/SP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC24FV32KA302-I/SP | PIC24FV32KA302-E/SO |
|---|---|---|---|
| Package | 28-SPDIP (0.300 inch) | 28-SPDIP (same) | 28-SOIC (different package, not pin-compatible) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB | 32 KB | 32 KB |
| RAM | 2 KB | 2 KB | 2 KB |
| EEPROM | 512 B | 512 B | 512 B |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
| I/O Pins | 17 | 17 | 17 |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| ADC | 12-bit, 16 channels | 12-bit, 16 channels | 12-bit, 16 channels |
Bảo phân biệt quan trọng
- Wide-voltage operation 2.0V-5.5V on the FV variant (vsPIC24F (standard variant))
- Extended temperature grade for harsh environments (vsPIC24FV32KA302-I/SP)
- CTMU peripheral for capacitive touch without external IC (vsDiscrete touch controller (AT42QT1010))
Ghi chú thiết kế
The XLP Deep Sleep current can drop below 1 uA when properly configured: disable all unused peripherals via PMD registers, set all unused GPIO as outputs driving low, and use RTCC alarm to wake. Estimated: at 3.3V with everything off and only RTCC active, expect ~800 nA. Use the datasheet Figure 31-15 ('Deep Sleep Current vs. Temperature') to verify against temperature extremes, since leakage rises at +85C and above.
Place a 100 nF decoupling capacitor within 3 mm of each VDD pin (pins 13 and 28 of the SPDIP-28), and a bulk 10 uF tantalum or ceramic cap on the same supply rail. The AVDD/AVSS pair (or shared VDD/VSS in this part) should be tied directly without ferrite beads for general applications; insert a ferrite only when ADC noise exceeds 1 LSB. ICSP header (RB6/RB7) should be brought out to a 6-pin header for in-circuit programming and debugging, even on factory-programmed parts.
Do not confuse the PIC24FV (wide voltage 2.0V-5.5V) with the PIC24F (1.8V-3.6V only); using the wrong variant at 5V will damage the part. The 'E' suffix indicates -40C to +125C extended grade; do not substitute with 'I' grade (-40C to +85C) for outdoor or industrial deployments. Pin 24 (MCLR/VPP) must be tied to VDD via a 10 kΩ pull-up for normal operation; leaving it floating prevents code execution. The configuration bits must be set correctly for the internal oscillator and PGx pins; defaults may not match your schematic.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page. 'E' grade is extended industrial (-40C to +125C), not AEC-Q100 automotive qualified. For AEC-Q100, use the Microchip automotive PIC24 family variants.
