PIC24FV32KA302-I/SP - 32KB Flash XLP 16-bit MCU 32MHz | Microchip
MPN: PIC24FV32KA302-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.68 | $5.68 |
| 10 | $5.21 | $52.10 |
| 100 | $4.42 | $442.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.42 | $3,420.00 |
PIC24FV32KA302-I/SP Overview
A 16-bit microcontroller is a single-chip computer whose arithmetic logic unit and internal datapath are 16 bits wide, providing roughly twice the throughput and richer peripheral integration than 8-bit MCUs while preserving low-power simplicity. Within the broader taxonomy, the PIC24FV32KA302-I/SP sits under: PIC24F family -> 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'FV' suffix indicates the wide-range Vdd variant, '32K' denotes the program memory size, and 'A302' identifies the 28/44-pin XLP generation.
Key features include 17 general-purpose I/O pins, a 12-bit Analog-to-Digital Converter with CTMU (Charge Time Measurement Unit), up to 6 PWM channels, configurable logic cells, and ultra-low-power Deep Sleep modes down to a few nanoamps using DSBOR, DSWDT, and RTCC peripherals. The integrated peripheral set also includes UART, SPI, I2C, and a 16-bit timer/counter block. The 28-SPDIP package is a 0.300-inch through-hole form factor favored for prototyping and legacy industrial hardware.
Typical applications are battery-powered sensor nodes, IoT end devices, low-power wireless sensor platforms, portable instrumentation, e-metering, and consumer HMI controllers. The AEC-Q100 variants exist in this family for automotive body and chassis systems.
Design with the PIC24FV32KA302-I/SP by enabling the on-board regulator, configuring the PPS (Peripheral Pin Select) module for flexible pin mapping, and choosing between internal 8 MHz or PLL-driven 32 MHz clock sources. Always allocate the dedicated MCLR pull-up, ensure decoupling with 100 nF plus 1 uF bulk caps on VDD, and respect the in-circuit serial programming (ICSP) pins for field firmware updates.
Drop-in alternatives for PIC24FV32KA302-I/SP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24FV32KA302-I/SP (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Program Memory (Flash), MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV32KA302-I/SO
✅ Drop-In✓ In Stock
$2.14 / Unit
View Datasheet →PIC24FV32KA302-E/SP
✅ Drop-In✓ In Stock
$3.45 / Unit
View Datasheet →PIC24FV32KA302-E/ML
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →PIC24FV32KA302-E/SO
✅ Drop-In✓ In Stock
$2.31 / Unit
View Datasheet →PIC24FV08KM102-I/SP
✅ Drop-In✓ In Stock
$1.97 / Unit
View Datasheet →PIC24FJ32GA002-I/SP
✅ Drop-In✓ In Stock
$2.31 / Unit
View Datasheet →PIC24FV32KA302-I/SP Maximum Ratings & Electrical Characteristics
| Family | PIC24F (XLP) |
| Core Architecture | 16-bit PIC24F RISC |
| Max CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| RAM | 2 KB |
| EEPROM | 512 B |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 17 |
| ADC | 12-bit |
| CTMU | Yes (Charge Time Measurement Unit) |
| Package | 28-pin SPDIP (0.300 inch, through-hole) |
| Operating Temperature | -40C to +85C (Industrial) |
| Mounting Type | Through-Hole |
| Lead-Free / RoHS | Lead-free, RoHS compliant |
| Peripherals | UART, SPI, I2C, PWM, RTCC, Comparators |
| MSL Level | 1 (Not moisture-sensitive for SPDIP) |
PIC24FV32KA302-I/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, drive low to reset |
| Pin 2 | RA0 — Port A bit 0 / analog input AN0 |
| Pin 3 | RA1 — Port A bit 1 / analog input AN1 |
| Pin 4 | RB0 — Port B bit 0 / analog input AN2 |
| Pin 5 | RB1 — Port B bit 1 / analog input AN3 |
| Pin 6 | RB2 — Port B bit 2 / analog input AN4 |
| Pin 7 | RB3 — Port B bit 3 / analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Crystal oscillator input or external clock input |
| Pin 10 | OSC2/CLKO — Crystal oscillator output or clock output |
| Pin 11 | RA2 — Port A bit 2 / analog input AN6 / CVREF+ |
| Pin 12 | RA3 — Port A bit 3 / analog input AN7 / CVREF- |
| Pin 13 | RA4 — Port A bit 4 |
| Pin 14 | AVDD — Analog supply voltage |
| Pin 15 | AVSS — Analog ground reference |
| Pin 16 | RA5 — Port A bit 5 |
| Pin 17 | RA6 — Port A bit 6 / oscillator |
| Pin 18 | RC0 — Port C bit 0 |
| Pin 19 | RC1 — Port C bit 1 |
| Pin 20 | RC2 — Port C bit 2 |
| Pin 21 | RC3 — Port C bit 3 |
| Pin 22 | RC4 — Port C bit 4 |
| Pin 23 | RC5 — Port C bit 5 |
| Pin 24 | RC6 — Port C bit 6 |
| Pin 25 | RC7 — Port C bit 7 |
| Pin 26 | RB4 — Port B bit 4 |
| Pin 27 | RB5 — Port B bit 5 / PGED3 ICSP data |
| Pin 28 | VDD — Positive supply voltage |
Typical Applications
PIC24FV32KA302-I/SP is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Portable Medical and Health Devices, Industrial Sensor and Data Logger Systems, Consumer HMI with Touch Control, Smart Home and Building Automation, Portable Test and Measurement Instrumentation.
Battery-Powered IoT Sensor Nodes
The PIC24FV32KA302-I/SP fits battery-powered IoT sensor nodes thanks to its eXtreme Low Power (XLP) Deep Sleep below 100 nA and wide 1.8V to 3.6V VDD range, which accepts two AA cells directly. Its 12-bit ADC plus CTMU supports capacitive touch sensing, time-of-flight distance measurement, and precision analog sensor reading from thermistors or strain gauges. In typical usage the device spends 99 percent of time in Deep Sleep waking only on RTCC or external interrupts, with active-mode current near 200 uA per MHz at 1 MIPS. Companion radio MPNs such as MRF24J40 or RN2483 LoRa modems connect over UART or SPI to form end-to-end wireless nodes. The 32 KB Flash easily fits ZigBee, LoRaWAN, or proprietary mesh stacks plus application firmware.
Recommended
Portable Medical and Health Devices
Medical and fitness devices such as blood pressure monitors, glucose meters, pulse oximeters, and wearable activity trackers leverage the PIC24FV32KA302-I/SP for its low-power MCU with deterministic 16 MIPS performance and 5V-tolerant I/O that simplifies sensor interfaces. The CTMU enables accurate temperature compensation via PT1000 RTD measurements, while the 12-bit ADC digitizes pulse-oximeter photodiode signals with 0.5 mV resolution at 3.3V. In an application circuit the MCU reads an analog front-end at 100 Hz, runs a moving-average filter in 2 KB RAM, and displays results on a character LCD driven from GPIOs. Designers meet IEC 60601-1 isolation requirements by keeping the MCU on the patient-isolated secondary side of a medical-grade DC-DC converter. Battery life of 6-12 months is achievable on two AA cells with the device's nanoWatt XLP modes.
Recommended
Industrial Sensor and Data Logger Systems
The PIC24FV32KA302-I/SP suits industrial sensor interfacing and data loggers thanks to its 32 KB Flash, 2 KB RAM, 12-bit ADC, and 17 GPIO with 5V tolerance. Field devices such as thermocouple scanners, RTU units, and Modbus slaves use the device to acquire multiple analog channels at 100 kS/s aggregate, store results in external EEPROM or SD cards, and report via RS-485. The wide VDD range tolerates 24V industrial bus power stepped down to 3.3V through switching regulators, while the CTMU simplifies resistive sensor excitation. In a typical four-channel 4-20 mA loop logger, the MCU oversamples at 1 kHz per channel, applies digital filtering in 2 KB RAM, and timestamps records via the RTCC. Operating temperature is -40C to +85C industrial grade, and the SPDIP-28 package simplifies through-hole assembly for harsh-environment enclosures.
Recommended
Consumer HMI with Touch Control
The PIC24FV32KA302-I/SP is well suited to consumer human-machine-interface panels that combine capacitive touch buttons, LED feedback, and small LCD or OLED displays. Its CTMU peripheral measures capacitance with 10-bit resolution using only a few external resistors, enabling reliable touch sensing through 5 mm plastic overlays without dedicated touch ICs. The 17 GPIO directly drive LED matrices, segment LCDs, or SPI-controlled OLED displays; 32 KB Flash accommodates GUI bitmaps plus capacitive-scan state machines. Typical applications include washing-machine control boards, microwave ovens, and smart thermostats with capacitive wheel input. Designers often pair the MCU with an RGB LED driver such as the LP8860 and a small SPI OLED over the dedicated SPI port, achieving smooth UI response at 16 MIPS while keeping total bill-of-materials cost under $3.
Recommended
Smart Home and Building Automation
Smart home devices such as thermostats, occupancy sensors, smart locks, and BLE beacons all fit the PIC24FV32KA302-I/SP profile of low power, integrated peripherals, and flexible GPIO mapping. The XLP Deep Sleep below 100 nA supports coin-cell battery operation for years in BLE beacon and door/window sensor roles. The 16 MIPS performance executes ZigBee or BLE stack plus application code in 32 KB Flash. Designers wire the MCU to PIR motion sensors, temperature/humidity sensors, and magnetic-reed switches via GPIOs and the 12-bit ADC, then communicate over UART to a BLE module like the RN4870. Real-time-clock functions such as time-stamped event logging are handled by the integrated RTCC even while the CPU sleeps, dramatically reducing average current draw in battery-powered wireless sensor designs.
Recommended
Portable Test and Measurement Instrumentation
Handheld multimeters, insulation testers, and process calibrators benefit from the PIC24FV32KA302-I/SP's combination of 12-bit ADC with CTMU and 5V-tolerant GPIOs that directly interface to op-amp output stages and range-switching relays. In typical usage the MCU samples at 50 kS/s, applies digital averaging in 2 KB RAM, drives a 128-segment custom LCD, and streams results over USB via a UART-to-USB bridge. The CTMU enables capacitance and resistance measurements with 0.1 percent basic accuracy using just a precision reference resistor. Wide 1.8V-3.6V VDD accepts 9V battery input through a buck regulator, while the SPDIP-28 through-hole package eases repair and rework in field-serviceable instruments. Combined with internal DSBOR/DSWDT for brown-out and watchdog protection, the device delivers a reliable compute platform for portable test gear.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV32KA302-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV32KA302-I/SO | PIC24FV32KA302-E/SP | PIC24FV32KA302-E/ML | PIC24FV32KA302-E/SO | PIC24FV08KM102-I/SP | PIC24FJ32GA002-I/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SPDIP-28 | SOIC-28 | SPDIP-28 - same | QFN-28 | SOIC-28 | SPDIP-28 - same | SPDIP-28 - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 8 KB | 32 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 8 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B | 0 B |
| Max 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) | 32 MHz (16 MIPS) |
| Supply 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 | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C |
| I/O Pins | 17 | 17 | 17 | 17 | 17 | 17 | 16 |
Key Differentiators
- eXtreme Low Power (XLP) Deep Sleep below 100 nA (vs PIC24FJ32GA002-I/SP)
- Wide VDD 1.8V to 3.6V range with 5V-tolerant I/O (vs PIC24FV32KA302-E/ML)
- Integrated CTMU for capacitive touch and time-of-flight sensing (vs PIC24FV08KM102-I/SP)
Design Notes
Decouple VDD and AVDD with a 100 nF ceramic capacitor placed within 5 mm of each pin plus a shared 1 uF to 10 uF bulk cap. The PIC24FV32KA302-I/SP has separate analog and digital supplies (AVDD/AVSS); tie them together at one point near the MCU with a ferrite bead or 10 ohm resistor to isolate analog switching noise. For battery-powered designs route DSBOR to handle brown-out events below 1.8V without losing RTCC state.
Place the ICSP pins (PGD/PGC) on accessible test points or 0.1 inch header to enable field firmware updates. The MCLR pin must have a 10 kohm pull-up to VDD and a 100 nF cap to ground for in-circuit programming reliability. For SPDIP-28 prototypes use a through-hole socket so the MCU can be swapped during development.
Do not exceed 5.5V on any 5V-tolerant I/O pin even though VDD is limited to 3.6V; absolute maximum ratings apply to digital inputs independently. Avoid powering the MCU above 3.6V with the internal regulator enabled since this disables the regulator's 3.3V output to the core. When using the CTMU for capacitive sensing, calibrate zero and gain offsets per PCB layout to compensate for parasitic capacitance.
Keep analog input traces short and guarded by ground planes to minimize ADC noise pickup. Route the 32.768 kHz RTCC crystal within 5 mm of SOSCO/SOSCI pins with a grounded guard ring on the PCB layer directly beneath; stray capacitance above 5 pF will shift the oscillator frequency. Estimated: at 25C a 1 pF shift introduces roughly 0.2 second per day timekeeping error.
Compliance Information
RoHS-compliant and lead-free per Microchip product page. Industrial -I temperature grade (-40C to +85C); -E grade variants extend to +125C but are not AEC-Q100 qualified. For automotive AEC-Q100 applications use PIC24FV32KA302-E/SP automotive-class parts or move to dsPIC33 families.
