PIC24FV16KA302T-I/SO - 16-bit MCU, 32MHz, 16KB Flash | Microchip
MPN: PIC24FV16KA302T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.47 | $34.70 |
| 100 | $3.08 | $308.00 |
| 500 | $2.74 | $1,370.00 |
| 1,000 | $2.44 | $2,440.00 |
PIC24FV16KA302T-I/SO Overview
A 16-bit microcontroller (MCU) is a microprocessor that processes data and addresses in 16-bit widths, providing higher throughput and richer peripherals than 8-bit MCUs while consuming less power than many 32-bit parts. PIC24F devices belong to the broader category of microcontrollers (MCUs) within integrated circuits (ICs), positioned between 8-bit PIC16/PIC18 and 32-bit PIC32 in Microchip's portfolio. The XLP (eXtreme Low Power) designation indicates ultra-low sleep current with peripheral operation in Deep Sleep mode.
Key features include 17 general-purpose I/O pins, a 12-bit ADC with 16 channels supporting up to 500 ksps conversion rate, a Charge Time Measurement Unit (CTMU) for capacitive touch sensing, multiple communication interfaces (UART, I2C, SPI), 5 CCP/ECCP modules, RTCC with Deep Sleep, and on-chip DSBOR/DSWDT low-power brown-out and watchdog timers. The PIC24FV variant supports 5V operation on I/O lines, enabling direct interface to legacy 5V systems.
The PIC24FV16KA302T-I/SO uses a modified Harvard RISC architecture with a 16-bit wide datapath and dual-bus memory fetch, executing most instructions in one cycle. The 16 KB self-programmable Flash supports ICSP (In-Circuit Serial Programming) via PGECx/PGEDx pin pairs, with code-protection features that prevent unauthorized read-back. CTMU hardware enables mTouch capacitive touch sensing with no external components beyond sensor electrodes.
Typical applications include battery-powered sensor nodes, capacitive touch user interfaces, low-power IoT endpoints, consumer electronics with 5V mixed-signal interfaces, and industrial control modules requiring 16-bit math performance with extended battery life.
When designing with this part, place a 0.1 µF decoupling capacitor as close to VDD as possible. Use the RTCC with Deep Sleep to wake the MCU at scheduled intervals, keeping active current below the 1 µA Deep Sleep range for maximum battery life.
This page synthesizes XAIPART distributor pricing, drop-in PIC24F family alternatives, CTMU/Deep Sleep design notes, and cross-brand comparisons not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FV16KA302T-I/SO — 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 PIC24FV16KA302T-I/SO (same form factor and footprint) — differing in Package, ADC, CTMU, RoHS Status, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV16KA302-I/SO
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC24FV16KA302T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV16KA302T-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.2 / Unit
View Datasheet →PIC24FV16KA301-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV16KA302-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.41 / Unit
View Datasheet →PIC24FV16KA302T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC (Harvard) |
| Program Memory (Flash) | 16 KB (5.5K x 24) |
| Data RAM | 2 KB |
| EEPROM | 512 B |
| Maximum Clock Speed | 32 MHz (16 MIPS at 3.3V, 32 MHz operation) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Voltage Tolerance | 5 V tolerant |
| Number of I/O Pins | 17 |
| ADC | 12-bit, 16 channels, 500 ksps |
| CTMU | Yes (Charge Time Measurement Unit for mTouch) |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C |
| Timers | 5 CCP/ECCP modules |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 28-pin SOIC (7.50 mm) |
| Mounting Type | Surface Mount |
| ROM Type | Flash |
| MSL Level | 1 |
| RoHS Status | Compliant (Lead-free) |
PIC24FV16KA302T-I/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, drive low to reset |
| Pin 2 | RA0 — Port A bit 0 / ICSPDAT |
| Pin 3 | RA1 — Port A bit 1 / ICSPCLK |
| Pin 4 | RA2 — Port A bit 2 |
| Pin 5 | RA3 — Port A bit 3 |
| Pin 6 | RA4 — Port A bit 4 |
| Pin 7 | RA5 — Port A bit 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input or external clock |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RB0 — Port B bit 0 / PGD |
| Pin 12 | RB1 — Port B bit 1 / PGC |
| Pin 13 | RB2 — Port B bit 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB5 — Port B bit 5 |
| Pin 16 | RB6 — Port B bit 6 / ICSPCLK |
| Pin 17 | RB7 — Port B bit 7 / ICSPDAT |
| Pin 18 | RB8 — Port B bit 8 |
| Pin 19 | RB9 — Port B bit 9 |
| Pin 20 | VCAP — Voltage regulator capacitor (1.8V internal core) |
| Pin 21 | RB10 — Port B bit 10 |
| Pin 22 | RB11 — Port B bit 11 |
| Pin 23 | RC0 — Port C bit 0 |
| Pin 24 | RC1 — Port C bit 1 |
| Pin 25 | RC2 — Port C bit 2 |
| Pin 26 | RC3 — Port C bit 3 |
| Pin 27 | RC4 — Port C bit 4 |
| Pin 28 | VDD — Positive supply (1.8V to 3.6V) |
Typical Applications
PIC24FV16KA302T-I/SO is suitable for 6 applications: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, 5V Mixed-Voltage Industrial Control, Portable Medical Monitoring Device, Consumer Appliance HMI Module, Smart Sensor with UART/SPI Bridge.
Battery-Powered IoT Sensor Node
The PIC24FV16KA302T-I/SO excels in IoT sensor endpoint designs that must run on a coin-cell or 2x AA battery for years. Its XLP Deep Sleep current of approximately 0.9 µA (with RTCC active) lets the MCU wake every few seconds to read a sensor via ADC and return to sleep, consuming microamp-level average current. The 16-bit architecture delivers enough MIPS to run local filtering on sensor data before transmission, offloading the radio MCU. The 5V-tolerant I/O is valuable when interfacing with 3.3V sensors that may be exposed to 5V signals from external connectors, eliminating level shifters.
Recommended
Capacitive Touch User Interface
The PIC24FV16KA302T-I/SO is purpose-built for capacitive touch user interfaces thanks to its integrated CTMU (Charge Time Measurement Unit) peripheral. The CTMU, combined with the 12-bit ADC and Microchip's mTouch software library, allows engineers to implement up to 12 touch buttons or a slider/proximity sensor using only copper pads on the PCB - no external touch ICs required. The 32 MHz CPU executes the mTouch scanning algorithm fast enough to handle 12 buttons at 100 Hz refresh with margin for additional GPIO-driven LED feedback.
Recommended
5V Mixed-Voltage Industrial Control
Industrial control modules frequently need to interface with legacy 5V sensors, displays, and communication buses. The PIC24FV16KA302T-I/SO's 5V-tolerant digital I/O pins can directly accept 5V logic signals while running on a 1.8-3.6V VDD core supply, eliminating external level shifters and reducing BOM cost. The 16-bit arithmetic performance handles PID loops and signal conditioning in real time at 16 MIPS. The 17 GPIO pins are sufficient for mid-complexity control boards with relays, status LEDs, and UART communication to a host controller.
Recommended
Portable Medical Monitoring Device
Wearable and portable medical monitoring devices such as pulse oximeters, glucose meters, and thermometers benefit from the PIC24FV16KA302T-I/SO's combination of 16-bit precision, 5V-tolerant I/O for legacy sensor interfaces, and XLP Deep Sleep current. The 12-bit ADC with 16 channels supports multi-signal acquisition (e.g., pulse, temperature, battery voltage), while the 32 MHz CPU enables on-device signal processing to reduce data transmission rate and improve battery life. The -40 to +85 C industrial temperature range handles body-worn and clinical environments.
Recommended
Consumer Appliance HMI Module
Consumer appliances (coffee machines, washing machines, smart thermostats) need a low-cost 16-bit MCU with capacitive touch input for modern glass-front user interfaces. The PIC24FV16KA302T-I/SO delivers this with its CTMU touch engine supporting mTouch buttons and sliders behind glass or plastic overlays. The 5V-tolerant I/O allows direct drive of TRIAC control signals and 5V status LEDs without level translation. The 16 KB Flash holds the application code, touch firmware, and UI state machine for typical appliance user interfaces with 5-8 touch zones.
Recommended
Smart Sensor with UART/SPI Bridge
Smart sensor designs that aggregate multiple analog/digital sensor inputs and provide a unified UART or SPI interface to a host processor benefit from the PIC24FV16KA302T-I/SO's mixed-signal capabilities. The 12-bit 16-channel ADC handles multiple sensor inputs, the CTMU supports touch/proximity wake events, and 2x UART plus 2x SPI/I2C interfaces provide flexible host connectivity. The 5V-tolerant I/O enables direct connection to legacy 5V industrial hosts, while 3.3V operation keeps the MCU power budget low.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KA302T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV16KA302-I/SO | PIC24FV16KA302T-I/SS | PIC24FV16KA301-I/SO | PIC24FV16KA302-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SSOP - smaller footprint | 28-SOIC - same | 28-SSOP - smaller footprint |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 1.5 KB (-25%) | 2 KB |
| CPU Clock | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| 5V-Tolerant I/O | Yes | Yes | Yes | Yes | Yes |
| CTMU Touch Engine | Yes | Yes | Yes | Yes (reduced channels) | Yes |
| Supply Voltage Range | 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 |
| Unit Price (qty 1) | $3.85 | $3.85 (tube) | $3.95 | $3.65 (-5%) | $3.95 |
Key Differentiators
- 5V-tolerant I/O without level shifters (vs PIC24F16KA302 (non-V variant))
- Same-family drop-in with smaller footprint (vs PIC24FV16KA302T-I/SS (28-SSOP))
- Cost-optimized variant with reduced RAM (vs PIC24FV16KA301-I/SO)
Design Notes
The PIC24FV16KA302T-I/SO's XLP Deep Sleep current at approximately 0.9 µA with RTCC active is achieved by disabling all peripherals except RTCC. Connect a 32.768 kHz crystal to the SOSC pins (configured per datasheet) for accurate timekeeping. Place a 0.1 µF decoupling capacitor as close as possible to VDD (pin 28), with a bulk 1-10 µF tantalum or ceramic cap nearby for transient suppression when waking from sleep.
Place the VCAP pin 20 decoupling capacitor (1.8 V internal regulator output) as close as possible to the pin - typically a 10 µF ceramic with ESR below 1 ohm. Route ICSP signals (PGECx/PGEDx) on inner layers if possible to reduce EMI. The 28-SOIC package has sufficient thermal performance for typical 16 MIPS operation; no thermal management beyond standard PCB copper pours is required for commercial temperature range operation.
Do not confuse PIC24FV16KA302 (5V-tolerant) with PIC24F16KA302 (non-V variant, 3.3V-only I/O) when designing mixed-voltage systems. The 'V' suffix is critical for 5V interface compatibility. Also note that the CTMU peripheral requires calibration via the mTouch library - reference Microchip AN1250 and TB3065 for proper calibration procedures to achieve accurate capacitive touch measurements. Using ICSP programming requires pull-ups on PGC/PGD lines per the in-circuit debugger specification.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40 to +85 C temperature range (not AEC-Q100 automotive qualified). Halogen-free per Microchip environmental compliance documentation.
