PIC24FV16KA302T-I/ML - 16-bit XLP MCU, 32MHz, 16KB Flash | Microchip
MPN: PIC24FV16KA302T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.78 | $278.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.2 | $2,200.00 |
PIC24FV16KA302T-I/ML Overview
What is a Microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM and EEPROM), and programmable peripherals on one die. An MCU hierarchy looks like: 16-bit MCU -> microcontroller -> embedded controller -> semiconductor -> integrated circuit. The 16-bit MCU class typically delivers 10-100 MIPS with deterministic interrupt response, sitting between 8-bit MCUs (lower cost, lower performance) and 32-bit ARM Cortex-M MCUs (higher performance, larger code). The PIC24F family is renowned for ultra-low-power XLP technology with sub-uA deep-sleep current.
Key differentiating features include eXtreme Low Power (XLP) technology with sub-uA Deep Sleep current, 12-bit ADC with up to 16 channels, Charge Time Measurement Unit (CTMU) for capacitive touch sensing, Real-Time Clock and Calendar (RTCC) that runs even in Deep Sleep mode, plus DSBOR and DSWDT (Deep Sleep Brown-Out Reset and Deep Sleep Watchdog Timer). The 'T' suffix denotes tape-and-reel packaging; the 'I' indicates the industrial -40 °C to +85 °C operating temperature range.
The device is built on a Harvard-architecture PIC24F CPU core with 16-bit instructions, allowing compact code density. The CTMU peripheral enables touch buttons, sliders, and proximity sensing. The integrated RTCC eliminates external clock chips for time-stamped data logging in low-power products. With 17 user I/O pins in the 28-QFN variant, the device provides flexible mixed-signal design.
Typical applications include IoT sensor nodes, wearable fitness devices, handheld instrumentation, low-power wireless sensor networks, capacitive touch user interfaces, and battery-powered industrial data loggers. The Deep Sleep modes with running RTCC enable years of operation from a single coin cell.
When designing with this MCU, choose the device's integrated RTCC over external RTC chips when PCB real estate and BOM cost matter. Always characterize sleep-mode entry/exit timing against worst-case Wake-from-Sleep scenarios. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC24FV16KA302T-I/ML — 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/ML (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Timers, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV16KA302-I/ML
✅ Drop-In✓ In Stock
$2.04 / Unit
View Datasheet →PIC24FV32KA302-I/ML
✅ Drop-In✓ In Stock
$2.71 / Unit
View Datasheet →PIC24F16KA302-I/ML
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC24FV16KA302T-I/SO
✅ Drop-In✓ In Stock
$2.44 / Unit
View Datasheet →PIC24FV16KA302T-I/MLVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV16KA302T-I/ML Maximum Ratings & Electrical Characteristics
| Core | PIC24F 16-bit RISC |
| CPU Family | PIC® XLP™ 24F |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 16 KB (5.5K x 24) |
| SRAM | 2 KB |
| EEPROM | 512 B |
| Supply Voltage | 1.8 V to 3.6 V |
| I/O Pins | 17 |
| ADC | 12-bit, up to 16 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (runs in Deep Sleep) |
| DSBOR / DSWDT | Yes (Deep Sleep BOR + WDT) |
| Package | 28-QFN (6x6 mm), ML suffix |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Lead-Free / RoHS | Lead-Free, RoHS Compliant |
| XLP Technology | Yes (eXtreme Low Power) |
PIC24FV16KA302T-I/ML Pin Configuration
| Pin 1 | OSCI/CLKI/RA3 — Oscillator crystal input or digital I/O |
| Pin 2 | OSCO/CLKO/RA2 — Oscillator crystal output or digital I/O |
| Pin 3 | RA1 — Digital I/O |
| Pin 4 | RA0 — Digital I/O |
| Pin 5 | VSS — Ground reference |
| Pin 6 | VDD — Positive supply voltage (1.8-3.6 V) |
| Pin 7 | RB15 — Digital I/O |
| Pin 8 | RB14 — Digital I/O |
| Pin 9 | RB13 — Digital I/O / AN13 |
| Pin 10 | RB12 — Digital I/O / AN12 |
| Pin 11 | RB11 — Digital I/O / AN11 |
| Pin 12 | RB10 — Digital I/O / AN10 |
| Pin 13 | RB9 — Digital I/O / AN9 |
| Pin 14 | RB8 — Digital I/O / AN8 |
| Pin 15 | RB7 — Digital I/O / AN7 |
| Pin 16 | RB6 — Digital I/O / AN6 |
| Pin 17 | RB5 — Digital I/O / AN5 |
| Pin 18 | RB4 — Digital I/O / AN4 |
| Pin 19 | RB3 — Digital I/O / AN3 |
| Pin 20 | RB2 — Digital I/O / AN2 |
| Pin 21 | RB1 — Digital I/O / AN1 |
| Pin 22 | RB0 — Digital I/O / AN0 |
| Pin 23 | RA9 — Digital I/O |
| Pin 24 | RA10 — Digital I/O |
| Pin 25 | RA4 — Digital I/O |
| Pin 26 | RA7 — Digital I/O |
| Pin 27 | RA6 — Digital I/O |
| Pin 28 | RA5 — Digital I/O |
Typical Applications
PIC24FV16KA302T-I/ML is suitable for 6 applications: IoT Wireless Sensor Node, Wearable Fitness Tracker, Capacitive Touch User Interface, Battery-Powered Industrial Data Logger, Handheld Medical Monitoring Device, Low-Power Wireless Sensor Network Endpoint.
IoT Wireless Sensor Node
The PIC24FV16KA302T-I/ML is a great fit for IoT sensor nodes: its 1.8-3.6 V wide VDD range accepts single-cell Li-ion or 2xAA battery stacks directly without an LDO. The 32 MHz / 16 MIPS core handles sensor fusion, encryption, and radio protocol stacks in real time. XLP Deep Sleep current in the nano-amp range combined with the always-on RTCC enables multi-year battery life. Typical design uses 17 user I/O to drive SPI/IO2 sensors, a UART radio module, and status indicators. Holtek power design tip: duty-cycle the radio transmit at less than 1 percent to maximize battery life. Per the PIC24FV16KA304 family datasheet, integrating the CTMU allows capacitive moisture and proximity sensing without extra analog front-end ICs, reducing BOM cost by approximately $0.50 per node.
Recommended
Wearable Fitness Tracker
The PIC24FV16KA302T-I/ML fits wearable fitness trackers because of its XLP sub-uA Deep Sleep current and wide 1.8-3.6 V supply that pairs with coin-cell and Li-Po batteries. The 12-bit ADC with up to 16 channels reads heart-rate, motion, and skin-temperature sensors simultaneously. The CTMU enables capacitive touch buttons and gesture sensing on the wristband without mechanical switches. With 17 user I/O, the MCU can drive an SPI OLED display, an IO2 accelerometer, and a Bluetooth Low Energy radio. The integrated RTCC keeps accurate timestamps in sleep logs. Trade-off: a 32-bit Cortex-M0+ might offer faster DSP for advanced heart-rate variability algorithms, but the PIC24F's lower cost and simpler toolchain are compelling for entry-to-consumer wearables.
Recommended
Capacitive Touch User Interface
The PIC24FV16KA302T-I/ML is ideal for capacitive touch user interfaces thanks to its integrated CTMU peripheral, which measures capacitance with femto-farad sensitivity using the 12-bit ADC. This enables reliable touch buttons, sliders, and wheel encoders without dedicated touch ICs, reducing BOM cost and PCB area. The 32 MHz core can poll up to 16 touch channels every 8 ms with sub-1 percent CPU load. The 1.8-3.6 V supply supports battery-powered, ranging to USB-powered, ranging to 24V industrial panels with appropriate front-end scaling. Trade-off: the CTMU requires careful PCB layout with ground flooding under touch pads; follow the Microchip AN2189 application note layout guidelines for noise-immune environmental designs.
Recommended
Battery-Powered Industrial Data Logger
The PIC24FV16KA302T-I/ML fits battery-powered industrial data loggers because of its always-on RTCC that timestamps measurements during Deep Sleep, eliminating external RTC chips. The wide 1.8-3.6 V supply operates from 2xAA or single-cell Li-ion for multi-year deployments. With 17 user I/O, the device can drive IO2/SPI temperature, humidity, and pressure sensors plus a micro-SD card interface. The 12-bit ADC with 16 channels handles simultaneous multi-sensor sampling. The 16 KB Flash stores weeks of compressed data; upgrade to PIC24FV32KA302-I/ML for months of storage. Holtek power design tip: use the DSWDT to recover from software hangs in remote deployments without field service calls.
Recommended
Handheld Medical Monitoring Device
The PIC24FV16KA302T-I/ML is suitable for handheld medical monitoring devices such as pulse oximeters, glucose meters, and spirometers, where its 12-bit ADC provides sufficient resolution for clinical-grade sensor readings and its XLP technology supports battery operation through a clinic shift. The CTMU enables capacitive touch buttons for hygienic, sealed user interfaces. The 16-bit core runs real-time DSP for heart-rate and respiration algorithms. With 17 user I/O, the device connects to SPI/IO2 sensors, UART/BLE radios, and segmented LCDs. Trade-off: FDA/IEC 62304 compliance requires additional firmware V&V, but the PIC24F family has established use in FDA-cleared devices. Per the PIC24FV16KA304 family datasheet, the RTCC enables accurate time-stamping for diagnostic records.
Recommended
Low-Power Wireless Sensor Network Endpoint
The PIC24FV16KA302T-I/ML is a strong fit for low-power wireless sensor network endpoints, where its XLP sub-uA Deep Sleep current combined with a sub-GHz or BLE radio enables multi-year coin-cell operation. The 32 MHz core runs ZigBee, LoRa, BLE stack, or proprietary protocols. The 17 user I/O provides flexible IO2/SPI/UART sensor and radio connectivity. Per the PIC24FV16KA304 family datasheet, the integrated RTCC enables synchronized time-slot protocols without external RTC. Holtek trade-off: at 16 MIPS, this MCU handles low-rate sensor telemetry well; high-rate audio/video streaming requires 32-bit Cortex-M4-class performance.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KA302T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV16KA302-I/ML | PIC24FV32KA302-I/ML | PIC24F16KA302-I/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Flash Memory | 16 KB | 16 KB | 32 KB | 16 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B |
| Supply Voltage | 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 |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| I/O Pins | 17 | 17 | 17 | 17 |
| ADC | 12-bit, 16 ch | 12-bit, 16 ch | 12-bit, 16 ch | 12-bit, 16 ch |
| CTMU | Yes | Yes | Yes | Yes |
Key Differentiators
- Widest supply voltage range in family (vs PIC24F16KA302-I/ML)
- Half the Flash of nearest upgrade (vs PIC24FV32KA302-I/ML)
- Industrial -40 to +85 °C grade (vs PIC24FV16KA302T-I/MLVAO)
Design Notes
Estimated: at VDD=3.3 V and CPU active at 32 MHz, core current is approximately 8 mA per the PIC24FV16KA304 family datasheet. In Deep Sleep mode, total current drops to sub-uA (typically 20-100 nA) with RTCC running. For battery-powered designs, duty-cycle the CPU below 1 percent to maximize runtime. Always use DSBOR (Deep Sleep Brown-Out Reset) to recover from low-voltage brown-out conditions during sleep, especially on battery-powered systems where VDD can sag unpredictably.
For the 28-QFN (6x6 mm) package, Microchip recommends a 4-layer PCB with continuous ground plane under the package thermal pad. The exposed pad must be soldered to the ground plane for mechanical and thermal reliability. Decoupling: place a 100 nF ceramic capacitor within 3 mm of VDD pin 6, plus a 10 uF bulk capacitor near the supply rail. For CTMU capacitive touch designs, follow AN2189 guidelines with ground flooding around touch pads and no ground pour under the touch electrode itself.
Do not exceed the absolute maximum VDD of 3.6 V on the 'FV' variant; the device is NOT 5 V tolerant on I/O. For programming/debugging, use the ICSP interface with PGECX/PGEDX pins - these are 3.3 V logic, not 5 V. Configuration bits must be set before code runs; an unconfigured device will not execute user code. For production programming, use Microchip's MPLAB X IPE or a third-party programmer with the latest device database. Watch out for the VDD rise minimum that will start the BOR correctly.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40 to +85 °C operating temperature. AEC-Q100 not applicable for industrial-grade part; choose PIC24FV16KA302T-I/MLVAO suffix for automotive.
