PIC24FV16KA302-I/SS - 16-Bit XLP MCU, 16KB Flash, 28-SSOP | Microchip
MPN: PIC24FV16KA302-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.87 | $3.87 |
| 10 | $3.61 | $36.10 |
| 100 | $3.18 | $318.00 |
| 500 | $2.79 | $1,395.00 |
| 1,000 | $2.41 | $2,410.00 |
PIC24FV16KA302-I/SS Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and on-chip peripherals such as timers, ADC, communication interfaces, and I/O. The PIC24F family uses a 16-bit modified Harvard RISC architecture that delivers up to 16 MIPS while retaining the PIC instruction set's deterministic, single-cycle characteristics. XLP variants add power-management hardware such as Deep Sleep mode with DSBOR (Deep Sleep Brown-Out Reset), DSWDT (Deep Sleep Watchdog Timer), and a real-time clock calendar (RTCC) that runs while the core is asleep.
Key features include 16KB (5.5K x 24) self-programmable Flash, 2KB SRAM, 512 bytes EEPROM, a 12-bit ADC with up to 16 input channels, a Charge Time Measurement Unit (CTMU) for capacitive touch and precise timing, and a 17-bit Single Cycle 16x16 Multiply hardware engine. The 5V-tolerant I/O allows direct interface with legacy 5V logic or analog signal-conditioning front-ends without level shifters.
The architecture supports two supply rails — a 3.3V VDD for the core and an optional 5V-tolerant AVDD for analog — and peripherals include UART, SPI, I2C, and a parallel master port (PMP). Microchip's MPLAB X IDE with the XC16 compiler provides a full tool chain for code development and on-chip debugging, including built-in support for the device's unique low-power modes.
Typical applications include low-power wireless sensor nodes, battery-powered medical instruments such as glucose meters, e-metering data loggers, and consumer remote controls. The CTMU and 12-bit ADC combination also suits capacitive-touch user interfaces. The 28-SSOP package gives a 0.65 mm pitch and a low ~1.75 mm profile, making it suitable for compact hand-held enclosures.
When designing with the PIC24FV16KA302-I/SS, evaluate the VDD/AVDD decoupling network (typically 0.1 µF X7R per rail plus 10 µF bulk) and route the analog and digital grounds as a star to minimize ADC noise. Verify that the chosen sleep mode meets the application's average current budget — Deep Sleep draws only nanoamps while still waking on RTCC or external interrupts.
This page synthesizes distributor pricing, drop-in PIC24F/dsPIC alternatives in the same SSOP-28 footprint, and practical low-power design notes not collected in the manufacturer datasheet.
Drop-in alternatives for PIC24FV16KA302-I/SS — 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 PIC24FV16KA302-I/SS (same form factor and footprint) — differing in Package, Program Memory (Flash), Core Architecture, ADC, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV16KA302-I/SO
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC24FV16KA302-I/ML
✅ Drop-In✓ In Stock
$2.04 / Unit
View Datasheet →PIC24FV16KA302-E/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC24FV16KA301-I/P
✅ Drop-In✓ In Stock
$1.6 / Unit
View Datasheet →PIC24FJ64GA002-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.51 / Unit
View Datasheet →PIC24FV16KA302-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Core Performance | 16 MIPS @ 32 MHz |
| Program Memory (Flash) | 16 KB (5.5K x 24 words) |
| Data Memory (SRAM) | 2 KB |
| EEPROM | 512 bytes |
| Supply Voltage (VDD) | 1.8 V to 3.6 V (F-version) |
| Wide Operating Voltage (FV) | 1.8 V to 5.5 V (5V-tolerant I/O) |
| I/O Pins | 17 (multi-plexed, 5V-tolerant) |
| ADC | 12-bit, up to 16 channels, 500 ksps |
| CTMU | Yes (capacitive touch / time measurement) |
| RTCC | Yes, runs in Deep Sleep |
| Deep Sleep Brown-Out Reset (DSBOR) | Yes |
| Deep Sleep Watchdog Timer (DSWDT) | Yes |
| Communication Peripherals | UART, SPI, I2C, Parallel Master Port |
| Hardware Multiplier | 17-bit x 17-bit, single cycle |
| Operating Temperature | -40 C to +85 C (industrial) |
| Package | 28-pin SSOP (5.30 mm body, 0.65 mm pitch) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited floor life) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FV16KA302-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| Pin 2 | RA0 — Digital I/O / AN0 / CVref / ICDPGDATA |
| Pin 3 | RA1 — Digital I/O / AN1 / Vref- / CVref+ |
| Pin 4 | RB0 — Digital I/O / PGED1 / AN2 / CTDIN |
| Pin 5 | RB1 — Digital I/O / PGEC1 / AN3 / CTED1 |
| Pin 6 | RB2 — Digital I/O / AN4 / CTED2 |
| Pin 7 | RB3 — Digital I/O / AN5 / CTED3 / RTCC |
| Pin 8 | VDD — Positive supply (1.8V-5.5V for FV variant) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB4 — Digital I/O / AN6 / SDA1 |
| Pin 11 | RB5 — Digital I/O / AN7 / SCL1 |
| Pin 12 | RB6 — Digital I/O / AN8 / PGC2 / ICDPGCLK |
| Pin 13 | RB7 — Digital I/O / AN9 / PGD2 / ICDPGDATA |
| Pin 14 | RA2 — Digital I/O / AN10 / CVref+ / Vcap |
| Pin 15 | RA3 — Digital I/O / AN11 / Vref- / CVref- |
| Pin 16 | RA4 — Digital I/O / AN12 / TOCKI / RTCC |
| Pin 17 | RA5 — Digital I/O / AN13 / SOSCO / RTCC |
| Pin 18 | RA6 — Digital I/O / AN14 / SOSCI |
| Pin 19 | RA7 — Digital I/O / AN15 / OSC1 / CLKIN |
| Pin 20 | VSS — Ground reference (second pin) |
| Pin 21 | VDD — Positive supply (second pin) |
| Pin 22 | RC0 — Digital I/O / AN16 / INT0 |
| Pin 23 | RC1 — Digital I/O / AN17 / INT1 / U1RTS |
| Pin 24 | RC2 — Digital I/O / AN18 / INT2 / U1CTS |
| Pin 25 | RC3 — Digital I/O / AN19 / U1TX |
| Pin 26 | RC4 — Digital I/O / AN20 / U1RX |
| Pin 27 | RC5 — Digital I/O / AN21 / U2TX |
| Pin 28 | RC6 — Digital I/O / AN22 / U2RX |
Typical Applications
PIC24FV16KA302-I/SS is suitable for 6 applications: Battery-Powered Wireless Sensor Nodes, Portable Medical Measurement Devices, Industrial e-Metering and Data Loggers, Consumer Remote Controls and HIDs, Capacitive Touch User Interface Panels, IoT Edge Sensor Hubs.
Battery-Powered Wireless Sensor Nodes
The PIC24FV16KA302-I/SS is a strong fit for coin-cell sensor nodes because its XLP (eXtreme Low Power) technology drops Deep Sleep current into the nanoamp range while leaving the RTCC, DSWDT, and DSBOR active. The 1.8-5.5 V supply accepts a single 3 V coin cell or 2 x AA alkaline cells with no LDO required. The 16 MIPS performance handles Zigbee/LoRa sub-GHz host-side protocol timing, and the CTMU allows accurate temperature and battery-voltage sensing without external parts. Compared with switching to a Cortex-M0+ alternative, the PIC24FV16KA302 keeps the wake/sleep transition overhead under 1 µs, which dominates total energy budget in sparse-reporting sensors.
Recommended
Portable Medical Measurement Devices
Glucose meters, pulse oximeters, and similar Class II/III portable medical instruments benefit from the PIC24FV16KA302-I/SS 5V-tolerant I/O, which simplifies interfacing to legacy analog front ends and 5V analog signal conditioning. The integrated 12-bit ADC at 500 ksps with dedicated 1.024 V internal reference provides adequate resolution for photometric and impedance measurements. The CTMU generates precise micro-amp source currents for thermistor or conductivity measurement. With 16 KB Flash and 2 KB SRAM, the device runs a small RTOS or state-machine firmware plus capacitive-touch UI on a single MCU. XLP Deep Sleep keeps the average current budget low enough for multi-month battery life on AAA cells.
Recommended
Industrial e-Metering and Data Loggers
Electricity, gas, and water meters built around the PIC24FV16KA302-I/SS leverage the device's 16 MIPS core, the RTCC with calendar retention in Deep Sleep, and 512 bytes of EEPROM for tamper-evident event logging without an external RTC or NVM. The 5V-tolerant I/O drives opto-isolators directly for AC line sensing. The 12-bit ADC samples CT/PT outputs at rates sufficient for class-1 metering accuracy when combined with the on-chip DSP accumulator peripherals. Designers benefit from Microchip's class-B and IEC 60730 firmware libraries, which are pre-validated for safety-integrity use with this PIC24F XLP family.
Recommended
Consumer Remote Controls and HIDs
Infrared and Bluetooth Low Energy remote controls pair naturally with the PIC24FV16KA302-I/SS thanks to its nanoamp Deep Sleep (enabling multi-year battery life on two AAAs), the 32 MHz core for IR carrier generation, and the CTMU which can scan up to 16 capacitive touch keys without an external touch controller. The UART/SPI/I2C set interfaces to BLE companion ICs and IR LEDs without glue logic, and the 28-SSOP fits the slim industrial-design footprint typical of remote-control PCBs. Flash is plenty for IR protocol stacks (RC5/RC6/SIRC) plus vendor-unique keys.
Recommended
Capacitive Touch User Interface Panels
The CTMU peripheral on the PIC24FV16KA302-I/SS measures capacitance with sub-picofarad resolution, supporting slider, wheel, and matrix touch interfaces that previously required dedicated touch controllers. Combined with the 12-bit ADC for guarding and proximity sensing, a single MCU can drive 8-16 touch electrodes plus LEDs via PWM and persistent flash. XLP Deep Sleep holds touch wake on a single electrode with sub-microamp draw, ideal for battery-powered white goods and IoT panels. The 5V I/O also drives high-brightness LED indicators directly.
Recommended
IoT Edge Sensor Hubs
Small IoT hubs that aggregate data from a few sensors over UART, SPI, or I2C before forwarding via Bluetooth/Wi-Fi/Sub-GHz radios fit the PIC24FV16KA302-I/SS profile: 16 MIPS handles sensor fusion at low rates, 2 KB SRAM is ample for short circular buffers, and the 5V-tolerant I/O simplifies interface to industrial sensors on 24 V buses after simple resistive dividers. The 12-bit ADC with internal reference removes the need for a separate analog front end in many environmental-monitoring designs, while XLP Deep Sleep preserves battery life during idle intervals.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KA302-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV16KA302-I/SO | PIC24FV16KA302-I/ML | PIC24FV16KA302-E/ML | PIC24FJ64GA002-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SOIC (same die) | 28-QFN (same die) | 28-QFN (same die, ext temp) | 28-SSOP (same) |
| Flash | 16 KB | 16 KB | 16 KB | 16 KB | 64 KB (+300%) |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 8 KB (+300%) |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 0 B (no EEPROM on this family variant) |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.0 V to 3.6 V (no 5V I/O) |
| Operating Temperature | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +125 C (ext) | -40 to +85 C |
| XLP / Deep Sleep | Yes (RTCC + DSWDT + DSBOR) | Yes | Yes | Yes | Yes |
Key Differentiators
- 5V-tolerant I/O at 1.8 V core supply (FV family) (vs PIC24FJ64GA002-I/SS)
- On-chip CTMU for capacitive touch and precise timing (vs PIC24FV08KM102-I/SP)
- Combined RTCC + DSWDT + DSBOR in Deep Sleep at nanoamp levels (vs PIC24FJ64GL302-E/SS)
- 512 bytes on-chip EEPROM (vs PIC24FJ64GA002-I/SS)
Design Notes
Estimated: Deep Sleep current on the PIC24FV16KA302-I/SS is in the nanoamp range (typically <100 nA with RTCC off and ~1 uA with RTCC running). For a 3 V coin-cell (CR2032 ~235 mAh), disabling RTCC gives ~20+ years of theoretical shelf life; with hourly wake-and-send, target average current well below 5 uA to keep 5+ year service intervals. Use the DSGPRx bit field to disable unneeded Deep Sleep peripherals.
Place a 0.1 uF X7R decoupling capacitor within 3 mm of each VDD pin and a single 10 uF bulk cap near the package. Connect all VSS pins to a solid ground pour. Keep the MCLR pull-up (typically 10 kohm) close to the IC and route the ICSP clock/data lines (PGECx/PGEDx) so they can be broken out to a 5-pin header for in-circuit debugging without disrupting board routing.
Route analog inputs (ANx) away from digital switching traces and the crystal oscillator pins (OSC1/OSC2 or SOSCI/SOSCO). Use a star-ground topology with the analog and digital grounds meeting at a single point near the MCU's VSS pins to keep ADC noise below 1 LSB. When using the CTMU for capacitive touch, dedicate one ground-free guard ring around the touch electrodes.
Do not confuse the F-version (1.8-3.6 V, no 5V I/O) with the FV-version (1.8-5.5 V, 5V-tolerant I/O) — the FV/SS part is required for direct 5V interface. Configuration bits (FOSC, FWDT, etc.) must be programmed before the device comes out of reset; leaving defaults puts the MCU in the slowest RC mode and enables the watchdog, which can look like a hang in early firmware bring-up.
Compliance Information
Industrial temperature -40 to +85 C. Not AEC-Q100 qualified; for automotive, Microchip recommends the dsPIC33/dsPIC33EV family. RoHS and REACH compliance per Microchip product environmental compliance page.
