PIC24FV16KM204-I/ML - 16-Bit XLP MCU, 16KB Flash, 44-QFN | Microchip
MPN: PIC24FV16KM204-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC24FV16KM204-I/ML Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), data EEPROM and a rich peripheral set. The PIC24F belongs to the 16-bit PIC family, which sits hierarchically between the 8-bit PIC16/PIC18 families and the 16-bit dsPIC33 DSP-capable family. XLP technology is Microchip's brand for nanoWatt-class sleep currents targeting battery applications. The 'V' prefix in PIC24FV denotes wide operating voltage (1.8 V to 5.5 V), making the part suitable for both 3.3 V and 5 V rails.
Key features include 16 KB Flash, 2 KB SRAM, three 16-bit timers, multiple UART/SPI/I2C interfaces, 12-bit ADC up to 500 ksps, dual rail-to-rail op amps, an 8-bit DAC, three analog comparators, configurable logic cells (CLC), and a peripheral pin select (PPS) subsystem. The device supports up to 32 MIPS performance at 32 MHz and includes a real-time clock calendar (RTCC) with calendar mode.
Architecturally, the PIC24FV16KM204 uses a modified Harvard 16-bit RISC core with single-cycle bit operations and hardware multiply, allowing deterministic interrupt response in C-language designs. The on-chip op amps and DAC enable closed-loop analog signal conditioning without external components, while the CLC peripheral implements glue-logic functions in hardware.
Typical applications include low-power IoT sensor nodes, battery-powered instrumentation, portable medical monitors, smart energy metering and consumer HMI with touch sensing. The wide-voltage range suits 2xAA battery packs and 5 V industrial sensors.
A key design consideration is selecting the right low-power mode. Sleep current at 1.8 V can drop below 20 nA with RTCC and external interrupts active, but enabling ADC or op amps raises consumption - profile each mode against your duty-cycled workload.
This page synthesizes current distributor inventory, parameter-level alternatives in the same 44-QFN footprint, and field-ready design notes that complement the official Microchip datasheet.
Drop-in alternatives for PIC24FV16KM204-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 PIC24FV16KM204-I/ML (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Maximum CPU Speed, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV32KM204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV16KM202-I/ML
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24F16KM204-I/ML
✅ Drop-In✓ In Stock
$1.97 / Unit
View Datasheet →PIC24FV16KM104-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP304-I/ML
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →PIC24FJ64GA004-I/ML
✅ Drop-In✓ In Stock
$4.91 / Unit
View Datasheet →PIC24FV16KM204-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit modified Harvard RISC |
| Maximum CPU Speed | 32 MHz (32 MIPS) |
| Program Memory (Flash) | 16 KB (5.5K x 24 instructions) |
| Data SRAM | 2 KB |
| Data EEPROM | 512 B |
| Operating Voltage Range | 1.8 V to 5.5 V (wide Vdd) |
| ADC | 12-bit, up to 500 ksps, multiple channels |
| DAC | 8-bit |
| On-chip Op Amps | Yes (rail-to-rail I/O, dual) |
| Comparators | 3 (with selectable reference) |
| Configurable Logic Cell (CLC) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication Interfaces | UART, SPI, I2C (multiple instances) |
| Timers | Three 16-bit timers |
| RTCC | Real-Time Clock Calendar with alarm |
| Package | 44-pin QFN (8x8 mm) with EP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial) |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC24FV16KM204-I/ML Pin Configuration
| Pin 1 | RA0 — Digital I/O / analog input |
| Pin 2 | RA1 — Digital I/O / analog input |
| Pin 3 | RA2 — Digital I/O / analog input |
| Pin 4 | RA3 — Digital I/O / analog input / op amp output |
| Pin 5 | RA4 — Digital I/O / analog input |
| Pin 6 | RA5 — Digital I/O / analog input |
| Pin 7 | RA6 — Digital I/O / analog input |
| Pin 8 | RA7 — Digital I/O / analog input |
| Pin 9 | RB0 — Digital I/O / analog input / PGM |
| Pin 10 | RB1 — Digital I/O / analog input |
| Pin 11 | RB2 — Digital I/O / analog input |
| Pin 12 | RB3 — Digital I/O / analog input |
| Pin 13 | RB4 — Digital I/O / analog input |
| Pin 14 | RB5 — Digital I/O / analog input |
| Pin 15 | RB6 — Digital I/O / analog input |
| Pin 16 | RB7 — Digital I/O / analog input |
| Pin 17 | RC0 — Digital I/O / analog input |
| Pin 18 | RC1 — Digital I/O / analog input |
| Pin 19 | RC2 — Digital I/O / analog input |
| Pin 20 | RC3 — Digital I/O / analog input |
| Pin 21 | RC4 — Digital I/O / analog input |
| Pin 22 | RC5 — Digital I/O / analog input |
| Pin 23 | RC6 — Digital I/O / analog input |
| Pin 24 | RC7 — Digital I/O / analog input |
| Pin 25 | RD0 — Digital I/O / analog input |
| Pin 26 | RD1 — Digital I/O / analog input |
| Pin 27 | RD2 — Digital I/O / analog input |
| Pin 28 | RD3 — Digital I/O / analog input |
| Pin 29 | RD4 — Digital I/O / analog input |
| Pin 30 | RD5 — Digital I/O / analog input |
| Pin 31 | RD6 — Digital I/O / analog input |
| Pin 32 | RD7 — Digital I/O / analog input |
| Pin 33 | RE0 — Digital I/O / analog input |
| Pin 34 | RE1 — Digital I/O / analog input |
| Pin 35 | RE2 — Digital I/O / analog input |
| Pin 36 | RE3 — Digital I/O / analog input |
| Pin 37 | RE4 — Digital I/O / analog input |
| Pin 38 | RE5 — Digital I/O / analog input |
| Pin 39 | RE6 — Digital I/O / analog input |
| Pin 40 | RE7 — Digital I/O / analog input |
| Pin 41 | OSC1 — Crystal oscillator input |
| Pin 42 | OSC2 — Crystal oscillator output |
| Pin 43 | MCLR — Master clear / reset input |
| Pin 44 | VDD — Positive supply |
Typical Applications
PIC24FV16KM204-I/ML is suitable for 7 applications: Battery-Powered IoT Sensor Node, Portable Medical Monitoring Device, Industrial Sensor Conditioning and 4-20 mA Loop, Smart Energy Meter and Submeter, Consumer HMI with Capacitive Touch, Automotive Body and Sensor Modules, Portable Test and Measurement Instrumentation.
Battery-Powered IoT Sensor Node
The PIC24FV16KM204-I/ML's XLP deep-sleep current under 20 nA at 1.8 V, integrated 12-bit ADC and on-chip dual op amps make it ideal for battery-powered IoT sensor nodes. In a typical design, a single 2xAA battery pack or CR2032 coin cell powers the MCU directly across the full 1.8 V to 5.5 V wide Vdd range, with the op amp conditioning a sensor bridge before the ADC samples at 500 ksps. The CLC peripheral can wake the MCU on threshold crossings, minimizing active time. Average current below 1 uA is achievable with duty-cycled measurements, delivering multi-year battery life on a 2400 mAh cell.
Recommended
Portable Medical Monitoring Device
The 1.8 V to 5.5 V wide Vdd and on-chip op amps suit portable medical monitors such as pulse oximeters, glucose meters and blood-pressure cuffs. The PIC24FV16KM204-I/ML samples photodiode or bridge signals through its dual rail-to-rail op amps, digitizes via the 12-bit ADC, and stores calibration in the 512-byte EEPROM. The DAC drives a precision bias or audio cue. XLP technology keeps quiescent current low, extending battery life on AAA cells. The integrated op amps eliminate the need for separate analog-front-end ICs, reducing BOM cost and PCB area in FDA-cleared home-health products.
Recommended
Industrial Sensor Conditioning and 4-20 mA Loop
Industrial sensors benefit from the PIC24FV16KM204-I/ML's wide 1.8 V to 5.5 V supply range, -40 C to +85 C industrial temperature grade, and integrated op amps for bridge and 0-10 V signal conditioning. A RTD or strain-gauge bridge is amplified by an on-chip op amp, the 12-bit ADC digitizes, and the MCU outputs a 4-20 mA loop signal via PWM plus a discrete DAC. The CLC provides fault detection combining comparator outputs. PPS lets engineers remap UART, SPI and I2C to any digital pin, simplifying mixed-signal industrial PCB layout and minimizing noise coupling into the analog section.
Recommended
Smart Energy Meter and Submeter
The PIC24FV16KM204-I/ML is well suited to single-phase smart submeter designs with on-chip op amps handling current-sense and voltage-divider signals while the 12-bit ADC samples at 500 ksps. Real-time clock calendar with calendar mode timestamps consumption, and 2 KB SRAM buffers measurements between low-energy UART transmissions. 16 KB Flash holds the metrology code, display driver, and calibration data; 512-byte EEPROM holds tamper flags and lifetime counters. Wide Vdd tolerates rectified mains without level shifters, reducing BOM cost in metrology-grade consumer submeters.
Recommended
Consumer HMI with Capacitive Touch
For low-cost consumer interfaces with capacitive touch buttons and an OLED or character LCD, the PIC24FV16KM204-I/ML integrates the op amps, comparators and PPS required to scan CTMU-based touch sensors while driving the display via SPI. The CLC peripheral combines comparator and timer signals to wake the MCU on touch events, then the SPI bus updates a small OLED graphic. Sleep current below 20 nA extends battery life in handheld remote controls, e-readers and IoT user interfaces that sit dormant between user interactions.
Recommended
Automotive Body and Sensor Modules
Automotive body controllers and sensor modules leverage the PIC24FV16KM204 family for LIN-bus communication, sensor conditioning and actuator driving. The wide 5.5 V Vdd rail tolerates automotive load-dump and cranking transients when paired with proper TVS protection. On-chip op amps handle temperature, position and pressure sensor signals while the CLC generates timing debouncing of switch signals. EEPROM stores node configuration. For AEC-Q100 qualified variants in safety-relevant automotive designs, designers typically move up to the dsPIC33EP or PIC24HJ automotive families; the KM family serves non-safety body ECUs.
Recommended
Portable Test and Measurement Instrumentation
Handheld multimeters, signal sources and cable testers benefit from the PIC24FV16KM204-I/ML's integrated op amps for input signal conditioning, dual 12-bit ADC channels for differential measurement, and PPS for flexible LCD and button scanning. The DAC drives a programmable reference voltage, while the UART outputs RS-232 / RS-485 via external transceivers. Wide Vdd supports 9 V battery through switching regulator rails, and XLP technology extends operating time in field-instrumentation use. Industrial -40 C to +85 C temperature grade supports outdoor deployment.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KM204-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV32KM204-I/ML | PIC24FV16KM202-I/ML | PIC24F16KM204-I/ML | PIC24FV16KM104-I/ML | dsPIC33FJ16GP304-I/ML | PIC24FJ64GA004-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Program Memory (Flash) | 16 KB | 32 KB | 8 KB | 16 KB | 16 KB | 16 KB | 64 KB |
| Data SRAM | 2 KB | 2 KB | 1 KB | 2 KB | 2 KB | 2 KB | 8 KB |
| Operating 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 3.6 V | 1.8 V to 5.5 V | 3.0 V to 3.6 V | 2.0 V to 3.6 V |
| CPU Speed | 32 MHz (32 MIPS) | 32 MHz (32 MIPS) | 32 MHz (32 MIPS) | 32 MHz (32 MIPS) | 32 MHz (32 MIPS) | 40 MHz (40 MIPS) | 32 MHz (32 MIPS) |
| ADC | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit, 500 ksps | 12-bit ADC, 200 ksps | 10-bit, 500 ksps |
| On-chip Op Amps | Yes (dual) | Yes (dual) | Yes (dual) | Yes (dual) | Yes (dual) | No | No |
| Integrated LCD | No | No | No | No | No | No | Yes |
Key Differentiators
- Wide 1.8 V to 5.5 V Vdd range with 5 V tolerance on digital I/O (vs PIC24F16KM204-I/ML)
- Integrated on-chip dual op amps and 8-bit DAC for analog conditioning (vs dsPIC33FJ16GP304-I/ML)
- Configurable Logic Cell (CLC) peripheral for hardware glue logic (vs PIC24FJ64GA004-I/ML)
- eXtreme Low Power (XLP) with sub-20 nA deep-sleep current (vs PIC24FV32KM204-I/ML)
Design Notes
Use deep-sleep mode with RTCC active and external interrupts enabled to reach under 20 nA quiescent current on battery-powered IoT nodes. Wake only on a periodic RTCC alarm (typically every 1 to 60 s) or a sensor-triggered external interrupt, perform the ADC sample, then return to sleep. Decoupling: place a 0.1 uF ceramic + 1 uF tantalum within 5 mm of each VDD/VSS pair on the 44-QFN, and 10 uF bulk at board entry. Wide Vdd 1.8 V to 5.5 V tolerates a 2xAA alkaline pack across discharge profile without a switching regulator.
On the 44-QFN (8x8 mm) exposed-pad package, the central thermal pad must be soldered to the ground plane with a 5x5 grid of thermal vias (12 mil diameter, 8 mil plated) for heat dissipation and ground reference. Keep analog traces (sensor inputs, op amp I/O) at least 5 mm away from switching converter traces and oscillator traces to minimize capacitive coupling. Use a 4-layer PCB with a continuous ground plane under the analog section, and route op amp output traces directly to the dedicated ADC channel pins to avoid ADC switching charge kickback.
Do not exceed 5.5 V on VDD - the 'V' family supports wide Vdd but the absolute maximum is 5.5 V; if you need 6 V or higher rails, add a TVS diode and buck regulator. The PIC24F (non-V) variants top out at 3.6 V, so do not substitute a PIC24F16KM204-I/ML in a 5 V design without adjusting the power tree. The PPS peripheral requires that you explicitly assign every used peripheral signal to a physical pin via the RPINRx/RPORx registers; if you skip this step, all peripherals default to a single set of pins and code will not run as expected.
The on-chip 12-bit ADC achieves its 500 ksps throughput only with a low-impedance input source (< 2 kOhm) - use an external op amp follower stage or the integrated op amps in unity-gain buffer mode if your sensor has higher impedance. Add a 1 kHz RC anti-alias filter at the ADC input pin. For high-accuracy sampling, enable the ADC's early interrupt and DMA burst average mode; this improves SNR by 3 to 6 dB compared with single-shot conversions under noisy PCB environments.
Compliance Information
RoHS and REACH compliant per Microchip product page DS30003030C. The -I/ML industrial temperature grade -40C to +85C supports non-safety industrial designs; automotive AEC-Q100 applications typically use PIC24HJ or dsPIC33EP automotive variants.
