PIC24FV16KM204-E/ML - 16-Bit XLP MCU, 16KB Flash, 32MHz | Microchip
MPN: PIC24FV16KM204-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.04 | $30.40 |
| 100 | $2.68 | $268.00 |
| 500 | $2.36 | $1,180.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC24FV16KM204-E/ML Overview
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, peripherals, and I/O. A 16-bit MCU walks the middle ground between 8-bit MCUs (cheap, simple) and 32-bit MCUs (high performance, complex), and is widely deployed in mixed-signal embedded designs where code density, ADC precision, and low power must coexist. The PIC24F sits in this niche, with the XLP variants pushing quiescent draw into the nanoamp range for battery-aware applications.
Key features of the PIC24FV16KM204 include integrated analog peripherals (12-bit ADC, 8-bit DAC, dual op-amps, comparators), Configurable Logic Cells (CLC) for hardware glue logic, Capture/Compare/PWM modules for motor and timing control, and multiple serial interfaces (UART, SPI, I2C). The device also offers a charge time measurement unit (CTMU) for capacitive touch sensing.
Architecturally, the PIC24F core uses a 16-bit modified Harvard architecture with a 24-bit instruction word, giving compact code density for C and assembly workloads. The on-chip voltage regulator accepts a wide input range and produces a stable internal 1.8V core supply, simplifying system power design. XLP technology provides sleep currents in the nanoamp range.
Typical applications include low-power IoT sensor nodes, portable medical monitoring, battery-powered metering, capacitive touch user interfaces, and mixed-signal industrial control. The wide voltage range makes it especially suited to products powered directly from USB, lithium cells, or unregulated 3.3V/5V rails.
When laying out a design, route the ICSP pair (PGECx/PGEDx) directly to a programming header with no series components, and provide 100n plus 10uF decoupling close to each VDD/AVDD pin. Select any of the multiple PGECx/PGEDx pairs to minimize board routing congestion.
This page synthesizes distributor pricing, drop-in same-family variants, and practical design notes — engineering context not aggregated on a single datasheet page.
Drop-in alternatives for PIC24FV16KM204-E/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-E/ML (same form factor and footprint) — differing in Package, ADC, Maximum CPU Speed, Operating Temperature, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FV16KM202-E/ML
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC24FV16KM204T-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV16KM104-E/ML
✅ Drop-In✓ In Stock
$3.18 / Unit
View Datasheet →PIC24F16KM204-E/ML
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →PIC24FV32KM204-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FV16KA302-E/ML
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC24FV16KM204-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| CPU Core | PIC® 16-bit MCU |
| Maximum CPU Speed | 32 MIPS / 32 MHz |
| Program Flash Memory | 16 KB (5.5K x 24) |
| SRAM | 2 KB |
| EEPROM | 512 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Supply Rails | VDD + AVDD + On-chip regulator |
| Configurable Logic Cells (CLC) | Yes |
| CCP Modules | Yes (Capture/Compare/PWM) |
| CTMU (Capacitive Touch) | Yes |
| XLP (eXtreme Low Power) | Yes |
| Operating Temperature | -40C to +125C (Industrial, -E suffix) |
| Package | 44-pin QFN EP (8x8 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per DigiKey listing) |
PIC24FV16KM204-E/ML Pin Configuration
| Pin 1 | RP5/PMD5/ICSD7/RB5 — Remappable I/O / PWM / I/O analog / System bus |
| Pin 2 | RP6/PMD6/RB6 — Remappable I/O / PWM / I/O |
| Pin 3 | RP7/PMD7/RB7 — Remappable I/O / PWM / I/O |
| Pin 4 | RP8/SCL1/RC8 — Remappable I/O / I2C1 SCL |
| Pin 5 | RP9/SDA1/RC9 — Remappable I/O / I2C1 SDA |
| Pin 6 | VSS — Ground reference |
| Pin 7 | VCAP — External capacitor for internal LDO output |
| Pin 8 | PGED3/AN2A5/RP10/RC0 — ICSP data / ADC analog / I/O |
| Pin 9 | PGEC3/AN6A1/RP11/RC1 — ICSP clock / ADC analog / I/O |
| Pin 10 | AN0A0/RP0/PMD0/RB0 — ADC analog / I/O / PWM |
| Pin 11 | AN1A1/RP1/PMD1/RB1 — ADC analog / I/O / PWM |
| Pin 12 | AN2A2/RP2/PMD2/RB2 — ADC analog / I/O / PWM |
| Pin 13 | AN3A3/RP3/PMD3/RB3 — ADC analog / I/O / PWM |
| Pin 14 | AN4A4/RP4/PMD4/RB4 — ADC analog / I/O / PWM |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply (1.8-5.5V) |
| Pin 17 | PGEC1/AN7A5/RP12/RC2 — ICSP clock / ADC analog / I/O |
| Pin 18 | PGED1/AN8A6/RP13/RC3 — ICSP data / ADC analog / I/O |
| Pin 19 | PGEC2/AN9A7/RP14/RC4 — ICSP clock / ADC analog / I/O |
| Pin 20 | PGED2/AN10A8/RP15/RC5 — ICSP data / ADC analog / I/O |
| Pin 21 | RA0 — General purpose I/O |
| Pin 22 | RA1 — General purpose I/O |
| Pin 23 | RA2 — General purpose I/O |
| Pin 24 | RA3 — General purpose I/O |
| Pin 25 | RA4 — General purpose I/O |
| Pin 26 | RA5 — General purpose I/O |
| Pin 27 | AVSS — Analog ground reference |
| Pin 28 | AVDD — Analog positive supply |
| Pin 29 | CVREF+/AN11/RP16/RC6 — Comparator Vref+ / ADC / I/O |
| Pin 30 | CVREF-/AN12/RP17/RC7 — Comparator Vref- / ADC / I/O |
| Pin 31 | DAC1/RP18/RC10 — DAC output / I/O |
| Pin 32 | OP1+/OPO1/AN13/RP19/RC11 — Op-amp 1 +input / output / ADC / I/O |
| Pin 33 | OP1-/AN14/RP20/RC12 — Op-amp 1 -input / ADC / I/O |
| Pin 34 | OP2+/OPO2/AN15/RP21/RC13 — Op-amp 2 +input / output / ADC / I/O |
| Pin 35 | OP2-/AN16/RP22/RC14 — Op-amp 2 -input / ADC / I/O |
| Pin 36 | RP23/RC15 — Remappable I/O |
| Pin 37 | OSCI/CLKI/RA6 — Crystal oscillator input / external clock |
| Pin 38 | OSCO/CLKO/RA7 — Crystal oscillator output |
| Pin 39 | MCLR/RP24/RC16 — Master clear reset (active-low) / I/O |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply (1.8-5.5V) |
| Pin 42 | SOSCI/RP25/RC17 — Secondary oscillator input / I/O |
| Pin 43 | SOSCO/RP26/RC18 — Secondary oscillator output / I/O |
| Pin 44 | RTCC/RP27/RC19 — RTCC output / I/O |
Typical Applications
PIC24FV16KM204-E/ML is suitable for 6 applications: Low-Power IoT Sensor Nodes, Portable Medical Monitoring Devices, Capacitive Touch User Interfaces, Battery-Powered Smart Metering, Industrial Sensor Hubs, Mixed-Signal Motor Control.
Low-Power IoT Sensor Nodes
The PIC24FV16KM204-E/ML's XLP technology delivers nanoamp sleep currents and integrated 12-bit ADC and CTMU, making it ideal for battery-powered IoT sensor nodes that wake periodically to measure and transmit. The 1.8-5.5V VDD range lets a single lithium cell or 2xAA pack power the entire node without a regulator. With 32 MIPS headroom for short protocol stacks (e.g., LoRaWAN, BLE HCI handoff), 16 KB Flash is ample. Compared with an 8-bit MCU, the 16-bit core reduces code size and improves sensor-fusion math performance.
Recommended
Portable Medical Monitoring Devices
Medical wearables (pulse oximeters, glucose meters, single-lead ECG patches) demand low noise, low power, and integrated analog for signal conditioning. The PIC24FV16KM204-E/ML combines a 12-bit ADC, dual on-chip op-amps (front-end gain stage), and an 8-bit DAC (bias or stimulation control) in a single 44-QFN. The 'FV' 5V tolerance enables direct USB-powered charging without external level shifters, and XLP sleep keeps idle current near zero between patient measurements.
Recommended
Capacitive Touch User Interfaces
The CTMU (Charge Time Measurement Unit) plus mTouch library lets the PIC24FV16KM204-E/ML drive multi-button and slider capacitive-touch interfaces without an external touch controller. The integrated CLC provides hardware debouncing and gesture pre-processing, offloading work from the CPU. Typical designs achieve 8-16 touch channels with <50 uA average current; combined with XLP sleep, the system can run for years on coin cells. The 32 MHz core executes touch scanning in microseconds.
Recommended
Battery-Powered Smart Metering
Utility meters (water, gas, electric submeter) need 10+ year battery life and reliable metering computation. The PIC24FV16KM204-E/ML's XLP sleep plus 12-bit ADC sample-and-conversion fits low-duty-cycle metering cycles. The CCP modules drive metrology-grade timers, and EEPROM stores tamper events and calibration across power cycles. The 1.8-5.5V input accepts varied battery chemistries (LiSOCl2, alkaline), simplifying the BOM.
Recommended
Industrial Sensor Hubs
Industrial 4-20 mA loop-powered sensors and RS-485 field nodes benefit from the PIC24FV16KM204-E/ML's 5V tolerance, dual op-amps (signal conditioning), and 12-bit ADC. The wide -40C to +125C industrial temperature rating covers factory environments. The CLC provides deterministic glue logic for protocol bridges (e.g., UART-to-LIN), reducing latency versus software bit-banging. UART/SPI/I2C peripherals support most industrial transceivers.
Recommended
Mixed-Signal Motor Control
Small BLDC and stepper motor control applications benefit from the PIC24FV16KM204-E/ML's CCP modules generating complementary PWMs at 32 MIPS for closed-loop commutation. The integrated op-amps sense current via shunt resistors, and the 12-bit ADC samples at up to 200 ksps for back-EMF sensing. The 16 KB Flash holds typical sensorless FOC firmware; the 44-QFN provides adequate thermal performance for 200 mA-class drivers.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FV16KM204-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FV16KM202-E/ML | PIC24FV16KM204T-E/ML | PIC24FV16KM104-E/ML | PIC24F16KM204-E/ML | PIC24FV32KM204-E/ML | PIC24FV16KA302-E/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) — same | 44-QFN (8x8) — same | 44-QFN (8x8) — same | 44-QFN (8x8) — same | 44-QFN (8x8) — same | 44-QFN (8x8) — same | 44-QFN (8x8) — same |
| Flash Memory | 16 KB | 16 KB | 16 KB | 8 KB | 16 KB | 32 KB | 16 KB |
| SRAM | 2 KB | 1 KB | 2 KB | 1 KB | 2 KB | 2 KB | 2 KB |
| Temperature Range | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| CTMU (Capacitive Touch) | Yes | Yes | Yes | Yes | Yes | Yes | No (KA lacks CTMU) |
| 12-bit ADC + 8-bit DAC + Op-Amps | Yes (KM analog-rich) | Yes (KM) | Yes (KM) | Yes (KM) | Yes (KM) | Yes (KM) | Reduced (less analog) |
Key Differentiators
- 5V-tolerant 'FV' variant in a low-power family (vs PIC24F16KM204-E/ML (non-FV))
- Larger SRAM vs 'KM202' family sibling (vs PIC24FV16KM202-E/ML)
- Drop-in 32KB Flash upgrade available (vs PIC24FV32KM204-E/ML)
- Full analog-rich KM peripherals vs KA (vs PIC24FV16KA302-E/ML)
Design Notes
The PIC24FV16KM204-E/ML's on-chip regulator generates a 1.8V core from the 1.8-5.5V VDD. A 1uF to 10uF low-ESR ceramic cap must be placed as close as possible to the VCAP pin (pin 7) to ensure regulator stability. Power the AVDD pin from the same VDD source through a ferrite bead or small RC filter to keep ADC noise below the 12-bit LSB. Decouple every VDD/AVDD pair with 100nF + 10uF capacitors.
The 44-pin QFN-EP package has an exposed thermal pad that MUST be soldered to a ground copper pour to meet datasheet thermal ratings. Thermal vias from the pad to inner/outer ground planes significantly improve heat dissipation for higher core currents. Keep all analog traces short and away from PWM or switching traces; route the ICSP pair (PGECx/PGEDx) directly to a 6-pin programming header with no series components. Use a ground guard around sensitive analog inputs.
Do not confuse the '-E' industrial grade (-40C to +125C) with the '-I' industrial grade (-40C to +85C); verify the exact temperature range in your datasheet and BOM. The 'FV' 5V tolerance applies to VDD only — driving peripherals above their rated max will damage the part. For ICSP programming, ensure the MCLR pull-up is at least 10k and the PGC/PGD traces are short to avoid programming failures. Read the silicon errata document published on microchip.com before locking down the firmware.
When using CTMU for capacitive touch, route sense traces as guarded, balanced pairs with a ground-fill keep-out on the sides, and avoid routing them near noisy digital or PWM traces. For best ADC SNR at 200 ksps, use AVDD decoupling, short analog traces, and average multiple conversions in firmware if the application permits. The on-chip op-amps have limited drive — keep capacitive loads under 50 pF on op-amp outputs for stability.
Compliance Information
RoHS and REACH compliance per DigiKey product listing. Industrial (-E) temperature grade, not AEC-Q100 automotive qualified.
