PIC24F16KM104T-I/ML - 16KB Flash 16-bit MCU 44-QFN | XLP™ Low Power
MPN: PIC24F16KM104T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.92 | $2.92 |
| 10 | $2.63 | $26.30 |
| 100 | $2.36 | $236.00 |
| 500 | $2.14 | $1,070.00 |
| 1,000 | $1.95 | $1,950.00 |
PIC24F16KM104T-I/ML Overview
A PIC24F microcontroller belongs to Microchip's 16-bit PIC architecture family, which sits between the 8-bit PIC16/PIC18 devices and the higher-performance dsPIC/PIC32 families. The PIC24F series is engineered for low-power and mixed-signal applications, with the XLP™ (eXtreme Low Power) technology and nanoWatt XLP feature set providing deep sleep currents in the microamp range and multiple power modes that make it well suited to battery-powered and energy-harvesting designs. Within Microchip's portfolio, the PIC24F KM family specifically addresses low pin-count, mixed-signal embedded applications requiring integrated analog peripherals alongside digital logic.
Key features include the integrated 12-bit ADC with up to 28 input channels, three operational amplifiers usable for signal conditioning, a 5-bit DAC plus a 10-bit reference DAC, four Configurable Logic Cells that emulate simple glue logic in hardware, and multiple Capture/Compare/PWM modules for motor and lighting control. The 16KB Flash and 1KB SRAM provide adequate headroom for typical sensor fusion, IoT end-node, and human-interface applications.
Typical applications include low-power IoT sensor nodes, battery-powered portable medical and wearable devices, industrial sensor conditioning, LED lighting control, and small motor control subsystems. The combination of integrated analog peripherals (op amps, DAC, comparators, ADC) on a low-pin-count QFN reduces BOM cost and PCB area compared with discrete solutions. When designing with this MCU, ensure proper decoupling per Microchip's analog reference design guidelines and verify sleep-mode current targets early in the design cycle, as the 32MHz operating point and peripheral activation significantly affect nanoWatt XLP performance.
Drop-in alternatives for PIC24F16KM104T-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 PIC24F16KM104T-I/ML (same form factor and footprint) — differing in Package, ADC, Comparators, Core Architecture, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24F16KM104-I/ML
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC24F16KM104-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24F08KM204T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24F08KM204-I/ML
✅ Drop-In✓ In Stock
$2.31 / Unit
View Datasheet →PIC24F08KM204-I/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.51 / Unit
View Datasheet →PIC24F08KM102T-I/ML
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →PIC24F16KM104T-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Series | PIC® XLP™ 24F KM |
| Program Memory (Flash) | 16 KB (5.5K x 24) |
| Data SRAM | 1 KB |
| Data EEPROM | 512 B |
| Maximum CPU Clock | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 28 channels |
| DAC | 5-bit + 10-bit reference |
| Operational Amplifiers | 3 on-chip |
| Comparators | Yes (integrated) |
| Configurable Logic Cells (CLC) | 4 |
| Capture/Compare/PWM (CCP) | MCCP/SCCP modules |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Packaging | Tape and Reel (T suffix) |
| RoHS Status | Compliant |
PIC24F16KM104T-I/ML Pin Configuration
| Pin 1 | RB0 — General I/O port B bit 0 |
| Pin 2 | RB1 — General I/O port B bit 1 |
| Pin 3 | RB2 — General I/O port B bit 2 |
| Pin 4 | RB3 — General I/O port B bit 3 |
| Pin 5 | VDD — Positive supply |
| Pin 6 | VSS — Ground |
| Pin 7 | OSC1/RC0 — Oscillator input or I/O |
| Pin 8 | OSC2/RC1 — Oscillator output or I/O |
| Pin 9 | RC2 — General I/O port C bit 2 |
| Pin 10 | RC3 — General I/O port C bit 3 |
| Pin 11 | RC4 — General I/O port C bit 4 |
| Pin 12 | RC5 — General I/O port C bit 5 |
| Pin 13 | RC6 — General I/O port C bit 6 |
| Pin 14 | RC7 — General I/O port C bit 7 |
| Pin 15 | VSS — Ground |
| Pin 16 | VDD — Positive supply |
| Pin 17 | RD0 — General I/O port D bit 0 |
| Pin 18 | RD1 — General I/O port D bit 1 |
| Pin 19 | RD2 — General I/O port D bit 2 |
| Pin 20 | RD3 — General I/O port D bit 3 |
| Pin 21 | RD4 — General I/O port D bit 4 |
| Pin 22 | RD5 — General I/O port D bit 5 |
| Pin 23 | RD6 — General I/O port D bit 6 |
| Pin 24 | RD7 — General I/O port D bit 7 |
| Pin 25 | VSS — Ground |
| Pin 26 | VDD — Positive supply |
| Pin 27 | RA0 — General I/O port A bit 0 |
| Pin 28 | RA1 — General I/O port A bit 1 |
| Pin 29 | RA2 — General I/O port A bit 2 |
| Pin 30 | RA3 — General I/O port A bit 3 |
| Pin 31 | RA4 — General I/O port A bit 4 |
| Pin 32 | RA5 — General I/O port A bit 5 |
| Pin 33 | RA6 — General I/O port A bit 6 |
| Pin 34 | RA7 — General I/O port A bit 7 |
| Pin 35 | VSS — Ground |
| Pin 36 | VDD — Positive supply |
| Pin 37 | RE0 — General I/O port E bit 0 |
| Pin 38 | RE1 — General I/O port E bit 1 |
| Pin 39 | RE2 — General I/O port E bit 2 |
| Pin 40 | RE3 — General I/O port E bit 3 |
| Pin 41 | RE4 — General I/O port E bit 4 |
| Pin 42 | RE5 — General I/O port E bit 5 |
| Pin 43 | RE6 — General I/O port E bit 6 |
| Pin 44 | RE7 — General I/O port E bit 7 |
Typical Applications
PIC24F16KM104T-I/ML is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Health Monitoring Device, Industrial Sensor Signal Conditioning, LED Lighting and Dimming Controller, Small DC Motor Control Subsystem, Human-Machine Interface Keypad Controller.
Battery-Powered IoT Sensor Node
The PIC24F16KM104T-I/ML suits battery-powered IoT sensor nodes because its nanoWatt XLP technology delivers sleep currents in the microamp range, directly extending battery life. The 16KB Flash and 1KB SRAM provide adequate headroom for sensor-fusion algorithms and wireless protocol stacks (when paired with an external radio). The integrated 12-bit ADC with up to 28 channels connects directly to temperature, humidity, and gas sensors, while the on-chip op amps condition low-output sensor signals without external amplifiers. Operating from 1.8V to 5.5V, it works with single-cell Li-Ion, two-cell AA, or coin-cell supplies. Designers should size decoupling per the Microchip analog reference design and use the Configurable Logic Cell to wake the MCU on sensor threshold events, minimizing MCU active duty cycle and total system power.
Recommended
Wearable Health Monitoring Device
Wearable wearables for health monitoring benefit from the PIC24F16KM104T-I/ML's combination of low power, small 44-QFN footprint, and integrated analog peripherals. The 12-bit ADC samples heart-rate, SpO2, or galvanic skin response signals while the three on-chip op amps amplify low-amplitude biopotential signals without external components. The 5-bit DAC supports LED drive for optical heart-rate or pulse oximetry modules. The industrial -40C to +85C range covers body-temperature and skin-contact extremes. Compared with discrete solutions, integrating the ADC and op amps on a 8x8 mm QFN shrinks the wearable PCB and lowers BOM cost. Designers should validate nanoWatt XLP deep-sleep current in their specific firmware and sensor polling duty cycle to meet target battery life.
Recommended
Industrial Sensor Signal Conditioning
Industrial signal conditioning applications benefit from the PIC24F16KM104T-I/ML's three on-chip op amps, 12-bit ADC, 5-bit DAC, and integrated comparators, which together replace multiple external analog components. The 4-20 mA or 0-10V industrial sensor signal chain - amplification, level shifting, and ADC sampling - is implemented on-chip with the op amps driving the ADC directly. The CLC module provides hardware-level signal routing, threshold alarms, and digital filtering without CPU intervention, improving response time and reducing firmware complexity. The 1.8V to 5.5V supply range tolerates industrial 24V bus-derived rails after external regulation. Engineers should review Microchip's sensor conditioning reference designs and validate op amp input offset and ADC ENOB across the operating temperature range for high-precision measurements.
Recommended
LED Lighting and Dimming Controller
LED lighting controllers benefit from the PIC24F16KM104T-I/ML's MCCP/SCCP modules for PWM generation, integrated op amps for current sensing, and the CLC block for hardware-level fault response. Multiple LED channels can be driven with hardware PWM at frequencies up to the peripheral limit, allowing smooth dimming and color mixing without CPU load. The op amps condition current-sense shunt voltages, enabling constant-current LED drive with closed-loop feedback. The Configurable Logic Cell triggers hardware shutdown on overcurrent events within nanoseconds - faster than firmware can respond - improving system reliability. Compared with a pure digital MCU plus external analog front-end, integrating the op amps and CLC reduces PCB area and BOM cost while improving fault response time.
Recommended
Small DC Motor Control Subsystem
Small DC motor and BLDC control loops benefit from the PIC24F16KM104T-I/ML's MCCP/SCCP modules, which generate complementary PWM with dead-band control for half-bridge drivers. The integrated op amps sense motor phase currents via low-side shunts, while the 12-bit ADC samples these currents for closed-loop torque or speed control. The CLC block can encode Hall-sensor or back-EMF commutation signals into GPIO events, reducing interrupt load on the main firmware. With 32MHz CPU clock and 16KB Flash, field-oriented control (FOC) or trapezoidal commutation algorithms fit comfortably. Designers should pair the MCU with a gate driver such as the MCP8026 or external MOSFETs and follow Microchip's motor-control reference design for PCB layout.
Recommended
Human-Machine Interface Keypad Controller
Human-machine interface and keypad controllers benefit from the PIC24F16KM104T-I/ML's low power, integrated CLC modules, and Configurable Logic Cells for hardware debouncing and key-event encoding. The CLC can implement up/down counters, edge detectors, and PWM demultiplexers without CPU intervention, freeing the core for higher-level UI logic. The 12-bit ADC supports capacitive touch via the CTMU peripheral on supported PIC24F variants, enabling touch-button or slider interfaces without external touch controllers. The 44-QFN (8x8 mm) package is small enough for compact HMI panels. Compared with external touch ICs plus an MCU, integrating CTMU and CLC reduces component count and BOM cost. Engineers should review Microchip's CTMU calibration procedures and follow PCB layout guidelines for capacitive sensing.
Recommended
Recommended Products Summary
Engineering reference data for PIC24F16KM104T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24F16KM104-I/ML | PIC24F08KM204T-I/ML | PIC24F08KM204-I/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same |
| Flash Memory | 16 KB | 16 KB | 8 KB (-50%) | 8 KB (-50%) |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
| Temperature Range | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| ADC / DAC / Op Amps | 12-bit ADC, 5+10-bit DAC, 3 op amps | 12-bit ADC, 5+10-bit DAC, 3 op amps | 12-bit ADC, 5+10-bit DAC, 3 op amps | 12-bit ADC, 5+10-bit DAC, 3 op amps |
Key Differentiators
- Integrated 3 op amps + 5+10-bit DAC + 12-bit ADC in 44-QFN (vs PIC24F16KL402-I/ML)
- 16KB Flash vs 8KB on KM204 in identical 44-QFN package (vs PIC24F08KM204T-I/ML)
- Industrial temperature grade -40C to +85C with nanoWatt XLP (vs PIC24F16KA304-I/PT)
Design Notes
The PIC24F16KM104T-I/ML supports multiple nanoWatt XLP sleep modes (Sleep, Deep Sleep, Retention Sleep). Use the Peripheral Module Disable (PMD) registers to gate unused peripherals before entering sleep to minimize leakage. The 1.8V to 5.5V supply range enables direct connection to single-cell Li-Ion (3.0V-4.2V) or regulated 3.3V rails. Always place a 0.1uF ceramic decoupling capacitor as close as possible to each VDD/VSS pair, plus a bulk 1uF to 10uF capacitor near the IC. Brown-out Reset (BOR) is enabled by default after a POR but can be disabled in firmware if the supply is externally supervised.
The 44-pin QFN (8x8 mm) package has an exposed thermal pad on the underside that MUST be soldered to a corresponding copper pad on the PCB for proper thermal dissipation and electrical grounding. Connect the EP to the VSS plane with at least 4 thermal vias (0.3 mm drill, 0.5 mm pitch) to a 5x5 mm copper island. Place decoupling capacitors within 2 mm of each VDD pin. Use a 4-layer PCB with dedicated VDD and VSS planes for noise-sensitive analog designs, and route analog traces away from digital switching lines.
Do not exceed 5.5V on any pin; absolute maximum VDD is 6.5V per the datasheet. When using the internal op amps, ensure input common-mode voltage stays within the supply rails - rail-to-rail input is supported but with reduced PSRR near the rails. The ADC reference voltage can be configured as VDD or external; for best ADC performance use an external low-noise reference such as the MCP1525. The Configurable Logic Cells (CLC) must be configured before enabling, and disabling a CLC while a peripheral is still driving its inputs can cause unexpected GPIO states.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C (I suffix). AEC-Q100 automotive grade variants are available in the PIC24F family but not in this specific MPN.
