PIC24F16KL402-E/SO - 16KB Flash 32MHz XLP MCU | Microchip
Teilenummer: PIC24F16KL402-E/SO ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.62 | $2,62 |
| 10 | $2.4 | $24,00 |
| 100 | $2.05 | $205,00 |
| 500 | $1.82 | $910,00 |
| 1.000 | $1.65 | $1.650,00 |
PIC24F16KL402-E/SO Übersicht
What is a PIC24F XLP microcontroller? A PIC24F XLP MCU is a 16-bit modified-Harvard RISC microcontroller from Microchip that combines a rich peripheral set inherited from PIC18 parts (MSSP for I2C/SPI, CCP/ECCP for PWM/capture/compare) with the company's nanoWatt XLP technology, which provides ultra-low sleep currents suitable for battery-powered applications. It sits between 8-bit PIC16/PIC18 MCUs and the higher-end dsPIC33/PIC32 families, optimised for low cost, low pin count and low power.
Key features include a 32 MHz internal oscillator, 17 channels of 10-bit ADC, two comparators, four 16-bit timers, and hardware CRC. The C-compiler-friendly MIPS core simplifies migration from PIC18 designs while giving designers access to 16-bit-wide data paths, 16-element register files and a hardware multiply/divide unit. Communications peripherals include one I2C/SPI MSSP, one UART with LIN support, and up to 25 I/O pins.
The 16 KB self-programmable Flash supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD), enabling field firmware updates and post-assembly programming. nanoWatt XLP technology delivers typical sleep currents in the nanoampere range, watchdog and RTCC wake sources, and a low-power supervisor. Combined with 1.8-3.6V wide VDD, the device suits unregulated Li-ion or 2xAA inputs.
Typical applications include low-cost sensor nodes, low-power remote controls, battery-powered thermostats, wearables, and consumer appliances that demand low standby current with 16-bit math. The E/SO operating range covers -40°C to +125°C for industrial environments.
When designing with this device, place the 28-SOIC version (extended SOIC) where you need >25 I/O and through-hole-friendly PCB test points. The 32-MHz internal oscillator typically eliminates an external crystal for cost-sensitive designs, but add an external crystal when timing accuracy is critical (e.g., for LIN or USB bit-banging).
This page synthesises distributor pricing, drop-in alternatives within the KL402 family, and practical design notes that complement Microchip datasheet DS30001037D.
Drop-in-Alternativen für PIC24F16KL402-E/SO – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC24F16KL402-E/SO (gleiche Bauform und Footprint) – abweichend in ADC, Core Architecture, Package, Operating Temperature, Timers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC24F16KL402-I/SO
✅ Drop-In✓ Auf Lager
$1.39 / Stück
Datenblatt ansehen →PIC24F16KL401-I/SO
✅ Drop-In✓ Auf Lager
$1.49 / Stück
Datenblatt ansehen →PIC24F08KL402-E/SP
✅ Drop-In✓ Auf Lager
$1.85 / Stück
Datenblatt ansehen →PIC24F16KA102-I/SO
✅ Drop-In✓ Auf Lager
$2.52 / Stück
Datenblatt ansehen →PIC24F16KM202-I/SO
✅ Drop-In✓ Auf Lager
$2.05 / Stück
Datenblatt ansehen →PIC24F16KL402-E/SO Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC24F 16-bit modified-Harvard RISC |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash Memory | 16 KB (5.5K x 24) |
| RAM | 1 KB |
| EEPROM | 512 B |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Betriebstemperaturbereich | -40 C to +125 C (E grade) |
| Gehäuse | 28-pin SOIC (SO) - 300 mil |
| Number of I/O Pins | Up to 25 |
| ADC | 10-bit, up to 17 channels |
| Comparators | 2 |
| Timers | Four 16-bit (Timer1, Timer2/3, Timer4/5, plus RTCC) |
| Capture/Compare/PWM | 1 CCP + 1 ECCP |
| Serial Communications | 1x MSSP (I2C/SPI), 1x UART with LIN |
| Low-Power Technology | nanoWatt XLP (eXtreme Low Power) |
| Internal Oscillator | 32 MHz with PLL and multiple LFINTOSC/FRC tuning |
| Programming/Debug | ICSP + ICD (In-Circuit Serial Programming / In-Circuit Debug) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| MSL-Level | MSL 3 (per JEDEC J-STD-020) |
PIC24F16KL402-E/SO Pin-Konfiguration
| Pin 1 | SDA1/RP5/PMD5/RB5 — I/O port B5 with I2C1 data and remappable peripheral |
| Pin 2 | SCL1/RP6/PMD6/RB6 — I/O port B6 with I2C1 clock and remappable peripheral |
| Pin 3 | RP7/PMD7/RB7 — I/O port B7 with remappable peripheral |
| Pin 4 | RP8/PMD8/RB8 — I/O port B8 with remappable peripheral |
| Pin 5 | VSS — Ground reference |
| Pin 6 | OSC1/CLKI/RA0 — Oscillator input or general-purpose I/O |
| Pin 7 | OSC2/CLKO/RA1 — Oscillator output or general-purpose I/O |
| Pin 8 | TDO/RA2 — Test data output or general-purpose I/O |
| Pin 9 | TCK/SOSCI/RP9/RA3 — Test clock / secondary oscillator input |
| Pin 10 | TMS/SOSCO/RP10/RA4 — Test mode select / secondary oscillator output |
| Pin 11 | TDI/RP11/PMD11/RB9 — Test data input or general-purpose I/O |
| Pin 12 | RP12/PMD12/RB10 — I/O port B10 with remappable peripheral |
| Pin 13 | RP13/PMD13/RB11 — I/O port B11 with remappable peripheral |
| Pin 14 | RP14/PMD14/RB12 — I/O port B12 with remappable peripheral |
| Pin 15 | RP15/PMD15/RB13 — I/O port B13 with remappable peripheral |
| Pin 16 | VSS — Ground reference |
| Pin 17 | VCAP — Voltage regulator bypass - external capacitor required |
| Pin 18 | VDD — Positive supply voltage (1.8-3.6 V) |
| Pin 19 | PGD1/RP0/PMD0/RB0 — Programming data and general-purpose I/O |
| Pin 20 | PGC1/RP1/PMD1/RB1 — Programming clock and general-purpose I/O |
| Pin 21 | RP2/PMD2/RB2 — I/O port B2 with remappable peripheral |
| Pin 22 | RP3/PMD3/RB3 — I/O port B3 with remappable peripheral |
| Pin 23 | RP4/PMD4/RB4 — I/O port B4 with remappable peripheral |
| Pin 24 | AN0/CMP1A/RP16/PMD16/RB14 — Analog input 0, comparator 1 channel A, I/O |
| Pin 25 | AN1/CMP1B/RP17/PMD17/RB15 — Analog input 1, comparator 1 channel B, I/O |
| Pin 26 | AN2/CMP2A/RP18/PMD18/RC6 — Analog input 2, comparator 2 channel A, I/O |
| Pin 27 | AN3/CMP2B/RP19/PMD19/RC7 — Analog input 3, comparator 2 channel B, I/O |
| Pin 28 | MCLR/VPP/RE3 — Master clear (reset) input / programming high voltage |
Typische Anwendungen
PIC24F16KL402-E/SO ist geeignet für 6 Anwendungs: Battery-Powered Wireless Sensor Node, Low-Cost Remote Control / Consumer Appliance HMI, Smart Thermostat / HVAC Actuator, Industrial Wearable / Medical Patient Monitor, Automotive LIN Node (Sub-Cluster Slave), IoT Edge Sensor / Smart-Home Bridge.
Battery-Powered Wireless Sensor Node
The PIC24F16KL402-E/SO is well-suited for battery-powered wireless sensor nodes because its nanoWatt XLP technology delivers nanoamp-range sleep currents that directly extend coin-cell battery life. The 32 MHz / 16 MIPS core handles intermittent sensor measurements, A/D conversions through the on-chip 10-bit ADC, and short protocol bursts before returning to deep sleep. The MSSP supports both SPI (typical for NRF24L01+/CC2500-style radios) and I2C (for sensors like the SHT21 or LIS2DH), allowing one MCU to interface multiple peripherals. The 1.8-3.6 V VDD range directly accepts unregulated 2x AA or CR2032 batteries without an LDO, reducing BOM cost. Real-world designs sleep below 1 uA while keeping RTCC wake, watchdog wake and interrupt-on-change wake sources active. The 16 KB Flash is adequate for sensor libraries, MAC firmware and OTA bootloaders in low-duty-cycle deployments. The 28-SOIC package fits standard 300-mil PCB pads.
Empfohlen
Low-Cost Remote Control / Consumer Appliance HMI
The PIC24F16KL402-E/SO fits low-cost remote controls and consumer appliance front panels where a 16-bit MCU outperforms 8-bit PIC16/PIC18 parts without raising cost. The 32 MHz core debounces button matrices, drives PWM for LED backlights via the ECCP module, and executes IR protocol timing on CCP interrupt. nanoWatt XLP lets a remote run years on a coin cell, with the RTCC handling wake-on-button and watchdog handling brown-out recovery. The 10-bit ADC reads battery voltage for low-battery indicators, while MSSP I2C connects to companion chips such as LED drivers or audio DACs. With 1 KB RAM and 16 KB Flash, designs can store multiple protocol code sets (TV, BD player, soundbar) with comfortable margin. The E/SO operating range covers refrigerator and oven-control environments up to +125 C.
Empfohlen
Smart Thermostat / HVAC Actuator
The PIC24F16KL402-E/SO is a strong choice for smart thermostats and HVAC actuators where 16-bit math drives PID loops and the nanoWatt XLP technology keeps standby power under EPA Energy Star limits. The 32 MHz MIPS core runs multi-point ADC scans for temperature, humidity and pressure sensors, executes PID control on relay/triac outputs, and drives the LCD or TFT HMI via parallel ports. The dual comparators enable over-temperature hardware safety cuts without software intervention. The 16 KB Flash comfortably hosts a Zephyr/MPLAB X Harmony framework with room for OTA bootloaders and field-calibration constants. The 1.8-3.6 V VDD range allows direct operation from 2x AA backup cells during AC power brownouts. ICSP/ICD support means field firmware updates via ICSP test pads during HVAC service.
Empfohlen
Industrial Wearable / Medical Patient Monitor
The PIC24F16KL402-E/SO supports industrial wearables and patient monitors where low sleep current, small footprint and 16-bit math all matter. The nanoWatt XLP technology allows wrist-mounted devices to monitor heart-rate or galvanic-skin-response sensors, executing sensor-fusion algorithms at 32 MHz and then sleeping for seconds at a time without depleting the cell. The 10-bit ADC with 17 channels reads ECG, temperature or other bioelectric signals after external front-end amplification, while the on-chip comparators detect electrode off-detect events. The MSSP SPI port talks to a separate BTLE radio module or NTC-based body temperature sensor. The 28-SOIC variant is widely used in medical device development kits because of through-hole-friendly PCB test points during EMC testing.
Empfohlen
Automotive LIN Node (Sub-Cluster Slave)
The PIC24F16KL402-E/SO is used as a sub-cluster slave MCU in LIN-bus automotive applications such as seat controllers, mirror adjusters and small body-control modules. The on-chip UART with LIN hardware support handles LIN protocol timing without burdening the core, freeing the 32 MHz MIPS pipeline to manage multiple sensor inputs and actuator outputs. The 28-SOIC package is industry standard for ECU prototyping and aftermarket body modules. The E/SO operating range supports -40 to +125 C under-hood environments. The 16 KB Flash hosts the LIN state-machine plus device-specific calibration. For full automotive qualification, designers should consider PIC24H or dsPIC33EP variants instead; KL402 lacks full AEC-Q100 grade.
Empfohlen
IoT Edge Sensor / Smart-Home Bridge
The PIC24F16KL402-E/SO acts as an edge-sensor or smart-home bridge MCU between low-bandwidth sensors and an upstream Wi-Fi or BTLE gateway. The MSSP port drives SPI peripherals such as LoRa transceivers, I2C sensors or external EEPROMs; the UART links to BTLE or Wi-Fi modules with AT commands. The 32 MHz MIPS core handles encryption helpers (AES, CRC), sensor data timestamping and 1-Wire/Modbus protocols over UART. The nanoWatt XLP technology is critical here because IoT edge nodes typically run on coin cells for years without service. The 1.8-3.6 V VDD range matches CR2032 and AAA cells. The ICSP/ICD interface means firmware updates over a JTAG-style pogo-pin connector after deployment. The 28-SOIC variant is straightforward for hand-assembly or wave-solder prototypes.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC24F16KL402-E/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC24F16KL402-I/SO | PIC24F16KL401-I/SO | PIC24F08KL402-E/SP | PIC24F16KA102-I/SO | PIC24F16KM202-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-28 (SO) 300 mil | SOIC-28 (SO) 300 mil - same | SOIC-28 (SO) 300 mil - same | SPDIP-28 (SP) - same pin count, thru-hole | SOIC-28 (SO) 300 mil - same | SOIC-28 (SO) 300 mil - same |
| Program Flash Memory | 16 KB | 16 KB | 8 KB (-50%) | 8 KB (-50%) | 16 KB | 16 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1.5 KB (+50%) | 2 KB (+100%) |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| Max CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| Operating Temperature | -40 to +125 C (E) | -40 to +85 C (I) | -40 to +85 C (I) | -40 to +125 C (E) | -40 to +85 C (I) | -40 to +85 C (I) |
| Low-Power Technology | nanoWatt XLP (lowest sleep current) | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt (no XLP) | nanoWatt (no XLP) |
| Approx Qty-1 Price (USD) | $2.62 | $2.40 (similar) | $2.20 (slightly lower) | $2.10 (similar) | $2.85 (similar) | $3.05 (slightly higher) |
Wichtigste Unterscheidungsmerkmale
- Widest operating temperature in the KL402 28-SOIC family (vs. PIC24F16KL402-I/SO)
- Highest Flash density in the KL402 28-SOIC family (vs. PIC24F16KL401-I/SO)
- Lowest sleep current in the 16 KB 28-SOIC family (vs. PIC24F16KA102-I/SO)
Designhinweise
Place a low-ESR 10 uF ceramic capacitor (X5R/X7R, 6.3 V or higher) directly on the VCAP pin to ground to stabilise the on-chip 1.8 V regulator, plus a 0.1 uF decoupling capacitor directly on VDD with traces kept under 5 mm. Wide-trace ground returns to VSS at the same frequencies. For battery inputs, the nanoWatt XLP sleep current is highly sensitive to leak paths on ADC or comparator pins - configure unused pins as digital outputs and pull the analog inputs to ground or VDD through a defined impedance. Estimated: at 3.0 V VDD with the MCU in deep Sleep, ≈ 20-100 nA quiescent current can be achieved when the on-chip peripheral pull-ups are disabled.
Route the ICSP/ICD pins (PGD1/RB0, PGC1/RB1, MCLR) on test points or pads accessible by a 0.1 inch header so that field firmware updates are possible without exposing them in production. The 28-SOIC 300-mil package has 1.27 mm pitch, which is hand-solderable but should still use slightly larger pads (0.6 mm wide by 2.0 mm long) for hand-rework. Keep the analog inputs (AN0-AN3, RB14-RB15, RC6-RC7) physically away from the MCLR and oscillator pins to avoid coupling noise into the ADC. Add a ground ring or guard trace around analog sensor inputs. Estimate the ADC settling time to be 1 us for a 10-bit conversion with a 4.7 kohm source impedance; lower it below 1 kohm for full accuracy.
Do not leave the VCAP pin floating - the internal 1.8 V regulator requires this 10 uF cap or the MCU will not start reliably. Do not exceed the maximum VDD/MPL rating: VDD must stay below 3.6 V (else latch-up); also VDD must stay above 1.8 V at 16 MIPS. Enable the on-chip Brown-Out Reset (BOR) in the configuration bits to recover gracefully from power-line transients. When migrating from PIC18 to PIC24F16KL402, remember that the PIC24F executes instructions in 2 clock cycles - re-validate timing loops because PIC18 code written assuming 4-clock instruction cycles will run faster on the KL402. Finally, the I2C MSSP requires 5V-tolerant pins when communicating with 5V devices; add external level translation if the upstream device runs at 5V.
Compliance-Informationen
RoHS and REACH compliant per Microchip product page. KL402 family is not AEC-Q100 qualified - for AEC-Q100 grade parts use PIC24H or dsPIC33EP families. Lead-free and halogen-free per industry-standard Microchip datasheets.
