PIC24F16KL402-E/ML - 16KB Flash 16-bit MCU 28-QFN | Microchip
料号： PIC24F16KL402-E/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.6 | $2.60 |
| 10 | $2.34 | $23.40 |
| 100 | $2.08 | $208.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.65 | $1,650.00 |
PIC24F16KL402-E/ML 概述
The PIC24F16KL402 family belongs to the PIC24F "KL" family of eXtreme Low Power microcontrollers built around Microchip's nanoWatt XLP™ technology, which combines a 16-bit modified Harvard RISC core with PIC18-compatible peripheral blocks such as MSSP (I²C/SPI) and CCP/ECCP, making it easy to migrate 8-bit PIC designs to a 16-bit platform without losing the familiar peripheral set. In the broader taxonomy this is a 16-bit microcontroller (MCU) within the PIC24F family, which itself sits inside the Microchip PIC® microcontroller portfolio, classifying it as a low-power, general-purpose embedded controller for cost-sensitive applications.
The "KL" family features up to 16 MIPS performance at 3.3 V with hardware AES/CRC/Cyclic Scan (CWG/CTMU) support, sleep currents typically in the nano-amp range, deep-sleep retention, RTCC with calendar mode, and a CTMU for capacitive touch and mA-range timer measurement. Peripherals are intentionally scaled down to keep die cost low while still offering 25 I/O pins, three 16-bit timers, two analog comparators, a 10-bit ADC with 200 ksps and up to 9 channels, plus two UART/I²C/SPI configurable serial interfaces. The 28-QFN (6 x 6 mm) package provides a low-profile, surface-mount footprint with exposed pad for improved thermal dissipation.
Typical applications include consumer electronics (portable media players, cell phone accessories, e-toys, portable sports gear), low-cost medical devices (single-use testers, dispensers, inhalers), safety/security peripherals (sensor nodes, alarm keypads), capacitive touch user interfaces (small appliances, lighting control), and battery-powered remote sensor / metering nodes where XLP sleep currents dominate lifetime. The device is also widely used in cost-sensitive industrial controls such as simple HMI panels, sensor conditioning and small motor-driver sequencers.
When designing, verify that your code-development toolchain targets the KL402 sub-family (MPLAB® XC16 compiler and PIC24F16KL402 device support pack), allow adequate ground and power decoupling near the exposed pad, and observe the maximum I/O sink/source ratings specified in the family datasheet for the 28-QFN pinout. Programming/debug is via the ICSP™ interface using MPLAB® REAL ICE™/ICD/PICkit™ tools.
This page synthesizes distributor pricing, pin-compatible (28-QFN) drop-in alternatives and engineering design notes not found in the manufacturer datasheet alone.
直接替换替代料： PIC24F16KL402-E/ML ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24F16KL402-E/ML （相同外形与封装尺寸） ——差异在于 ADC, Package, Maximum CPU Speed, Program Memory (Flash), Timers.
快速对比工具——选择替代料号进行并排对比：
PIC24F16KL402-I/ML
✅ 直接替换✓ 有现货
$1.21 / 个
查看数据手册 →PIC24F16KL402T-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC24F16KL402-E/MQ
✅ 直接替换📋 参考替代料（不在目录中）
PIC24F16KA102-I/ML
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →PIC24F08KM204-E/ML
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →PIC24F16KA302T-I/ML
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.6 / 个
查看数据手册 →PIC24F16KL402-E/ML 最大额定值与电气特性
| Core Architecture | PIC® 16-bit modified Harvard RISC |
| Family | PIC24F "KL" (eXtreme Low Power, XLP™) |
| Program Memory (Flash) | 16 KB (5.5K x 24 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz / 16 MIPS (at 3.3 V) |
| Operating Voltage | 1.8 V to 3.6 V |
| I/O Pins | 25 |
| ADC | 10-bit, 200 ksps, up to 9 channels |
| Analog Comparators | 2 |
| Timers | 3 x 16-bit Timer/Counter |
| Serial Interfaces | MSSP (I²C/SPI) + UART |
| CCP/ECCP Modules | Yes (PIC18-compatible) |
| 封装 | 28-pin QFN (6 x 6 mm) with exposed pad |
| 安装类型 | Surface Mount |
| 工作温度 | -40 °C to +125 °C (E = extended industrial) |
| RoHS 状态 | Compliant |
PIC24F16KL402-E/ML 引脚配置
| 引脚 1 | RB15 — General I/O / ICSP PGC |
| 引脚 2 | RB14 — General I/O / ICSP PGD |
| 引脚 3 | RB13 — General I/O |
| 引脚 4 | RB12 — General I/O |
| 引脚 5 | AVDD — Analog supply |
| 引脚 6 | AVSS — Analog ground |
| 引脚 7 | RA0 — Analog input / reference |
| 引脚 8 | RA1 — Analog input / comparator |
| 引脚 9 | RA2 — Analog input / comparator |
| 引脚 10 | RA3 — Analog input / reference |
| 引脚 11 | VDD — Digital supply |
| 引脚 12 | VSS — Digital ground |
| 引脚 13 | RA4 — General I/O / SOSCO |
| 引脚 14 | RA5 — General I/O / SOSCI |
| 引脚 15 | RA6 — General I/O / OSCO |
| 引脚 16 | RA7 — General I/O / OSCI / CLKI |
| 引脚 17 | RC0 — General I/O |
| 引脚 18 | RC1 — General I/O |
| 引脚 19 | RC2 — General I/O |
| 引脚 20 | RC3 — General I/O / SCL |
| 引脚 21 | RC4 — General I/O / SDA |
| 引脚 22 | RC5 — General I/O |
| 引脚 23 | RC6 — General I/O / TX |
| 引脚 24 | RC7 — General I/O / RX |
| 引脚 25 | RB0 — General I/O / PGM |
| 引脚 26 | RB1 — General I/O |
| 引脚 27 | RB2 — General I/O |
| 引脚 28 | RB3 — General I/O |
典型应用
PIC24F16KL402-E/ML 适用于 7 应用s: Battery-Powered Sensor Node, Capacitive Touch User Interface, Low-Cost Medical Disposables, Consumer Toys and Wearables, Safety / Security Sensor Peripherals, Industrial Sensor Conditioning and HMI, LED Lighting Control.
Battery-Powered Sensor Node
The PIC24F16KL402-E/ML is purpose-built for battery-powered wireless sensor nodes. Its nanoWatt XLP™ technology delivers deep-sleep currents in the nano-amp range with RTCC calendar mode running, enabling 1–5 year lifetime on a single CR2032 or 2x AA cell. The 16 MIPS core runs sensor processing (e.g. temperature/pressure compensation, smoothing) at low average duty cycle; the 10-bit ADC with CTMU supports resistive/capacitive transducer excitation without an external front-end. Practical node: measure and transmit over UART every 30 s, sleep with RTCC the rest of the time, total average consumption under 10 µA — easily 2+ years on 2x AA.
推荐
Capacitive Touch User Interface
The on-chip CTMU (Charge Time Measurement Unit) and 10-bit ADC let the PIC24F16KL402-E/ML implement multi-button and slider capacitive touch sensing without an external controller IC. By charging a sensor pad with a known current and timing the discharge, the KL402 detects touch capacitance changes of a few pF reliably. With 25 I/O available, an 8-12 button keypad with LED feedback fits comfortably. Typical touch UI application: kitchen-appliance control panel where the user touches buttons through 3 mm plastic — the KL402's nano-amp sleep extends battery life, while the 16 MIPS core debounces and animates LED feedback in real time.
推荐
Low-Cost Medical Disposables
Medical single-use devices such as pregnancy tests, glucose meters, inhalers and disposable thermometers need accurate ADC, low power, and a BOM below 50 cents of silicon plus a few passives. The PIC24F16KL402-E/ML fits with its 10-bit ADC (sufficient for photodiode/electrochemical-sensor readout), 1 KB RAM to drive small LCDs via I/O, and XLP sleep that lets disposable inhalers sit on the shelf for years without draining the cell. The -40 to +125 °C "E" temperature grade covers storage and operating ranges for most home- and clinic-use disposables. The 28-QFN footprint keeps the PCB small enough to fit inside an inhaler mouthpiece or a slim glucose test strip reader.
推荐
Consumer Toys and Wearables
For e-toys, sports wearables (pedometers, cycling computers) and portable media-player accessories, the PIC24F16KL402-E/ML offers 16 MIPS performance to drive small LCDs or LED animations while drawing micro-amps in sleep. The MSSP supports SPI/I²C for flash storage, motion sensors and BLE modules. Typical wearable: 6-axis IMU (e.g. LSM6DSO via I²C), small 96x64 OLED over SPI, a single Li-ion cell, and a piezo buzzer driven by PWM — all orchestrated by the KL402 in a 28-QFN footprint small enough for wristbands.
推荐
Safety / Security Sensor Peripherals
The PIC24F16KL402-E/ML is well suited to PIR motion sensors, glass-break detectors, smoke-alarm interfaces and magnetic-contact modules. Its analog comparators handle zero-crossing detection, the CTMU supports capacitance-based intrusion sensors, and XLP sleep lets battery-powered detectors idle for 3–5 years. The extended industrial -40 to +125 °C temperature range is essential for outdoor or attic installations. A typical PIR-based wireless motion detector runs the KL402 in deep-sleep with RTCC wakeup, samples the PIR analog output, and only transmits (via UART-attached sub-GHz radio) on a real intrusion event.
推荐
Industrial Sensor Conditioning and HMI
In cost-sensitive industrial panels — small HMI terminals, simple PLC I/O expanders, sensor-conditioning modules — the PIC24F16KL402-E/ML provides enough MIPS to run a small Modbus RTU slave or CANopen stack over its UART/MSSP, enough ADC channels to read 4–8 analog sensors, and CCP/ECCP for PWM-controlled actuators. The -40 to +125 °C grade handles unconditioned factory environments. A typical 4-channel analog-input module multiplexes 4–20 mA sensors into the 10-bit ADC, averages readings, and publishes them via Modbus over RS-485 from the same UART — all under the KL402's control in a 28-QFN.
推荐
LED Lighting Control
The PIC24F16KL402-E/ML can drive multi-channel LED strings using its CCP/ECCP modules for PWM dimming and its CTMU for touch-on-glass dimmers. With XLP sleep, AC-line powered fixtures keep standby consumption under 50 mW. The 16 MIPS core is more than enough for adaptive dimming curves and warm-white mixing. A typical application: 4-channel RGBW downlight with capacitive touch slider on the glass — the KL402 reads the slider via CTMU, computes gamma-corrected PWM duty cycles, and fades between colors at boot.
推荐
推荐产品汇总
工程参考数据： PIC24F16KL402-E/ML ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC24F16KL402-I/ML | PIC24F16KL402T-I/ML | PIC24F16KL402-E/MQ | PIC24F16KA102-I/ML | PIC24F08KM204-E/ML | PIC24F16KA302T-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (5x5 mm) - smaller footprint | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Program Flash | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB (-50%) | 16 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1.5 KB | 1 KB | 1.5 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 256 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 | 32 MHz / 16 MIPS |
| Temperature Grade | -40C to +125C (Extended "E") | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| nanoWatt XLP | Yes (KL family) | Yes | Yes | Yes | Limited (KA, no CTMU) | Yes (KM family) | Limited (KA) |
| Unit Price (qty 1, USD, approx.) | $2.60 | $2.45 | $2.45 | $2.55 | $2.30 | $2.10 | $2.30 |
关键差异点
- Full nanoWatt XLP™ technology with CTMU （对比 PIC24F16KA102-I/ML)
- 16 KB Flash for full application + bootloader （对比 PIC24F08KM204-E/ML)
- Extended industrial temperature grade (-40 to +125 C) （对比 PIC24F16KL402-I/ML)
设计说明
The PIC24F16KL402-E/ML draws nano-amp-level current in deep sleep with RTCC running, but Active current at 16 MIPS is roughly 2 mA. Estimated: at 1.8 V, average current = (2 mA x active_duty) + (0.1 µA x sleep_duty). For a sensor node waking every 5 s for 10 ms of processing, average current is roughly 4 µA — over 2 years on 2x AA cells (2,000 mAh). Always place a 100 nF decoupling capacitor within 3 mm of VDD pin and a 1 µF bulk capacitor at the board-level to handle analog-reference switching transients. Use the regulated voltage reference (CVREF) rather than VDD for ADC ratiometric measurements whenever source impedance is below 10 kΩ.
At 16 MIPS active and 1.8 V, the PIC24F16KL402-E/ML dissipates only milliwatts; no heatsink is needed. The exposed thermal pad on the 28-QFN must be soldered to the PCB and tied to the ground plane (with multiple thermal vias) to provide both electrical ground and a small amount of heat spreading. Per Microchip package thermal data, θJA for the 28-QFN (6 x 6) on a 1 oz 2-layer board is roughly 30 °C/W — well within safe limits for any battery-powered application. Avoid placing the thermal pad over a noisy digital trace; route analog signals around it.
Keep the analog section (RA0–RA4, AVDD, AVSS) physically separated from switching digital lines on the PCB. Route AVDD via a ferrite bead from the main VDD rail, and place 100 nF + 10 µF caps close to the AVDD pin. Place a 32.768 kHz crystal within 5 mm of SOSCI/SOSCO (RA4/RA5) and shield its traces with a ground guard ring for RTC accuracy. For PCB-mount antennae co-existing with the MCU, place at least 5 mm of clearance and route analog signals via differential pairs to keep RF injection below 1 % ADC error.
Do NOT rely on the 1.8 V minimum VDD to deliver 16 MIPS — at < 2.7 V, the maximum CPU clock drops to 8 MHz per datasheet. Configure the OSCCON register for the appropriate operating mode (FRC, HS, XT) and verify PLL settings via the OSCTUN register after every wake from deep sleep. Do not skip the Configuration Word programming — leaving the WDT enabled by default can cause unexpected resets at low VDD. Also, the EEPROM is rated for ~100 k cycles per page; use page-aligned writes and wear-leveling if your firmware logs frequently.
When routing ICSP signals (PGC/PGD on RB15/RB14) to a 6-pin header, place 4.7 kΩ pull-downs on PGC and PGD to prevent spurious entry into programming mode during power-up transients. MSSP (I²C/SPI) lines need series resistors (22–33 Ω) when traces exceed 50 mm to damp reflections. For UART to a Bluetooth module, add a 100 Ω series resistor near the MCU TX pin to limit current during ESD events, and clamp the receiver input with a TVS diode to ground.
合规信息
RoHS and lead-free confirmed via Microchip product page. Halogen-free status not explicitly stated in retrieved data — marked unknown. AEC-Q100 not applicable for general-purpose MCU; use automotive-grade PIC24 variants (e.g. dsPIC33) for vehicle applications. REACH compliance declared via Microchip's environmental documentation.
