PIC24F08KL402-E/SO - 16-bit 32MHz 8KB Flash MCU | Microchip
料号： PIC24F08KL402-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.95 | $19.50 |
| 100 | $1.74 | $174.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.36 | $1,360.00 |
PIC24F08KL402-E/SO 概述
A 16-bit microcontroller is a single-chip computer that fetches, decodes, and executes instructions with a 16-bit wide datapath, offering a meaningful step up in code density, arithmetic precision, and peripheral throughput over traditional 8-bit MCUs while remaining lower cost and lower power than 32-bit Cortex-M parts. PIC24F devices sit in Microchip's mid-range 16-bit portfolio, positioned between the legacy PIC18 and the dsPIC/PIC32 lines, and target cost-sensitive applications that benefit from a real C-programmable core with on-chip analog and communication peripherals.
Key features of the PIC24F08KL402 include up to 32 MIPS core throughput at 32MHz, configurable 8-channel 10-bit ADC, two analog comparators, two UART/SPI/I2C-capable MSSP ports, up to 25 mA source/sink I/O, and nanoWatt XLP sleep currents below 1 uA in deep-sleep retention mode. The 28-SOIC package is footprint-compatible with the PIC24F08KL302 and PIC24F08KL201 families, allowing board reuse across the KL series.
The device uses a Harvard architecture with separate program and data buses, a hardware multiply/divide unit, and a 16-element register file. Code and data are protected by separate Flash and Memory spaces for security, and the integrated ICSP (In-Circuit Serial Programming) interface allows in-field firmware updates without bootloader overhead.
Typical applications include cost-sensitive 16-bit embedded controls such as home appliances, sensor signal conditioning, low-power IoT sensor nodes, HVAC actuator controllers, and AEC-Q100 automotive body modules. The combination of nanoWatt XLP, MSSP, and 10-bit ADC enables direct battery-powered operation with minimal external components.
Design tip: leverage the MSSP peripheral in either SPI or I2C mode to offload bit-banged communication from the CPU, freeing bandwidth for the 10-bit ADC scan loop. For noise immunity in automotive environments, place the VCAP decoupling capacitor within 3mm of the VCAP pin and keep ADC traces short and guarded.
This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the KL/KA families, and practical design notes not found on the manufacturer product page.
直接替换替代料： PIC24F08KL402-E/SO ——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： PIC24F08KL402-E/SO （相同外形与封装尺寸） ——差异在于 Program Memory (Flash), ADC, Package, Core, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC24F08KL401-I/SO
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24F08KL302T-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.68 / 个
查看数据手册 →PIC24F08KL201-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.97 / 个
查看数据手册 →PIC24F08KA102-E/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.85 / 个
查看数据手册 →PIC24F08KL302-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.83 / 个
查看数据手册 →PIC24F04KL101-E/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.05 / 个
查看数据手册 →PIC24F08KL402-E/SO 最大额定值与电气特性
| Core | PIC24F (16-bit PIC RISC) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 8 KB (2.75K x 24) |
| Data SRAM | 1 KB (1K x 8) |
| EEPROM | 512 B (512 x 8) |
| Operating Voltage | 1.8 V to 3.6 V |
| 工作温度 | -40 C to +125 C (Extended, -E) |
| 封装 | 28-pin SOIC (SO) |
| 安装类型 | Surface Mount |
| ADC | 10-bit, multi-channel |
| Comparators | 2 analog comparators |
| MSSP (I2C/SPI) | Yes |
| UART | Yes |
| CCP/ECCP | Yes |
| Low-Power Mode | nanoWatt XLP |
| AEC-Q100 | Qualified (Extended temperature grade) |
| RoHS 状态 | Compliant |
PIC24F08KL402-E/SO 引脚配置
| 引脚 1 | MCLR/VPP — Master Clear (reset) input / Programming voltage |
| 引脚 2 | RA0 — PORTA bit 0 (analog AN0) |
| 引脚 3 | RA1 — PORTA bit 1 (analog AN1) |
| 引脚 4 | RB0 — PORTB bit 0 (analog AN2) |
| 引脚 5 | RB1 — PORTB bit 1 (analog AN3) |
| 引脚 6 | RB2 — PORTB bit 2 (analog AN4) |
| 引脚 7 | RB3 — PORTB bit 3 (analog AN5) |
| 引脚 8 | VCAP — Voltage regulator output bypass |
| 引脚 9 | VSS — Ground reference |
| 引脚 10 | RB4 — PORTB bit 4 (analog AN6) |
| 引脚 11 | RB5 — PORTB bit 5 (analog AN7) |
| 引脚 12 | RB6 — PORTB bit 6 |
| 引脚 13 | RB7 — PORTB bit 7 |
| 引脚 14 | RC0 — PORTC bit 0 |
| 引脚 15 | RC1 — PORTC bit 1 |
| 引脚 16 | RC2 — PORTC bit 2 |
| 引脚 17 | RC3 — PORTC bit 3 |
| 引脚 18 | RA2 — PORTA bit 2 |
| 引脚 19 | RA3 — PORTA bit 3 |
| 引脚 20 | VDD — Positive supply voltage |
| 引脚 21 | RA4 — PORTA bit 4 |
| 引脚 22 | RA5 — PORTA bit 5 |
| 引脚 23 | RA6 — PORTA bit 6 (OSC2) |
| 引脚 24 | RA7 — PORTA bit 7 (OSC1) |
| 引脚 25 | VSS — Ground reference |
| 引脚 26 | RC4 — PORTC bit 4 |
| 引脚 27 | RC5 — PORTC bit 5 |
| 引脚 28 | RC6 — PORTC bit 6 |
典型应用
PIC24F08KL402-E/SO 适用于 6 应用s: Automotive Body Control Modules, Battery-Powered IoT Sensor Nodes, Home Appliance User Interface Boards, HVAC Actuator Controllers, Industrial Sensor Signal Conditioning, Low-Cost Medical Monitoring Accessories.
Automotive Body Control Modules
The PIC24F08KL402-E/SO fits AEC-Q100 body control designs because its -40C to +125C operating range, 32MHz/16 MIPS PIC24F core, and 8KB Flash handle seat-controller, mirror-fold, and lighting PWM logic with headroom. The two CCP/ECCP channels deliver up to 25 mA source/sink directly to LED drivers and small relays, while the 10-bit ADC reads thermistor and current-sense signals for fault detection. Compared with automotive-grade 32-bit MCUs, the KL402-E/SO halves BOM cost while providing deterministic interrupt latency for CAN/LIN-style firmware.
推荐
Battery-Powered IoT Sensor Nodes
In wireless sensor nodes powered by 2x AA or coin-cell batteries, the PIC24F08KL402-E/SO's nanoWatt XLP deep-sleep currents below 1 uA extend coin-cell life beyond 5 years. The 32MHz PIC24F core wakes in microseconds, executes ADC scans on I2C sensors through the MSSP port, and returns to sleep between transmissions. The 8KB Flash accommodates a full LoRaWAN or BLE-bootloader stack, while 1KB SRAM handles frame buffers without external memory. Engineers pick the KL402-E/SO over 32-bit Cortex-M0+ parts when energy-per-task dominates BOM cost.
推荐
Home Appliance User Interface Boards
Washing machines, dishwashers, and induction cooktops use the PIC24F08KL402-E/SO to drive 7-segment LED displays, scan capacitive touch keypads, and orchestrate main MCU communication over UART. The 10-bit ADC reads motor current for overload detection, and two MSSP channels drive EEPROM and main-controller SPI/I2C simultaneously. The -E extended temperature grade tolerates cooktop enclosure temperatures above 85C, and the 28-SOIC package is hand-solderable for low-volume appliance production.
推荐
HVAC Actuator Controllers
The PIC24F08KL402-E/SO controls 24VAC damper actuators and thermostat loops where its 1.8V-3.6V operation accepts a small linear regulator from rectified 24VAC. The 10-bit ADC samples thermistor bridges with 1 LSB precision, and the ECCP generates high-resolution PWM for proportional valve control. AEC-Q100 -E grade handles attic-mounted actuator enclosures where summer temperatures exceed 70C. Compared with discrete op-amp analog loops, the KL402-E/SO adds firmware-definable PID control without calibration drift.
推荐
Industrial Sensor Signal Conditioning
Bridge sensors for load cells, strain gauges, and pressure transducers pair with the PIC24F08KL402-E/SO through the 10-bit ADC plus on-chip op-amp peripherals. The MSSP I2C interface connects to external 24-bit sigma-delta ADCs for high-precision readings, while the ECCP generates excitation PWM for sensor bridges. The 8KB Flash stores calibration tables and linearization curves; 512B EEPROM retains offset/gain coefficients through power cycles. Engineers select the KL402-E/SO for its deterministic interrupt latency on fast sensor sample rates.
推荐
Low-Cost Medical Monitoring Accessories
Personal health devices like pulse oximeter probes and digital thermometers use the PIC24F08KL402-E/SO to drive LEDs, capture photodiode signals, and run signal-processing algorithms in 32MHz PIC24F code. The 10-bit ADC digitizes PPG waveforms at sufficient rate for heart-rate extraction, and the MSSP I2C drives OLED status displays. nanoWatt XLP deep-sleep allows the accessory to last weeks on a CR2032 coin cell. The -E temperature grade covers wearable skin-contact thermometry from 15C to 45C ambient excursions.
推荐
推荐产品汇总
工程参考数据： PIC24F08KL402-E/SO ——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 | PIC24F08KL401-I/SO | PIC24F08KL302T-I/SO | PIC24F08KL201-I/SO | PIC24F08KA102-E/SO | PIC24F04KL101-E/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core 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 |
| Flash Memory | 8 KB | 4 KB | 8 KB | 8 KB | 8 KB | 4 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| Operating Temperature | -40C to +125C (-E) | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +125C (-E) | -40C to +125C (-E) |
| AEC-Q100 | Yes | No (industrial) | No (industrial) | No (industrial) | Yes | Yes |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| MSSP (I2C/SPI) | Yes | Yes | Yes | Yes | Yes | Yes |
关键差异点
- AEC-Q100 qualification with -40C to +125C operation （对比 PIC24F08KL401-I/SO)
- 8KB Flash at full AEC-Q100 grade （对比 PIC24F04KL101-E/SO)
- Modern KL402 sub-family peripheral mix （对比 PIC24F08KA102-E/SO)
设计说明
Place a 10uF X7R ceramic bypass capacitor within 3mm of the VDD pin and a 0.1uF X7R decoupling capacitor on the VCAP pin. The on-chip voltage regulator requires VCAP to stabilize the 1.8V core rail; insufficient capacitance causes core brown-out at high MIPS load. Estimated: with VCAP capacitance below 1uF the core voltage may droop below 1.65V during Flash writes.
Keep ADC traces short and guarded by a ground pour to minimize digital switching noise. The 10-bit ADC reaches 1 LSB accuracy only when source impedance is below 2 kohm and acquisition time is at least 1.5 uS. For 4-20 mA current-loop sensing, add an RC anti-aliasing filter with cutoff at one-tenth of the sample rate. The SOIC-28 package has adequate thermal mass for typical 50 mA loads without copper pour expansion.
Do not leave the MCLR pin floating. Tie MCLR to VDD through a 10 kohm pull-up resistor and add a 100 nF capacitor to VDD for noise immunity, as recommended in the Microchip PIC24F KL402 datasheet. Floating MCLR causes spurious resets in electrically noisy environments like automotive ignition systems. Also confirm the CONFIG bits match the chosen oscillator mode (HS vs INTOSC) before locking the configuration word.
The MSSP peripheral supports both SPI up to 10 MHz and I2C up to 400 kHz Fast mode. For I2C buses longer than 100mm, add 4.7 kohm pull-ups to VDD and use a twisted-pair routing. The ECCP peripheral generates up to 10-bit resolution PWM at 32MHz, suitable for LED dimming and DC motor drive; route PWM outputs away from ADC traces to avoid coupling noise into analog readings.
合规信息
AEC-Q100 qualified per Microchip Extended (-E) temperature grade marking. RoHS and REACH compliant per manufacturer product page. Lead-free and halogen-free per Microchip material declarations.
