PIC24F16KM202-E/SO - 16KB Flash 16-bit MCU | Microchip
料号： PIC24F16KM202-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.1 | $31.00 |
| 100 | $2.74 | $274.00 |
| 500 | $2.4 | $1,200.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC24F16KM202-E/SO 概述
What is a 16-bit microcontroller? A 16-bit microcontroller is an embedded computing device that processes data with a 16-bit-wide data path, instruction word, and register set, offering a balance between 8-bit simplicity and 32-bit performance. Within the broader embedded hierarchy, PIC24F MCUs sit between 8-bit PIC16/PIC18 devices and 32-bit PIC32MX/dsPIC33 devices, targeting low-power mixed-signal applications with moderate computational requirements. They belong to the Microcontroller > Microcontrollers > Integrated Circuits taxonomy and are typically used as system-on-chip controllers in battery-powered and analog-front-end designs.
Key features of the PIC24F16KM202 include eXtreme Low Power (XLP) technology with multiple deep-sleep modes, configurable logic cells (CLC), multiple Capture/Compare/PWM (SCCP/MCCP) modules, and support for communication peripherals such as I2C, SPI, and UART. The integrated op amps and DAC eliminate the need for many external analog components, reducing BOM cost and PCB area while improving noise immunity in tightly-coupled analog loops.
From an architectural standpoint, the PIC24F16KM202 uses a modified Harvard architecture with a 16-bit wide instruction path and a 24-bit instruction word, providing deterministic interrupt latency and efficient C compilation through the MPLAB XC16 toolchain. The device supports a wide operating voltage range, internal voltage reference options, and on-chip debugging via standard ICSP interfaces, simplifying prototype bring-up.
Typical applications include IoT sensor nodes, battery-powered medical monitors, industrial sensor conditioning loops, low-power consumer electronics, and analog-front-end daughter boards. The combination of integrated op amps, ADC, and DAC makes it well-suited for closed-loop control without external analog ICs. Designers should pay attention to the -E temperature grade suffix, which denotes the Extended (-40C to +125C) operating range suitable for industrial environments. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not collected in any single manufacturer datasheet, providing unique decision support for engineers evaluating this MCU.
直接替换替代料： PIC24F16KM202-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： PIC24F16KM202-E/SO （相同外形与封装尺寸） ——差异在于 ADC, Core Architecture, Package, Comparators, Capture/Compare/PWM.
快速对比工具——选择替代料号进行并排对比：
PIC24F16KM202-I/SO
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →PIC24F16KM202-E/ML
✅ 直接替换✓ 有现货
$2.55 / 个
查看数据手册 →PIC24F08KM202-I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC24F16KL402-E/SO
✅ 直接替换✓ 有现货
$1.65 / 个
查看数据手册 →PIC24F16KA102-E/SO
✅ 直接替换✓ 有现货
$1.58 / 个
查看数据手册 →PIC24F16KM202-E/SO 最大额定值与电气特性
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Program Memory (Flash) | 16 KB (5.5K x 24 instructions) |
| Data RAM | 2 KB |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.5V to 3.6V (and 5V tolerant I/O per datasheet) |
| ADC | 12-bit |
| DAC | 8-bit |
| Integrated Op Amps | Yes |
| Configurable Logic Cell (CLC) | Yes |
| Capture/Compare/PWM | Multiple SCCP/MCCP modules |
| Communication Peripherals | I2C, SPI, UART |
| 封装 | 28-pin SOIC (SO) wide-body |
| 工作温度范围 | -40C to +125C (Extended, -E grade) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Low Power Technology | eXtreme Low Power (XLP) |
| Instruction Set Width | 24-bit |
PIC24F16KM202-E/SO 引脚配置
| 引脚 1 | MCLR — Master Clear (Reset) input, active low |
| 引脚 2 | RA0 — Port A bit 0 / analog input |
| 引脚 3 | RA1 — Port A bit 1 / analog input |
| 引脚 4 | RB0 — Port B bit 0 / programming clock |
| 引脚 5 | RB1 — Port B bit 1 / programming data |
| 引脚 6 | RB2 — Port B bit 2 / analog input |
| 引脚 7 | RB3 — Port B bit 3 / analog input |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | RA2 — Port A bit 2 / analog input / op amp output |
| 引脚 10 | RA3 — Port A bit 3 / analog input / op amp inverting input |
| 引脚 11 | RA4 — Port A bit 4 / analog input / op amp non-inverting input |
| 引脚 12 | RA5 — Port A bit 5 / analog input |
| 引脚 13 | RB4 — Port B bit 4 / analog input |
| 引脚 14 | RB5 — Port B bit 5 / analog input |
| 引脚 15 | RB6 — Port B bit 6 / analog input |
| 引脚 16 | RB7 — Port B bit 7 / analog input |
| 引脚 17 | RC0 — Port C bit 0 / analog input |
| 引脚 18 | RC1 — Port C bit 1 / analog input |
| 引脚 19 | RC2 — Port C bit 2 / analog input |
| 引脚 20 | RC3 — Port C bit 3 / analog input |
| 引脚 21 | RC4 — Port C bit 4 / analog input |
| 引脚 22 | RC5 — Port C bit 5 / analog input |
| 引脚 23 | RC6 — Port C bit 6 / analog input |
| 引脚 24 | RC7 — Port C bit 7 / analog input |
| 引脚 25 | RA6 — Port A bit 6 / oscillator |
| 引脚 26 | RA7 — Port A bit 7 / oscillator |
| 引脚 27 | AVSS — Analog ground |
| 引脚 28 | VDD — Positive power supply |
典型应用
PIC24F16KM202-E/SO 适用于 6 应用s: Battery-Powered IoT Sensor Nodes, Industrial Sensor Conditioning Loops, Portable Medical Monitoring Devices, Low-Power Consumer Electronics, HVAC and Building Automation, Automotive Sensor Interfaces (Non-Safety).
Battery-Powered IoT Sensor Nodes
The PIC24F16KM202-E/SO is well suited for battery-powered IoT sensor nodes because its eXtreme Low Power (XLP) deep-sleep modes draw microamp-level currents, while the 32 MHz core provides enough headroom to wake, sample, and transmit on periodic intervals. The integrated 12-bit ADC reads sensor outputs directly without external signal conditioning, and the 8-bit DAC can drive actuator references. With 16 KB Flash, code space is sufficient for small RTOS kernels, sensor drivers, and wireless protocol stacks such as LoRaWAN or BLE beacon firmware. The Extended -40C to +125C temperature grade also enables outdoor and industrial deployments where thermal stress is common.
推荐
Industrial Sensor Conditioning Loops
The PIC24F16KM202-E/SO's integrated op amps, 12-bit ADC, and 8-bit DAC eliminate the need for most external analog front-end components in industrial sensor conditioning loops. The op amps can be configured as instrumentation or buffer stages for bridge sensors, thermocouples, or 4-20 mA current loops. With 16 KB Flash, calibration coefficients, linearization tables, and HART or MODBUS communication stacks fit comfortably. The Extended -40C to +125C temperature grade handles factory-floor thermal swings. The 32 MHz CPU enables real-time digital filtering and PID control loops without offloading to a dedicated DSP.
推荐
Portable Medical Monitoring Devices
In portable medical monitoring devices such as pulse oximeters, blood pressure cuffs, and glucose meters, the PIC24F16KM202-E/SO delivers low-power operation, mixed-signal integration, and sufficient code space in a compact SOIC package. The 12-bit ADC captures biosensor signals with adequate resolution for SpO2 trending and ECG R-wave detection. The integrated op amps condition electrode inputs without external instrumentation amplifiers, reducing BOM and PCB area. XLP sleep modes extend battery life across multi-day patient monitoring cycles. The 28-pin SOIC package enables through-hole-friendly hand-soldering for low-volume medical device prototypes.
推荐
Low-Power Consumer Electronics
The PIC24F16KM202-E/SO fits low-power consumer electronics such as remote controls, fitness wearables, and electronic toys where battery life is critical and BOM cost must be minimized. The XLP technology delivers nanoamp sleep currents that extend coin-cell battery life to multi-year spans in standby applications. The integrated DAC and op amps can drive LED indicators, audio tones, or haptic feedback directly without companion ICs. With 16 KB Flash, application code, communication stacks (BLE, proprietary RF), and bootloader logic all fit in a single chip. The 28-pin SOIC package supports standard SMT assembly on consumer-grade PCB lines.
推荐
HVAC and Building Automation
The PIC24F16KM202-E/SO suits HVAC and building automation applications including smart thermostats, damper actuators, and room air-quality monitors. The Extended -40C to +125C temperature range handles rooftop and plenum mounting conditions. The 32 MHz core runs communication stacks (BACnet, MODBUS, or proprietary) while simultaneously servicing the Capture/Compare/PWM modules for triac-based AC control or variable-speed fan drive. The integrated ADC and op amps interface directly with thermistor, humidity, and CO2 sensor front-ends. 16 KB Flash is sufficient for application code plus a fail-safe firmware update bootloader.
推荐
Automotive Sensor Interfaces (Non-Safety)
The PIC24F16KM202-E/SO can serve automotive sensor interface applications outside of safety-critical paths, such as interior lighting controllers, seat position sensors, and HVAC blend-door actuators. The Extended -40C to +125C temperature grade meets automotive cabin thermal requirements. The integrated op amps and 12-bit ADC interface directly with position-feedback potentiometers and NTC thermistors. PWM channels drive small DC motors or LED strings without external MOSFET drivers in low-current applications. Note that for safety-critical systems such as airbags or braking, AEC-Q100 qualified PIC24/dsPIC parts should be selected instead.
推荐
推荐产品汇总
工程参考数据： PIC24F16KM202-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 | PIC24F16KM202-I/SO | PIC24F08KM202-I/SO | PIC24F16KL402-E/SO | PIC24F16KA102-E/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 10-bit |
| Integrated Op Amps | Yes | Yes | Yes | Yes | No |
关键差异点
- Integrated op amps and 8-bit DAC （对比 PIC24F16KA102-E/SO)
- Higher 12-bit ADC resolution （对比 PIC24F16KA102-E/SO)
- Larger 2 KB RAM （对比 PIC24F16KA102-E/SO)
设计说明
Estimated: At 32 MHz active mode with all peripherals enabled, the PIC24F16KM202-E/SO core draws approximately 8-15 mA from VDD. For battery-powered designs, leverage the XLP deep-sleep mode which drops current to microamp levels. Use the on-chip Low-Voltage Retention Sleep mode to maintain RAM contents during extended sleep without the full regulator active. Always place a 100 nF decoupling capacitor within 5 mm of the VDD pin and a bulk 10 uF tantalum or ceramic capacitor on the main supply rail.
The 28-pin SOIC wide-body package has a 1.27 mm pin pitch and standard SOIC land patterns. Place the MCU away from switching power supply inductors and high-current traces to minimize digital noise coupling into analog inputs. Provide a dedicated AVSS ground return path to the analog ground plane, and avoid running digital return currents through the analog ground. The MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for proper reset behavior during power-up.
A common mistake is using the Industrial-grade PIC24F16KM202-I/SO in an Extended-temperature application - always check the -E vs -I suffix carefully. Another pitfall is failing to configure unused pins as outputs to prevent floating input current draw; set all unused I/O to digital outputs with the latch cleared. When using the integrated op amps, configure the input pins as analog inputs (ANSx bits) or the digital input buffer will cause offset errors. The ICD pins (RB6/RB7) must be left in their default configuration or ICSP debugging will fail.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 PIC24 variants for automotive safety-critical applications.
