PIC24F16KA302-I/SS - 32MHz 16-bit Low-Power MCU | Microchip
料号： PIC24F16KA302-I/SS ✓ 量产中PIC24F16KA302-I/SS 概述
A microcontroller is an integrated circuit containing a processor core, program memory, data memory, and peripherals on one die. The PIC24 family uses a 16-bit RISC architecture, while XLP, or eXtreme Low Power, describes Microchip technologies that reduce current consumption in operating and low-power states. This places the PIC24F16KA302 in the hierarchy of embedded controller, microcontroller, semiconductor, and low-power power-management system.
The device provides 16 MIPS processing performance at its 32 MHz maximum clock, with 5.5K x 24 words of Flash program memory and 512 bytes of EEPROM. Its 12-bit ADC supports analog measurements, while CTMU adds capacitive-measurement capabilities useful in touch, sensing, and diagnostic products. The DSBOR, DSWDT, and RTCC functions can remain active in Deep Sleep, helping preserve system state and monitor timing or brownout conditions while energy use is reduced.
The -I/SS ordering code identifies the industrial-grade 28-pin SSOP configuration presented in the verified distributor data. Operating supply voltage is 1.8 V to 3.6 V, making the controller appropriate for low-voltage embedded systems that can use a 3.3 V rail directly. Its 17 I/O pins provide external interfaces for sensors, indicators, communications, and control functions without requiring a separate programmable logic device.
Typical applications include battery-powered industrial sensors, portable medical and diagnostic equipment, low-power environmental monitors, compact control panels, and connected measurement products. For designs operating from a battery, the XLP architecture and Deep Sleep peripherals are particularly useful. For designs requiring analog precision, the 12-bit ADC provides a higher resolution than an 8-bit converter and can be paired with external sensors or conditioning circuits.
PCB design should preserve the verified 28-pin SSOP footprint and provide adequate decoupling and grounding around the microcontroller. Firmware must also configure the DSBOR, DSWDT, RTCC, ADC, and CTMU functions for the intended battery life rather than assuming that Deep Sleep alone provides a specific current level. Exact pin assignments, operating-temperature limits, and detailed electrical characteristics must be confirmed against the Microchip manufacturer documentation before layout release.
This product page consolidates the verified 32 MHz, 16 KB Flash, 2 KB RAM, 512-byte EEPROM, 12-bit ADC, CTMU, and 1.8 V to 3.6 V supply information with package, purchasing, lifecycle, and replacement guidance. It also distinguishes true same-package drop-in candidates from electrically similar devices that require a different PCB footprint, helping engineers make a safer sourcing decision.
直接替换替代料： PIC24F16KA302-I/SS ——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： PIC24F16KA302-I/SS （相同外形与封装尺寸） ——差异在于 EEPROM, Package, ADC, Core, Deep Sleep Peripherals.
PIC24F16KA302-E/SS
✅ 直接替换联系询价
查看数据手册 →PIC24F16KA202-I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24F16KA102-I/SS
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →PIC24F16KA302-I/SS 最大额定值与电气特性
| Product Type | 16-bit PIC24 XLP flash microcontroller |
| Maximum Clock Speed | 32 MHz |
| Instruction Throughput | 16 MIPS |
| Flash Program Memory | 16 KB (5.5K x 24 words) |
| RAM | 2 KB |
| EEPROM | 512 bytes |
| ADC Resolution | 12 bits |
| ADC Peripheral | Present |
| CTMU Peripheral | Present |
| I/O Port Count | 17 |
| 工作电源电压 | 1.8 V to 3.6 V |
| 封装 | 28-pin SSOP |
| Low-Power Technology | PIC24 XLP |
| Deep Sleep Peripherals | DSBOR, DSWDT, and RTCC |
| 生命周期状态 | Active |
| Temperature Grade Code | -I, industrial grade |
| Termination Finish | Lead-free plastic |
| Program Memory Type | Flash |
| Architecture | 16-bit |
PIC24F16KA302-I/SS 28-pin ssop 引脚配置指南
PIC24F16KA302-I/SS（28-pin ssop 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC24F16KA302-I/SS.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC24F16KA302-I/SS 适用于 6 应用s: Battery-Powered Industrial Sensors, Portable Medical and Diagnostic Devices, Environmental Monitoring, Low-Power IoT and Wireless Sensor Nodes, Touch-Key and Capacitive Control Panels, Compact Control and Monitoring Panels.
Battery-Powered Industrial Sensors
The PIC24F16KA302-I/SS fits battery-powered industrial sensors because it combines a 32 MHz, 16-bit processor with PIC24 XLP low-power features and Deep Sleep-capable DSBOR, DSWDT, and RTCC peripherals. Its 12-bit ADC can digitize temperature, pressure, or level signals, while 17 I/O ports support sensor inputs, status indicators, and communications. Operating from 1.8 V to 3.6 V also permits direct use with suitably regulated low-voltage power sources. The principal design benefit is configurability: firmware can keep measurement and timing activity selective while placing the controller into Deep Sleep between samples. Actual battery life must be calculated from the selected clock, ADC duty cycle, RTCC usage, and all peripheral states rather than from processor speed alone.
推荐
Portable Medical and Diagnostic Devices
PIC24F16KA302-I/SS is suitable for compact diagnostic and portable measurement equipment that needs mixed analog and digital control in a low-power package. The 12-bit ADC provides useful resolution for resistive, capacitive, or externally conditioned sensor signals, and the CTMU adds a way to evaluate capacitive changes associated with touch controls or simple probes. Its 16 KB of Flash, 2 KB of RAM, and 512 bytes of EEPROM provide space for control logic, calibration constants, and retained settings. Because this is a microcontroller rather than a medical-certified analog front end, engineers must define accuracy, isolation, leakage, and safety requirements separately and verify the selected grade against the official electrical documentation.
推荐
Environmental Monitoring
The PIC24F16KA302-I/SS can form the control core of an environmental monitor that periodically measures humidity, temperature, gas, or particulate sensors. Its 32 MHz processing capability supports responsive sampling, filtering, and data formatting, while XLP and Deep Sleep reduce energy use between measurement cycles. The 17 I/O ports are useful for digital sensors, alarm outputs, status LEDs, and a low-power serial interface, and the 512-byte EEPROM can retain calibration or configuration information. Designers should use the 12-bit ADC with careful source impedance and filtering because the ADC is one part of a complete analog measurement chain. Firmware should disable unused peripherals and configure DSWDT, DSBOR, and RTCC deliberately to obtain predictable low-power behavior.
推荐
Low-Power IoT and Wireless Sensor Nodes
PIC24F16KA302-I/SS is well matched to compact IoT sensor nodes that wake periodically to acquire data and then return to a low-power state. Its 1.8 V to 3.6 V operating range supports low-voltage supply designs, and the CTMU can support simple capacitive sensing in addition to the conventional 12-bit ADC. Seventeen I/O pins leave room for a radio-control signal, sensor bus, configuration input, and status indicators. The XLP architecture and Deep Sleep-capable RTCC, DSWDT, and DSBOR can help reduce average consumption, but a wireless node's overall current will usually be dominated by the radio. The MCU should therefore be placed into a coordinated low-power state, with required communications hardware and sensors managed according to the system timing budget.
推荐
Touch-Key and Capacitive Control Panels
The PIC24F16KA302-I/SS can implement compact touch-key or capacitive control interfaces by combining its CTMU peripheral with its 12-bit ADC and 17 available I/O lines. A 32 MHz PIC24 core provides enough timing and processing performance for debouncing, calibration, filtering, and user-interface logic, while XLP allows the control panel to consume little power while waiting for input. The 28-pin SSOP package also supports compact board construction. Touch performance depends on electrode design, parasitic capacitance, shielding, and careful analog layout, so the MCU selection alone does not determine accuracy. Firmware should calibrate each channel during production or startup, reject out-of-range baselines, and use RTCC or DSWDT for deterministic timing without keeping the CPU continuously active.
推荐
Compact Control and Monitoring Panels
PIC24F16KA302-I/SS supports compact control panels that combine sensor monitoring, status indication, and local configuration. Its 2 KB RAM and 16 KB Flash are sufficient for modest control tasks, while 512 bytes of EEPROM can preserve selected operating parameters. Seventeen I/O ports provide practical connectivity for indicators, pushbuttons, relay-control inputs, and serial communications, and the 12-bit ADC can supervise analog process values. For panel designs with human interaction, the controller can manage debouncing and display updates while using Deep Sleep when no operator activity is present. Designers should preserve the exact 28-pin SSOP footprint and avoid assuming compatibility with the visually similar 28-pin SOIC package. Power sequencing and unused-pin treatment must follow the Microchip datasheet.
推荐
推荐产品汇总
工程参考数据： PIC24F16KA302-I/SS ——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 | PIC24F16KA302-E/SS | PIC24F16KA202-I/SS | PIC24F16KA102-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Maximum Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Program Memory | 16 KB (5.5K x 24 words) | 16 KB | 16 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
关键差异点
- Combines 32 MHz processing with Deep Sleep-capable low-power peripherals （对比 PIC24F16KA202-I/SS)
- Verified 12-bit ADC and CTMU feature set （对比 PIC24F16KA102-I/SS)
- Exact same-package ordering family with unchanged headline memory （对比 PIC24F16KA302-E/SS)
- Twenty-seven-pin-level integration through 17 I/O ports （对比 PIC24F16KA102-I/SS)
设计说明
Preserve the exact 28-pin SSOP footprint and verify it against the current Microchip package drawing. The ordering codes PIC24F16KA302-I/SS and PIC24F16KA302-I/SO both use 28 pins, but SSOP and SOIC have different lead spacing and body widths. Placing the SOIC version on an SSOP footprint will prevent proper soldering and may damage the device. Decoupling components should be located close to the relevant supply and ground pins according to the manufacturer layout guidance.
The verified operating supply range is 1.8 V to 3.6 V. Confirm that the regulator tolerance, startup ramp, transient response, and peripheral load currents keep every supply point inside that range. For battery-powered designs, activate XLP and Deep Sleep modes only after configuring DSBOR, DSWDT, RTCC, ADC, CTMU, and unused I/O states. Estimate average current from measured active and sleep currents rather than assuming that the 32 MHz maximum clock represents continuous operating current.
Treat ADC and CTMU inputs as sensitive analog nodes. Keep them short, use suitable source impedances, and route them away from switching-power conductors and digital return paths. Provide a quiet reference strategy appropriate to the selected sensor, place required filtering close to the MCU, and follow the manufacturer recommendations for grounding and external component placement. If CTMU is used for capacitive sensing, evaluate electrode capacitance, parasitic coupling, guard structures, and calibration before assigning production performance.
Do not substitute PIC24F16KA302-I/SO or another package simply because the pin count is also 28. Similarly, a temperature-grade or family suffix can change qualification, operating limits, or peripheral mapping even when Flash, RAM, and clock ratings match. Validate the full ordering code, pin names, power pins, programming pins, reset behavior, ADC channels, CTMU connections, and package drawing before releasing a PCB or approving a purchasing substitution.
合规信息
The verified package information identifies the device as lead-free plastic. RoHS, REACH, halogen-free status, and conflict-minerals compliance were not explicitly provided and are therefore recorded as unknown.
