PIC24F16KA302-I/SP - 16-Bit XLP Microcontroller | Microchip
MPN： PIC24F16KA302-I/SP ✓ 啟用中PIC24F16KA302-I/SP 概覽
A microcontroller is a programmable system-on-chip that integrates a CPU core, memory, and peripherals such as analog converters, timers, communication interfaces, and I/O ports. The PIC24F16KA302 belongs to the PIC24 XLP family of 16-bit microcontrollers, which combine a modified Harvard architecture, dedicated Flash program memory, and power-management features intended for battery-powered and power-constrained equipment.
Key features include a 12-bit ADC, CTMU capacitive-measurement support, 17 I/O ports, operation from 1.8 V to 3.6 V, and an instruction throughput of 16 MIPS. The device adds Deep Sleep operating modes together with DSBOR, DSWDT, and an RTCC that can continue operating in low-power states. These characteristics make the MCU suitable for portable monitoring, sensing, and control products that must limit standby energy consumption.
The PIC24F16KA302 combines 16 KB of Flash, organized as 5.5K by 24 program words, with 2 KB of data RAM and 512 bytes of EEPROM. The 12-bit ADC provides greater resolution than an 8-bit converter for applications involving battery voltage, temperature, or analog sensor measurements. CTMU adds a charge-transfer measurement capability that can be used for capacitive buttons, touch sensing, and basic analog measurement functions.
Typical applications include battery-powered sensor nodes, compact environmental monitors, handheld test equipment, capacitive-input user interfaces, and low-power industrial control panels. The 28-pin SPDIP package also supports through-hole prototyping and expansion boards. Because the MCU can operate down to 1.8 V, designers can use it in 2-cell energy-harvesting, coin-cell, and regulated 3 V systems where a 5 V-only controller would be unsuitable.
When designing the power path, select the regulator for both the 1.8 V to 3.6 V operating range and the peak current required by the ADC, CTMU, I/O pins, and attached peripherals. Keep the Watchdog Timer, brown-out detection, and Deep Sleep configuration in the firmware plan because these features materially affect both standby consumption and recovery behavior.
This page consolidates the device specifications, package details, engineering alternatives, and practical design guidance for engineers evaluating the PIC24F16KA302-I/SP in low-power embedded systems.
直接替換替代品，適用於 PIC24F16KA302-I/SP — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24F16KA302-I/SP （相同外形與佔位） — 差異在於 Package, ADC, CTMU, RTCC, I/O Pins.
PIC24F16KA301-I/SP
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24F16KA302-E/SP
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24F16KA201-I/SP
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24F16KA202-I/SP
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24F16KA304-I/SP
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24F16KA302-I/SP 最大額定值與電氣特性
| Product Type | 16-bit Flash microcontroller |
| CPU Architecture | 16-bit PIC24 modified Harvard architecture |
| Maximum Clock Speed | 32 MHz |
| Instruction Throughput | 16 MIPS |
| Program Memory | 16 KB Flash |
| Program Memory Organization | 5.5K x 24 words |
| Data RAM | 2 KB |
| EEPROM | 512 bytes |
| ADC Resolution | 12 bit |
| CTMU | Supported |
| I/O Ports | 17 I/O |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Low-Power Technology | XLP |
| Deep Sleep Peripherals | DSBOR, DSWDT, RTCC |
| 工作溫度範圍 | -40°C to +85°C |
| 封裝 | 28-pin SPDIP, 0.300 inch lead pitch |
| 安裝類型 | Through-hole |
| RoHS 狀態 | Lead-free plastic SPDIP |
| Program Memory Type | Flash |
PIC24F16KA302-I/SP 28-pin spdip, 0.300 inch lead pitch 腳位配置指南
PIC24F16KA302-I/SP（28-pin spdip, 0.300 inch lead pitch 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC24F16KA302-I/SP.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC24F16KA302-I/SP 適用於 6 應用s: Battery-Powered Sensor Node, Portable Environmental Monitor, Capacitive-Touch User Interface, Low-Power Industrial Control Panel, Energy-Harvesting Instrument, Compact Handheld Test Instrument.
Battery-Powered Sensor Node
The PIC24F16KA302-I/SP fits battery-powered sensor nodes because its 1.8 V to 3.6 V supply range supports low-energy operating points while the 16-bit core provides 16 MIPS at 32 MHz. Its 16 KB of Flash can hold acquisition routines, scaling logic, and a communication protocol, while 2 KB of RAM supports working buffers. Deep Sleep, DSWDT, and DSBOR allow the firmware to isolate peripheral loads between measurements. Use a regulator with a low quiescent current and verify the ADC reference requirement before the energy budget is finalized.
推薦
Portable Environmental Monitor
A portable environmental monitor can use the PIC24F16KA302-I/SP for periodic temperature, humidity, and battery-voltage acquisition. The 12-bit ADC provides 4096 counting levels, which improves resolution when conditioning low-amplitude sensor outputs, and CTMU supports capacitive sensing or auxiliary measurement functions. Its 512 bytes of EEPROM provides nonvolatile storage for calibration or threshold data. The 28-pin SPDIP package is also convenient for prototypes and educational instruments where breadboard or socket-based assembly is preferred.
推薦
Capacitive-Touch User Interface
The CTMU makes the PIC24F16KA302-I/SP suitable for compact capacitive-button and touch-pad interfaces. The controller can drive charge-transfer measurements, evaluate electrode capacitance, and apply filtering or debounce logic without requiring a separate touch controller. A 32 MHz clock gives adequate timing resolution for short measurement intervals, while Deep Sleep can reduce demand while the interface is idle. Validate electrode geometry, acquisition timing, and moisture tolerance against the mechanical enclosure before production.
推薦
Low-Power Industrial Control Panel
The PIC24F16KA302-I/SP can serve as the local controller in a low-power industrial panel that reads switches or sensors and drives indicators, alarms, or communication isolators. Its 17 I/O ports provide a practical mix of digital inputs and outputs for a compact control board, and the -40°C to +85°C grade supports industrial temperature conditions. The 12-bit ADC may monitor a feedback voltage or potentiometer, while 16 KB of Flash is sufficient for structured control and diagnostics. Use ESD protection and proper isolation at external connector boundaries.
推薦
Energy-Harvesting Instrument
The 1.8 V minimum operating voltage of the PIC24F16KA302-I/SP allows operation from low-energy harvested sources or a compact regulator with minimal headroom. XLP Deep Sleep functionality helps separate long idle periods from short measurement and processing cycles, and DSWDT provides a low-power watchdog option during extended operation. The 16-bit architecture and 16 MIPS throughput support more elaborate compensation than a simple 8-bit controller. Actual harvesting feasibility depends on the available source impedance, storage capacitor, and required measurement duty cycle.
推薦
Compact Handheld Test Instrument
The PIC24F16KA302-I/SP is suitable for compact handheld meters where a numeric display, keypad input, measurement channel, and serial data output must share a small board. The 32 MHz clock and 16 KB of Flash support menu handling, calibration tables, and measurement processing, while the 12-bit ADC serves as the central measurement converter. CTMU can provide additional capacitance or analog sensing functions. Through-hole SPDIP construction simplifies socketed prototypes and rework, although a production redesign may migrate the same device to a smaller surface-mount package.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24F16KA302-I/SP — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24F16KA301-I/SP | PIC24F16KA302-E/SP | PIC24F16KA201-I/SP | PIC24F16KA202-I/SP | PIC24F16KA304-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP |
| CPU Architecture | 16-bit PIC24 | 16-bit PIC24 | 16-bit PIC24 | 16-bit PIC24 | 16-bit PIC24 | 16-bit PIC24 |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Extended temperature grade | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
主要差異化特點
- Full 16 KB memory configuration in a 28-pin through-hole package (對比PIC24F16KA301-I/SP)
- Industrial-temperature ordering option (對比PIC24F16KA302-E/SP)
- 12-bit conversion with CTMU in the same mixed-signal MCU (對比PIC16F76-I/SP)
- Low-voltage operation with dedicated Deep Sleep peripherals (對比PIC24F16KA201-I/SP)
設計說明
Budget the low-power modes at the firmware level because the MCU, ADC, CTMU, timers, and I/O pins can each affect standby demand. Disable unused peripherals before entering Deep Sleep, retain the Watchdog Timer when appropriate, and configure port outputs to avoid leakage through external pull networks. Use the manufacturer power-management guidance to select the correct sleep mode for the required wake-up source and timing.
Place decoupling capacitors close to the device power pins and route analog inputs away from switching nodes and high-current traces. The 12-bit ADC can resolve small input changes, but its practical accuracy still depends on a clean reference, suitable source impedance, and grounding. For the 28-pin SPDIP implementation, reserve space for the socket or plated through-hole footprint and maintain accessibility for programming and inspection.
Do not select a lower-memory family member solely because its footprint matches. Confirm Flash capacity, RAM, EEPROM, ADC channels, CTMU functions, timer resources, interrupt priorities, and boot-configuration pins in the manufacturer family documentation. The -I/SP and -E/SP options also differ in temperature qualification, so a footprint match alone does not establish production equivalence.
Treat the 12-bit ADC input as a precision analog node. Use a short trace, a source impedance compatible with the ADC acquisition requirements, and an input filter sized for the measurement bandwidth. For CTMU measurements, keep electrode traces short and isolated from high-current switching paths. Validate capacitive channels across temperature, humidity, and the complete enclosure rather than relying on bench-top readings alone.
合規資訊
The -I/SP configuration is identified as a lead-free plastic SPDIP package. RoHS, REACH, halogen-free, and conflict-minerals declarations are not stated in the cited product records.
