PIC24F16KL401-E/SS - 16-bit XLP MCU, 16KB Flash, 32MHz | Microchip
MPN： PIC24F16KL401-E/SS ✓ 啟用中PIC24F16KL401-E/SS 概覽
A 16-bit microcontroller (MCU) is a programmable integrated circuit that processes 16-bit data words per instruction cycle and integrates CPU, memory, and peripherals on a single die. PIC24F MCUs sit within Microchip's broader 16-bit MCU hierarchy: PIC24F -> 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. Compared with 8-bit PIC MCUs, the PIC24F family provides higher computational throughput, larger address space, and richer peripherals while preserving the PIC migration path via peripheral compatibility with PIC18 devices.
Key features include the nanoWatt XLP idle current typically below 1 uA, an integrated 10-bit ADC with multiple input channels, MSSP supporting I2C and SPI, CCP/ECCP modules for PWM/motor control, and up to 18 general-purpose I/O pins. The 32MHz maximum operating frequency delivers 16 MIPS instruction throughput, ample for sensor fusion, user-interface scanning, and low-bandwidth communication tasks. The device supports in-circuit serial programming (ICSP) and standard debugging via the PIC24 in-circuit debugger.
Typical applications include portable consumer electronics (wearable fitness bands, remote controls, electronic toys), medical disposables (inhalers, glucose-meter accessories), safety/security peripherals, low-cost sensor nodes, and battery-powered industrial monitoring endpoints. The combination of small SSOP-20 footprint and deep-sleep XLP modes allows designs to run for years on coin-cell or 2xAA batteries.
Designers should follow Microchip's PIC24F KL family datasheet for recommended decoupling (100 nF + bulk per VDD/AVDD pair), unused-pin termination to reduce sleep-mode leakage, and proper ICSP header placement for production programming. Migration between -E (extended) and -I (industrial) temperature grades is pin-compatible, but verify thermal-grade and qualification requirements before substitution.
直接替換替代品，適用於 PIC24F16KL401-E/SS — 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： PIC24F16KL401-E/SS （相同外形與佔位） — 差異在於 Operating Temperature, Package, ADC, I/O Pins, Program Memory (Flash).
PIC24F16KL401-I/SS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24F08KL401-I/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC24F08KL401-E/SS
✅ 直接替換聯絡詢價
查看資料表 →PIC24F08KL301-E/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24F16KA101-I/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24F16KL401-E/SS 最大額定值與電氣特性
| Core Architecture | PIC24F (16-bit MIPS16e) |
| Program Memory (Flash) | 16 KB (5.5K x 24 instructions) |
| Data SRAM | 1 KB |
| EEPROM | 512 B |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 18 |
| ADC | 10-bit |
| Communication Interfaces | MSSP (I2C/SPI), UART |
| PWM Modules | CCP/ECCP |
| Low-Power Technology | nanoWatt XLP |
| 工作溫度 | -40 C to +125 C (E = Extended) |
| 封裝 | 20-pin SSOP |
| 安裝類型 | Surface Mount |
| Programming/Debug | ICSP, supports PICkit/MPLAB ICD |
PIC24F16KL401-E/SS 腳位配置
| 腳位 1 | RA0 — I/O / AN0 |
| 腳位 2 | RA1 — I/O / AN1 |
| 腳位 3 | RA2 — I/O / AN2 |
| 腳位 4 | RA3 — I/O / AN3 |
| 腳位 5 | RA4 — I/O / AN4 |
| 腳位 6 | RA5 — I/O / AN5 |
| 腳位 7 | RA6 — I/O / OSC1 |
| 腳位 8 | RA7 — I/O / OSC2 |
| 腳位 9 | VSS — Ground |
| 腳位 10 | VDD — Positive supply |
| 腳位 11 | RB0 — I/O / AN8 |
| 腳位 12 | RB1 — I/O / AN9 |
| 腳位 13 | RB2 — I/O / AN10 |
| 腳位 14 | RB3 — I/O / AN11 |
| 腳位 15 | RB4 — I/O |
| 腳位 16 | RB5 — I/O |
| 腳位 17 | RB6 — I/O / PGEC |
| 腳位 18 | RB7 — I/O / PGED |
| 腳位 19 | VSS — Ground |
| 腳位 20 | VDD — Positive supply |
典型應用
PIC24F16KL401-E/SS 適用於 6 應用s: Wearable Fitness Bands, Battery-Powered Sensor Nodes, Medical Disposable Devices, Consumer Remote Controls, Industrial Monitoring Endpoints, Electronic Toys and Hobby Projects.
Wearable Fitness Bands
The PIC24F16KL401-E/SS suits wearable fitness bands thanks to its nanoWatt XLP deep-sleep current below 1 uA and 32MHz MIPS throughput. Its 16 KB Flash and 1 KB SRAM are sufficient to run heart-rate sampling at 100 Hz, accelerometer step counting, and BLE command handling via the MSSP SPI port. The 20-pin SSOP footprint leaves enough headroom for a coin-cell holder and an SPI BLE module on a 15x20 mm flex PCB. Designers should keep the ADC active only during sensor read windows to leverage the device's idle/doze modes for multi-month battery life.
推薦
Battery-Powered Sensor Nodes
For remote wireless sensor nodes operating from 2xAA or Li-SOCl2 primary cells, the PIC24F16KL401-E/SS provides the right mix of low power and 16-bit processing. Its 1.8V minimum VDD allows direct 2xAA operation without boost regulation, while the 10-bit ADC reads battery voltage, temperature, and one external sensor. Combined with an SPI radio like Sub-GHz transceivers, the PIC24F KL can sleep at sub-1 uA and wake on timer or external interrupt. The Extended -E temperature grade handles outdoor deployments down to -40 C.
推薦
Medical Disposable Devices
The PIC24F16KL401-E/SS is a strong fit for disposable medical devices such as inhalers, single-use diagnostic strips, and pill dispensers. Its small 20-pin SSOP footprint integrates easily into miniaturized enclosures, while nanoWatt XLP provides years of shelf life on a coin cell. The CCP/ECCP module can drive a precision piezo buzzer for dosage confirmation, and the MSSP I2C port interfaces with disposable sensor cartridges. The 10-bit ADC ensures accurate signal acquisition from electrochemical sensors commonly used in disposable diagnostics.
推薦
Consumer Remote Controls
For IR/RF remote controls and consumer accessories, the PIC24F16KL401-E/SS offers low cost, low standby current, and sufficient I/O for key-scanning matrices. Its 18 GPIOs handle 4x4 keypads or capacitive touch via the CTMU-equivalent peripheral on related KL parts, plus an IR transmitter driver via CCP PWM. Battery life of 5+ years is realistic with proper sleep-mode firmware. The 32MHz speed lets designers implement voice-button wake-word triggers using the integrated ADC and PWM peripherals.
推薦
Industrial Monitoring Endpoints
The PIC24F16KL401-E/SS supports industrial monitoring endpoints (temperature, humidity, pressure) in factory automation networks. The MSSP module interfaces with RS-485 transceivers or I2C sensors, and the 10-bit ADC reads 4-20 mA loop signals via a shunt resistor. Extended -40 to +125 C temperature grade (E suffix) suits cabinet-mounted equipment, and 1.8V to 3.6V operation simplifies integration with 3.3V industrial sensor buses. Combined with MODBUS RTU firmware, the PIC24F KL can serve as a compact slave device on factory floors.
推薦
Electronic Toys and Hobby Projects
The PIC24F16KL401-E/SS is well-suited for electronic toys, hobby robotics, and STEM education kits. Its 16 KB Flash accommodates multi-feature firmware (motor control via ECCP, sound playback via PWM, IR communication via UART), and 32 MHz CPU enables responsive sensor-driven behaviors. The SSOP-20 package is breadboard-compatible via a breakout PCB, making it friendly for hobbyists. MPLAB X IDE and XC16 compiler are free for non-commercial use, lowering the learning-curve entry cost.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24F16KL401-E/SS — 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 | PIC24F16KL401-I/SS | PIC24F08KL401-I/SS | PIC24F08KL401-E/SS | PIC24F08KL301-E/SS | PIC24F16KA101-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit |
| Flash | 16 KB | 16 KB | 8 KB (-50%) | 8 KB (-50%) | 8 KB (-50%) | 16 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 |
| Max Frequency | 32 MHz (16 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 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 |
| Temperature Grade | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Extended -40C to +125C | Industrial -40C to +85C |
主要差異化特點
- Larger Flash memory within same SSOP-20 KL family (對比PIC24F08KL401-I/SS)
- Extended temperature grade for harsh environments (對比PIC24F16KL401-I/SS)
- Lower cost than PIC24F KA family for minimal designs (對比PIC24F16KA101-I/SS)
設計說明
Place a 100 nF decoupling capacitor as close as possible to each VDD pin (pins 10 and 20) and a bulk 1-10 uF tantalum or ceramic capacitor on the same power rail. Connect all VSS pins to a low-impedance ground plane. For best nanoWatt XLP performance, configure unused pins as digital outputs with low-level drive to minimize leakage. Refer to Microchip's PIC24F KL family datasheet section on 'Power-Saving Modes' for Sleep, Idle, and Doze configuration.
The 20-pin SSOP package has 0.65 mm pin pitch, which requires careful PCB land pattern design per IPC-7351. Reserve a 5x5 mm keep-out area beneath the device to avoid signal routing on inner layers and to allow bottom-side components. Maintain a continuous ground plane under the MCU to provide a low-impedance return path for high-speed signals and to improve EMI/ESD immunity.
Route the ICSP pins (PGED/PGEC, typically shared with RB6/RB7) with short traces and avoid placing series resistors on these lines in production - some debuggers cannot drive the protected lines. Keep ADC analog inputs away from high-frequency digital traces; if unavoidable, route them perpendicular and provide a ground guard ring. Use the AVSS pin and tie AVDD to VDD with a ferrite bead if noise-sensitive analog measurements are required.
Do not exceed the absolute maximum VDD of 4.0V - the PIC24F KL is a 3.3V part and connecting 5V to any I/O pin will damage the device. Ensure the CONFIG register is locked after programming to prevent runaway firmware from accidentally reconfiguring critical pins. Finally, configure the watchdog timer (WDT) in long-timeout mode and enable it in firmware for industrial applications to recover from firmware lockups.
合規資訊
RoHS and lead-free per Microchip product page. AEC-Q100 qualification is NOT available for this part; for automotive, see PIC24F KL family variants with -VAO suffix. Conflict-minerals compliance declared by Microchip.
