PIC24F04KL101-E/P - 16-bit MCU, 32MHz, 4KB Flash, 20-PDIP | Microchip
MPN： PIC24F04KL101-E/P ✓ 啟用中PIC24F04KL101-E/P 概覽
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals (I/O, timers, communication interfaces). A 16-bit MCU like the PIC24F04KL101 processes data in 16-bit words, doubling the arithmetic throughput of 8-bit MCUs while retaining low cost and ultra-low power consumption. The PIC24F sits in the hierarchy: microcontroller -> 16-bit MCU -> PIC24F family -> "KL" sub-family (low-power, low-cost, low pin count).
Key features of the PIC24F04KL101 include 4KB self-programmable Flash with table-read/table-write support, 512 bytes of SRAM, a 3-channel 16-bit timer, MSSP (Master Synchronous Serial Port) supporting both I2C and SPI, CCP (Capture/Compare/PWM), 10-bit ADC, nanoWatt XLP deep-sleep modes down to nanoampere quiescent current, and an integrated 32kHz low-power oscillator. The device operates from 1.8V to 3.6V, making it ideal for single-cell lithium or two-AA battery applications.
Architecturally, the PIC24F "KL" family uses a modified Harvard architecture with separate 16-bit instruction and 24-bit data paths, allowing single-cycle instruction fetch with single-cycle data access. The nanoWatt XLP technology incorporates multiple power-saving modes (Sleep, Idle, Doze) and a dedicated low-power Real-Time Clock/Calendar domain, drawing currents measured in nanoamps in deep-sleep with RTCC active. This combination delivers extended battery life for always-on sensor applications.
Typical applications include low-cost consumer electronics (portable media players, toys, remote controls), battery-powered medical disposables (glucose meters, inhalers), safety/security peripherals (wireless sensors, smoke detector bases), industrial sensor nodes (LoRaWAN/BLE end-nodes), and any application migrating from PIC18 to 16-bit PIC24F while keeping the same DIP-20 footprint. The through-hole 20-PDIP package is favored for hand-prototyping, education, and field-replaceable designs.
When designing with the PIC24F04KL101-E/P, place a 0.1uF decoupling capacitor as close as possible to the VDD pin and a 10uF bulk capacitor on the supply rail. Use the ICSP interface (PGECx/PGEDx pairs) for in-circuit programming and debugging, and select the correct pair for your PCB layout. Do not exceed the 3.6V absolute maximum on any pin to avoid latch-up.
This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving you a single reference for sourcing, comparing, and deploying the PIC24F04KL101-E/P.
直接替換替代品，適用於 PIC24F04KL101-E/P — 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： PIC24F04KL101-E/P （相同外形與佔位） — 差異在於 Package, Program Memory (Flash), ADC, Operating Temperature, Timers.
PIC24F04KL100-E/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24F04KL200-E/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24F08KL101-E/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24F16KL101-E/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24FV16KA101-E/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24HJ12GP201-E/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24F04KL101-E/P 最大額定值與電氣特性
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 4 KB (1.375K x 24 instructions) |
| Data Memory (RAM) | 512 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| 工作溫度範圍 | -40 C to +125 C (Industrial, -E suffix) |
| 封裝 | 20-pin PDIP (DIP, 0.300 inch / 7.62 mm row spacing) |
| 安裝類型 | Through-Hole |
| Communication Interfaces | MSSP (I2C/SPI), UART |
| PWM/CCP | Yes (Capture/Compare/PWM modules) |
| Low-Power Technology | nanoWatt XLP |
| ICSP | Yes (In-Circuit Serial Programming via PGECx/PGEDx) |
| RoHS 狀態 | Compliant |
| MSL 等級 | Not applicable (through-hole package) |
PIC24F04KL101-E/P 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, active low |
| 腳位 2 | RA0 — Port A bit 0 / analog input |
| 腳位 3 | RA1 — Port A bit 1 / analog input |
| 腳位 4 | RB0 — Port B bit 0 |
| 腳位 5 | RB1 — Port B bit 1 |
| 腳位 6 | RB2 — Port B bit 2 |
| 腳位 7 | RB3 — Port B bit 3 |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | RA2 — Port A bit 2 / analog input |
| 腳位 10 | RA3 — Port A bit 3 / analog input |
| 腳位 11 | RB4 — Port B bit 4 |
| 腳位 12 | RA4 — Port A bit 4 |
| 腳位 13 | RA5 — Port A bit 5 |
| 腳位 14 | VDD — Positive supply voltage (1.8V-3.6V) |
| 腳位 15 | OSC1 — External oscillator input |
| 腳位 16 | OSC2 — External oscillator output |
| 腳位 17 | RA6 — Port A bit 6 |
| 腳位 18 | RA7 — Port A bit 7 |
| 腳位 19 | VSS — Ground reference |
| 腳位 20 | VDD — Positive supply voltage (1.8V-3.6V) |
典型應用
PIC24F04KL101-E/P 適用於 6 應用s: Battery-Powered Sensor Nodes, Disposable Medical Devices, Cost-Sensitive Consumer Electronics, Industrial Sensor Conditioning, Educational & Prototyping Platforms, Safety & Security Peripherals.
Battery-Powered Sensor Nodes
The PIC24F04KL101-E/P is engineered for low-duty-cycle wireless sensor nodes where the MCU spends 99% of its time asleep. Its nanoWatt XLP technology draws under 20 nA in deep-sleep with the RTCC running on the secondary 32 kHz oscillator, while a wake-up event triggers a 16 MIPS core that processes sensor data and transmits a packet before re-entering sleep. With 1.8V-3.6V VDD, the part can run directly from a single CR2032 coin cell or two AA batteries without a boost regulator. The integrated 10-bit ADC reads thermistor, photodiode, or battery-monitor signals, and the MSSP drives an SPI LoRa/BLE radio. Compared with a discrete low-power MCU + supervisor solution, the KL101 cuts BOM by 3-4 parts.
推薦
Disposable Medical Devices
Handheld and disposable medical products (glucose meters, peak-flow meters, single-use inhalers) need a low-cost MCU that still offers reliable analog measurement and battery longevity. The PIC24F04KL101-E/P provides a 10-bit ADC accurate enough for sensor readout, nanoWatt XLP for shelf-life extending sleep currents, and a 20-PDIP package that simplifies hand-assembly for short production runs. The industrial -40C to +125C operating range covers refrigerated pharmaceutical storage and warm-clinic use cases. The MSSP supports I2C OLED displays commonly used in patient-facing readouts. Drop-in compatibility with the larger PIC24F04KL200-E/P (1KB RAM) gives firmware engineers a path to add more sophisticated UI without a PCB change.
推薦
Cost-Sensitive Consumer Electronics
The PIC24F04KL101-E/P is the workhorse of cost-sensitive 16-bit consumer products: portable media players, electronic toys, remote controls, and personal-care appliances. Designers migrating from 8-bit PIC18 parts gain 16-bit arithmetic and 16 MIPS performance with a familiar MPLAB X toolchain and a peripheral set (MSSP, CCP, ADC) that mirrors the PIC18, shortening the learning curve. The 20-PDIP through-hole package keeps the assembly process compatible with hobbyist and small-batch hand-soldering, while the SOIC-20 and SSOP-20 siblings (PIC24F04KL101-E/SO, -E/SS) offer surface-mount options for high-volume reflow. At less than $1.20 per unit at 1,000-piece qty, the KL101 undercuts most Cortex-M0+ competitors on BOM cost.
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Industrial Sensor Conditioning
Industrial 4-20 mA loop-powered transmitters, RTD/thermocouple signal conditioners, and remote I/O modules need an MCU that can operate across -40C to +125C and tolerate wide supply transients. The PIC24F04KL101-E/P's industrial temperature grade (-E suffix), 1.8V-3.6V VDD, and integrated 10-bit ADC make it a strong fit for these applications. The MSSP drives a 4-20 mA DAC or digital isolator, while the 16-bit timer captures pulse-counted flow-meter events with sub-microsecond resolution. The 20-PDIP package eases integration into legacy through-hole industrial PCBs that still dominate PLC and DCS designs, and AEC-Q100 grade is available in the -Q version for harsher automotive/industrial environments.
推薦
Educational & Prototyping Platforms
The 20-PDIP package of the PIC24F04KL101-E/P is breadboard-friendly, making it a favorite in undergraduate embedded-systems curricula and maker communities. Students get 16-bit performance and 16 MIPS throughput without leaving the familiar PIC ecosystem, while the ICSP interface allows on-the-fly flash reprogramming with a PICkit 3/4 or Snap programmer. The MPLAB X IDE, XC16 compiler, and MCC code configurator are free, and the 4KB Flash capacity supports lab projects such as I2C sensor logging, PWM motor control via CCP, and 10-bit ADC waveform capture. Educators value the 20-PDIP because damaged parts can be swapped by hand in seconds.
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Safety & Security Peripherals
Smoke-detector bases, CO sensor modules, and door/window contact sensors benefit from the PIC24F04KL101-E/P's combination of XLP low-power and deterministic 16 MIPS wake-up response. The MSSP drives a SPI-connected LoRa or sub-GHz radio, the 10-bit ADC reads a photoelectric smoke chamber, and the CCP module drives a piezo alarm with precision frequency control. With 4KB Flash, the part can host simple encryption/authentication routines for security peripherals. The 20-PDIP package also enables field-replaceable modules in ceiling-mounted smoke detectors where SMT rework is impractical. Designers looking for a smaller SMD variant can use the -E/SO or -E/SS footprints on the same firmware.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24F04KL101-E/P — 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 | PIC24F04KL100-E/P | PIC24F04KL200-E/P | PIC24F08KL101-E/P | PIC24F16KL101-E/P | PIC24FV16KA101-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-PDIP | 20-PDIP (same) | 20-PDIP (same) | 20-PDIP (same) | 20-PDIP (same) | 20-PDIP (same) |
| Core | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS |
| Max CPU 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 | 4 KB | 4 KB | 4 KB | 8 KB | 16 KB | 16 KB |
| RAM | 512 B | 512 B | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Voltage | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 5.5 V |
| Temperature Grade | -40C to +125C (E suffix) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| 10-bit ADC | Yes | No | Yes | Yes | Yes | Yes |
主要差異化特點
- Largest Flash in the KL101 20-PDIP line (對比PIC24F04KL200-E/P)
- Industrial 125C operating range (對比PIC24F04KL101-I/P)
- Wider voltage range drop-in upgrade (對比PIC24FV16KA101-E/P)
設計說明
Place a 0.1uF ceramic decoupling capacitor within 5 mm of each VDD pin (pins 14 and 20) and a single 10uF bulk capacitor on the main supply rail. The PIC24F04KL101-E/P draws spikes of tens of milliamps when the core wakes from deep-sleep; inadequate decoupling can cause VDD droop and spurious brown-out resets. For battery applications, add a 100k + 100nF RC filter on MCLR (pin 1) to suppress false resets during supply transients.
The PIC24F04KL101 is a 3.3V part with an absolute maximum of 3.6V on VDD. Do not power it from a 5V rail, even briefly, or via a resistive divider that can exceed 3.6V under no-load conditions. The ICSP pins (PGECx/PGEDx) are 5V-tolerant on some revisions but not all - check the datasheet revision before connecting a 5V PICkit directly. Use a level translator or a PICkit 4/Snap, both of which are 3.3V-safe by default.
Route the ICSP pair (PGEC1/PGED1 or PGEC2/PGED2) as a matched-length differential pair to the programming header, keeping them away from switching nodes such as the PWM outputs and the MSSP clock. Place a 4.7k pull-up on MCLR to VDD. If the design uses an external crystal on OSC1/OSC2, keep the crystal traces short and surround them with a ground pour to minimize EMI radiation that could disturb the ADC.
合規資訊
RoHS compliance per Microchip product page. Not AEC-Q100 qualified - the -Q automotive variant is the KL101-E/P equivalent for AEC-Q100. Lead-free terminations (JESD-609 e3 per Vyrian datasheet excerpt).
