PIC18LF24J11-I/ML - 16KB Flash 8-bit XLP MCU 28-QFN | Microchip
MPN: PIC18LF24J11-I/ML ✓ فعالPIC18LF24J11-I/ML نمای کلی
What is an 8-bit PIC microcontroller? An MCU (microcontroller unit) is a single-chip computer integrating CPU, program memory (Flash), data memory (RAM), and peripherals. The PIC18 family is Microchip's high-performance 8-bit architecture, with the J-series adding nanoWatt XLP technology for deep-sleep currents under 100 nA. The LF prefix denotes the low-voltage (2.0-3.6 V) variant, while F variants operate 2.0-3.6 V at higher performance levels.
Key features include 16 KB self-programmable Flash, 4 KB SRAM, 256 B EEPROM, two Enhanced USART, two MSSP (I2C/SPI), two comparators, a 10-bit ADC with up to 10 channels, and nanoWatt XLP power-saving modes. The 28-QFN (6x6 mm) package provides a compact surface-mount footprint with an exposed thermal pad.
Typical applications include portable medical devices, low-power sensor nodes, USB peripherals (via external transceiver), industrial control, and battery-powered consumer products. The 48 MHz core at 3.3 V achieves 12 MIPS, fast enough for USB stacks and motor control loops.
Designers should connect the exposed pad to ground for thermal dissipation, place a 0.1 uF decoupling capacitor adjacent to each VDD pin, and use the ICSP interface for programming. The LF variant is preferred for battery applications where 5 V tolerance is not required.
جایگزین‌های drop-in برای PIC18LF24J11-I/ML — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC18LF24J11-I/ML (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Timers, ADC, Maximum CPU Speed, Core Architecture.
PIC18F24J11-I/ML
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18LF24J10-I/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF23K22-I/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF2221-I/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF2331-I/ML
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18LF24J11-I/ML حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | PIC 8-bit (PIC18) |
| Family | PIC18 J-series with XLP nanoWatt |
| Program Memory (Flash) | 16 KB (8K x 16) |
| Data Memory (SRAM) | 4 KB |
| EEPROM | 256 B |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| ADC | 10-bit, 13 channels |
| دمای کاری | -40 C to +85 C (Industrial) |
| بسته‌بندی | 28-pin QFN (6x6 mm) with exposed thermal pad |
| نوع نصب | Surface Mount |
| سطح MSL | 3 (168 hours) |
| وضعیت RoHS | Compliant |
| Number of I/O Pins | 21 |
| Timer Modules | 2x 8-bit, 3x 16-bit |
پیکربندی پین PIC18LF24J11-I/ML
| پین 1 | MCLR/VPP — Master Clear (reset) input or programming voltage |
| پین 2 | RA0 — Digital I/O / analog input AN0 |
| پین 3 | RA1 — Digital I/O / analog input AN1 |
| پین 4 | RA2 — Digital I/O / analog input AN2 |
| پین 5 | RA3 — Digital I/O / analog input AN3 / VREF+ |
| پین 6 | RA4 — Digital I/O / analog input AN4 |
| پین 7 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| پین 8 | VSS — Ground reference |
| پین 9 | OSC1/CLKI/RA7 — Crystal oscillator input or digital I/O |
| پین 10 | OSC2/CLKO/RA6 — Crystal oscillator output or digital I/O |
| پین 11 | RC0 — Digital I/O / SOSCO |
| پین 12 | RC1 — Digital I/O / SOSCI |
| پین 13 | RC2 — Digital I/O |
| پین 14 | RC3 — Digital I/O |
| پین 15 | RC4 — Digital I/O |
| پین 16 | RC5 — Digital I/O |
| پین 17 | RC6 — Digital I/O / TX |
| پین 18 | RC7 — Digital I/O / RX |
| پین 19 | VSS — Ground reference |
| پین 20 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| پین 21 | RB0 — Digital I/O / analog input AN12 |
| پین 22 | RB1 — Digital I/O / analog input AN10 |
| پین 23 | RB2 — Digital I/O / analog input AN8 |
| پین 24 | RB3 — Digital I/O / analog input AN9 |
| پین 25 | RB4 — Digital I/O |
| پین 26 | RB5 — Digital I/O |
| پین 27 | RB6 — Digital I/O / ICSP PGC |
| پین 28 | RB7 — Digital I/O / ICSP PGD |
کاربردهای معمول
PIC18LF24J11-I/ML مناسب است برای 6 کاربردs: Portable Medical Devices, Low-Power IoT Sensor Nodes, USB Peripheral Controllers, Battery-Powered Consumer Electronics, Industrial Control Modules, Home Automation Hubs.
Portable Medical Devices
The PIC18LF24J11-I/ML fits portable medical devices by combining nanoWatt XLP deep-sleep currents below 100 nA with 16 KB Flash and a 10-bit ADC for sensor signal processing. At 2.0-3.6 V, the part runs directly from a single Li-ion or 2x AA cell, eliminating an external regulator and saving PCB space in compact devices such as glucose meters, pulse oximeters, and portable thermometers. The 48 MHz core at 3.3 V achieves 12 MIPS, sufficient for FFT analysis of biosignals, while the 28-QFN (6x6 mm) footprint suits miniaturized enclosures. Pair with the MCP1700 LDO and a low-power op-amp for analog front-end signal conditioning.
پیشنهادی
Low-Power IoT Sensor Nodes
The PIC18LF24J11-I/ML excels in IoT sensor nodes by combining nanoWatt XLP technology (deep-sleep under 100 nA) with 16 KB Flash for protocol stacks like LoRaWAN or Zigbee (via external transceiver). The 10-bit ADC with 13 channels supports multi-sensor sampling (temperature, humidity, motion), and the 48 MHz core handles AES-128 encryption for secure data transmission. With 2.0-3.6 V operation, the part runs from 2x AA cells for multi-year battery life. The 28-QFN (6x6 mm) footprint is suitable for coin-cell sensor tags. The two Enhanced USART modules support simultaneous sensor and radio interfaces.
پیشنهادی
USB Peripheral Controllers
The PIC18LF24J11-I/ML is well-suited for USB peripherals such as HID input devices, USB-to-serial bridges, and USB audio controllers. The 48 MHz core at 3.3 V provides ample throughput for USB 2.0 full-speed (12 Mbps) protocol stacks, while 16 KB Flash accommodates USB descriptors, HID report handlers, and CDC class drivers. The two Enhanced USART modules can serve as serial channel alongside USB. The 28-QFN (6x6 mm) package enables compact dongle form factors. For full-speed USB, add a 48 MHz external crystal on OSC1/OSC2 or use the internal oscillator with USB PLL configuration.
پیشنهادی
Battery-Powered Consumer Electronics
The PIC18LF24J11-I/ML fits battery-powered consumer electronics including remote controls, smart sensors, and wireless key fobs. nanoWatt XLP technology enables multi-year battery life from a single CR2032 coin cell by drawing under 100 nA in deep-sleep wake-on-interrupt modes. The 2.0-3.6 V supply range aligns directly with primary lithium chemistries, removing the need for an external boost converter. The 16 KB Flash supports gesture recognition or wireless protocol stacks, and the 10-bit ADC reads battery voltage for low-battery warnings. The 28-QFN (6x6 mm) package suits ultra-compact consumer housings.
پیشنهادی
Industrial Control Modules
The PIC18LF24J11-I/ML serves industrial control modules including process controllers, sensor transmitters, and HMI panels. The 16 KB Flash holds Modbus RTU or CANopen protocols, while 4 KB SRAM supports buffer management. Two MSSP (I2C/SPI) interfaces connect to sensor ICs and EEPROM, and two Enhanced USARTs handle RS-485/RS-232 communications. The 10-bit ADC with 13 channels supports multi-loop process monitoring. The -40 C to +85 C industrial temperature range qualifies for factory floor environments. The 28-QFN package withstands vibration when the exposed thermal pad is properly soldered to the PCB ground plane.
پیشنهادی
Home Automation Hubs
The PIC18LF24J11-I/ML fits home automation hubs acting as bridges between low-power wireless sensors and Wi-Fi/cloud gateways. Its 48 MHz core runs lightweight protocol stacks such as Zigbee coordinator or BLE peripheral roles, while 16 KB Flash holds application logic. The two Enhanced USARTs can connect to a Wi-Fi module (such as the ESP8266) and a sub-GHz transceiver simultaneously. With 2.0-3.6 V operation, the MCU powers directly from a 3.3 V regulator. The 28-QFN (6x6 mm) footprint enables slim hub enclosures. The deep-sleep wake-on-interrupt supports battery-backed hub operation during outages.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC18LF24J11-I/ML — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC18F24J11-I/ML | PIC18LF24J10-I/ML | PIC18LF23K22-I/ML | PIC18LF2221-I/ML | PIC18LF2331-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6) | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same |
| Flash Memory | 16 KB | 16 KB | 8 KB (-50%) | 8 KB (-50%) | 4 KB (-75%) | 8 KB (-50%) |
| RAM | 4 KB | 4 KB | 2 KB (-50%) | 512 B (-87%) | 512 B (-87%) | 512 B (-87%) |
| Max CPU Speed | 48 MHz | 48 MHz | 40 MHz | 64 MHz | 40 MHz | 40 MHz |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 1.8 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| ADC | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 19 ch | 10-bit, 9 ch | 10-bit, 5 ch |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
تفاوت‌های کلیدی
- nanoWatt XLP deep-sleep under 100 nA (در مقابلPIC18LF24J10-I/ML)
- Higher RAM for buffering applications (در مقابلPIC18LF23K22-I/ML)
- Wider ADC channel count (در مقابلPIC18LF2221-I/ML)
یادداشت‌های طراحی
Place a 0.1 uF decoupling capacitor adjacent to each VDD pin (pins 7 and 20) and a bulk 10 uF tantalum or ceramic capacitor near the supply entry. For battery applications, take advantage of nanoWatt XLP modes: configure unused peripherals off, switch to the internal 31 kHz LFINTOSC during deep-sleep, and use Sleep mode + WatchdogNet wake-up to achieve deep-sleep currents under 100 nA. Note that LF variants disable internal voltage regulation for slightly lower quiescent current; verify that your firmware operates correctly at the lower regulated voltage.
The 28-QFN package has an exposed thermal pad (EP) on its underside that must be soldered to a PCB ground pad for mechanical reliability and thermal dissipation. The recommended PCB footprint is a 5.5x5.5 mm copper pad with 0.3 mm diameter thermal vias in a 3x3 grid connecting to an inner ground plane. Use no-clean solder paste and a reflow profile per JEDEC J-STD-020. Pin 1 indicator is a small dot on the package top surface; align the dot toward the board origin per IPC-7351 land pattern conventions.
Do not confuse the PIC18LF24J11 (low-voltage variant) with the PIC18F24J11 (standard variant); although both share the same 28-QFN footprint, firmware timing loops calibrated for one variant may not work on the other due to slight differences in oscillator calibration constants. Do not exceed 3.6 V on any I/O pin when using the LF variant - the absolute maximum is VDD + 0.3 V. Always connect the MCLR/VPP pin to VDD through a 10 kohm pull-up resistor, or directly to VDD if reset is not needed.
Route the ICSP pins (RB6/PGC and RB7/PGD) to a programming header or test pads with no series resistors or capacitors in-line. Keep the analog traces (RA0-RA4) short and away from switching digital signals to minimize ADC noise coupling. Add a ground guard ring around the analog input traces when high-impedance sensors are connected. Place the crystal or resonator close to OSC1/OSC2 (pins 9 and 10) with a ground plane underneath, and keep these traces short to minimize EMI and jitter.
اطلاعات انطباق
RoHS compliant per Microchip product declaration. Industrial temperature range -40 C to +85 C. Not AEC-Q100 qualified - select automotive-qualified variant for vehicle applications.