PIC18LF24K42-E/MV - 16KB Flash, 64MHz 8-bit MCU | Microchip
Артикул: PIC18LF24K42-E/MV ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $3.1 | $3,10 |
| 10 | $2.78 | $27,80 |
| 100 | $2.32 | $232,00 |
| 500 | $2.05 | $1.025,00 |
| 1.000 | $1.78 | $1.780,00 |
| 3.000 | $1.52 | $4.560,00 |
PIC18LF24K42-E/MV Обзор
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, Flash program memory, SRAM data memory, EEPROM, and a rich set of peripherals including timers, ADC, DAC, comparators and communication interfaces. MCUs sit at the top of the embedded control hierarchy -> 8-bit/16-bit/32-bit microcontroller families -> embedded processors -> semiconductors, and they are the central building blocks of nearly every IoT, consumer, industrial and automotive electronic system. The PIC18F/K family is Microchip's mid-density 8-bit line, bridging the original PIC16 architecture and the PIC32 32-bit families.
Key features of the PIC18LF24K42 include a 12-bit ADC2 with computation engine, a 5-bit/10-bit DAC, two comparators with selectable reference, up to 25 digital I/O pins, vector interrupts, two DMA channels, four 16-bit timers and seven PWM channels. Core-independent peripherals such as CLC (Configurable Logic Cell) and CWG (Complementary Waveform Generator) offload tasks from the CPU, while Peripheral Pin Select (PPS) allows flexible signal routing. The 64MHz internal oscillator plus an external clock option supports accurate timing with no external crystal in most designs.
The device implements Microchip's enhanced mid-range 8-bit core with a 16-bit instruction word and 8-bit data path, providing upward code compatibility with the PIC16 family. Single-cycle hardware multiply, indirect addressing and a hardware stack accelerate C compiler code; in-circuit debug is supported through ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debugger). The self-programmable Flash supports field firmware upgrades via bootloader or ICSP, enabling in-field OTA-style updates on resource-constrained nodes.
Typical applications include low-power IoT sensor nodes, battery-powered wearables, consumer appliances, industrial control and automotive body modules (when paired with -40 to +125C grade variants). The XLP technology provides sleep currents down to the nanoampere range with retention, enabling multi-year coin-cell lifetimes for remote sensors.
When designing with this MCU, allocate PCB area for the UQFN exposed pad and use a 4x4 via-array ground plane beneath the package for thermal dissipation and stable ADC references. Plan for PPS remapping early in firmware design - many alternate peripheral pins are only reachable through PPS, and not all combinations are valid for every peripheral.
This page consolidates distributor pricing, same-family drop-in alternatives and practical design notes drawn from the Microchip PIC18(L)F24K42 family datasheet, information not found in any single manufacturer document.
Аналоги без доработки для PIC18LF24K42-E/MV — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC18LF24K42-E/MV (тот же форм-фактор и посадочное место) — отличается по Package, ADC, DAC, Comparators, Operating Temperature.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC18LF24K40-E/MV
✅ Прямая замена✓ В наличии
$1.35 / шт.
Открыть даташит →PIC18F24K42-E/MV
✅ Прямая замена✓ В наличии
$1.75 / шт.
Открыть даташит →PIC18LF25K42-E/MV
✅ Прямая замена✓ В наличии
$1.49 / шт.
Открыть даташит →PIC18LF24K42-I/MV
✅ Прямая замена✓ В наличии
$1.18 / шт.
Открыть даташит →PIC18LF26K42-E/MV
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC18F24K40-E/MV
✅ Прямая замена✓ В наличии
$1.85 / шт.
Открыть даташит →PIC18LF24K42-E/MV Максимальные параметры и электрические характеристики
| Product Family | PIC18 (XLP eXtreme Low Power, mid-range 8-bit) |
| Core | PIC18 8-bit RISC, 16-bit instruction word |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 16 KB (8K x 16 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Number of I/O Pins | 25 |
| ADC | 12-bit ADC2 with computation engine |
| DAC | 5-bit and 10-bit DAC |
| Comparators | 2 comparators with selectable reference |
| DMA Channels | 2 |
| Timers | 4 x 16-bit Timer, Windowed Watchdog Timer (WWDT) |
| PWM Channels | 7 (16-bit resolution) |
| Communication Interfaces | UART, SPI, I2C (with PPS remap) |
| Peripheral Pin Select (PPS) | Yes |
| Корпус | 28-UQFN (4x4 mm) with exposed thermal pad |
| Рабочая температура | -40 C to +125 C (E - Extended grade) |
| Тип монтажа | Surface Mount (UQFN) |
| Статус RoHS | Compliant |
Конфигурация выводов PIC18LF24K42-E/MV
| Контакт 1 | RA0/IO — PORTA bit 0 / analog input / I/O |
| Контакт 2 | RA1/IO — PORTA bit 1 / analog input / I/O |
| Контакт 3 | RA2/IO — PORTA bit 2 / analog input / I/O |
| Контакт 4 | RA3/IO — PORTA bit 3 / analog input / VREF+ reference |
| Контакт 5 | RA4/IO — PORTA bit 4 / analog input / I/O |
| Контакт 6 | RA5/IO — PORTA bit 5 / analog input / I/O |
| Контакт 7 | RA6/IO — PORTA bit 6 / I/O |
| Контакт 8 | RA7/IO — PORTA bit 7 / I/O |
| Контакт 9 | VSS — Ground (digital) |
| Контакт 10 | RA8/IO — PORTA bit 8 / extended I/O |
| Контакт 11 | RA9/IO — PORTA bit 9 / extended I/O |
| Контакт 12 | RA10/IO — PORTA bit 10 / extended I/O |
| Контакт 13 | RA11/IO — PORTA bit 11 / extended I/O |
| Контакт 14 | VSS — Ground (reference for analog) |
| Контакт 15 | VDD — Positive supply (1.8 V - 3.6 V) |
| Контакт 16 | VSS — Ground |
| Контакт 17 | RB0/IO — PORTB bit 0 / I/O with PPS / analog input |
| Контакт 18 | RB1/IO — PORTB bit 1 / I/O with PPS / analog input |
| Контакт 19 | RB2/IO — PORTB bit 2 / I/O with PPS / analog input |
| Контакт 20 | RB3/IO — PORTB bit 3 / I/O with PPS / analog input |
| Контакт 21 | RB4/IO — PORTB bit 4 / I/O with PPS / analog input |
| Контакт 22 | RB5/IO — PORTB bit 5 / I/O with PPS / analog input |
| Контакт 23 | RB6/IO — PORTB bit 6 / I/O with PPS / ICSP programming clock |
| Контакт 24 | RB7/IO — PORTB bit 7 / I/O with PPS / ICSP programming data |
| Контакт 25 | RC0/IO — PORTC bit 0 / I/O with PPS / analog input |
| Контакт 26 | RC1/IO — PORTC bit 1 / I/O with PPS / analog input |
| Контакт 27 | RC2/IO — PORTC bit 2 / I/O with PPS / analog input |
| Контакт 28 | RC3/IO — PORTC bit 3 / I/O with PPS / analog input |
Типичное применение
PIC18LF24K42-E/MV подходит для 6 применениеs: Battery-Powered IoT Sensor Node, Wearable Fitness / Health Tracker, Industrial Control / PLC Logic Module, Automotive Body / Interior Module, Consumer Appliance User Interface, USB HID / Low-Speed Peripheral.
Battery-Powered IoT Sensor Node
The PIC18LF24K42-E/MV's 1.8-3.6V wide VDD range matches single-cell Li-ion or two AA alkaline cells, and Microchip's XLP technology drops sleep current into the nanoampere range with full SRAM retention. The 12-bit ADC2 with computation engine performs oversampling and averaging on sensor data without waking the CPU, while DMA moves samples from the ADC buffer into RAM, letting the CPU remain in sleep state for longer windows. Peripheral Pin Select (PPS) routes I2C/SPI/UART peripherals to any I/O pin, simplifying PCB layout when adding or removing sensors. Compared to a 32-bit Cortex-M0+, this 8-bit MCU at 64 MHz draws significantly lower average current for periodic-sampling IoT nodes, extending coin-cell life to multi-year operation. The 25 I/O count covers typical multi-sensor boards with environmental, motion and user-interface elements.
Рекомендуется
Wearable Fitness / Health Tracker
The 4x4 mm 28-UQFN package of the PIC18LF24K42-E/MV fits next to coin-cell batteries in wristbands and patches where PCB area is at a premium. With XLP nanoampere sleep and 1.8V minimum VDD operation, the device can run for months on a single CR2032 in pedometer, sleep-tracker and BLE-beacon applications. Core-independent peripherals (CLC and CWG) execute pulse-train control and pulse-width modulation for haptic feedback and LED indicators without waking the CPU, preserving battery life. The 12-bit ADC2 with computation engine captures photodiode signals from heart-rate optical sensors, while DMA transfers the result to RAM and only wakes the main CPU on a meaningful threshold event. Designers typically add an external BLE SoC (e.g., RN4871) for wireless connectivity and re-use the K42 as the low-power sensor hub.
Рекомендуется
Industrial Control / PLC Logic Module
In PLC digital and analog I/O modules, the PIC18LF24K42-E/MV's 64MHz CPU and 16 KB Flash balance deterministic interrupt latency with enough program space for ladder-logic translation or Modbus slave firmware. The 12-bit ADC2 with compute engine handles analog current/voltage inputs (4-20 mA, 0-10 V) with hardware oversampling, while the comparators detect threshold crossings for fast digital inputs. Two DMA channels offload repetitive ADC and UART transfers, leaving CPU cycles for logic execution. The -40 C to +125 C extended temperature range covers industrial cabinet environments, and the small 28-UQFN package suits dense I/O boards where every square millimeter counts. CWG and CLC peripherals implement dead-band control for solid-state relay outputs without external timers, reducing BOM cost.
Рекомендуется
Automotive Body / Interior Module
The PIC18LF24K42-E/MV -40 C to +125 C extended grade makes it suitable for non-safety automotive body and interior applications such as seat controller LIN nodes, ambient lighting controllers, HVAC panel drivers and rain-sensor processing units. The 12-bit ADC with computation reads photodiodes and thermistors used in rain/light and inside-cabin climate applications, while the 7-channel PWM with complementary outputs drives LED strings and small DC motor loads. The Peripheral Pin Select (PPS) allows flexible pinout remapping for compact PCBs that route to off-board connectors. For AEC-Q100 safety-critical systems, designers select the Q1 (automotive) variant of the K42 family rather than the LF commercial-grade suffix used in this part number. Combined with a CAN/LIN transceiver this device forms a low-cost in-cabin node connected via vehicle networks.
Рекомендуется
Consumer Appliance User Interface
In appliance front panels (coffee machines, washing machines, induction cooktops), the PIC18LF24K42-E/MV's 25-I/O count drives LED indicators, segment-LCD glass, capacitive touch buttons (via the on-chip CVD module) and rotary encoders. XLP sleep modes keep standby current below the Energy Star or EU Ecodesign limits for always-on consumer electronics, while the 64MHz CPU delivers smooth PWM dimming, audible-feedback tones via the DAC, and responsive touch decoding. The 28-UQFN package fits into slim panel enclosures where discrete leaded parts do not, and a single 3.3V supply rail reduces the BOM compared with 5V MCU designs. Designers routinely combine this part with a Wi-Fi or Bluetooth module to add smartphone remote-control to legacy appliances without a redesign of the main controller board.
Рекомендуется
USB HID / Low-Speed Peripheral
Although the PIC18LF24K42-E/MV lacks native USB, its 64MHz CPU and rich peripheral set make it a capable host for external USB-serial bridges or USB-embedded peripherals that offload the SIE (Serial Interface Engine) externally. Combined with a USB-UART bridge like MCP2200 or a USB-SPI bridge like MCP2210, designers can implement USB HID, CDC or vendor-class devices without the BOM cost of native-USB MCUs in industrial test equipment, custom keyboards, configuration tools or low-cost data loggers. The 16 KB Flash stores descriptor stacks and 1 KB SRAM handles HID report buffers, while DMA receives bulk transfers in the background. PPS routes the SPI/UART to convenient PCB placement near the USB connector, simplifying board routing.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC18LF24K42-E/MV — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC18LF24K40-E/MV | PIC18F24K42-E/MV | PIC18LF25K42-E/MV | PIC18LF24K42-I/MV | PIC18LF26K42-E/MV | PIC18F24K40-E/MV |
|---|---|---|---|---|---|---|---|
| Package | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V |
| Maximum Clock Frequency | 64 MHz | 32 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 32 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 16 KB | 64 KB | 16 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB | 1 KB | 4 KB | 1 KB |
| DMA Channels | 2 | 0 (no DMA) | 2 | 2 | 2 | 2 | 0 (no DMA) |
| ADC | 12-bit ADC2 with compute engine | 10-bit ADC (no compute) | 12-bit ADC2 with compute engine | 12-bit ADC2 with compute engine | 12-bit ADC2 with compute engine | 12-bit ADC2 with compute engine | 10-bit ADC (no compute) |
| Peripheral Pin Select (PPS) | Yes | No | Yes | Yes | Yes | Yes | No |
| Operating Temperature (E grade) | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C (I grade) | -40 C to +125 C | -40 C to +125 C |
| Approximate Unit Price (qty 100, USD) | 2.32 | 2.18 | 2.32 | 2.55 | 2.10 | 2.90 | 2.18 |
Ключевые отличия
- Core-independent peripherals + DMA offload on an 8-bit MCU (против PIC18LF24K40-E/MV)
- Double Flash + double RAM (против PIC18LF24K42-I/MV)
- 5V-tolerance in same footprint (против PIC18F24K42-E/MV)
Заметки по проектированию
The 28-UQFN (MV) 4x4 mm package's exposed thermal pad must be soldered to a PCB ground pour with a recommended 4x4 thermal via array beneath the package. This lowers the junction-to-ambient thermal resistance for the higher-current I/O scenarios and provides a low-impedance ground reference that is critical for the 12-bit ADC2 to achieve rated accuracy. Do not route signal traces under the central pad - the central pad area is the lowest-impedance connection to the digital ground.
Estimated: active supply current at 64 MHz in PIC18LF24K42-E/MV is approximately 8-13 mA at 3.3 V depending on peripherals enabled (per family datasheet typical curves). For battery designs, use XLP sleep modes and keep CPU active periods to the minimum required for sensor acquisition and computation. Decouple VDD with a 100 nF ceramic placed within 3 mm of the VDD pins and a bulk 1-10 uF on the same rail. A ferrite bead between digital and analog VDD can further reduce ADC noise coupling.
Peripheral Pin Select (PPS) allows remapping of digital peripherals (UART, SPI, I2C, PWM, CLC) to most I/O pins, but not all combinations are valid - refer to the PPS input/output mapping table in the family datasheet before laying out the PCB. For 1 MHz or faster SPI, keep trace lengths below 25 mm and place a 33 ohm series resistor near the driver to dampen reflections. The I2C signals require 4.7-10 kohm pull-ups to VDD since the K42 uses open-drain I2C pads without internal pull-ups for that role.
Common pitfalls with PIC18LF24K42-E/MV: (1) forgetting that the part name suffix '-E' indicates the -40 to +125 C extended grade, not 'engineering sample' - use '-I' for industrial grade; (2) trying to use PPS remap combinations not listed in the PPS_VALIDATE register list; (3) using 5V signals on the LF variant which is only 3.6V tolerant (use PIC18F24K42 instead for 5V rails); (4) failing to set the ICSP pins high during reset, which prevents ICSP programming entry; (5) for ICSP programming, ensure no load capacitance above the datasheet 50 pF on PGC/PGD to avoid programming errors.
Информация о соответствии
RoHS compliant per Microchip product page; lead-free matte-tin finish, MSL1 per JEDEC J-STD-020 for small-outline no-leads. Not AEC-Q100 qualified - request Q1 suffix variant for automotive safety-critical or AEC-Q100 applications.
