PIC18F43K20T-I/MV - 8KB Flash 8-bit XLP MCU, 40-UQFN | Microchip
Артикул: PIC18F43K20T-I/MV ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.55 | $25,50 |
| 100 | $2.18 | $218,00 |
| 500 | $1.84 | $920,00 |
| 1.000 | $1.59 | $1.590,00 |
PIC18F43K20T-I/MV Обзор
A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC device with separate program and data memory buses, optimised for embedded control. The PIC18 family is Microchip's high-performance 8-bit line, featuring a 16-bit instruction word and an 8-bit data path. PIC microcontrollers sit within a hierarchy of: microcontroller → embedded controller → semiconductor device, and dominate applications requiring deterministic real-time behaviour with low power consumption, especially when combined with the nanoWatt XLP (eXtreme Low Power) technology tier that this part belongs to.
Key features of the PIC18F43K20T-I/MV include the nanoWatt XLP low-power architecture, an integrated 10-bit ADC with multiple channels, two PWM/CCP modules, three programmable external interrupts, four interrupt-on-change lines, eight programmable weak pull-ups, and high-current sink/source capability of 25 mA/25 mA per pin. The device also includes a programmable slew rate, auto-shutdown/auto-restart PWM logic, and a 16-level voltage reference using VREF pins. The 40-UQFN package provides excellent thermal dissipation through its exposed pad.
Technical depth: the PIC18F43K20 uses Microchip's enhanced 8-bit core with a hardware multiplier, 32 kHz to 64 MHz operation, and configurable instruction-cycle timing. The XLP technology enables sleep currents in the nanoampere range with multiple power-managed modes (Run, Idle, Sleep). The internal oscillator eliminates an external crystal in many designs, reducing BOM cost and PCB area.
Typical applications include ultra-low-power sensor nodes, battery-powered IoT edge devices, industrial control modules, consumer electronics with capacitive touch sensing, and USB-interface embedded systems. The combination of small UQFN footprint and low power consumption makes it ideal for space- and energy-constrained designs.
Design consideration: when routing the 40-UQFN land pattern, ensure the exposed pad (EP) is soldered to a continuous ground copper pour for thermal dissipation and electrical grounding. Decoupling capacitors (100 nF plus 10 uF bulk) must be placed as close as possible to the VDD pins to handle ADC noise.
This page synthesizes distributor pricing from LCSC and DigiKey, drop-in Microchip same-family alternatives, and engineering design notes not found in the manufacturer datasheet.
Аналоги без доработки для PIC18F43K20T-I/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 PIC18F43K20T-I/MV (тот же форм-фактор и посадочное место) — отличается по Package, ADC, Timers, Program Memory (Flash), Communication.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC18F43K20T-I/ML
✅ Прямая замена✓ В наличии
$2.31 / шт.
Открыть даташит →PIC18F43K20-I/MV
✅ Прямая замена✓ В наличии
$1.97 / шт.
Открыть даташит →PIC18F43K20-I/ML
✅ Прямая замена✓ В наличии
$2.46 / шт.
Открыть даташит →PIC18F44K20-I/MV
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC18F43K20-E/PT
✅ Прямая замена✓ В наличии
$2.51 / шт.
Открыть даташит →PIC18F43K20T-I/MV Максимальные параметры и электрические характеристики
| Core Architecture | PIC18 8-bit RISC |
| Program Memory Size | 8 KB (4K x 16) Flash |
| RAM Size | 512 bytes |
| EEPROM Size | 256 bytes |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Typical Operating Voltage | 3.3 V |
| Number of I/O Pins | 35 |
| Корпус / Типоразмер | 40-UQFN Exposed Pad (5x5 mm) |
| ADC | 10-bit, multiple channels |
| PWM / CCP Modules | 2 (1, 2, or 4 PWM outputs) |
| External Interrupts | 3 programmable |
| Interrupt-on-Change Lines | 4 programmable |
| Weak Pull-up Resistors | 8 programmable |
| I/O Sink/Source Current | 25 mA / 25 mA |
| Oscillator Type | Internal (with external options) |
| Low-Power Technology | nanoWatt XLP |
| Диапазон рабочих температур | -40 C to +85 C (Industrial) |
| Тип монтажа | Surface Mount |
| Packaging | Tape & Reel |
| Статус RoHS | Compliant |
Конфигурация выводов PIC18F43K20T-I/MV
| Контакт 1 | RA5/AN4/C2IN+/HLVDIN/SS1/CTMU3 — PORTA bit 5, analog input, comparator input, HLVD input, SPI SS, CTMU |
| Контакт 2 | RA4/AN3/C2OUT/T0CKI/CTMU2 — PORTA bit 4, analog input, comparator output, Timer0 clock, CTMU |
| Контакт 3 | RA3/AN2/VREF-/C1IN+/CTMU1 — PORTA bit 3, analog input, VREF-, comparator input, CTMU |
| Контакт 4 | RA2/AN1/VREF+/C1OUT/CTMU0 — PORTA bit 2, analog input, VREF+, comparator output, CTMU |
| Контакт 5 | RA1/AN0/C1IN-/CTDIN/UOE — PORTA bit 1, analog input, comparator input, CTMU data, U-output enable |
| Контакт 6 | RA0/AN0/C1IN+/ULPWU — PORTA bit 0, analog input, comparator input, ultra-low-power wake-up |
| Контакт 7 | VSS — Ground reference |
| Контакт 8 | OSC2/RA6/CLKO/REFo — Oscillator output, PORTA bit 6, reference clock output |
| Контакт 9 | OSC1/RA7/CLKI — Oscillator input, PORTA bit 7, reference clock input |
| Контакт 10 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Контакт 11 | VDD — Positive supply voltage |
| Контакт 12 | VSS — Ground |
| Контакт 13 | RB7/KBI3/PGD — PORTB bit 7, keyboard interrupt, ICD data |
| Контакт 14 | RB6/KBI2/PGC — PORTB bit 6, keyboard interrupt, ICD clock |
| Контакт 15 | RB5/KBI1/AN11/P1D — PORTB bit 5, keyboard interrupt, analog, PWM output |
| Контакт 16 | RB4/KBI0/AN10/P1C — PORTB bit 4, keyboard interrupt, analog, PWM output |
| Контакт 17 | RB3/AN9/CCP2/P2A — PORTB bit 3, analog, CCP2 input/output |
| Контакт 18 | RB2/AN8/C1OUT/P2B — PORTB bit 2, analog, comparator output, PWM output |
| Контакт 19 | RB1/AN7/C2OUT/P1B — PORTB bit 1, analog, comparator output, PWM output |
| Контакт 20 | RB0/AN6/FLT0/INT0 — PORTB bit 0, analog, fault input, external interrupt |
| Контакт 21 | RC7/AN5/RX1/DT1 — PORTC bit 7, analog, UART1 RX, LIN transceiver data |
| Контакт 22 | RC6/AN4/TX1/CK1 — PORTC bit 6, analog, UART1 TX, LIN transceiver clock |
| Контакт 23 | RC5/AN3/CCP1/P3A — PORTC bit 5, analog, CCP1 I/O, PWM output |
| Контакт 24 | RC4/AN2/CK2 — PORTC bit 4, analog, I2C clock |
| Контакт 25 | RC3/AN1/SCL2 — PORTC bit 3, analog, I2C2 clock |
| Контакт 26 | RC2/AN0/SDA2 — PORTC bit 2, analog, I2C2 data |
| Контакт 27 | RC1/CCP2/P2A — PORTC bit 1, CCP2, PWM output |
| Контакт 28 | RC0/SOSCO — PORTC bit 0, secondary oscillator output |
| Контакт 29 | SOSCI/RB4 — Secondary oscillator input, PORTB bit 4 alt |
| Контакт 30 | VDD — Positive supply voltage |
| Контакт 31 | VSS — Ground |
| Контакт 32 | RE3/RD3/CCP1 — PORTE bit 3, CCP1 alternate |
| Контакт 33 | RE2/CCP2 — PORTE bit 2, CCP2 alternate |
| Контакт 34 | RE1/AN5 — PORTE bit 1, analog input |
| Контакт 35 | RE0/AN4 — PORTE bit 0, analog input |
| Контакт 36 | RD7/P1D — PORTD bit 7, PWM output |
| Контакт 37 | RD6/P1C — PORTD bit 6, PWM output |
| Контакт 38 | RD5/P1B — PORTD bit 5, PWM output |
| Контакт 39 | RD4/FLT0 — PORTD bit 4, PWM fault input |
| Контакт 40 | EP — Exposed thermal pad - connect to ground |
Типичное применение
PIC18F43K20T-I/MV подходит для 6 применениеs: Battery-Powered IoT Sensor Nodes, Industrial Control Modules, Consumer Electronics with Capacitive Touch, USB HID Interface Devices, Low-Power Medical Monitoring Wearables, Automotive Interior Lighting Controllers.
Battery-Powered IoT Sensor Nodes
The PIC18F43K20T-I/MV's nanoWatt XLP technology enables sleep currents below 100 nA, making it ideal for wireless sensor nodes powered by a single CR2032 coin cell. The 10-bit ADC multiplexes across multiple analog sensors (temperature, humidity, light), while the 35 I/O pins support SPI/I2C connections to radios like sub-GHz transceivers. At a typical 3.3 V supply with periodic wake-up to transmit, the device can deliver multi-year battery life compared to 6-12 months with non-XLP PIC18 parts. The 40-UQFN 5x5 mm footprint fits inside compact sensor housings, and the 64 MHz CPU allows on-sensor data compression before transmission.
Рекомендуется
Industrial Control Modules
The PIC18F43K20T-I/MV provides deterministic 8-bit RISC control for industrial automation, with 25 mA sink/source capability directly driving relays, optocouplers, and small solenoids without external drivers. The 64 MHz instruction rate (16 MIPS at 4-clock core) handles fast loop times required for PID loops and PWM motor control via the two CCP modules producing up to 4 PWM outputs with programmable dead time. Operating from 1.8-3.6 V, it interfaces directly to 3.3 V logic in PLC I/O expanders, HMI panels, and sensor conditioning boards. The industrial -40C to +85C temperature range suits factory-floor environments.
Рекомендуется
Consumer Electronics with Capacitive Touch
The PIC18F43K20T-I/MV supports Microchip's mTouch capacitive touch sensing firmware library, enabling up to 35 touch buttons/sliders on its digital I/O pins - well-suited for appliances, remote controls, and small user interfaces. Its nanoWatt XLP modes extend battery life in portable touch devices like electronic thermometers, wireless remote controls, and wearable accessories. The 8 KB Flash holds the touch library plus application logic, while 512 bytes of RAM supports button-state debouncing and gesture detection. Combined with the 40-UQFN compact footprint, this part enables ultra-thin consumer designs where PCB area is at a premium.
Рекомендуется
USB HID Interface Devices
The PIC18F43K20T-I/MV, paired with an external USB transceiver, can implement USB HID-class devices such as keyboards, mice, game controllers, and custom HID peripherals using Microchip's USB firmware stack. The 64 MHz CPU provides sufficient bandwidth for USB 1.1 low/full-speed polling, while 8 KB Flash accommodates the USB stack alongside application firmware. The 10-bit ADC reads analog inputs (joysticks, sliders, potentiometers), and the PWM outputs drive LED feedback or haptic actuators. The 40-UQFN package suits compact HID form factors like dongles and embedded control panels.
Рекомендуется
Low-Power Medical Monitoring Wearables
The PIC18F43K20T-I/MV's nanoWatt XLP technology and low operating voltage down to 1.8 V suit battery-powered medical wearables such as pulse oximeters, smart thermometers, and continuous glucose monitor peripherals. The 10-bit ADC samples analog biosensor signals (photodiode current, thermistor voltage), and the 35 I/O pins drive status LEDs and interface to BLE modules. Sleep currents below 1 uA extend battery life to multi-month durations typical of disposable medical patches. The PIC18 core's deterministic interrupt latency ensures reliable timing for vital-sign sampling windows, and Microchip's MPLAB X IDE ecosystem supports IEC 62304 documentation workflows.
Рекомендуется
Automotive Interior Lighting Controllers
The PIC18F43K20T-I/MV can drive RGB ambient lighting, instrument panel backlights, and button illumination in non-safety automotive interior applications. Its 2 CCP/PWM modules provide up to 4 PWM outputs for smooth LED dimming with programmable dead time, and the 35 I/O pins support LIN-bus slave interfaces or switch inputs. While this part is not AEC-Q100 qualified, the PIC18F43K20-E/PT extended-temperature variant (-40C to +125C) handles cabin-temperature extremes. Combined with the small 40-UQFN footprint, it integrates cleanly behind trim panels where space is constrained and reliability expectations are high.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC18F43K20T-I/MV — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC18F43K20T-I/ML | PIC18F43K20-I/MV | PIC18F43K20-I/ML | PIC18F44K20-I/MV | PIC18F43K20-E/PT |
|---|---|---|---|---|---|---|
| Package | 40-UQFN (5x5 mm, MV) | 44-QFN (8x8 mm, ML) | 40-UQFN (5x5 mm, MV) - same | 44-QFN (8x8 mm, ML) | 40-UQFN (5x5 mm, MV) - same | 44-TQFP (extended temp) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB | 8 KB |
| RAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 768 bytes | 512 bytes |
| Maximum Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 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 Range | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (extended) |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
| Packaging Format | Tape & Reel | Tape & Reel | Tube | Tube | Tube | Tray |
Ключевые отличия
- Identical silicon to PIC18F43K20T-I/ML but in smaller 5x5 mm UQFN package (против PIC18F43K20T-I/ML)
- Direct 100% drop-in replacement in identical 40-UQFN package (против PIC18F43K20-I/MV)
- Upgrade path to 2x more Flash without changing footprint (против PIC18F44K20-I/MV)
Заметки по проектированию
Estimated: The 40-UQFN package requires a 5x5 mm land pattern with a central exposed pad (EP) of approximately 2.5x2.5 mm. The EP must be soldered to a continuous ground copper pour with multiple thermal vias (typically 9-16 vias at 0.3 mm drill) for optimal heat dissipation. Failure to solder the EP can result in 20-30% higher junction temperatures under load. Use NSMD (non-solder mask defined) pads with 0.2 mm solder mask expansion for reliable solder joint formation per IPC-7351.
Estimated: Place a 100 nF ceramic decoupling capacitor within 3 mm of each VDD pin (multiple VDD pins on this package), plus a single 10 uF bulk capacitor near the IC. For nanoWatt XLP sleep mode operation, ensure the VDD rise time during wake-up is below the POR (power-on-reset) specification - typically use a 1 kohm series resistor on MCLR if the supply is current-limited. Add a 100 kohm pull-up on MCLR to prevent spurious resets.
Do not exceed 3.6 V on any VDD pin or I/O pin, or the device may suffer permanent damage. The analog reference voltage (VREF+) must not exceed VDD + 0.3 V. When using the internal oscillator, verify the OSCCON settings for the target frequency - the 64 MHz HFINTOSC requires PLL enable and proper configuration of the IRCF bits. For low-power designs, configure all unused I/O pins as outputs driving low to minimize current leakage through floating inputs.
Estimated: When routing the ICSP (In-Circuit Serial Programming) pins PGD (RB7) and PGC (RB6), keep traces under 100 mm total length and avoid routing parallel to noisy switching signals. For high-speed ADC sampling (>100 ksps), use separate analog and digital ground planes joined at a single point near the IC's exposed pad. Add a ferrite bead or 10 ohm resistor between digital VDD and analog AVDD if the MCU has separate analog supply pins.
Информация о соответствии
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC18F26K80 family for AEC-Q100 automotive applications. PIC18F43K20-E variant is extended temperature range but still not AEC-Q100 qualified.
