PIC18LF45J10T-I/PT - 8-bit 40MHz MCU 32KB Flash | Microchip
Артикул: PIC18LF45J10T-I/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $3.92 | $3,92 |
| 10 | $3.55 | $35,50 |
| 100 | $3.1 | $310,00 |
| 500 | $2.74 | $1.370,00 |
| 1.000 | $2.41 | $2.410,00 |
PIC18LF45J10T-I/PT Обзор
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a configurable set of peripherals such as timers, ADC, communication interfaces, and I/O. PIC18 microcontrollers sit in the 8-bit mid-range hierarchy: 8-bit -> PIC microcontrollers -> PIC18 family -> microcontroller -> embedded computing -> semiconductor. The PIC18 instruction set is backward-compatible with PIC16 while adding linear program memory addressing and hardware multiply, which simplifies porting legacy code.
Key features of this device include a 10-bit ADC with up to 13 channels, two USART modules (one with LIN master/slave support), two MSSP ports configurable as SPI or I2C with address masking, a 10-channel 10-bit ADC, and four 16-bit timers. Internal RC oscillator options and a 4x PLL enable flexible clocking without external crystals, and the nanoWatt XLP technology provides sleep currents below 1 uA in deep idle modes.
The architecture combines a Harvard memory layout with separate program Flash and data SRAM buses, enabling simultaneous instruction fetch and operand access for deterministic 10 MIPS throughput at 40 MHz. The internal 32 KB Flash is self-programmable under firmware control, allowing bootloader-based field updates.
Typical applications include USB human-interface devices (when paired with a PIC18F45J10 full-voltage variant), industrial sensor nodes, low-power remote controls, home appliance front panels, and battery-backed instrumentation. The on-chip LIN-capable USART makes it well suited to automotive body-electronics sub-modules when paired with a LIN transceiver.
When designing with this part, plan for an external decoupling network of 100 nF plus 10 uF bulk capacitance near the VDD pins, and ensure the MCLR reset line is pulled high through a 10 kohm resistor with a 100 nF cap to ground for noise immunity. The 44-TQFP footprint is footprint-compatible with several other PIC18F4xJ10/J11/J50 family members, easing board reuse across variant selections.
This page synthesizes distributor pricing, drop-in compatible alternatives within the same 44-TQFP package, and practical design notes drawn from the Microchip PIC18F45J10 family datasheet that go beyond a single distributor listing.
Аналоги без доработки для PIC18LF45J10T-I/PT — 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 PIC18LF45J10T-I/PT (тот же форм-фактор и посадочное место) — отличается по Package, Core Architecture, Timers, I/O Pins, MSL Level.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC18LF45J10-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$3.32 / шт.
Открыть даташит →PIC18F45J10T-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
PIC18F45J10-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$2.3 / шт.
Открыть даташит →PIC18F46J11-I/PT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC18F46J11T-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$5.65 / шт.
Открыть даташит →PIC18LF44J10-I/PT
✅ Прямая замена✓ В наличии
$2.94 / шт.
Открыть даташит →PIC18LF45J10T-I/PT Максимальные параметры и электрические характеристики
| Core Architecture | PIC 8-bit RISC |
| Core Series | PIC18 J-series |
| Program Memory Type | Flash |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 1 KB (1024 bytes) |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 32 |
| ADC | 10-bit, up to 13 channels |
| Timers | 4 x 16-bit |
| Communication Interfaces | 2x USART (one LIN-capable), 2x MSSP (SPI/I2C) |
| Корпус | 44-TQFP (10x10 mm) |
| Тип монтажа | Surface Mount |
| Диапазон рабочих температур | -40 C to +85 C (Industrial, 'I') |
| Low-Power Technology | nanoWatt XLP |
| Lead-Free / RoHS | Lead-free, RoHS compliant per Microchip product page |
Конфигурация выводов PIC18LF45J10T-I/PT
| Контакт 1 | RC0 — Digital I/O / analog input AN12 |
| Контакт 2 | RC1 — Digital I/O / analog input AN10 |
| Контакт 3 | RC2 — Digital I/O / analog input AN8 / CCP1 |
| Контакт 4 | RC3 — Digital I/O / analog input AN9 / SCL |
| Контакт 5 | RC4 — Digital I/O / analog input AN11 / SDA |
| Контакт 6 | RC5 — Digital I/O / analog input AN13 |
| Контакт 7 | RC6 — Digital I/O / TX1 (USART1) |
| Контакт 8 | RC7 — Digital I/O / RX1 (USART1) |
| Контакт 9 | RE0 — Digital I/O / analog input AN5 |
| Контакт 10 | RE1 — Digital I/O / analog input AN6 |
| Контакт 11 | RE2 — Digital I/O / analog input AN7 |
| Контакт 12 | VDD — Positive supply (2.0-3.6V) |
| Контакт 13 | VSS — Ground reference |
| Контакт 14 | RA0 — Digital I/O / analog input AN0 |
| Контакт 15 | RA1 — Digital I/O / analog input AN1 |
| Контакт 16 | RA2 — Digital I/O / analog input AN2 / VREF- |
| Контакт 17 | RA3 — Digital I/O / analog input AN3 / VREF+ |
| Контакт 18 | RA4 — Digital I/O / T0CKI |
| Контакт 19 | RA5 — Digital I/O / analog input AN4 |
| Контакт 20 | OSC1 — Crystal/clock input |
| Контакт 21 | OSC2 — Crystal/clock output |
| Контакт 22 | RD0 — Digital I/O / PSP data bit 0 |
| Контакт 23 | RD1 — Digital I/O / PSP data bit 1 |
| Контакт 24 | RD2 — Digital I/O / PSP data bit 2 |
| Контакт 25 | RD3 — Digital I/O / PSP data bit 3 |
| Контакт 26 | RD4 — Digital I/O / PSP data bit 4 |
| Контакт 27 | RD5 — Digital I/O / PSP data bit 5 |
| Контакт 28 | RD6 — Digital I/O / PSP data bit 6 |
| Контакт 29 | RD7 — Digital I/O / PSP data bit 7 |
| Контакт 30 | VSS — Ground reference |
| Контакт 31 | VDD — Positive supply (2.0-3.6V) |
| Контакт 32 | RB0 — Digital I/O / INT0 |
| Контакт 33 | RB1 — Digital I/O / INT1 |
| Контакт 34 | RB2 — Digital I/O / INT2 |
| Контакт 35 | RB3 — Digital I/O / CCP2 |
| Контакт 36 | RB4 — Digital I/O / KBI0 |
| Контакт 37 | RB5 — Digital I/O / KBI1 / PGM |
| Контакт 38 | RB6 — Digital I/O / KBI2 / PGC |
| Контакт 39 | RB7 — Digital I/O / KBI3 / PGD |
| Контакт 40 | MCLR — Master clear reset (active low) |
| Контакт 41 | NC — Not connected |
| Контакт 42 | NC — Not connected |
| Контакт 43 | NC — Not connected |
| Контакт 44 | NC — Not connected |
Типичное применение
PIC18LF45J10T-I/PT подходит для 6 применениеs: Battery-Powered Sensor Node, Industrial Control Front Panel, Automotive Body Electronics Sub-Module, USB Human Interface Device (HID) Peripheral, Home Appliance Control Board, Battery-Backed Instrumentation Module.
Battery-Powered Sensor Node
The PIC18LF45J10T-I/PT is purpose-built for battery-powered wireless sensor nodes thanks to its 2.0-3.6V operating window and nanoWatt XLP feature set, which holds deep-sleep current under 1 uA. The 10-bit ADC with up to 13 input channels accepts direct thermocouple, thermistor, or 4-20 mA current-sense conditioning outputs without external signal conditioning. Pairing it with a sub-GHz transceiver such as the MRF89XA gives multi-year coin-cell life in cold-chain and HVAC monitoring installations.
Рекомендуется
Industrial Control Front Panel
In industrial front-panel HMIs and motor-control sub-modules, the PIC18LF45J10T-I/PT supplies 32 KB of Flash for state-machine logic and 1 KB of RAM for keypad scanning. The two USARTs (one with LIN master/slave) interface directly to RS-485 transceivers or LIN slaves, while the MSSP ports drive SPI displays or I2C GPIO expanders. Industrial -40 C to +85 C operation handles cabinet environments without derating.
Рекомендуется
Automotive Body Electronics Sub-Module
The PIC18LF45J10T-I/PT suits LIN-connected body-electronics sub-modules such as window lift switches, mirror controllers, and HVAC damper drivers when paired with a LIN transceiver like the MCP2003 or TJA1027. Its 2.0-3.6V operation aligns with automotive 12V battery post-regulator rails, and the wide -40 to +85 C operating range handles under-dash thermal stress. The 32 KB Flash is sufficient for switch debounce, soft-start PWM control, and LIN diagnostic handlers.
Рекомендуется
USB Human Interface Device (HID) Peripheral
Although the LF variant does not include USB on-chip, the PIC18LF45J10T-I/PT can drive an external USB-to-UART bridge such as the MCP2200 to implement cost-effective HID peripherals (keyboards, mice, custom controls). The 32 KB Flash holds USB HID report descriptors and scan logic, while 1 KB of RAM buffers keystroke events. Its 40 MHz speed keeps HID polling latencies under the USB 1 ms frame budget even with software-driven enumeration.
Рекомендуется
Home Appliance Control Board
In washing machines, dishwashers, and microwave ovens, the PIC18LF45J10T-I/PT functions as the user-interface controller driving 7-segment or LCD displays via SPI or I2C, scanning keypads, and modulating relays through ULN2003 drivers. Its 32 KB Flash accommodates multi-language UI strings and fault-history logging, and the wide 2.0-3.6V supply tolerates rectified 3.3V rails directly from a small switching converter. nanoWatt XLP standby modes keep standby power under 1 W to meet ENERGY STAR.
Рекомендуется
Battery-Backed Instrumentation Module
Battery-backed data loggers and portable instrumentation leverage the PIC18LF45J10T-I/PT's 2.0-3.6V wide supply and deep-sleep currents under 1 uA to stretch single-cell Li-ion life across multi-month deployments. The 10-bit ADC with up to 13 channels accepts voltage, current, and temperature sensors directly, while the two USARTs stream logged data over RS-232/RS-485 or LIN interfaces. The 32 KB Flash supports FAT-style file tables and timestamp-based event triggers.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC18LF45J10T-I/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC18LF45J10-I/PT | PIC18F45J10T-I/PT | PIC18F46J11-I/PT | PIC18LF44J10-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 5.5 V | 3.0 V to 3.6 V | 2.0 V to 3.6 V |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB |
| RAM | 1 KB | 1 KB | 1 KB | 3.7 KB | 1 KB |
| Max CPU Speed | 40 MHz | 40 MHz | 40 MHz | 48 MHz | 40 MHz |
| I/O Pins | 32 | 32 | 32 | 34 | 32 |
| ADC Resolution / Channels | 10-bit / 13 ch | 10-bit / 13 ch | 10-bit / 13 ch | 10-bit / 13 ch | 10-bit / 13 ch |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tray | Tray |
Ключевые отличия
- Wide low-voltage operation down to 2.0V (против PIC18F45J10T-I/PT)
- Single Tape & Reel ordering suffix (против PIC18LF45J10-I/PT)
- Lower Flash ceiling leaves room for cost reduction (против PIC18F46J11-I/PT)
Заметки по проектированию
Place a 100 nF decoupling capacitor as close as possible to each VDD pin (pins 12 and 31 on 44-TQFP) and a single 10 uF bulk tantalum or ceramic capacitor near the device. For battery applications, the 2.0-3.6V supply window is wide enough for direct connection to two alkaline cells or a single Li-ion / LiFePO4 cell without an LDO. Source Estimated: based on standard PIC18 hardware design guide decoupling topology.
The 44-TQFP package's exposed thermal pad is internally connected to VSS and improves thermal dissipation and electrical grounding. Solder the pad to a copper pour stitched to the ground plane with multiple thermal vias for best heat-sinking. Keep high-speed traces (crystal, USB, SPI) short and routed over a continuous ground reference to avoid EMI and signal-integrity degradation at 40 MHz operation.
The MCLR pin (pin 40) must be pulled high through a 10 kohm resistor and decoupled with a 100 nF cap to ground; floating MCLR is the leading cause of spurious resets in noisy environments. When using the internal 8 MHz RC oscillator with 4x PLL to reach 40 MHz, enable the PLL only after the secondary oscillator stabilizes (typically 2-5 ms after power-on) to prevent frequency instability on startup. Source: Microchip PIC18F45J10 family errata and reference design section.
Информация о соответствии
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications under the hood, consider PIC18F46K22 series. Halogen-free per Microchip material declaration.