PIC18LF56K42-E/PT - 8-bit 64KB Flash MCU, 48-Pin TQFP | Microchip
部品番号: PIC18LF56K42-E/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.15 | $3.15 |
| 10 | $2.92 | $29.20 |
| 100 | $2.61 | $261.00 |
| 250 | $2.39 | $597.50 |
| 1,000 | $2.15 | $2,150.00 |
PIC18LF56K42-E/PT 概要
An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions fetched from on-chip program memory and provides built-in peripherals for digital I/O, analog signal conversion, and serial communication. The 8-bit PIC RISC architecture sits within the broader microcontroller taxonomy: MCU -> embedded controller -> semiconductor device. 8-bit MCUs remain dominant in cost-sensitive, low-power applications where deterministic interrupt response and long product lifecycle outweigh raw computational throughput.
Key features of the PIC18LF56K42 include the eXtreme Low Power (XLP) sleep current of <100 nA typical, ideal for battery-backed IoT endpoints. The device supports 1.8V to 3.6V operation (the "LF" prefix) and includes Microchip's MPLAB X IDE ecosystem with XC8 compiler support. Operating temperature range is -40C to +125C (the "E" suffix), suiting industrial environments.
Architecturally, the K42 family implements a Harvard architecture with 16-bit instructions and separate 16-level hardware stack, hardware multiplier, and C-optimized instruction set. The integrated DMA engine offloads repetitive data transfers between peripherals and RAM, freeing the core for application logic - a meaningful upgrade over PIC18F46K22 predecessors that lacked DMA.
Typical applications include industrial sensor nodes with analog signal conditioning, low-power IoT battery nodes, USB-CDC/HID peripherals with EUSART bridges, LED lighting controllers using the high-resolution PWM, and motor control (BLDC/PMSM) using the CWG and fast ADC sampling. Designers transitioning from PIC18F46K22 or PIC18F46K80 designs gain DMA, CRC, and modern peripherals without pin-out changes when migrating within the 48-pin TQFP family.
Design consideration: ensure MPLAB X IDE 5.50+ with MPLAB Code Configurator (MCC) Melody or Classic is used to generate device configuration; the PPS mapping must be assigned before peripheral use to avoid pin collisions on the 48-pin TQFP-EP footprint.
This page synthesizes distributor pricing, drop-in same-package alternatives within the PIC18 K42 family, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: PIC18LF56K42-E/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC18LF56K42-E/PT （同一形状・フットプリント） — 相違点: ADC, Core Architecture, Package, Program Memory (Flash), Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
PIC18F56K42-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC18LF57K42-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC18LF55K42-E/PT
✅ ドロップイン✓ 在庫あり
$2.1 / 個
データシートを見る →PIC18F57K42-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.72 / 個
データシートを見る →PIC18F56K42-E/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.08 / 個
データシートを見る →PIC18LF56K42-E/PT 最大定格＆電気的特性
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| Data SRAM | 4 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 64 MHz |
| Supply Voltage (LF series) | 1.8 V to 3.6 V |
| 動作温度範囲 | -40 C to +125 C (E suffix = industrial) |
| パッケージ | 48-pin TQFP-EP (7x7 mm) |
| 実装タイプ | Surface Mount (Gull Wing) |
| ADC | 12-bit ADC2 with Computation, up to 35 channels |
| DAC | 5-bit DAC |
| Comparators | Yes |
| PWM Channels | Multiple 16-bit PWM with CWG |
| DMA Channels | Yes (Direct Memory Access) |
| Communication Interfaces | 2x EUSART, SPI, I2C |
| XLP Sleep Current | <100 nA typical |
| Peripheral Pin Select (PPS) | Yes |
| RoHS ステータス | Compliant |
PIC18LF56K42-E/PT ピン構成
| ピン 1 | RA0 — PORTA bit 0 / analog / IOC |
| ピン 2 | RA1 — PORTA bit 1 / analog / IOC |
| ピン 3 | RA2 — PORTA bit 2 / analog / IOC |
| ピン 4 | RA3 — PORTA bit 3 / analog / IOC |
| ピン 5 | RA4 — PORTA bit 4 / analog / IOC |
| ピン 6 | RA5 — PORTA bit 5 / analog / IOC |
| ピン 7 | RA6 — PORTA bit 6 / analog / IOC |
| ピン 8 | RA7 — PORTA bit 7 / analog / IOC |
| ピン 9 | VSS — Ground reference |
| ピン 10 | VDD — Positive supply (1.8-3.6V) |
| ピン 11 | RB0 — PORTB bit 0 / IOC / interrupt-on-change |
| ピン 12 | RB1 — PORTB bit 1 / IOC |
| ピン 13 | RB2 — PORTB bit 2 / IOC |
| ピン 14 | RB3 — PORTB bit 3 / IOC |
| ピン 15 | RB4 — PORTB bit 4 / IOC |
| ピン 16 | RB5 — PORTB bit 5 / IOC |
| ピン 17 | RB6 — PORTB bit 6 / ICSCLK / IOC |
| ピン 18 | RB7 — PORTB bit 7 / ICSDAT / IOC |
| ピン 19 | VSS — Ground |
| ピン 20 | VDD — Positive supply |
| ピン 21 | RC0 — PORTC bit 0 / analog |
| ピン 22 | RC1 — PORTC bit 1 / analog |
| ピン 23 | RC2 — PORTC bit 2 / analog |
| ピン 24 | RC3 — PORTC bit 3 / analog / SCL |
| ピン 25 | RC4 — PORTC bit 4 / analog / SDA |
| ピン 26 | RC5 — PORTC bit 5 / analog |
| ピン 27 | RC6 — PORTC bit 6 / TX |
| ピン 28 | RC7 — PORTC bit 7 / RX |
| ピン 29 | RE0 — PORTE bit 0 / analog |
| ピン 30 | RE1 — PORTE bit 1 / analog |
| ピン 31 | RE2 — PORTE bit 2 / analog |
| ピン 32 | RE3 — PORTE bit 3 / analog |
| ピン 33 | RD0 — PORTD bit 0 / enhanced PWM |
| ピン 34 | RD1 — PORTD bit 1 / enhanced PWM |
| ピン 35 | RD2 — PORTD bit 2 / enhanced PWM |
| ピン 36 | RD3 — PORTD bit 3 / enhanced PWM |
| ピン 37 | RD4 — PORTD bit 4 / enhanced PWM |
| ピン 38 | RD5 — PORTD bit 5 / enhanced PWM |
| ピン 39 | RD6 — PORTD bit 6 / enhanced PWM |
| ピン 40 | RD7 — PORTD bit 7 / enhanced PWM |
| ピン 41 | RF0 — PORTF bit 0 / analog |
| ピン 42 | RF1 — PORTF bit 1 / analog |
| ピン 43 | RF2 — PORTF bit 2 / analog |
| ピン 44 | RF3 — PORTF bit 3 / analog |
| ピン 45 | RF4 — PORTF bit 4 / analog |
| ピン 46 | RF5 — PORTF bit 5 / analog |
| ピン 47 | RF6 — PORTF bit 6 / analog |
| ピン 48 | RF7 — PORTF bit 7 / analog |
| ピン 49 | EP — Exposed thermal pad (connect to VSS) |
主な用途
PIC18LF56K42-E/PT の用途: 6 件s: Industrial Sensor Node, Battery-Powered IoT Endpoint, BLDC / PMSM Motor Controller, LED Lighting Controller with DMX, USB-HID to UART Bridge, Touch-Sense User Interface.
Industrial Sensor Node
The PIC18LF56K42-E/PT fits industrial sensor nodes because it combines a 12-bit ADC2 with Computation (automated oversampling and threshold detection), integrated DMA that offloads ADC-to-RAM transfers, and XLP sleep current below 100 nA. In a 4-20 mA loop-powered pressure or temperature transmitter, the MCU can wake on an ADC threshold interrupt, perform signal conditioning, and return to sub-microamp sleep. Operating on 1.8-3.6V and tolerating -40C to +125C, it handles harsh factory environments while the 48-pin TQFP-EP package offers the I/O count needed for multi-sensor interfaces including SPI, I2C, and EUSART to gateway radios.
おすすめ
Battery-Powered IoT Endpoint
The PIC18LF56K42-E/PT is a strong fit for battery-powered IoT endpoints due to its XLP technology with sub-100 nA sleep current, 1.8-3.6V operating range, and integrated peripheral pin select that simplifies PCB routing. For a coin-cell-powered smart sensor or BLE beacon, the MCU spends 99.9% of its time in sleep with RTCC wake, then bursts through ADC sampling and EUSART/SPI transmission to a companion radio. The DMA engine handles data movement without waking the CPU core, and the integrated CRC module verifies packet integrity before transmission - critical for energy-budgeted, multi-year deployments on a single CR2032 or AA pack.
おすすめ
BLDC / PMSM Motor Controller
The PIC18LF56K42-E/PT suits BLDC and PMSM motor control because the K42 family integrates the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG) for hardware dead-band control, and multiple high-resolution PWM channels. The 12-bit ADC2 with Computation samples back-EMF and phase currents at high rates while DMA moves conversion results to RAM without CPU intervention, freeing MIPS for the FOC control loop. Running at 64 MHz, the 16 MIPS throughput easily handles sensorless FOC for small pumps, fans, and e-bike hub motors, and the 48-pin TQFP-EP provides the GPIO count to drive a three-phase inverter via gate drivers.
おすすめ
LED Lighting Controller with DMX
The PIC18LF56K42-E/PT is ideal for architectural and stage LED lighting controllers because it provides up to 35 PWM-capable I/O, a high-resolution PWM/CWG module supporting >1 MHz PWM frequency for flicker-free dimming, and dual EUSART interfaces for DMX-512 / RDM protocol bridging. The DMA engine ensures deterministic 250 kbaud DMX reception without jitter even while the CPU manages PWM updates and color-mixing algorithms. The integrated 5-bit DAC can drive an external constant-current reference, and the 48-pin TQFP-EP handles four or more independent PWM channels for RGBW fixtures plus a serial UART for DMX daisy-chaining.
おすすめ
USB-HID to UART Bridge
The PIC18LF56K42-E/PT can serve as a USB-HID to UART bridge using its dual EUSART and a companion USB-to-UART IC, with the MCU acting as the protocol converter and configuration manager. The integrated DMA handles continuous UART-to-buffer transfers at high baud rates without CPU load, while the CLC module can implement custom bit-banging protocols. The 64 KB Flash accommodates CDC/HID stacks plus a configuration web server in firmware, and the wide 1.8-3.6V supply tolerance allows direct 3.3V operation from a USB-powered rail without an additional LDO. Designers using Microchip's USB stack should note the K42 family does not include native USB; pair with MCP2200 or MCP2221A USB-UART bridges.
おすすめ
Touch-Sense User Interface
The PIC18LF56K42-E/PT suits capacitive touch user interfaces because the integrated CLC and zero-cross detect (ZCD) modules, combined with the 12-bit ADC2 with Computation, can implement mTouch capacitive sensing without an external touch controller. The DMA scans multiple touch channels sequentially, accumulating charge measurements for averaging and baseline tracking, while the CPU stays free for HMI logic. The 48-pin TQFP-EP provides enough GPIO for 12-16 touch pads plus LED feedback indicators, and the 64 KB Flash stores sophisticated gesture recognition firmware. Operating from 1.8-3.6V, it powers directly from a single Li-Ion cell or 3.3V regulated rail.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC18LF56K42-E/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC18F56K42-I/PT | PIC18LF57K42-I/PT | PIC18LF55K42-E/PT | PIC18F57K42-I/PT | PIC18F56K42-E/PT |
|---|---|---|---|---|---|---|
| Package | 48-pin TQFP-EP (7x7 mm) | 48-pin TQFP-EP (7x7 mm) - same | 48-pin TQFP-EP (7x7 mm) - same | 48-pin TQFP-EP (7x7 mm) - same | 48-pin TQFP-EP (7x7 mm) - same | 48-pin TQFP-EP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB - same | 128 KB - upgrade | 32 KB - downgrade | 128 KB - upgrade | 64 KB - same |
| SRAM | 4 KB | 4 KB - same | 8 KB - upgrade | 2 KB - downgrade | 8 KB - upgrade | 4 KB - same |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 2.3 V to 5.5 V (F) |
| Temperature Grade | Extended (-40 to +125C) | Industrial (-40 to +85C) | Industrial (-40 to +85C) | Extended (-40 to +125C) | Industrial (-40 to +85C) | Extended (-40 to +125C) |
| Maximum CPU Frequency | 64 MHz | 64 MHz - same | 64 MHz - same | 64 MHz - same | 64 MHz - same | 64 MHz - same |
| EEPROM | 256 B | 256 B - same | 256 B - same | 256 B - same | 256 B - same | 256 B - same |
| Peripheral Set | 12-bit ADC2, DMA, PPS, CWG, PWM | 12-bit ADC2, DMA, PPS, CWG, PWM - same | 12-bit ADC2, DMA, PPS, CWG, PWM - same | 12-bit ADC2, DMA, PPS, CWG, PWM - same | 12-bit ADC2, DMA, PPS, CWG, PWM - same | 12-bit ADC2, DMA, PPS, CWG, PWM - same |
主な差別化要因
- Integrated DMA engine eliminates CPU load for peripheral data movement （vs PIC18F46K22)
- 12-bit ADC2 with Computation provides hardware oversampling and threshold detection （vs PIC18F46K22 10-bit ADC)
- XLP technology achieves <100 nA sleep current （vs PIC18F46K80)
設計ノート
The PIC18LF56K42-E/PT supports 1.8-3.6V operation (LF series). Add a 100 nF decoupling capacitor on each VDD pin pair (pins 10/20 share a VDD plane in many layouts) plus a single 10 uF bulk capacitor at the package entry point. For battery-powered designs, place the MCU in SLEEP mode with RTCC running between ADC samples; the XLP sleep current is below 100 nA typical, supporting multi-year battery life. Wake sources include IOC, ADC threshold, RTCC alarm, and external interrupts on RB ports.
The 48-pin TQFP-EP (7x7 mm) package has a center exposed pad that MUST be soldered to a ground copper pour for thermal dissipation and electrical grounding. Use at least 8 thermal vias (0.3 mm drill) in the EP land to a VSS inner plane. Without EP soldering, junction-to-ambient thermal resistance increases dramatically and high-current PWM GPIO switching (20 mA source/sink) at full duty cycle can cause thermal shutdown. Keep analog traces (RA/RC/RF) routed away from PWM switching traces (RD) to avoid ADC noise coupling.
Estimated: PPS (Peripheral Pin Select) mapping must be configured before peripheral use, or default pin assignments take over and may conflict with hardware design. Use MPLAB Code Configurator (MCC) Melody or Classic to generate the PPS unlock sequence and pin mapping. A common pitfall is forgetting to set the ANSELF register when switching a pin from digital to analog; the ADC2 will not read correctly if the pin digital buffer is still enabled. Also note the F variant runs on 5V while LF is 3.3V - never substitute one for the other without re-checking the power tree.
The high-resolution PWM module can run at >1 MHz carrier frequency. Route PWM outputs (RD port) directly to gate drivers without stubs; keep PWM traces short and away from the analog ADC inputs (RA/RC/RF). For motor control applications, separate the gate-driver supply decoupling from the MCU analog supply by using a ferrite bead. The 12-bit ADC2 with Computation (ADCC) provides hardware oversampling - using accumulation mode (32 samples) effectively gives 16-bit noise performance, but throughput drops to ~3 ksps.
コンプライアンス情報
RoHS and REACH compliant per Microchip product declaration. The /E/PT suffix indicates extended industrial temperature grade but is NOT AEC-Q100 qualified; for automotive applications, use the PIC18F56K42-I/PT with appropriate PPAP documentation or move to AEC-Q100-qualified PIC18 families.