PIC18LF67K40-I/PT - 64MHz 8-bit MCU, 128KB Flash, XLP | Microchip
料号： PIC18LF67K40-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.45 | $44.50 |
| 100 | $3.96 | $396.00 |
| 500 | $3.57 | $1,785.00 |
| 1,000 | $3.17 | $3,170.00 |
PIC18LF67K40-I/PT 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a mix of analog and digital peripherals. PIC18 is Microchip's enhanced 8-bit Harvard architecture, sitting between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 line. Low-dropout (LF) variants extend battery life by allowing direct connection to single-cell Li-ion or two AA cells, where the conventional F-variant would require a boost converter. The K40 generation is positioned as the high-performance, low-power tier with XLP (eXtreme Low Power) nanoWatt technology.
Key differentiating features include 128 KB Flash, 4 KB RAM, 1 KB EEPROM, 64 MHz max CPU clock with 16 MIPS throughput, and CIPs such as Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), Cyclic Redundancy Check (CRC) with memory scan, Hardware Limit Timer (HLT), and Configurable Logic Cell (CLC). Peripherals include a 12-bit ADC with computation (ADCC) capable of up to 300 ksps, multiple UART/SPI/I2C, and 8-bit/16-bit timer resources. The 64-pin TQFP footprint exposes up to 60 I/O pins.
The architecture uses a modified Harvard bus with separate program Flash and data SRAM buses, allowing the CPU to fetch an instruction while reading data from RAM in the same cycle. Power-saving modes (Sleep, Idle, Doze, Peripheral Module Disable) are fine-grained so unused CIPs can be shut down individually, dropping active current below 1 uA in Retention Sleep.
Typical applications include IoT edge sensor nodes, battery-powered HVAC controls, low-power wireless sensor hubs, smart metering, automotive body and interior modules (sensor fusion, lighting, HMI), industrial HMI panels, USB-to-UART bridges, and general-purpose embedded control boards. The XLP feature set also makes the part a fit for energy-harvesting devices where quiescent draw dominates BOM cost.
When designing with this part, choose between the LF (1.8-3.6 V) and F (2.3-5.5 V) variants based on rail voltage; both share the same 64-pin TQFP footprint, so PCB layout can remain fixed while the BOM swaps to match power supply requirements. Decoupling caps (100 nF per VDD pair plus a bulk 10 uF) and proper ICD/ICSP routing are mandatory for in-field reprogrammability.
直接替换替代料： PIC18LF67K40-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC18LF67K40-I/PT （相同外形与封装尺寸） ——差异在于 Package, ADC, DAC, I/O Pins, Core.
快速对比工具——选择替代料号进行并排对比：
PIC18F67K40-I/PT
✅ 直接替换✓ 有现货
$2.95 / 个
查看数据手册 →PIC18F67K40T-I/PT
✅ 直接替换✓ 有现货
$4.25 / 个
查看数据手册 →PIC18F67K40-E/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.85 / 个
查看数据手册 →PIC18LF66K40-I/PT
✅ 直接替换✓ 有现货
$3.85 / 个
查看数据手册 →PIC18LF65K40-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC18LF47K40-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.65 / 个
查看数据手册 →PIC18LF67K40-I/PT 最大额定值与电气特性
| Core Architecture | PIC 8-bit Harvard (PIC18 enhanced) |
| Family | PIC18 "K40" (eXtreme Low Power XLP) |
| CPU Clock Speed | 64 MHz max, 16 MIPS throughput |
| Program Memory (Flash) | 128 KB |
| Data Memory (SRAM) | 4 KB |
| EEPROM | 1 KB |
| Operating Voltage (LF) | 1.8 V to 3.6 V |
| Operating Temperature (I grade) | -40C to +85C |
| 封装 | 64-pin TQFP (PT) 10x10 mm |
| I/O Pins | 60 |
| Communication | UART, SPI, I2C |
| Core Independent Peripherals | CWG, WWDT, CRC/scan, HLT, CLC |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Programming/Debug | ICSP via PGC/PGD, ICD support |
PIC18LF67K40-I/PT 64-pin tqfp (pt) 10x10 mm 引脚配置指南
PIC18LF67K40-I/PT（64-pin tqfp (pt) 10x10 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC18LF67K40-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC18LF67K40-I/PT 适用于 7 应用s: Battery-Powered IoT Sensor Node, Industrial HMI Control Panel, Automotive Body and Interior Module, Smart Energy Meter / Utility Endpoint, USB-to-UART Bridge / Connectivity Dongle, Consumer White Goods Control Board, Energy-Harvesting Wireless Sensor.
Battery-Powered IoT Sensor Node
The PIC18LF67K40-I/PT's 1.8 V to 3.6 V LF supply range and XLP nanoWatt Sleep modes make it a strong fit for battery-powered IoT sensor nodes running from a single CR2032 or 2x AA cell. At Sleep retention currents below 1 uA (per Microchip XLP datasheet claims), the part wakes periodically on a WWDT interrupt, samples a sensor via the 12-bit ADCC, transmits via UART/SPI, and returns to Sleep. The 128 KB Flash comfortably fits LoRaWAN or BLE protocol stacks alongside application code.
推荐
Industrial HMI Control Panel
For industrial HMI panels with keypads, displays, and serial backhaul, the PIC18LF67K40-I/PT delivers 16 MIPS at 64 MHz, enough headroom for menu rendering and debounced keypad scanning. Core Independent Peripherals such as CLC and CWG offload key-scan timing to hardware, freeing the CPU. The 64-pin TQFP exposes 60 I/O pins for matrix keypads, character LCD modules, status LEDs, and UART links to a PLC. The LF variant supports direct 3.3 V operation on industrial 24 V systems after buck regulation.
推荐
Automotive Body and Interior Module
Body and interior automotive applications such as seat controllers, mirror adjusters, lighting modules, and HVAC flaps benefit from the PIC18LF67K40-I/PT's Core Independent Peripherals and 128 KB Flash for CAN-capable firmware stacks (via SPI-attached CAN transceivers). CWG drives half-bridge FET control for motor loads while CRC/Memory Scan validates Flash content for ASIL-rated functional safety per Microchip automotive collateral. Note: the LF variant in I-grade is rated -40C to +85C; for under-hood -40C to +125C, select the E-grade alternative.
推荐
Smart Energy Meter / Utility Endpoint
Single-phase smart energy meters and utility endpoints use the PIC18LF67K40-I/PT's 12-bit ADCC to sample shunt current and line voltage while the CIPs (CWG, HLT, CRC) run metering algorithms in hardware. The 128 KB Flash is sufficient for IEC 62056-21 protocol stacks and signed firmware. With Selective Peripheral Module Disable (PMD) the MCU keeps metering peripherals active while CPU sleeps, sustaining nanoWatt XLP operation across battery-backed RTC domains per Microchip datasheet family notes.
推荐
USB-to-UART Bridge / Connectivity Dongle
USB-to-UART bridges and connectivity dongles for firmware flashing or field service rely on the PIC18LF67K40-I/PT's native UART/SPI/I2C peripherals plus ample Flash for protocol translation and command interpreters. With 60 GPIO and 64-pin TQFP, a single MCU handles USB-attached (via external transceiver) serial conversion alongside status LEDs and configuration switches. The LF supply range allows dongles to be powered directly from USB 3.3 V rails without an LDO per Microchip application notes.
推荐
Consumer White Goods Control Board
Consumer appliances such as washing machines, dishwashers, and induction cooktops benefit from the PIC18LF67K40-I/PT's combination of Core Independent Peripherals (CLC, CWG, WWDT) for motor drive and safety interlocks, plus 128 KB Flash to host capacitive-touch and inverter-control firmware. The 64-pin TQFP package simplifies multilayer PCB layout with ample room for heatsinking and signal isolation. Per Microchip family datasheets, XLP nanoWatt Sleep keeps standby power below regulatory limits.
推荐
Energy-Harvesting Wireless Sensor
Energy-harvesting wireless sensors operating from a solar cell or thermal gradient require the lowest possible active and sleep current. The PIC18LF67K40-I/PT's XLP nanoWatt technology and 1.8 V minimum VDD allow direct connection to harvester outputs after rectification, with PMD shutting down peripherals to extend operating time per Microchip application notes. The 64-pin TQFP leaves room for expansion: a sensor interface, a low-power RF link (e.g., SPI-attached sub-GHz transceiver), and energy-storage supercap management.
推荐
推荐产品汇总
工程参考数据： PIC18LF67K40-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC18F67K40-I/PT | PIC18F67K40T-I/PT | PIC18F67K40-E/PT | PIC18LF66K40-I/PT | PIC18LF65K40-I/PT | PIC18LF47K40-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (PT) 10x10 mm | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same |
| Operating Voltage Range | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 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 |
| Flash Program Memory | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB | 32 KB | 128 KB |
| Max CPU Clock | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| RAM / EEPROM | 4 KB / 1 KB | 4 KB / 1 KB | 4 KB / 1 KB | 4 KB / 1 KB | 4 KB / 1 KB | 2 KB / 1 KB | 4 KB / 1 KB |
| Operating Temperature | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +125C (E-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) | -40C to +85C (I-grade) |
| Core Independent Peripherals (CIP) | CWG, WWDT, CRC/scan, HLT, CLC | CWG, WWDT, CRC/scan, HLT, CLC (same) | CWG, WWDT, CRC/scan, HLT, CLC (same) | CWG, WWDT, CRC/scan, HLT, CLC (same) | CWG, WWDT, CRC/scan, HLT, CLC (same) | CWG, WWDT, CRC/scan, HLT, CLC (same) | CWG, WWDT, CRC/scan, HLT, CLC (same) |
关键差异点
- Low-voltage LF operation for direct 3.3 V battery power （对比 PIC18F67K40-I/PT)
- Full 128 KB Flash for protocol stack plus application （对比 PIC18LF66K40-I/PT)
- Extended XLP Sleep with selective Peripheral Module Disable (PMD) （对比 PIC18LF47K40-I/PT)
设计说明
Decouple every VDD/AVDD pair with a 100 nF X7R ceramic capacitor placed within 3 mm of the pin, plus a single bulk 10 uF X5R capacitor shared across the chip per Microchip PIC18(L)F67K40 datasheet recommendation. The LF variant tolerates 1.8 V to 3.6 V; for 5 V rails, select the F-variant (PIC18F67K40). Use an LDO with PSRR > 60 dB at 100 kHz to avoid coupling switching noise into the ADCC reference.
Route the ICSP clock/data pair (PGC/PGD) and MCLR as a 3-wire programming connector with 4.7 kohm pull-up on MCLR to VDD per Microchip ICD specification. Keep PGC/PGD traces short and away from switching power nodes. The 64-pin TQFP at 0.5 mm pitch allows signal escape on a 4-layer PCB; reserve the inner layer as a continuous ground plane under the IC for thermal dissipation and EMI shielding.
Estimated: at -40C to +85C industrial ambient and typical 64 MHz / 3.3 V operation, the PIC18LF67K40-I/PT draws approximately 8 mA active, dissipating ~25 mW. The 64-pin TQFP theta_JA is approximately 45 C/W (per Microchip TQFP-64 package outline), giving a junction temperature rise of approximately 1.1C above ambient in still air. No heatsink is required for normal operation; verify junction rise against E-grade maximums (150C) only if operating above 70C ambient.
Do not configure the LF variant above 3.6 V VDD or it will suffer latch-up damage; the PIC18F67K40 F-variant must be used for 5 V rails. Avoid leaving unused I/O as inputs without pull-ups - configure them as outputs or enable internal weak pull-ups via WPU registers to prevent shoot-through. The CONFIG words must be set before code execution to disable ICD/ICSP for production, per Microchip programming specification.
合规信息
Microchip PIC18 K40 family parts ship lead-free and RoHS compliant per the manufacturer product page. AEC-Q100 qualified automotive variants may exist with different ordering suffixes; the I-grade -40C to +85C industrial variant in this listing is not AEC-Q100 qualified - select a Q-suffix or V-suffix part for automotive applications.
