PIC18LF46J13T-I/ML - 64KB Flash 8-bit MCU, 44-QFN | Microchip
料号： PIC18LF46J13T-I/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.21 | $4.21 |
| 10 | $3.79 | $37.90 |
| 100 | $3.21 | $321.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.45 | $2,450.00 |
PIC18LF46J13T-I/ML 概述
What is an 8-bit microcontroller? An MCU (microcontroller unit) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (RAM), non-volatile EEPROM, and a set of peripherals (ADC, timers, communication ports). 8-bit MCUs like the PIC18 family use an 8-bit data path optimized for low power, deterministic interrupt response, and ease of use, sitting under the broader category of embedded computing devices alongside 16-bit and 32-bit MCUs.
Key features include 34 digital I/O pins, an internal oscillator, two USART, two SPI, two I2C, USB 2.0 full-speed transceiver (device/host/OTG), a 12-channel 12-bit ADC, two analog comparators, and CTMU charge-time measurement hardware. The nanoWatt XLP (eXtreme Low Power) technology delivers sleep currents in the nanoampere range, enabling multi-year battery life on coin cells.
The device uses a Harvard-architecture PIC core with hardware multiplier, providing deterministic 12 MIPS throughput and a 16-bit instruction set. The integrated USB 2.0 transceiver with on-chip PHY eliminates external USB chips, while the 12-bit ADC with auto-scan supports sensor arrays directly. Internal voltage reference and temperature indicator reduce external components.
Typical applications include USB peripherals, low-power wireless sensor nodes, medical handheld instruments, consumer electronics with USB charging/communication, and industrial HMI panels. The combination of on-chip USB, ADC, and nanoWatt XLP suits mains-powered or battery-powered mixed-signal designs.
When designing with this part, place a 100 nF decoupling capacitor on each VDD/VSS pair and route the exposed thermal pad to a continuous ground pour for best thermal and EMI performance. The 44-pin QFN requires PCB design with microvia or filled via array under the EP to meet solder-joint reliability targets.
This page synthesizes distributor pricing, verified drop-in alternatives from the same QFN-44 footprint, and practical low-power design notes not consolidated in the manufacturer datasheet.
直接替换替代料： PIC18LF46J13T-I/ML ——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： PIC18LF46J13T-I/ML （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Timers, Core.
快速对比工具——选择替代料号进行并排对比：
PIC18LF46J13-I/ML
✅ 直接替换✓ 有现货
$3.45 / 个
查看数据手册 →PIC18F46J13T-I/ML
✅ 直接替换✓ 有现货
$2.2 / 个
查看数据手册 →PIC18LF46J11T-I/ML
✅ 直接替换✓ 有现货
$3.17 / 个
查看数据手册 →PIC18LF45J50T-I/ML
✅ 直接替换✓ 有现货
$3.65 / 个
查看数据手册 →PIC18LF46J50T-I/ML
✅ 直接替换✓ 有现货
$3.15 / 个
查看数据手册 →PIC18LF46J13T-I/ML 最大额定值与电气特性
| Program Memory Size | 64 KB (32K x 16) |
| RAM Size | 3.8 KB (3800 bytes) |
| Data EEPROM | 0 bytes (none) |
| CPU Core | PIC (8-bit Harvard) |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| Number of I/O Pins | 34 |
| ADC | 12-bit, 12 channels |
| USB | USB 2.0 Full-Speed device/host/OTG with on-chip PHY |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C |
| Analog Comparators | 2 |
| Internal Oscillator | Yes |
| 封装 | 44-pin QFN with exposed pad (ML) |
| 工作温度 | -40C to +85C (Industrial) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Low-Power Technology | nanoWatt XLP |
PIC18LF46J13T-I/ML 44-pin qfn with exposed pad (ml) 引脚配置指南
PIC18LF46J13T-I/ML（44-pin qfn with exposed pad (ml) 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： PIC18LF46J13T-I/ML.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC18LF46J13T-I/ML 适用于 6 应用s: USB Peripherals and HID Devices, Low-Power Battery Sensor Nodes, Medical Handheld Instruments, Industrial HMI Panels, Consumer Electronics with USB Charging/Communication, Data Acquisition and Sensor Interface Boards.
USB Peripherals and HID Devices
The PIC18LF46J13T-I/ML's integrated USB 2.0 full-speed transceiver with on-chip PHY makes it ideal for USB peripherals such as HID input devices, custom human-interface devices, and USB-to-UART bridges. Its 12 MIPS performance at 48 MHz is more than adequate for HID report generation at 1000 Hz polling rates, while 64KB Flash accommodates USB stack, class driver, and application firmware. The 2.0V to 3.6V supply range aligns with USB 2.0 bus-powered designs that derive power from the VBUS rail. nanoWatt XLP sleep current under 100 nA allows USB suspend-mode compliance for self-powered devices that must enter low power when the bus is idle.
推荐
Low-Power Battery Sensor Nodes
The PIC18LF46J13T-I/ML's nanoWat XLP technology delivers sleep currents below 100 nA in deep sleep, making it well suited for battery-powered wireless sensor nodes operating from coin cells or two-AA cells. The 12-bit ADC with 12 channels can read multiple sensor types directly, while internal temperature indicator and CTMU enable onboard calibration without external components. The 2.0V to 3.6V operating range covers the full discharge curve of alkaline and lithium chemistries. Combined with on-chip SPI/I2C for short-range radio modules, the device builds complete sensor nodes that can run for years on a single battery.
推荐
Medical Handheld Instruments
The PIC18LF46J13T-I/ML fits medical handheld designs such as glucose meters, pulse oximeters, and patient thermometers due to its 12-bit ADC accuracy, low-noise analog comparators, and low-power operation. The 12-bit ADC provides the resolution required for clinical-grade measurements, while 3.8KB RAM accommodates sample buffering and averaging algorithms. The 44-QFN package suits compact handheld enclosures, and the -40C to +85C industrial temperature range handles the thermal environments of medical environments. USB connectivity simplifies data upload to PCs or charging cradles.
推荐
Industrial HMI Panels
The PIC18LF46J13T-I/ML supports industrial HMI panels (human-machine interface) with LCD or LED displays, keypad input, and serial communication to a host controller. Its 34 I/O pins drive matrix keypads, LED indicators, and segment displays directly. The two UARTs allow simultaneous connection to a host PLC and a debug terminal, while SPI supports graphical LCD controllers. The 64KB Flash fits HMI protocol stacks including Modbus RTU or proprietary serial protocols. The 2.0V to 3.6V supply suits 24V industrial systems after step-down conversion, and -40C to +85C handles factory floor thermal ranges.
推荐
Consumer Electronics with USB Charging/Communication
The PIC18LF46J13T-I/ML targets consumer products with USB charging or USB data functionality, including smart speakers, fitness trackers, and connected appliances. The on-chip USB 2.0 PHY eliminates external USB chips, reducing BOM cost and PCB area. The 12 MIPS CPU handles communication stacks, sensor fusion, and user-interface firmware. The exposed-pad 44-QFN package supports slim enclosures, and the 2.0V to 3.6V range aligns with single-cell Li-ion battery packs. nanoWatt XLP keeps standby current low between user interactions.
推荐
Data Acquisition and Sensor Interface Boards
The PIC18LF46J13T-I/ML suits multi-channel data acquisition boards interfacing analog sensors to USB or serial hosts. The 12-channel 12-bit ADC with auto-scan can sample thermocouples, strain gauges, and process-control signals at adequate rates for slow industrial signals. CTMU hardware enables capacitive touch and time-of-flight measurements, while the two analog comparators support threshold detection and zero-crossing detection. USB output streams real-time data to PCs, and 64KB Flash accommodates calibration tables and PID control firmware for closed-loop applications.
推荐
推荐产品汇总
工程参考数据： PIC18LF46J13T-I/ML ——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 | PIC18LF46J13-I/ML | PIC18F46J13T-I/ML | PIC18LF46J11T-I/ML | PIC18LF45J50T-I/ML | PIC18LF46J50T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (ML) | 44-QFN (ML) - same | 44-QFN (ML) - same | 44-QFN (ML) - same | 44-QFN (ML) - same | 44-QFN (ML) - same |
| Program Memory | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB | 64 KB |
| RAM Size | 3.8 KB | 3.8 KB | 3.8 KB | 3.8 KB | 3.8 KB | 3.8 KB |
| Operating Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 5.5V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Max CPU Speed | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) |
| USB | USB 2.0 FS device/host/OTG | USB 2.0 FS device/host/OTG | USB 2.0 FS device/host/OTG | USB 2.0 FS device/host/OTG | USB 2.0 FS device/host/OTG | USB 2.0 FS device/host/OTG + Ethernet MAC |
| ADC | 12-bit, 12 channels | 12-bit, 12 channels | 12-bit, 12 channels | 12-bit, 12 channels | 10-bit, 9 channels | 12-bit, 12 channels |
| Packaging | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
关键差异点
- On-chip USB 2.0 with integrated PHY reduces BOM by one IC （对比 PIC18F4520-I/ML)
- Wider program memory for richer USB stacks and applications （对比 PIC18LF46J11T-I/ML)
- Lower voltage operation for battery-powered designs （对比 PIC18F46J13T-I/ML)
设计说明
Estimated: PIC18LF46J13T-I/ML active current at 48 MHz with all peripherals active is approximately 15-20 mA at 3.3V (50-66 mW). In sleep mode with nanoWatt XLP, current drops below 100 nA. For USB bus-powered designs, total current must stay under 100 mA (low-power) or 500 mA (high-power) USB budget. Add a 4.7uF bulk capacitor on VBUS for USB inrush.
The 44-QFN package exposes a thermal pad on the underside that MUST be soldered to a continuous ground pour for thermal dissipation and signal return. Use an array of filled or micro vias (typically 0.3 mm drill, 0.5 mm pitch) to connect the exposed pad to inner ground planes. Place 100 nF decoupling capacitors within 2 mm of each VDD/VSS pin pair, plus a 10 uF bulk capacitor near the IC.
Route the USB DP and DN lines as a 90-ohm differential pair with matched lengths (within 150 mil), keep them short, and surround with ground. Avoid routing other signals under the USB traces or the 44-QFN exposed pad. The analog AVdd/AVss pins require their own low-noise LDO or ferrite-bead isolation from digital VDD to keep ADC readings clean (target <2 LSB noise).
Do not exceed 3.6V on any pin when using the LF variant - the 5V-tolerant I/O is lost compared to the F variant. Ensure configuration bits are set correctly for the internal oscillator before code execution; an unconfigured device on the J series may not start. When migrating from PIC18F46J13 to LF, re-validate brown-out and voltage regulator settings for the narrower 2.0V-3.6V supply window.
合规信息
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified; this is a general-purpose industrial MCU, not automotive grade. Halogen-free status not explicitly stated in available data.
