EFM32WG380F256-QFP100T - 256KB Flash ARM Cortex-M4F MCU | Silicon Labs
料号： EFM32WG380F256-QFP100T ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.45 | $5,450.00 |
EFM32WG380F256-QFP100T 概述
A microcontroller is a single-chip computer containing a CPU core, on-chip memory, and a rich set of digital and analog peripherals. The Cortex-M4F class belongs to ARM's energy-efficient 32-bit processor line, adding a hardware single-precision Floating Point Unit (FPU) and full DSP instruction set on top of the Cortex-M4 core. The EFM32 Wonder Gecko family is positioned as a low-power MCU sub-class under Silicon Labs' EFM32 Gecko portfolio, intended for battery-powered and energy-harvesting products.
Key features include an integrated USB 2.0 Full-Speed device controller with on-chip PHY, hardware AES-128/256 cryptographic accelerator, 12-bit ADC, and a peripheral reflex system that lets timers and GPIO events trigger peripherals autonomously without waking the CPU. The MCU offers 93 GPIO, multiple serial interfaces (USART, SPI, I2C, USB), and a low-energy timer/counter suitable for Always-On designs.
Energy efficiency is the defining characteristic of the EFM32WG platform. The device consumes as little as 0.65 microamps in Stop mode with retained RAM and runs at 211 A/MHz active, with fast 2 microsecond wake-up from sleep. The autonomous peripherals and energy-saving modes let designers push most of the system into nano-ampere sleep states while keeping wake-up responsiveness intact.
Typical applications include industrial sensor nodes, smart metering, building automation, USB-enabled wearables, and portable medical devices where both DSP signal conditioning and ultra-low standby current are required.
When designing with this device, pay attention to the 1.8-3.8V supply range and add bulk decoupling on VDD/VDD_USB. Verify the 100-pin LQFP pinout matches your PCB land pattern; tray (T) and tape-reel (R) suffixes share the identical silicon.
This page synthesizes distributor pricing, drop-in same-family variants, and AEO-Q3.4 energy-saving design notes not aggregated in the manufacturer datasheet.
直接替换替代料： EFM32WG380F256-QFP100T ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
EFM32WG380F256-QFP100
✅ 直接替换📋 参考替代料（不在目录中）
EFM32WG380F128-QFP100
✅ 直接替换📋 参考替代料（不在目录中）
EFM32WG380F64-QFP100
✅ 直接替换📋 参考替代料（不在目录中）
EFM32WG980F256-QFP100
✅ 直接替换📋 参考替代料（不在目录中）
EFM32WG380F256-B-QFP100
✅ 直接替换📋 参考替代料（不在目录中）
EFM32WG380F256-QFP100T 最大额定值与电气特性
| Core | ARM Cortex-M4F with single-precision FPU |
| Core Speed | 48 MHz |
| Flash Memory | 256 kB |
| RAM | 32 kB |
| 封装 | 100-LQFP (14x14 mm) |
| 引脚数量 | 100 |
| 电源电压 | 1.85 V to 3.8 V |
| I/O Voltage | 3.3 V typical |
| GPIO Count | 93 |
| USB Controller | USB 2.0 Full-Speed Device with on-chip PHY |
| Crypto Accelerator | AES-128/256 hardware |
| ADC | 12-bit SAR |
| Run Mode Current | 211 uA/MHz |
| Stop Mode Current (RAM retained) | 0.65 uA |
| Wake-up Time from Stop | 2 us (typical) |
| Debug Interface | Serial Wire Debug (SWD) + Embedded Trace Macrocell (ETM) |
| RoHS 状态 | Compliant |
| Packaging | Tray (T suffix) |
EFM32WG380F256-QFP100T 100-lqfp (14x14 mm) 引脚配置指南
EFM32WG380F256-QFP100T（100-lqfp (14x14 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： EFM32WG380F256-QFP100T.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EFM32WG380F256-QFP100T 适用于 6 应用s: Industrial Wireless Sensor Nodes, USB-Enabled Wearable Fitness Devices, Smart Metering / Building Automation, Portable Medical Monitoring, Home Automation / Smart Home Hubs, Asset Tracking / Fleet Telematics.
Industrial Wireless Sensor Nodes
The EFM32WG380F256-QFP100T's 0.65 microamp Stop-mode current and 256 kB flash fit battery-powered industrial sensor nodes with multi-year coin-cell operation. Per the EFM32WG datasheet, the autonomous peripheral reflex system runs ADC conversions on a low-energy timer without CPU wake-up, and 32 kB RAM retains node state across sleep. Companion parts: Silicon Labs Si7021 humidity sensor, EFR32FG radio module.
推荐
USB-Enabled Wearable Fitness Devices
The EFM32WG380F256-QFP100T's integrated USB 2.0 Full-Speed device with on-chip PHY lets wearables charge and sync firmware over USB without an external transceiver. Per the Silicon Labs EFM32WG datasheet, the Cortex-M4F DSP and FPU compute heart-rate FFTs and pedometer steps while consuming only 211 microamp per MHz active. 93 GPIO fits OLED display, button, and accelerometer peripherals.
推荐
Smart Metering / Building Automation
The EFM32WG380F256-QFP100T's 256 kB flash and 12-bit ADC make it ideal for electricity, water, and gas metering endpoints. Per the EFM32WG datasheet, hardware AES-128/256 acceleration encrypts consumption telemetry at low CPU cost, and 93 GPIO drive multiple pulse counters, LCD segment drivers, and wireless M-Bus links. Ultra-low sleep current preserves battery life on wireless meter designs.
推荐
Portable Medical Monitoring
The EFM32WG380F256-QFP100T fits portable medical devices that demand signal-conditioning horsepower with multi-year shelf life. Per the EFM32WG datasheet, the Cortex-M4F DSP runs pulse-oximetry SpO2 algorithms while the 12-bit SAR ADC samples at sub-microamp rates. Hardware AES secures patient data, and the 100-LQFP footprint fits compact medical-device PCBs.
推荐
Home Automation / Smart Home Hubs
The EFM32WG380F256-QFP100T's USB and multiple serial interfaces suit low-power home automation hubs bridging ZigBee, Z-Wave, or proprietary radios. Per the EFM32WG datasheet, the autonomous peripheral reflex system routes incoming radio packets directly to RAM buffers without waking the Cortex-M4F. 256 kB flash stores protocol stacks and OTA firmware images.
推荐
Asset Tracking / Fleet Telematics
The EFM32WG380F256-QFP100T's Cortex-M4F DSP and 32 kB RAM suit battery-powered asset trackers running GPS fix prediction and accelerometer dead-reckoning. Per the EFM32WG datasheet, the 0.65 microamp Stop mode with RAM retention lets trackers wake only on motion events and reconnect over LTE-M or LoRa consumer nodes. Hardware AES encrypts location payloads.
推荐
推荐产品汇总
工程参考数据： EFM32WG380F256-QFP100T ——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 | EFM32WG380F256-QFP100 | EFM32WG380F128-QFP100 | EFM32WG380F64-QFP100 | EFM32WG980F256-QFP100 | EFM32WG380F256-B-QFP100 |
|---|---|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same |
| Core | ARM Cortex-M4F, 48 MHz | ARM Cortex-M4F, 48 MHz | ARM Cortex-M4F, 48 MHz | ARM Cortex-M4F, 48 MHz | ARM Cortex-M4F, 48 MHz | ARM Cortex-M4F, 48 MHz |
| Flash | 256 kB | 256 kB | 128 kB (-50%) | 64 kB (-75%) | 256 kB | 256 kB |
| RAM | 32 kB | 32 kB | 32 kB | 32 kB | 32 kB | 32 kB |
| USB Controller | USB 2.0 FS Device + PHY | USB 2.0 FS Device + PHY | USB 2.0 FS Device + PHY | USB 2.0 FS Device + PHY | USB 2.0 FS Device + PHY | USB 2.0 FS Device + PHY |
| Stop Mode Current | 0.65 uA | 0.65 uA | 0.65 uA | 0.65 uA | 0.65 uA | 0.65 uA |
| GPIO Count | 93 | 93 | 93 | 93 | 93 | 93 |
| Packaging | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel | Tray |
关键差异点
- USB 2.0 Full-Speed device with on-chip PHY in the WG380 family （对比 EFM32WG360F256)
- 256 kB Flash with identical RAM and peripheral set as the WG380F128 （对比 EFM32WG380F128-QFP100)
- Hardware AES-128/256 cryptographic accelerator （对比 EFM32WG380F256-B-QFP100)
设计说明
Place a 1 microfarad ceramic decoupling capacitor within 5 mm of each VDD pin and a 4.7 microfarad bulk capacitor on VDD_USB to keep the on-chip USB PHY stable during hot-plug events. Per the EFM32WG datasheet, AVDD and VDD should be tied together at the board level, and a ferrite bead is recommended to isolate analog noise from the digital rail.
Route the SWDIO and SWCLK traces as a matched-length differential pair, length-matched within 5 mm and at least 3x trace width away from high-frequency switching nodes such as the USB DP/DM signals and oscillator traces. Per Silicon Labs reference designs, an Embedded Trace Macrocell (ETM) trace port is available on dedicated GPIO for instruction tracing - reserve those pins if you plan to use ETM debugging.
The EFM32WG380F256-QFP100T operates from 1.85V to 3.8V; connecting a 5V rail directly will permanently damage the silicon. The on-chip USB PHY requires 3.3V supply on VDD_USB - if your bus is 5V, place an LDO or load switch between VBUS and VDD_USB. When migrating from the WG360 family to WG380, verify that your firmware initializes the on-chip USB PHY clock on HFXO, not the LFXO low-frequency crystal.
Estimated: The 100-LQFP package has a theta_JA near 60 C/W on a 4-layer JEDEC test PCB; the EFM32WG380F256 dissipates only ~25 mW at full 48 MHz active load, so self-heating is negligible in typical designs. For enclosed wearables, consider airflow or a thermal via array beneath the exposed center pad to keep junction temperature below 85 C and preserve long-term reliability.
合规信息
RoHS and REACH compliance per Silicon Labs product page. Not AEC-Q100 qualified - choose automotive grade variants for vehicle applications.
