EFM32TG822F8-QFP48T - 32MHz Cortex-M3 8KB MCU | Silicon Labs
料号： EFM32TG822F8-QFP48T ✗ 停产EFM32TG822F8-QFP48T 概述
A microcontroller is a programmable system-on-chip that integrates a processor core, memory, and peripherals into one device. The EFM32TG822F8 belongs to the EFM32 Tiny Gecko family, where Tiny Gecko devices are ARM Cortex-M3 microcontrollers positioned for low-power embedded control. The EFM32 family hierarchy extends from this device to general-purpose embedded MCUs, which are semiconductor components used for sensing, control, communication, and user-interface functions.
The EFM32TG822F8-QFP48T includes 8 KB of flash organized as 8K x 8, 2 KB of RAM, an 8-by-11 LCD interface, AES hardware support, and three operational amplifiers according to the manufacturer-related component listing. These peripherals allow firmware to drive segmented displays, perform secure data handling, and condition low-level analog signals without requiring several separate discrete devices.
The core runs at 32 MHz and supports an ARM Cortex-M3 architecture with a 32-bit instruction set. The supplied manufacturer specifications identify the device as a single-core Tiny Gecko MCU in the Tiny Gecko series. Its combination of 8 KB flash and 2 KB RAM is appropriate for compact control tasks, sensor nodes, simple user-interface controllers, and connected accessories where code and data storage requirements are modest.
Typical applications include energy meters, industrial sensor interfaces, small display controllers, wearable accessories, battery-powered equipment, and low-cost embedded control modules. The LCD interface is particularly useful for products requiring a local alphanumeric or segmented display, while AES support can assist with authenticated communication or encrypted data handling when used with an appropriate software stack.
Designers should account for the 1.85 V to 3.8 V supply range, confirm the exact peripheral assignments and alternate functions against the device pinout, and provide suitable decoupling close to the supply pins. The TQFP-48 footprint also requires a PCB land pattern with adequate thermal copper and assembly clearance for its 0.5 mm pitch leads.
This product page combines the core manufacturer specifications with application guidance, package information, replacement analysis, and practical design notes. It is intended to help engineers evaluate the EFM32TG822F8-QFP48T for low-power embedded designs, identify same-footprint alternatives, and plan sourcing through the XAIPART Request a Quote form.
直接替换替代料： EFM32TG822F8-QFP48T ——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： EFM32TG822F8-QFP48T （相同外形与封装尺寸） ——差异在于 Architecture, Flash Memory, Product Type, Processor Core, Series.
EFM32TG822F32-QFP48T
✅ 直接替换📋 参考替代料（不在目录中）
EFM32TG222F32-QFP48
✅ 直接替换📋 参考替代料（不在目录中）
EFM32TG822F8-QFP48
✅ 直接替换联系询价
查看数据手册 →EFM32ZG222F32-QFP48
✅ 直接替换联系询价
查看数据手册 →EFM32TG822F8-QFP48T 最大额定值与电气特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Series | Tiny Gecko |
| Processor Core | ARM Cortex-M3 |
| Maximum Clock Speed | 32 MHz |
| Flash Memory | 8 KB (8K x 8) |
| RAM Memory | 2 KB |
| Supply Voltage Range | 1.85 V to 3.8 V |
| Architecture | 32-bit single-core |
| LCD Controller | 8 x 11 LCD interface |
| Security Peripheral | AES hardware support |
| Operational Amplifiers | 3 |
| 封装 | 48-TQFP (7 x 7 mm) |
| 安装类型 | Surface Mount |
| Supplier Device Package | 48-TQFP (7 x 7 mm) |
| Core Count | 1 core |
EFM32TG822F8-QFP48T 48-tqfp (7 x 7 mm) 引脚配置指南
EFM32TG822F8-QFP48T（48-tqfp (7 x 7 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： EFM32TG822F8-QFP48T.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EFM32TG822F8-QFP48T 适用于 6 应用s: Compact LCD Energy Meter, Industrial Sensor Interface, Battery-Powered Sensor Node, Secure Connected Accessory, Small Appliance Control Panel, Low-Cost Data Acquisition Module.
Compact LCD Energy Meter
The EFM32TG822F8-QFP48T fits a compact meter because it combines a 32 MHz ARM Cortex-M3 core with an integrated 8 x 11 LCD interface. The controller can display measured values directly without a separate display driver, while 2 KB of RAM supports a modest display buffer and application state. Its 1.85 V to 3.8 V operating range supports low-voltage meter designs. The three operational amplifiers can support appropriate low-level signal conditioning. Firmware must fit within 8 KB of flash, so protocol-heavy or complex display layouts may require the 32 KB variant.
推荐
Industrial Sensor Interface
The EFM32TG822F8-QFP48T is appropriate for small industrial sensor modules that need local control without a high-end processor. Its ARM Cortex-M3 core executes acquisition, filtering, threshold, and communication tasks at up to 32 MHz, while the three integrated operational amplifiers can handle suitable low-level analog conditioning. The 1.85 V to 3.8 V range simplifies deployment around low-voltage sensor rails. With only 8 KB of flash and 2 KB of RAM, the design should use compact drivers and avoid large buffering frameworks. Industrial temperature and EMC requirements must be verified separately.
推荐
Battery-Powered Sensor Node
The EFM32TG822F8-QFP48T suits a battery-powered sensor node when the application can operate from a 1.85 V to 3.8 V rail. Its low-voltage range permits direct use with suitable low-energy supply arrangements, and the 32 MHz Cortex-M3 core provides useful processing throughput without requiring an external processor. The small 48-pin TQFP package supports compact board construction. Design work should focus on sleep-mode current, wake sources, and sensor duty cycle using the manufacturer datasheet. The 8 KB flash limit also favors event-driven firmware that avoids large local data storage.
推荐
Secure Connected Accessory
The EFM32TG822F8-QFP48T can support a compact connected accessory that combines local control with authenticated data exchange. Its listed AES hardware peripheral can accelerate cryptographic operations when supported by the application stack, reducing the processing burden on the 32 MHz Cortex-M3 core. The LCD interface can provide pairing or status feedback, while the three operational amplifiers support appropriate analog front-end functions. Firmware and key-storage architecture must be reviewed carefully because hardware AES presence alone does not define complete product security.
推荐
Small Appliance Control Panel
The EFM32TG822F8-QFP48T is useful in a compact appliance control panel requiring a local display and limited embedded logic. Its 8 x 11 LCD interface can drive suitable display segments, while the 32 MHz core handles button states, timers, alarms, and simple motor or heater control functions. Three operational amplifiers may assist with sensing, but the selected operating points must remain within their specified limits. Because the target provides only 8 KB of flash, a menu-heavy interface or extensive diagnostics may fit better with the 32 KB EFM32TG822F32-QFP48T.
推荐
Low-Cost Data Acquisition Module
The EFM32TG822F8-QFP48T can serve as the control core of a small data-acquisition module that performs local signal processing and forwards results over a serial interface. The three operational amplifiers provide a useful starting point for conditioning low-level analog inputs, and the 32 MHz ARM Cortex-M3 core can handle filtering and data preparation. The 2 KB RAM supports limited buffering, while 8 KB flash constrains code complexity. For continuous logging, expanded storage, or larger protocol stacks, a 32 KB flash configuration offers more design headroom without changing the general package class.
推荐
推荐产品汇总
工程参考数据： EFM32TG822F8-QFP48T ——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 | EFM32TG822F32-QFP48T | EFM32TG222F32-QFP48 | EFM32TG822F8-QFP48 | EFM32ZG222F32-QFP48 |
|---|---|---|---|---|---|
| Package | 48-TQFP (7 x 7 mm) | 48-TQFP (7 x 7 mm) | 48-pin QFP | 48-TQFP (7 x 7 mm) | 48-pin QFP |
| Brand | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
| Flash Memory | 8 KB | 32 KB | 32 KB | 8 KB | 32 KB |
| Series | Tiny Gecko | Tiny Gecko | Tiny Gecko | Tiny Gecko | Zero Gecko |
关键差异点
- Lower flash capacity provides a clear minimum-memory target （对比 EFM32TG822F32-QFP48T)
- Integrated display and analog resources support compact metering designs （对比 EFM32TG222F32-QFP48)
- Same-family identity supports controlled migration paths （对比 EFM32ZG222F32-QFP48)
设计说明
Assign the PCB land pattern from the manufacturer's 48-pin TQFP drawing and verify pin 1 orientation against the package marking. Keep the 0.5 mm lead pitch and the 7 mm by 7 mm body dimensions unchanged when reusing a board layout. Confirm every alternate-function assignment against the device pinout, especially LCD, debug, reset, and analog signals, before releasing manufacturing data.
Design the supply path for the documented 1.85 V to 3.8 V operating range. Place the required input and bypass capacitors close to their corresponding device pins, with the return path kept short and continuous. Decoupling values and stability requirements should follow the manufacturer datasheet and reference circuit rather than generic assumptions. Do not expose the device to a 5 V rail unless the board includes suitable regulation.
Avoid treating a QFP48 package match as proof of complete device interchangeability. Check the exact MCU family, memory capacity, peripheral configuration, boot options, programming interface, and alternate pin functions. EFM32TG822F32-QFP48T and EFM32TG222F32-QFP48 provide 32 KB of flash, four times the target's 8 KB, so firmware sizing and configuration migration must be reviewed before substitution.
The integrated LCD, AES, and analog functions can create adjacent signal-routing constraints even in a 48-pin device. Keep analog amplifier inputs away from fast digital and LCD lines, provide a clean analog ground reference where the application requires it, and route sensitive traces away from switching nodes. Verify the package-specific recommended layouts and maximum transition rates in the manufacturer documentation.
合规信息
The available product information identifies the EFM32TG822F8-QFP48T as a 48-pin, 3.3 V-class Tiny Gecko microcontroller but does not state its compliance status. Use the manufacturer product page and current material declarations for production qualification.
