EFM32TG822F8-QFP48T - 32MHz Cortex-M3 8KB MCU | Silicon Labs
MPN： EFM32TG822F8-QFP48T ✗ 停產EFM32TG822F8-QFP48T 概覽
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.
直接替換替代品，適用於 EFM32TG822F8-QFP48T — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EFM32TG822F8-QFP48T （相同外形與佔位） — 差異在於 Architecture, Flash Memory, Product Type, Processor Core, Series.
EFM32TG822F32-QFP48T
✅ 直接替換📋 參考替代品（不在目錄中）
EFM32TG222F32-QFP48
✅ 直接替換📋 參考替代品（不在目錄中）
EFM32TG822F8-QFP48
✅ 直接替換聯絡詢價
查看資料表 →EFM32ZG222F32-QFP48
✅ 直接替換聯絡詢價
查看資料表 →EFM32TG822F8-QFP48T 最大額定值與電氣特性
| 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 |
| 封裝 | 48-TQFP (7 x 7 mm) |
| 安裝類型 | Surface Mount |
| Supplier Device Package | 48-TQFP (7 x 7 mm) |
| Core Count | 1 core |
EFM32TG822F8-QFP48T 48-tqfp (7 x 7 mm) 腳位配置指南
EFM32TG822F8-QFP48T（48-tqfp (7 x 7 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： EFM32TG822F8-QFP48T.
請參閱 資料表 以查看完整腳位配置。
典型應用
EFM32TG822F8-QFP48T 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 EFM32TG822F8-QFP48T — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Lower flash capacity provides a clear minimum-memory target (對比EFM32TG822F32-QFP48T)
- Integrated display and analog resources support compact metering designs (對比EFM32TG222F32-QFP48)
- Same-family identity supports controlled migration paths (對比EFM32ZG222F32-QFP48)
設計說明
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.
合規資訊
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.
