EFM32TG822F32-QFP48 - 32MHz Cortex-M3 MCU | Silicon Labs
MPN： EFM32TG822F32-QFP48 ✓ 啟用中EFM32TG822F32-QFP48 概覽
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into a single device used to control embedded systems. The ARM Cortex-M3 core provides a 32-bit processing architecture for control tasks, while the EFM32 Tiny Gecko platform adds energy-saving modes and fast wake-up behavior. This hierarchy places the device within the MCU category, where low-power embedded control, peripheral integration, and compact package design determine suitability.
The principal features include operation up to 32 MHz, 32 KB of Flash for firmware, 4 KB of SRAM for working data, and 37 digital I/O pins. The device also supports an 8 x 11 LCD interface, hardware AES capability, three operational amplifiers, and two 16-bit timers. These resources allow a design to consolidate functions that might otherwise require separate display controllers, encryption hardware, analog amplifiers, and timer ICs.
Silicon Labs bases the EFM32TG822F32-QFP48 on the EFM32 Tiny Gecko low-power platform. The architecture is intended to balance responsive processing with restricted current consumption in systems that spend substantial time in low-energy states. Its combination of Cortex-M3 instruction-set support, integrated analog and security resources, and a 7 x 7 mm TQFP footprint supports compact control designs without external peripheral duplication.
Typical uses include energy-conscious industrial control modules, battery-powered sensing equipment, compact human-machine-interface controllers, security-aware embedded nodes, and low-power IoT products. The LCD interface is particularly useful for local status displays, while the AES hardware can accelerate cryptographic operations. The three op amps support analog signal conditioning close to the sensing or actuator interface, reducing external analog component count.
Designers should review the manufacturer datasheet pin-description table before assigning board functions and should account for the exposed power, ground, reset, and programming connections in the PCB layout. Stable decoupling close to the supply pins and a compliant programming interface are essential for reliable operation. Software configuration should also use the low-energy modes and wake-up sources appropriate to the product's duty cycle.
This page combines manufacturer specifications, package details, verified sourcing links, drop-in replacement analysis, and practical design guidance in one engineering reference. It supports faster MCU selection by placing memory, LCD, AES, analog, timing, and low-power capabilities alongside PCB and purchasing considerations.
直接替換替代品，適用於 EFM32TG822F32-QFP48 — 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： EFM32TG822F32-QFP48 （相同外形與佔位） — 差異在於 Maximum CPU Frequency, Package, Processor Core, Product Type, Timers.
EFM32TG822F32-QFP48T
✅ 直接替換📋 參考替代品（不在目錄中）
EFM32TG822F32-D-QFP48
✅ 直接替換📋 參考替代品（不在目錄中）
EFM32TG822F16-QFP48
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →EFM32TG822F64-QFP48
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
EFM32TG222F32-QFP48
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
EFM32ZG222F32-QFP48
✅ 直接替換聯絡詢價
查看資料表 →EFM32TG822F32-QFP48 最大額定值與電氣特性
| Product Type | ARM Cortex-M3 Microcontroller |
| Processor Core | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz |
| Architecture | 32-bit |
| Flash Memory | 32 KB |
| RAM | 4 KB |
| Digital I/O Pins | 37 |
| Timers | 2 x 16-bit |
| LCD Controller | 8 x 11 LCD |
| Security Hardware | AES |
| Operational Amplifiers | 3 |
| 供應電壓 | 2.5 V or 3.3 V |
| 封裝 | 48-pin TQFP, 7 x 7 mm |
| 安裝類型 | Surface Mount |
| Microcontroller Family | EFM32 Tiny Gecko |
| Low-Power Features | Energy-saving modes and fast wake-up |
| RoHS 狀態 | unknown |
| REACH Status | unknown |
EFM32TG822F32-QFP48 48-pin tqfp, 7 x 7 mm 腳位配置指南
EFM32TG822F32-QFP48（48-pin 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： EFM32TG822F32-QFP48.
請參閱 資料表 以查看完整腳位配置。
典型應用
EFM32TG822F32-QFP48 適用於 6 應用s: Battery-Powered Sensor Nodes, Local LCD User Interfaces, Security-Aware Embedded Control, Analog Signal Conditioning, Industrial Control Modules, Compact IoT Gateways and HMI Controllers.
Battery-Powered Sensor Nodes
The EFM32TG822F32-QFP48 fits battery-powered sensor nodes because its 32 MHz ARM Cortex-M3 core provides responsive processing while the Tiny Gecko platform supports energy-saving modes and fast wake-up behavior. The 32 KB Flash stores application firmware and the 4 KB RAM supports short measurement and control workloads. A designer can wake the device for a sensor sample, process the result, transmit data, and return to a low-energy state. The actual battery life depends on the measurement interval, radio activity, sensor load, and the firmware power policy.
推薦
Local LCD User Interfaces
The EFM32TG822F32-QFP48 is appropriate for compact local interfaces because it integrates an 8 x 11 LCD controller with 37 digital I/O pins and two 16-bit timers. The MCU can update a segment or matrix display, scan controls, and manage product indicators without requiring a separate display controller. At 32 MHz, it also provides enough processing bandwidth for a responsive menu system while retaining the low-power platform benefits. Display characteristics, biasing requirements, and I/O assignments must be matched to the selected LCD in the manufacturer documentation.
推薦
Security-Aware Embedded Control
The EFM32TG822F32-QFP48 supports compact security-aware products through integrated AES hardware in an otherwise resource-constrained control design. A firmware architect can use the accelerator for authentication, encrypted communication setup, and protected data handling while retaining 32 KB of Flash and 4 KB of RAM for application code. The 32 MHz Cortex-M3 core can coordinate sensors, local controls, and communications. Security-sensitive designs should still define key storage, initialization, certificate handling, and update procedures beyond the presence of the AES block.
推薦
Analog Signal Conditioning
The EFM32TG822F32-QFP48 simplifies analog measurement designs because three operational amplifiers are integrated alongside a 32 MHz microcontroller. These amplifiers can support sensor conditioning, buffering, filtering, or amplification close to the source, reducing dependence on external analog ICs. The 37 digital I/O pins and two 16-bit timers provide control and event timing for the acquisition system. Designers should still examine input ranges, offset behavior, amplifier bandwidth, and output drive requirements in the manufacturer electrical characteristics before finalizing the signal chain.
推薦
Industrial Control Modules
The EFM32TG822F32-QFP48 is suitable for compact industrial control modules that require deterministic control, display feedback, and low idle power. Its Cortex-M3 core runs up to 32 MHz, while two 16-bit timers support periodic tasks, input capture, or output timing. The integrated LCD controller can present operating status without a separate display interface, and the three op amps can assist with sensor interfaces. Industrial suitability still depends on the device's specified temperature range, EMC design, isolation strategy, and environmental testing for the finished product.
推薦
Compact IoT Gateways and HMI Controllers
The EFM32TG822F32-QFP48 can act as the control center for a compact IoT gateway or human-machine interface because it combines Cortex-M3 processing, LCD support, AES hardware, analog amplifiers, and extensive I/O in a 7 x 7 mm TQFP package. The 32 KB Flash accommodates compact firmware, while 4 KB of RAM supports protocol state and display buffers. Its low-energy modes help control consumption between network activity periods. The chosen communication transceiver, memory requirements, and radio power budget must be evaluated separately from the MCU.
推薦
推薦產品摘要
工程參考資料，適用於 EFM32TG822F32-QFP48 — 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 | EFM32TG822F32-D-QFP48 | EFM32TG822F16-QFP48 | EFM32TG822F64-QFP48 | EFM32TG222F32-QFP48 | EFM32ZG222F32-QFP48 |
|---|---|---|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 48-pin TQFP, 7 x 7 mm | 48-pin TQFP, 7 x 7 mm | 48-pin TQFP, 7 x 7 mm | 48-pin TQFP, 7 x 7 mm | 48-pin TQFP, 7 x 7 mm | 48-pin TQFP, 7 x 7 mm | 48-pin TQFP, 7 x 7 mm |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB | 64 KB | 32 KB | 32 KB |
主要差異化特點
- Broader integrated peripheral set than the same-package TG222 variant (對比EFM32TG222F32-QFP48)
- Direct ordering-code match for automated assembly (對比EFM32TG822F32-QFP48T)
- Smaller Flash option without changing the core architecture (對比EFM32TG822F16-QFP48)
- Larger firmware-memory alternative in the same device family (對比EFM32TG822F64-QFP48)
設計說明
Place the required supply-decoupling capacitors immediately adjacent to the device power pins, with short ground returns and an uninterrupted ground plane beneath the TQFP footprint. Review the manufacturer recommended capacitor values and PCB layout guidance before finalizing the design. Keep the 48-pin TQFP land pattern within the manufacturer's mechanical tolerances and verify the pin-1 orientation against the package drawing rather than relying only on the device outline.
Use a 2.5 V or 3.3 V supply arrangement that matches the selected device variant and design the firmware power policy around the Tiny Gecko energy-saving modes. Battery-operated systems should account for wake-up current, active processing current, analog front-end demand, and any attached radio or sensor load. The MCU's low-power capability cannot compensate for peripherals that remain active, so disable unused blocks and external circuitry through the product's power-management design.
Assign the three operational amplifiers to low-noise analog paths only after checking input range, offset, bandwidth, stability, and output-drive limits in the manufacturer electrical characteristics. Keep sensitive analog traces away from switching nodes and high-current return paths. When the LCD, AES accelerator, timers, and analog amplifiers operate concurrently, validate the complete mixed-signal layout with signal-integrity and power-supply measurements rather than treating each peripheral in isolation.
合規資訊
RoHS and REACH status require confirmation for the exact ordering code through the manufacturer product documentation or a current material-compliance declaration.