EFM32TG822F8-QFP48 - 32MHz Cortex-M3 MCU | Silicon Labs
MPN： EFM32TG822F8-QFP48 ✗ 停產EFM32TG822F8-QFP48 概覽
A microcontroller is a programmable integrated circuit that combines a processor core, memory, digital I/O, timers, and communication peripherals in one device. The EFM32TG822F8 belongs to the Tiny Gecko family and sits within the hierarchy of ARM Cortex-M3 microcontroller, embedded processor, and integrated semiconductor. Its 32 MHz processing rate supports responsive control logic while its low-power design targets battery-operated and energy-sensitive equipment.
The verified feature set includes an ARM Cortex-M3 core, operation up to 32 MHz, 8 kB Flash, 2 kB RAM, 37 digital I/O pins, and two 16-bit timers. The supplied operating range is 1.85 V to 3.8 V, with a temperature range of -40 °C to 85 °C. These figures make the device suitable for low-voltage embedded products, sensor nodes, portable instruments, and compact industrial control modules.
The EFM32TG822F8-QFP48 is identified as a surface-mount 48-TQFP device. The manufacturer product page describes a low-power platform with innovative low-energy techniques, fast wake-up times, and energy-saving modes. Those characteristics distinguish it from general-purpose microcontrollers focused only on processing throughput: the design emphasizes both control capability and energy efficiency in embedded systems.
Typical applications include low-power sensor interfaces, portable measurement equipment, small motor-control systems, battery-powered instruments, and embedded IoT nodes. Its 37 digital I/O pins provide substantial external connectivity for sensors, indicators, switches, and actuators, while the two timers can support periodic measurement, timing, or basic control functions. Firmware selection should confirm the required peripheral set before design release.
Designers should use the manufacturer datasheet for the complete pin map, electrical limits, peripheral availability, memory map, and recommended decoupling. Because the verified sources identify a 48-pin package but do not provide a complete pin table, pin-level claims should not be inferred. The 1.85 V to 3.8 V supply range also requires regulators and bypass networks that remain valid across the intended operating temperature range.
This product page consolidates the verified manufacturer description, distributor specifications, package data, sourcing information, and application guidance. It also separates confirmed parameters from unavailable details, helping engineers compare the MCU with alternatives without treating unverified assumptions as drop-in compatibility.
直接替換替代品，適用於 EFM32TG822F8-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： EFM32TG822F8-QFP48 （相同外形與佔位） — 差異在於 Flash Memory, Low-Power Features, Maximum CPU Frequency, Package, Product Type.
此產品無可直接替換的替代品。
申請替代品EFM32TG822F8-QFP48 最大額定值與電氣特性
| Processor Core | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz |
| Architecture | 32-bit RISC |
| Flash Memory | 8 kB |
| RAM | 2 kB |
| Digital I/O Pins | 37 pins |
| Timers | 2 x 16-bit timers |
| Supply Voltage Range | 1.85 V to 3.8 V |
| 工作溫度範圍 | -40 °C to 85 °C |
| 封裝 | 48-TQFP (7 x 7 mm) |
| 安裝類型 | Surface mount |
| Series | Tiny Gecko |
| Product Type | ARM Cortex-M3 microcontroller |
| Low-Power Features | Fast wake-up times and energy-saving modes |
| Core Count | Single-core |
| Flash Organization | 8K x 8 |
| Nominal Supply | 2.5 V / 3.3 V |
| Package Pin Count | 48 pins |
EFM32TG822F8-QFP48 48 pins 腳位配置指南
EFM32TG822F8-QFP48（48 pins 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-QFP48.
請參閱 資料表 以查看完整腳位配置。
典型應用
EFM32TG822F8-QFP48 適用於 6 應用s: Low-Power Sensor Node, Portable Measurement Instrument, Battery-Powered Embedded Control, Compact Industrial Control Module, IoT Edge Device, Basic Motor and Actuator Control.
Low-Power Sensor Node
The EFM32TG822F8-QFP48 fits compact sensor nodes that need low-voltage operation, modest firmware storage, and numerous digital inputs. Its verified 1.85 V to 3.8 V supply range supports energy-conscious designs, while the 32 MHz ARM Cortex-M3 core provides responsive handling of sensor sampling and local control logic. The 37 digital I/O pins can connect switches, indicators, and digital sensors. Its 8 kB Flash and 2 kB RAM are suitable only for focused applications, so firmware should avoid unnecessary protocol and buffering features.
推薦
Portable Measurement Instrument
The EFM32TG822F8-QFP48 is suitable for portable instruments where a small MCU package, local timers, and low-energy operation help control displays, switches, and measurement front ends. Its two 16-bit timers can organize periodic sampling or timing tasks, while the 32 MHz core handles straightforward signal acquisition and control. The -40 °C to 85 °C range supports ordinary indoor and industrial enclosure conditions. With only 8 kB Flash and 2 kB RAM, the instrument should use a compact application architecture and avoid large local data buffers.
推薦
Battery-Powered Embedded Control
The EFM32TG822F8-QFP48 is a practical choice for battery-powered embedded controllers because Silicon Labs describes fast wake-up behavior and energy-saving modes as core platform features. The 32 MHz Cortex-M3 core allows the MCU to wake, perform control work, and return to a low-energy state without requiring a high-performance processor continuously active. The 1.85 V to 3.8 V operating range also gives designers flexibility with low-voltage power trees. Actual battery life must be validated against the selected sleep mode, GPIO retention behavior, analog activity, and firmware execution profile.
推薦
Compact Industrial Control Module
The EFM32TG822F8-QFP48 can support compact industrial control modules when the system requires deterministic microcontroller timing, low-voltage operation, and a moderate number of digital signals. Its two 16-bit timers provide dedicated timing resources, while 37 digital I/O pins can be allocated to status indicators, interlocks, relays, and discrete sensors. The verified -40 °C to 85 °C range is suitable for many industrial environments, but the final design should verify EMC, isolation, transient protection, and long-term component availability. Firmware capacity is limited by 8 kB Flash, favoring tightly scoped control logic.
推薦
IoT Edge Device
The EFM32TG822F8-QFP48 can serve as the local controller in a small IoT edge device that gathers simple sensor states and controls local outputs. The 32-bit Cortex-M3 core handles basic protocol framing and control tasks, while the low-power platform helps reduce energy use during idle periods. A communications coprocessor or radio can handle higher-throughput network traffic if the 8 kB Flash and 2 kB RAM limits are reached. The 37 digital I/O pins are useful for status LEDs, user inputs, and discrete peripheral connections.
推薦
Basic Motor and Actuator Control
The EFM32TG822F8-QFP48 is appropriate for small actuator-control tasks where timing inputs, discrete outputs, and low standby power matter more than large flash storage. The two 16-bit timers can support repeatable control intervals, while the 32 MHz core can coordinate motor-enable logic, limit sensors, and simple feedback sequences. The MCU should not be assumed to directly drive high-current motors; external transistor or driver circuitry is required. Validate stall current, inductive transients, thermal margin, and protection components during the mechanical design.
推薦
推薦產品摘要
工程參考資料，適用於 EFM32TG822F8-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 |
|---|---|
| Package | 48-TQFP (7 x 7 mm) |
| Brand | Silicon Labs |
| Processor Core | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 8 kB |
| RAM | 2 kB |
| Digital I/O Pins | 37 pins |
| Timers | 2 x 16-bit timers |
| Supply Voltage Range | 1.85 V to 3.8 V |
| Operating Temperature Range | -40 °C to 85 °C |
主要差異化特點
- Low-power-oriented Tiny Gecko platform (對比EFM32TG222F32-QFP48)
- Compact memory footprint (對比EFM32TG222F32-QFP48)
- Directly identified 32-bit Cortex-M3 architecture (對比EFM32TG222F32-QFP48)
設計說明
Design the supply for the verified 1.85 V to 3.8 V operating range, including the voltage required during startup and maximum specified load. Place the required bypass capacitors close to the MCU supply pins according to the Silicon Labs hardware guidelines, and keep analog and digital return-current paths controlled. Because the supplied data does not state exact decoupling values, use the manufacturer datasheet rather than copying a generic capacitor network.
Reserve the 48-TQFP footprint and preserve pin-1 orientation exactly as shown in the official package drawing. The verified sources confirm 48-TQFP (7 x 7 mm) but do not provide the full pin table, so do not route board connections from secondary listings alone. Confirm every power, ground, reset, debug, and GPIO assignment against the current Silicon Labs datasheet before fabrication.
Do not assume that a 48-TQFP package makes a candidate MCU a drop-in replacement. Firmware, memory size, peripheral mapping, reset behavior, debug access, and electrical limits must all match the original design. In particular, EFM32TG222F32-QFP48 is listed with 32 kB Flash rather than the target's 8 kB, so it should not be treated as an interchangeable substitute without a complete engineering review.
合規資訊
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not_applicable only as a field classification because no automotive qualification is provided; it should not be interpreted as an independent compliance claim.
