EFM32TG840F8-QFN64 - 32MHz Low-Power MCU | Silicon Labs
料号： EFM32TG840F8-QFN64 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
EFM32TG840F8-QFN64 概述
An ARM Cortex-M3 microcontroller is a 32-bit embedded processor within the microcontroller and semiconductor hierarchy. It combines a processor core, memory, peripherals, and I/O in one integrated circuit, allowing compact systems to execute firmware and control sensors, communications, and actuators without a separate processor. Silicon Labs positions this device in the EFM32 Tiny Gecko family, emphasizing low-energy techniques and energy-saving modes.
The EFM32TG840F8-QFN64 operates at up to 32 MHz and includes 8 kB of Flash and 2 kB of RAM. Its 56 digital I/O pins provide substantial interface capacity for embedded control boards. The listed timer configuration includes two 16-bit timers, supporting periodic timing, input capture, output compare, and basic control-loop functions. The manufacturer and distributor results identify the device as an ARM Cortex-M3 Tiny Gecko MCU.
The 64-QFN package, identified in distributor results as 64-QFN measuring 9 x 9 mm, supports compact PCB layouts while exposing many device connections. The verified listings also describe a 2.5 V or 3.3 V device configuration. Because the supplied data does not include a complete electrical timing table, pin-level function map, or detailed power-consumption values, those parameters remain marked as data needed rather than inferred.
Typical applications include low-power sensor nodes, industrial monitoring equipment, connected embedded controls, compact consumer devices, and battery-operated systems. The MCU is suitable where a low-power 32-bit control platform and generous I/O count are more important than large onboard memory. Firmware memory and application complexity must be planned around the verified 8 kB Flash and 2 kB RAM limits.
For PCB implementation, verify the exposed-pad connection, decoupling requirements, oscillator connections, programming interface, and all 64 package assignments against the manufacturer datasheet before layout release. Confirm the exact supply, I/O, peripheral, and timing constraints during schematic review.
This page consolidates the verified manufacturer specifications, distributor listing details, sourcing links, and application-oriented engineering guidance for the EFM32TG840F8-QFN64 while explicitly identifying parameters that require confirmation from the datasheet.
直接替换替代料： EFM32TG840F8-QFN64 ——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： EFM32TG840F8-QFN64 （相同外形与封装尺寸） ——差异在于 Package, Series.
快速对比工具——选择替代料号进行并排对比：
EFM32TG840F8-QFN64T
✅ 直接替换📋 参考替代料（不在目录中）
EFM32TG840F8-D-QFN64
✅ 直接替换📋 参考替代料（不在目录中）
EFM32TG230F32-QFN64
✅ 直接替换📋 参考替代料（不在目录中）
EFM32G842F128-QFP64T
✅ 直接替换📋 参考替代料（不在目录中）
EFM32GG230F1024G-E-QFN64
✅ 直接替换✓ 有现货
$9.6 / 个
查看数据手册 →EFM32TG840F8-QFN64 最大额定值与电气特性
| Product Type | ARM Cortex-M3 microcontroller |
| Series | EFM32 Tiny Gecko |
| Maximum CPU Frequency | 32 MHz |
| CPU Architecture | ARM Cortex-M3, 32-bit RISC |
| Flash Memory | 8 kB |
| RAM | 2 kB |
| Digital I/O Pins | 56 |
| Timer Configuration | 2 x 16-bit timers |
| Supply Configuration | 2.5 V or 3.3 V |
| Supply Voltage Range | 1.85 V to 3.8 V |
| 封装 | 64-QFN (9 x 9 mm) |
| 安装类型 | Surface mount |
| Low-Power Features | Low-energy techniques, fast wake-up, energy-saving modes |
| Wake-Up Support | Fast wake-up from low-energy operating modes |
| Operating Family | Tiny Gecko |
| Program Memory Organization | 8K x 8 |
| RAM Organization | 2K x 8 |
EFM32TG840F8-QFN64 64-qfn (9 x 9 mm) 引脚配置指南
EFM32TG840F8-QFN64（64-qfn (9 x 9 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： EFM32TG840F8-QFN64.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EFM32TG840F8-QFN64 适用于 6 应用s: Low-Power Sensor Node, Industrial Monitoring Controller, Battery-Operated Wireless Sensor, Compact Consumer Control Module, Connected Measurement Device, IoT Sensor Gateway.
Low-Power Sensor Node
The EFM32TG840F8-QFN64 fits a low-power sensor node that periodically wakes to read an external sensor, processes the result, and returns to an energy-saving mode. Its verified 32 MHz ARM Cortex-M3 core provides control capability without a larger processor, while the Tiny Gecko platform is specifically described as using low-energy techniques and fast wake-up. The 56 digital I/O pins leave room for sensors, indicators, and control signals. Design the firmware around the verified 8 kB Flash and 2 kB RAM limits, and validate the actual sleep current and wake-up latency under the intended operating conditions.
推荐
Industrial Monitoring Controller
Use the EFM32TG840F8-QFN64 as a compact monitoring controller for equipment that must read multiple digital signals and perform periodic control actions. Its 56 digital I/O pins and two listed 16-bit timers provide a practical interface budget for discrete sensors, alarm inputs, relay-control outputs, and timing functions. The 32 MHz Cortex-M3 core can handle protocol and control tasks while the device operates from the verified 2.5 V or 3.3 V configuration. Confirm operating-temperature limits, transient immunity, grounding, and isolation requirements before applying it to industrial equipment.
推荐
Battery-Operated Wireless Sensor
The EFM32TG840F8-QFN64 is a candidate for a battery-operated wireless sensor when low-power behavior and fast wake-up are more important than large memory capacity. Its Tiny Gecko architecture is described by Silicon Labs as energy-focused, and the MCU includes 8 kB Flash and 2 kB RAM for compact firmware. A wireless sensor design should keep the radio powered only when needed and use the MCU's low-energy modes between measurements. The exact battery life and radio coexistence performance cannot be stated from the supplied data and must be measured in the final system.
推荐
Compact Consumer Control Module
The EFM32TG840F8-QFN64 can serve as the control MCU in a compact consumer accessory where numerous discrete I/O points and low idle consumption are useful. Its 56 digital I/O pins can support buttons, indicators, interlocks, and simple actuator-control lines, while the 32 MHz Cortex-M3 core leaves room for user-interface state machines and communication protocols. The 64-QFN 9 x 9 mm package supports dense layouts, but exposed-pad and assembly details must follow the manufacturer documentation. The limited 8 kB Flash and 2 kB RAM make careful firmware budgeting essential.
推荐
Connected Measurement Device
The EFM32TG840F8-QFN64 is suitable as the local control processor for a connected measurement device that gathers digital measurements and forwards status data through a host interface. Its 32 MHz ARM Cortex-M3 processing capability, 56 I/O pins, and low-power platform are useful for coordinating sensors, control outputs, and communications. The MCU's 2.5 V or 3.3 V operating configuration can simplify integration with low-voltage digital systems, provided the complete supply and I/O limits are checked. For analog precision, add a dedicated converter or front end rather than assuming unverified internal analog performance.
推荐
IoT Sensor Gateway
The EFM32TG840F8-QFN64 can be used in a small IoT sensor gateway when the application needs local control, multiple digital interfaces, and energy-aware operation. The Tiny Gecko low-power feature set and fast wake-up support suit systems that remain mostly idle, while the 56 digital I/O pins can support local status and configuration signals. Use the MCU to aggregate readings and manage local actions, then pair it with a dedicated network or wireless component when required. Confirm protocol memory requirements against the 8 kB Flash and 2 kB RAM budget before final protocol selection.
推荐
推荐产品汇总
工程参考数据： EFM32TG840F8-QFN64 ——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 | EFM32TG840F8-QFN64T | EFM32TG840F8-D-QFN64 | EFM32TG230F32-QFN64 | EFM32G842F128-QFP64T | EFM32GG230F1024G-E-QFN64 |
|---|---|---|---|---|---|---|
| Package | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | QFN-64 | QFP-64 | QFN-64 |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
关键差异点
- Compact 56-I/O MCU in a verified 64-QFN package （对比 EFM32G842F128-QFP64T)
- Low-power Tiny Gecko positioning with fast wake-up （对比 EFM32GG230F1024G-E-QFN64)
- Verified Cortex-M3 performance and resource baseline （对比 EFM32TG230F32-QFN64)
设计说明
Design the supply around the verified 1.85 V to 3.8 V device range and the listed 2.5 V or 3.3 V operating configuration. Confirm the exact core, I/O, and peripheral voltage limits in the manufacturer datasheet before selecting a regulator. Place the required bypass capacitors close to the supply and ground pins, and verify startup sequencing and maximum supply ramp conditions during schematic review.
Use the 64-QFN footprint and exposed-pad information from the manufacturer documentation rather than inferring the land pattern from the distributor package name. Confirm pin numbering, exposed-pad connectivity, solder-mask clearance, and thermal-via recommendations. The supplied data confirms the 64-QFN 9 x 9 mm package but does not provide a complete pin table, so schematic and layout sign-off must depend on the official pinout.
Do not treat the 8 kB Flash and 2 kB RAM values as expandable resources. Estimate code size, stack depth, buffers, and protocol libraries early in the design, and reserve memory for diagnostics and future updates. Also do not substitute another Tiny Gecko solely because it has a similar QFN package; compare memory, pinout, peripherals, supply limits, and software support first.
合规信息
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred from the manufacturer or distributor listings.
