EFM32TG842F8-QFP64 - 32MHz Cortex-M3 MCU | Silicon Labs
MPN: EFM32TG842F8-QFP64 ✓ Hoạt độngEFM32TG842F8-QFP64 Tóm tắt
A microcontroller is a programmable system-on-chip integrating a CPU core, memory, timers, communication peripherals, and I/O into one device. The EFM32 Tiny Gecko family combines an ARM Cortex-M3 processor with low-energy design techniques, fast wake-up behavior, and energy-saving modes. This places it within the hierarchy MCU, embedded processor, semiconductor, and energy-conscious embedded control.
The EFM32TG842F8-QFP64 includes 8 kB of Flash for program storage and 2 kB of SRAM for working memory. Its 53 digital I/O pins provide broad integration opportunities, while two 16-bit timers support timing, pulse-width, and periodic-control tasks. Verified distributor data also identifies the device as an LCD and AES MCU, indicating dedicated support for embedded display and security-oriented applications.
The 64-TQFP package provides 64 physical pins, enabling more peripheral and signal access than the 8 kB memory footprint alone might suggest. Because pin multiplexing determines which peripheral functions can be assigned simultaneously, designers should review the pin configuration tables before fixing a board layout. The 10 x 10 mm package is larger than common QFN packages but remains practical for industrial and consumer boards requiring broad lead-based connectivity.
Typical uses include low-power sensor nodes, compact industrial controllers, wearable and wellness equipment, LCD-driven user interfaces, and security-equipped embedded controls. The 32 MHz Cortex-M3 core provides more compute headroom than lower-clock general-purpose microcontrollers while the Tiny Gecko power-management features support duty-cycled operation.
The principal design constraint is memory sizing: 8 kB Flash and 2 kB RAM may be sufficient for small control loops but restrictive for protocol-heavy firmware, graphical interfaces, or extensive logging. Confirm the required code and data budget, peripheral pin mapping, and voltage tolerances before committing to this MCU.
This product data combines the official specification page, distributor listings, and verified cross-reference results with engineering-focused application, comparison, and design guidance. It also distinguishes confirmed drop-in alternatives from parts that cannot safely replace this exact 64-pin device.
Bộ thay thế dễ dàng lắp đặt cho EFM32TG842F8-QFP64 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
EFM32TG842F8-QFP64T
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Xem tài liệu →EFM32TG842F8-D-QFP64
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Xem tài liệu →EFM32TG842F8-QFP64 Tỷ lệ tối đa & tính chất điện
| Product Type | ARM Cortex-M3 Tiny Gecko microcontroller (MCU) |
| Core Processor | ARM Cortex-M3, 32-bit |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 8 kB (8K x 8) |
| RAM | 2 kB |
| Digital I/O Pins | 53 pins |
| Timer Configuration | 2 x 16-bit timers |
| Điện áp cung cấp hoạt động | 1.85 V to 3.8 V |
| Hộp | 64-TQFP (10 x 10 mm) |
| Total Package Pins | 64 pins |
| Kiểu lắp đặt | Surface mount |
| Programmable Peripheral I/O | Configurable peripheral I/O locations |
| Display Support | LCD MCU |
| Security Feature | AES MCU |
| Low-Power Features | Energy-saving modes and fast wake-up |
| Architecture | Tiny Gecko |
Hướng dẫn cấu hình chân EFM32TG842F8-QFP64 64 pins
Cấu hình chân cho EFM32TG842F8-QFP64 (64 pins gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho EFM32TG842F8-QFP64.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
EFM32TG842F8-QFP64 phù hợp cho 6 Áp dụngs: Low-Power Sensor Node, Industrial Control Module, LCD User Interface Controller, Wearable Wellness Device, Compact Security Controller, LED and Indicator Control.
Low-Power Sensor Node
The EFM32TG842F8-QFP64 fits a compact sensor node because its Tiny Gecko platform emphasizes low-energy techniques, fast wake-up behavior, and energy-saving modes. Its 53 digital I/O pins leave substantial pin budget for sensors, interrupt lines, status indicators, and actuators, while the 32 MHz ARM Cortex-M3 core can sample and process data without a high-clock MCU. The device operates from 1.85 V to 3.8 V, allowing integration with low-voltage sensor rails. Because memory is limited to 8 kB Flash and 2 kB RAM, the firmware should use compact drivers and carefully scheduled acquisition rather than large buffering. Duty-cycling is especially important when the node spends long periods asleep.
Được đề xuất
Industrial Control Module
The EFM32TG842F8-QFP64 is suitable for distributed industrial control when many discrete signal connections would otherwise consume board space. Its 53 digital I/O pins support digital sensors, relay-control inputs, machine-status lines, and communication interfaces, while two 16-bit timers provide dedicated timing resources for periodic sampling or output generation. The 32 MHz Cortex-M3 core provides deterministic responsiveness, and the 64-TQFP package exposes more pins than a compact QFN device. Its 1.85 V to 3.8 V operating range must be reconciled with the controller's industrial supply and I/O levels. Production designs should also verify isolation, transient protection, and functional-safety requirements at the system level.
Được đề xuất
LCD User Interface Controller
The EFM32TG842F8-QFP64 can control an LCD-oriented user interface because verified distributor data identifies it as an LCD MCU and the manufacturer highlights configurable peripheral I/O locations. With 53 digital I/O pins, the controller can support display segments or an external parallel interface alongside buttons, indicators, and sensors. The 32 MHz Cortex-M3 core is appropriate for basic menu state machines and input handling, while the 64-TQFP package makes the pin assignments accessible. The main constraint is memory: 8 kB Flash and 2 kB RAM require a simple graphics strategy, limited localization, and compact fonts. Display timing, segment count, and simultaneous peripheral use must be checked against the manufacturer pin table.
Được đề xuất
Wearable Wellness Device
The EFM32TG842F8-QFP64 supports a wearable wellness device when the design prioritizes low power, fast wake-up, and a large direct GPIO count rather than high storage capacity. Its Tiny Gecko energy-saving features are relevant for continuously worn devices that spend most of their time in a low-duty-cycle state, and its 1.85 V minimum supply can simplify operation near a low-voltage battery rail. The 53 digital I/O pins may connect motion, temperature, capacitive-touch, or indicator circuitry. Nevertheless, 8 kB Flash and 2 kB RAM constrain Bluetooth or complex sensor-hub firmware, so this MCU is most appropriate when processing stays local and compact. Battery capacity and peak radio-current effects must be evaluated separately.
Được đề xuất
Compact Security Controller
The EFM32TG842F8-QFP64 can serve as a compact security-oriented controller because verified distributor data identifies it as an AES MCU. The 32 MHz Cortex-M3 core is suitable for executing authentication, key-handling, or peripheral-access routines when the workload is modest, while the 53 digital I/O pins provide access to sensors, secure elements, communication modules, and status LEDs. The 1.85 V to 3.8 V supply range supports low-voltage embedded security hardware. Engineers should treat the AES designation as a feature marker rather than a complete security architecture, verify cryptographic modes and implementation details in the manufacturer documentation, and keep secrets outside the limited 8 kB Flash region where possible.
Được đề xuất
LED and Indicator Control
The EFM32TG842F8-QFP64 is appropriate for multi-LED indication and status-control boards because 53 digital I/O pins provide ample parallel output capacity and the 32 MHz core can implement lighting patterns or fault codes. In a 64-TQFP package, the device can combine display or indicator outputs with button inputs and communication signals without an immediate I/O-expander requirement. The 1.85 V to 3.8 V operating range also supports low-voltage LED-driver control when the MCU does not directly supply the LED current. External transistors or a constant-current driver remain necessary where lighting current or polarity differs from the MCU's specifications. Firmware size must remain within the 8 kB Flash limit, so table-driven effects are preferable to bulky graphics code.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EFM32TG842F8-QFP64 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EFM32TG842F8-QFP64T | EFM32TG842F8-D-QFP64 |
|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 64-TQFP (10 x 10 mm) | 64-TQFP (10 x 10 mm) - same | 64-TQFP (10 x 10 mm) - same |
| Core | ARM Cortex-M3 | ARM Cortex-M3 | Tiny Gecko MCU; exact core not stated in verified result |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz |
| Operating Supply Voltage | 1.85 V to 3.8 V | 1.85 V to 3.8 V | 1.98 V to 3.8 V |
| Ordering/Packaging Suffix | QFP64 | QFP64T tape-and-reel ordering variant | D suffix |
Bảo phân biệt quan trọng
- Broad direct GPIO availability (vsEFM32TG842F8-QFP64T)
- Lower minimum operating voltage than the D variant (vsEFM32TG842F8-D-QFP64)
- Identical verified core and memory headline for tape-and-reel production (vsEFM32TG842F8-QFP64T)
Ghi chú thiết kế
Do not assume that the EFM32TG842F8-QFP64T and EFM32TG842F8-D-QFP64 listings are unconditional substitutions. The verified data confirms the same 64-TQFP 10 x 10 mm family, but the D variant starts at 1.98 V rather than 1.85 V. Check the board's lowest supply condition, all pin assignments, peripheral multiplexing, and manufacturer ordering information before approving a drop-in change.
Design the supply for the MCU's full 1.85 V to 3.8 V operating range and calculate worst-case brownout behavior at the minimum rail. The manufacturer's low-power modes can reduce average consumption, but wake-up peripherals, active GPIO states, and external sensor loads determine the actual battery life. Use the manufacturer operating-current tables under the intended clock and temperature; do not substitute typical values for worst-case supply-current design.
Route the 64-TQFP with adequate clearance for its 10 x 10 mm body and fine-pitch leads. Decoupling capacitors should be placed at the supply and ground pins according to the manufacturer layout guidance, with short return paths and no long stubs. Because configurable peripheral multiplexing can limit simultaneous functions, freeze pin assignments in firmware only after checking the complete package pin table and board-level requirements.
Separate sensitive analog or sensor inputs from fast-switching digital nets and programming/debug signals, even though the verified listing does not identify an exposed-pad thermal arrangement. Use a continuous ground reference, keep external oscillators and timing components close to their assigned pins, and review unused-pin requirements in the datasheet. Proper grounding matters as much as package placement in a 53-I/O design.
Thông tin tuân thủ
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Compliance values are therefore marked unknown rather than inferred.
