EFM32TG822F16-QFP48 - 32MHz Cortex-M3 MCU | Silicon Labs
N.º de pieza: EFM32TG822F16-QFP48 ✓ ActivoEFM32TG822F16-QFP48 Descripción general
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The EFM32TG822F16-QFP48 belongs to the Tiny Gecko family within Silicon Labs' EFM32 low-power MCU portfolio. Its ARM Cortex-M3 core provides 32-bit processing, while its peripheral set supports energy-sensitive, battery-operated, industrial, and connected embedded products.
The device operates at up to 32 MHz and includes 16 kB of Flash for firmware, 4 kB of RAM for working data, and 37 digital I/O pins. Silicon Labs identifies two 16-bit timers among the integrated resources. These characteristics make the microcontroller suitable for control loops, human-interface devices, sensor nodes, portable instruments, and compact automation products that need deterministic peripheral access without a large external memory footprint.
The Tiny Gecko platform emphasizes energy efficiency through low-energy operating techniques, rapid wake-up from energy-saving modes, and multiple sleep-oriented modes. These features help reduce the energy required between user interactions or sensor measurements. The Cortex-M3 processor and configurable peripheral architecture also allow the same device family to address battery-powered consumer products as well as embedded industrial equipment.
Typical uses include low-power sensor hubs, building-control nodes, compact motor-control interfaces, handheld measurement products, wearable accessories, and battery-operated security devices. The 48-pin TQFP footprint exposes substantially more I/O than smaller leadless packages, making it useful when a design needs external displays, buttons, communications transceivers, analog front ends, or multiple digital peripherals.
Designers should select capacitors, oscillator components, and I/O levels according to the manufacturer datasheet, and should preserve the recommended power and decoupling layout for reliable operation. Firmware development requires a Cortex-M3-compatible toolchain and the appropriate Silicon Labs configuration and debug environment. Before production, verify the selected flash variant, operating-temperature grade, peripheral availability, and package pin assignments against the exact ordering information.
This product page consolidates the principal specifications, verified manufacturer and distributor references, drop-in candidates, application guidance, and design cautions for EFM32TG822F16-QFP48. It is intended to accelerate engineering evaluation while making the differences among same-family Silicon Labs options easier to evaluate.
Alternativas directas para EFM32TG822F16-QFP48 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
EFM32TG822F16-D-QFP48
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EFM32TG822F32-QFP48T
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EFM32TG822F16QFP48
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EFM32TG822F16-QFP48 Valores máximos y características eléctricas
| Product Type | ARM Cortex-M3 32-bit Microcontroller |
| Series | EFM32 Tiny Gecko |
| Maximum CPU Frequency | 32 MHz |
| Processor Core | Single-core ARM Cortex-M3 |
| Flash Memory | 16 kB |
| Flash Organization | 16K x 8 bits |
| RAM | 4 kB |
| Digital I/O Pins | 37 pins |
| Timer Count | 2 timers |
| Timer Resolution | 16-bit |
| Tensión de alimentación | 2.5 V to 3.3 V |
| Encapsulado | 48-pin TQFP (7 mm x 7 mm) |
| Tipo de montaje | Surface mount |
| Low-Power Features | Energy-saving modes and fast wake-up |
Guía de configuración de pines de EFM32TG822F16-QFP48 48-pin tqfp (7 mm x 7 mm)
Configuración de pines para EFM32TG822F16-QFP48 (encapsulado 48-pin tqfp (7 mm x 7 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para EFM32TG822F16-QFP48.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
EFM32TG822F16-QFP48 es adecuado para 6 aplicacións: Battery-Powered Sensor Hub, Compact Industrial Control Module, Handheld Measurement Instrument, Battery-Operated Security Sensor, Human-Machine Interface Controller, Building Automation Node.
Battery-Powered Sensor Hub
The EFM32TG822F16-QFP48 fits a battery-operated sensor hub because its Tiny Gecko architecture combines a 32 MHz ARM Cortex-M3 core with energy-saving modes and fast wake-up behavior. The 4 kB RAM can hold sampled sensor state and short communication buffers, while 16 kB of Flash is appropriate for a compact acquisition and control application. Thirty-seven digital I/O pins also provide flexibility for sensor-enable lines, interrupt inputs, status indicators, and external interfaces. Design the duty cycle around the system sleep states because battery life ultimately depends on wake frequency, sensor standby current, and radio activity rather than CPU frequency alone.
Recomendado
Compact Industrial Control Module
The EFM32TG822F16-QFP48 is appropriate for a compact industrial control module that combines local sensing, digital outputs, and human interaction. Its 37 digital I/O pins can reduce the need for external I/O expanders, while two 16-bit timers support timing, pulse measurement, or periodic control functions. The 32 MHz Cortex-M3 core provides responsive task scheduling, and the 7 mm by 7 mm TQFP package remains serviceable for conventional production inspection. A 2.5 V to 3.3 V supply plan should be paired with local regulation, surge protection, and proper bypass placement to prevent industrial transients from affecting the controller.
Recomendado
Handheld Measurement Instrument
In a handheld measurement instrument, the EFM32TG822F16-QFP48 can manage display controls, buttons, sensor selection, data processing, and low-power operation within one compact package. The 37 available digital I/O pins are useful for segment displays, matrix keys, status LEDs, and peripheral control, while 4 kB of RAM supports short working buffers. Its fast wake-up behavior can improve responsiveness when the user switches the instrument out of standby. Firmware should avoid relying on maximum CPU speed as the sole low-power strategy; instead, disable unused peripherals, use the Tiny Gecko sleep modes, and keep analog measurement circuitry powered only when needed.
Recomendado
Battery-Operated Security Sensor
The EFM32TG822F16-QFP48 can serve as the controller for a battery-operated door, motion, or environmental sensor. Fast wake-up permits the MCU to react quickly to an interrupt from a detection circuit without remaining continuously active, while energy-saving modes reduce consumption between events. Its 37 digital I/O pins allow connection of motion outputs, magnetic switches, tamper detection, LEDs, and a low-power communications module. The 16 kB Flash footprint is adequate for compact event handling and protocol code, although a security product must still implement secure boot, authenticated updates, key protection, and appropriate physical attack resistance in its system design.
Recomendado
Human-Machine Interface Controller
The EFM32TG822F16-QFP48 is well suited to human-machine interface controllers requiring numerous digital signals and modest embedded code capacity. Thirty-seven I/O pins can support displays, buttons, indicator lamps, encoders, and communication transceivers without immediately exhausting package pins. The 32 MHz ARM Cortex-M3 core handles interface state machines and short control tasks, while the two 16-bit timers can assist with periodic display updates, buzzer timing, or input debouncing. A TQFP package also remains visually inspectable after soldering. Validate display timing, bus loading, and signal levels against the selected peripheral implementation before finalizing the board layout.
Recomendado
Building Automation Node
The EFM32TG822F16-QFP48 can be used in a building-automation node that monitors switches or sensors and communicates status over a low-power network. Energy-saving modes and rapid wake-up suit distributed endpoints that remain idle for long intervals, while 37 digital I/O pins support multiple inputs and discrete outputs. The device's local 16 kB Flash stores application firmware, and its 4 kB RAM accommodates short protocol and sensor buffers. During hardware design, account for relay or valve transients, long cable-connected inputs, and the need for robust grounding. Use the manufacturer's GPIO limits and recommended input conditioning instead of assuming every 3.3 V digital signal is directly suitable.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para EFM32TG822F16-QFP48 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | EFM32TG822F16-D-QFP48 | EFM32TG822F32-QFP48T | EFM32TG822F16QFP48 |
|---|---|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Flash Memory | 16 kB | 16 kB | 32 kB | 16 kB |
| Low-Energy Features | Energy-saving modes and fast wake-up | Tiny Gecko low-power family | Tiny Gecko low-power family | Tiny Gecko low-power family |
Diferenciadores clave
- Matches the documented 2.5 V to 3.3 V supply configuration (frente a EFM32TG822F16-D-QFP48)
- Provides a 16 kB Flash configuration for compact firmware (frente a EFM32TG822F32-QFP48T)
- Uses the current hyphenated manufacturer ordering format (frente a EFM32TG822F16QFP48)
Notas de diseño
Keep the main supply within the EFM32TG822F16-QFP48 operating range of 2.5 V to 3.3 V and place the required bypass capacitors close to their associated power and ground pins. Sequence any external sensor, radio, or analog circuit so that peripheral inputs remain within their electrical limits during startup and shutdown. For battery designs, calculate average current from sleep current, wake duration, radio activity, and sensor duty cycle rather than from the 32 MHz maximum CPU frequency.
Use the manufacturer package drawing and pin-description table to route the 48-pin TQFP footprint. Keep sensitive analog and communication paths away from fast switching nodes, provide a continuous ground reference where practical, and avoid long traces beneath noisy peripherals. If the board includes an oscillator, sensor interface, or communications transceiver, follow the exact reference layout and grounding arrangement recommended in the manufacturer documentation for that peripheral combination.
Do not assume that EFM32TG822F16-D-QFP48, EFM32TG822F32-QFP48T, or the legacy EFM32TG822F16QFP48 code is interchangeable without checking the ordering suffix, flash capacity, temperature grade, supply limits, and shipping format. The target contains 16 kB of Flash, while the F32 member contains 32 kB. Firmware configuration, boot behavior, and device identification can also vary by family revision, so validate the exact production part against the manufacturer documentation.
Información de cumplimiento
The manufacturer product and distributor snippets do not state the requested compliance or material-status attributes. Confirm the current declarations on the exact Silicon Labs product page and the applicable manufacturing documentation.
