EFM32G230F64-QFN64 - 32MHz Cortex-M3 64KB MCU | Silicon Labs
MPN: EFM32G230F64-QFN64 ✓ ActiveEFM32G230F64-QFN64 Overview
A microcontroller is a programmable integrated circuit containing a processor core, memory, peripherals, and I/O interfaces. In the product hierarchy, the EFM32G230F64-QFN64 belongs to the EFM32 Gecko family of 32-bit embedded processors, based on the ARM Cortex-M3 architecture. It is intended for use in industrial, consumer, medical, and other battery-powered or energy-constrained electronic products.
Key features include a 32 MHz ARM Cortex-M3 processor, 64 kB Flash, 16 kB RAM, 56 digital I/O pins, and three 16-bit timers. The EFM32G platform also provides low-power operating techniques, fast wake-up behavior, energy-saving modes, and autonomous peripherals. According to the Silicon Labs EFM32G datasheet, devices in the family can consume as little as 0.6 microamps in Stop mode and 180 microamps per megahertz in Run mode.
The EFM32G230F64-QFN64 integrates substantial peripheral functionality into a compact package, reducing the need for external components in connected embedded designs. Its 56 digital I/O pins provide interface capacity for sensors, actuators, communications, human-interface elements, and control signals. The three 16-bit timers support timing, counting, pulse-width modulation, and periodic event generation, while the integrated analog and communication resources are useful for monitoring, control, and energy-sensitive connected products.
Typical applications include low-power sensor nodes, industrial monitoring equipment, medical instrumentation, consumer accessories, battery-powered controls, and connected embedded systems. The device is particularly suitable when a compact 32-bit control platform is needed without the memory footprint of a larger microcontroller.
PCB design should follow Silicon Labs hardware-design guidance, including careful exposed-pad thermal management, supply decoupling, and validation of the final power and ground layout. Because the supplied product information does not include a complete manufacturer pinout table, the complete 64-pin mapping cannot be reproduced safely without verification against the official datasheet.
This page consolidates verified manufacturer and distributor information, distinguishes the core EFM32G230F64-QFN64 from its tape-and-reel ordering suffix, and provides engineering-oriented application and comparison guidance rather than repeating only catalog metadata.
Drop-in alternatives for EFM32G230F64-QFN64 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
EFM32G230F64-QFN64T
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32G230F64-QFN64 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Processor Core | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 64 kB (64K x 8) |
| RAM Memory | 16 kB |
| Digital I/O Pins | 56 |
| Timer Count | 3 x 16-bit timers |
| Supply Voltage Range | 1.98 V to 3.8 V |
| Stop Mode Current | 0.6 microamps |
| Run Mode Current | 180 microamps/MHz |
| Package | 64-QFN (9 x 9 mm) |
| Package Type | QFN |
| Mounting Type | Surface mount |
| Oscillator Type | External |
| Security Feature | AES |
| Series | EFM32 Gecko |
| Low-Power Feature | Fast wake-up and energy-saving modes |
EFM32G230F64-QFN64 qfn Pin Configuration Guide
Pin configuration for EFM32G230F64-QFN64 (qfn package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EFM32G230F64-QFN64.
Refer to the datasheet for full pin configuration.
Typical Applications
EFM32G230F64-QFN64 is suitable for 6 applications: Battery-Powered Sensor Nodes, Industrial Monitoring and Control, Medical and Diagnostic Devices, Smart Home and Consumer Controls, Communication and Network Interface Equipment, LED Lighting and Display Control.
Battery-Powered Sensor Nodes
The EFM32G230F64-QFN64 fits battery-powered sensor nodes because the EFM32G platform supports energy-saving modes and fast wake-up, with family Stop-mode consumption reported as low as 0.6 microamps. Its 32 MHz Cortex-M3 core can process measurements and handle control logic, while 64 kB Flash and 16 kB RAM support embedded firmware, buffers, and protocol stacks. The 56 digital I/O pins provide flexible connections to sensors and indicators. A practical design places the MCU near the sensing circuitry, uses a low-leakage regulator, and keeps radio or communications circuitry on switched rails. Real battery life depends on sampling interval, sensor current, wake duration, and firmware behavior rather than Stop-mode current alone.
Recommended
Industrial Monitoring and Control
The EFM32G230F64-QFN64 is appropriate for compact industrial monitoring equipment because it combines a 32 MHz ARM Cortex-M3 processor, 64 kB Flash, 16 kB RAM, 56 digital I/O pins, and three 16-bit timers in a 9 x 9 mm QFN. Timers can organize periodic sampling and actuator timing, while the I/O count supports digital sensors, relays, status indicators, and communications. The 1.98 V to 3.8 V operating range suits regulated 3.3 V systems. For production equipment, designers should validate brownout behavior, isolation requirements, surge exposure, thermal conditions, and the behavior of connected field-bus transceivers rather than treating the MCU package as a complete industrial interface.
Recommended
Medical and Diagnostic Devices
The EFM32G230F64-QFN64 can serve as the control core in compact medical or diagnostic instruments where a 32-bit processor, local memory, and numerous digital I/O are needed without a large package. Its 64 kB Flash supports embedded application code, 16 kB RAM supports working buffers, and the three 16-bit timers can support sampling and timing functions. The low-power architecture is useful in portable instruments that spend substantial time between measurements. Medical use nevertheless requires application-specific validation, including electrical safety, patient isolation, firmware risk controls, calibration, and electromagnetic compatibility. The MCU and its 3.3 V supply must be separated appropriately from patient-connected circuitry by the system architecture.
Recommended
Smart Home and Consumer Controls
The EFM32G230F64-QFN64 supports smart-home and consumer control products that need an always-available control platform but must manage energy carefully. Its 56 digital I/O pins can connect switches, indicators, sensors, and output drivers, while the 32 MHz ARM Cortex-M3 core supports responsive firmware and communications management. The compact 64-QFN package also leaves board area for radio, sensing, or power-conversion circuitry. Low-power design should exploit the family Stop mode and fast wake-up capability, but firmware must prevent unintended peripheral activity during sleep. For wireless products, the MCU can manage a companion radio, although radio certification, antenna design, and coexistence testing remain separate engineering tasks.
Recommended
Communication and Network Interface Equipment
The EFM32G230F64-QFN64 is suitable for distributed communication equipment where local protocol handling, timing, and low-power operation are required. The 32 MHz Cortex-M3 core and 16 kB RAM can support lightweight serial protocols and buffering, while the 56 I/O pins offer extensive interface capacity. Its EFM32G low-power platform is valuable in endpoint devices that spend most of their time idle. A practical implementation can place the MCU alongside a UART, CAN, Ethernet, or wireless companion and use its timers for frame timing and watchdog management. The designer must verify peripheral electrical limits, timing margins, bus protection, and firmware portability; having a similar package alone does not establish protocol or pin compatibility.
Recommended
LED Lighting and Display Control
The EFM32G230F64-QFN64 can control LED lighting or compact display systems because its three 16-bit timers support precise periodic timing and PWM generation, while 56 digital I/O pins provide outputs for drivers, buttons, and status indicators. The 32 MHz Cortex-M3 core can coordinate dimming sequences, user input, and communications in a compact control board. Its low-power modes also help reduce consumption in lighting controllers that remain active only when settings change. Practical implementations should size timer and PWM timing for the intended LED driver, provide adequate decoupling, account for driver startup transient current, and keep high-current LED paths separate from sensitive MCU routing. The MCU must never drive high-power LED strings directly.
Recommended
Recommended Products Summary
Engineering reference data for EFM32G230F64-QFN64 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EFM32G230F64-QFN64T |
|---|---|---|
| Package | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) - same |
| Brand | Silicon Labs | Silicon Labs - same |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz | 32 MHz |
| Flash Memory | 64 kB | 64 kB |
| RAM Memory | 16 kB | 16 kB |
| Digital I/O Pins | 56 | 56 |
| Timer Configuration | 3 x 16-bit timers | 3 x 16-bit timers |
| Ordering Format | EFM32G230F64-QFN64 | Tape-and-reel ordering suffix |
Key Differentiators
- Same-family ordering alternative (vs EFM32G230F64-QFN64T)
- Low-power platform for embedded products (vs EFM32G230F64-QFN64T)
- Compact integration (vs EFM32G230F64-QFN64T)
Design Notes
Use the official Silicon Labs EFM32G230 package drawing and AN0002 EFM32 Hardware Design Considerations before releasing the PCB. Place the MCU's exposed-pad thermal connection directly over a continuous ground plane, keep high-current switching paths away from the supply and ground pins, and route sensitive inputs away from digital return currents. Validate the final layout against the manufacturer's recommended decoupling and exposed-pad geometry rather than relying on generic QFN layout conventions.
The EFM32G230F64-QFN64 operates in the verified 1.98 V to 3.8 V supply range, so the regulator and bypass network must remain within that interval under transient conditions. Place the required input capacitor adjacent to the supply pins, provide a low-impedance ground return, and check the source impedance across the MCU's active and low-power operating modes. Estimated power dissipation must be evaluated from actual rail voltage, current, and activity factor; the supplied data does not provide a complete worst-case current table.
Do not select EFM32G230F64-QFN64T solely because the package suffix looks interchangeable. Confirm that the source is the intended silicon revision, the reel orientation and pin-1 marking match assembly expectations, and the full orderable MPN has the required 64-QFN footprint. Also verify boot, debug, peripheral, and firmware behavior. The supplied revision notice states that pin-compatible replacements exist for earlier EFM32G devices, but it does not authorize firmware interchangeability without reviewing revision-specific errata.
Separate analog-sensitive inputs, communication interfaces, and switching-power regions around the compact 9 x 9 mm package. Keep the exposed pad free of accidental solder or conformal-coating contamination, maintain clearance required by the package drawing, and provide thermal copper wherever the board stack-up permits. If the MCU sits near an RF, Ethernet, or high-speed serial section, review return-current paths and ground-plane continuity to prevent the 32 MHz digital activity from coupling into sensitive measurements.
Compliance Information
The supplied manufacturer and distributor excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status; these fields therefore remain unknown.
