EFM32G200F64G-E-QFN32 - 32MHz Cortex-M3 MCU 64KB Flash | Silicon Labs
MPN: EFM32G200F64G-E-QFN32 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.78 | $278.00 |
| 500 | $2.31 | $1,155.00 |
| 1,000 | $1.95 | $1,950.00 |
EFM32G200F64G-E-QFN32 Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripherals on one die. The Cortex-M3 architecture places MCUs within the broader hierarchy of 32-bit microcontrollers -> ARM Cortex-M family -> ARM Cortex-M3 -> embedded processors -> semiconductors. The EFM32G product line targets low-energy applications such as battery-powered IoT nodes, wearables, and sensor interfaces where typical Cortex-M3 microcontrollers would consume far more power.
Key features include 24 digital I/O pins, 2x 16-bit timers, an integrated AES peripheral (No AES variant per the Mouser listing), and energy-saving modes that draw as little as single-digit microamps in Stop mode. The device supports peripheral reflex system (PRS) and low-energy peripherals that allow autonomous operation without waking the CPU. Independent hardware AES is excluded from this -G part variant. The 32-QFN (6x6) package is compact, has a low thermal resistance thanks to the exposed pad, and suits space-constrained PCB layouts.
Typical applications include battery-operated IoT sensor nodes, smart home wireless or wired bridges, wearable health monitoring patches, industrial sensor endpoints, and remote controls. Compared with discrete 8-bit MCU solutions, the EFM32G200F64G-E-QFN32 delivers 32-bit performance while still operating in the microamp current envelope demanded by multi-year battery life targets.
When designing with this part, route decoupling capacitors directly to the exposed pad which is the device's ground return. Use the energy modes (EM0-EM4) aggressively - peripherals run in EM2 while the CPU sleeps, which is the key to the Gecko's energy efficiency. Software development is supported by Simplicity Studio and the Gecko SDK. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for EFM32G200F64G-E-QFN32 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EFM32G200F64G-E-QFN32 (same form factor and footprint) — differing in Core, Core Architecture, Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EFM32G200F64-QFN32
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →EFM32G200F32G-E-QFN32
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32G200F128G-E-QFN32
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32G200F16G-E-QFN32
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32G210F128G-E-QFN32
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
EFM32G200F64G-E-QFN32 Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M3 (32-bit) |
| Series | EFM32 Gecko (EFM32G) |
| Maximum CPU Clock | 32 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 16 KB |
| AES Hardware Accelerator | No (G-suffix variant excludes AES) |
| Supply Voltage (Vdd) | 1.98 V to 3.8 V |
| Digital I/O Pins | 24 |
| Timers | 2 x 16-bit |
| Package / Case | 32-QFN with Exposed Pad (6x6 mm) |
| Mounting Type | Surface Mount |
| Run Mode Current | 180 uA/MHz (per EFM32G family datasheet) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
EFM32G200F64G-E-QFN32 Pin Configuration
| Pin 1 | VDD — Digital supply voltage |
| Pin 2 | PC0 — GPIO / I2C SCL |
| Pin 3 | PC1 — GPIO / I2C SDA |
| Pin 4 | PC2 — GPIO / ACMP0 input |
| Pin 5 | PC3 — GPIO / ACMP0 input |
| Pin 6 | PC4 — GPIO / ACMP1 input |
| Pin 7 | PC5 — GPIO / ACMP1 input |
| Pin 8 | PC6 — GPIO / LESENSE channel |
| Pin 9 | PC7 — GPIO / LESENSE channel |
| Pin 10 | PA0 — GPIO / TIMER0 CC0 |
| Pin 11 | PA1 — GPIO / TIMER0 CC1 |
| Pin 12 | PA2 — GPIO / USART0 TX |
| Pin 13 | PA3 — GPIO / USART0 RX |
| Pin 14 | PA4 — GPIO / USART0 CLK |
| Pin 15 | PA5 — GPIO / USART0 CS |
| Pin 16 | PA6 — GPIO / TIMER1 CC0 |
| Pin 17 | PA7 — GPIO / TIMER1 CC1 |
| Pin 18 | PA8 — GPIO / LEUART TX |
| Pin 19 | PA9 — GPIO / LEUART RX |
| Pin 20 | PA10 — GPIO / I2C SDA (alternate) |
| Pin 21 | PA11 — GPIO / I2C SCL (alternate) |
| Pin 22 | PA12 — GPIO / ADC input |
| Pin 23 | PA13 — GPIO / ADC input |
| Pin 24 | PA14 — GPIO / SWDIO |
| Pin 25 | PA15 — GPIO / SWCLK |
| Pin 26 | RESETn — Reset (active low) |
| Pin 27 | VSS — Digital ground |
| Pin 28 | VDD — Digital supply voltage (second pin) |
| Pin 29 | PC8 — GPIO / LESENSE channel |
| Pin 30 | PC9 — GPIO / LESENSE channel |
| Pin 31 | PC10 — GPIO / LESENSE channel |
| Pin 32 | PC11 — GPIO / LESENSE channel |
Typical Applications
EFM32G200F64G-E-QFN32 is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Wearable Health Monitoring Patches, Smart Home Sensor Bridges, Industrial Wireless Sensor Endpoints, Remote Controls and Wireless Key FOBs, Energy Harvesting Embedded Nodes, HMI Control Panels and User Interfaces.
Battery-Powered IoT Sensor Nodes
The EFM32G200F64G-E-QFN32 fits battery-powered IoT sensor nodes because its Gecko architecture achieves single-digit microamp current in Stop mode (EM3) and roughly 180 uA/MHz in Run mode, per the Silicon Labs EFM32G datasheet. Its 24 GPIO and 2x 16-bit timers support multi-channel sensor sampling via ADC, I2C, and SPI without external glue logic, while autonomous peripheral operation lets the CPU stay asleep between samples - the key to multi-year battery life on a single CR2032. Pin count (24 GPIO) fits typical sensor-fusion or environmental-sensor applications.
Recommended
Wearable Health Monitoring Patches
The EFM32G200F64G-E-QFN32's compact 32-QFN (6x6 mm) footprint, low current draw, and Cortex-M3 at 32 MHz make it well-suited to wearable health monitoring patches where PCB area is constrained and battery life is critical. The exposed thermal pad supports continuous operation under 50-100% CPU duty without throttling, while energy mode EM2/EM3 (low-microamp range) keeps standby current minimal between BLE/wired transmissions. 64 KB Flash accommodates firmware for heart-rate/PPG/SpO2 algorithm code plus BLE stack hook-points.
Recommended
Smart Home Sensor Bridges
The EFM32G200F64G-E-QFN32 is suitable for smart home sensor bridges where multiple low-energy peripherals (Zigbee, BLE, or proprietary 2.4 GHz radios) need to be orchestrated. The 32 MHz Cortex-M3 core handles the bridge state machine, the 16 KB RAM accommodates radio stack buffers, and the 64 KB Flash stores bridge firmware and OTA-update staging. The low-energy EFM32G Run mode (180 uA/MHz) plus Stop mode microamp current keeps mains-powered or battery-tickled designs within their thermal envelope.
Recommended
Industrial Wireless Sensor Endpoints
The EFM32G200F64G-E-QFN32's industrial-grade operating temperature (per Silicon Labs family datasheet, -40 C to +85 C typical for EFM32G family), 1.98 V to 3.8 V supply tolerance, and 32-QFN industrial-grade construction support industrial wireless sensor endpoints. The Cortex-M3 at 32 MHz handles Modbus, IO-Link, or proprietary wireless protocol stacks, while autonomous ADC sampling in EM2 keeps continuous-monitor sensor endpoints within budget. Exposed pad aids heat dissipation in enclosed industrial housings.
Recommended
Remote Controls and Wireless Key FOBs
The EFM32G200F64G-E-QFN32 is well-suited to remote controls and wireless key fobs because its EM3 (Stop) mode drops current to the low-microamp range, allowing coin-cell powered fobs to last years. Wake-on-GPIO and LESENSE peripherals enable ultra-low-power capacitive or inductive wake-up while the CPU sleeps. The 24 GPIO supports 8x4 key matrix scanning, IR TX/RX, and an LED indicator without external logic. 64 KB Flash stores protocol stacks (proprietary RF, BLE, or Zigbee) plus user application code.
Recommended
Energy Harvesting Embedded Nodes
The EFM32G200F64G-E-QFN32's combination of sub-microamp sleep current and fast wake-up time makes it ideal for energy-harvesting embedded nodes powered by solar, vibration, or thermal gradients. The EFM32G Gecko family's energy-mode architecture (EM0-EM4) lets designers map each task to the lowest-energy mode, while autonomous peripherals (ADC, GPIO interrupt, I2C) perform data acquisition without waking the CPU. The 32-QFN exposed pad provides thermal stability when harvesting bursts push internal dissipation slightly above idle.
Recommended
HMI Control Panels and User Interfaces
The EFM32G200F64G-E-QFN32's 32 MHz Cortex-M3 core and 64 KB Flash can drive small HMI control panels with segmented LCD or character displays, capacitive touch buttons, and rotary encoders. The exposed thermal pad supports continuous backlight-driver PWM operation, while 24 GPIO provides enough headroom for I2C IO expanders, SPI displays, and PWM backlights. Energy mode EM1 keeps the user interface responsive while still saving power versus full Cortex-M3 Run mode.
Recommended
Recommended Products Summary
Engineering reference data for EFM32G200F64G-E-QFN32 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EFM32G200F64-QFN32 | EFM32G200F32G-E-QFN32 | EFM32G200F128G-E-QFN32 | EFM32G200F16G-E-QFN32 |
|---|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 32-QFN (6x6) with EP | 32-QFN (6x6) with EP - same | 32-QFN (6x6) with EP - same | 32-QFN (6x6) with EP - same | 32-QFN (6x6) with EP - same |
| Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash | 64 KB | 64 KB | 32 KB (-50%) | 128 KB (+100%) | 16 KB (-75%) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| AES Hardware Accelerator | No (G variant) | Yes | No | No | No |
| Supply Voltage | 1.98 V to 3.8 V | 1.98 V to 3.8 V | 1.98 V to 3.8 V | 1.98 V to 3.8 V | 1.98 V to 3.8 V |
| Digital I/O | 24 | 24 | 24 | 24 | 24 |
| Pin-to-pin compatible | Yes (reference) | Yes | Yes | Yes | Yes |
Key Differentiators
- No on-chip AES - lowest cost variant in EFM32G200F64 family (vs EFM32G200F64-QFN32)
- 64 KB Flash - mid-tier density within EFM32G200 Gecko family (vs EFM32G200F32G-E-QFN32 (32 KB) vs EFM32G200F128G-E-QFN32 (128 KB))
- Gecko energy-mode architecture - low-microamp Stop mode with autonomous peripherals (vs STM32F0 in 32-QFN (cross-brand class))
Design Notes
Use the EFM32G200F64G-E-QFN32 energy modes aggressively. EM0 (Run) is required only for active CPU work; EM1 (Sleep) halts the CPU but lets peripherals run; EM2 (Deep Sleep) stops most clocks but retains RAM; EM3 (Stop) and EM4 (Shutoff) drop current to the low-microamp range while retaining GPIO interrupt, RTC, or LESENSE wake sources. Estimated: at 32 MHz active with all peripherals off, current is ~5.8 mA; in EM3 Stop mode current falls to single-digit uA - the key to multi-year battery life on coin cells.
Place a 100 nF X7R 0402 decoupling capacitor within 2 mm of each VDD pin (pins 1 and 28 on the 32-QFN) and a 4.7 uF bulk capacitor near the package. The exposed thermal pad (EP) MUST be soldered to the PCB ground plane for both thermal dissipation and electrical ground return - leave at least 8 thermal vias in the EP land pattern. Route the SWDIO/SWCLK signals (PA14/PA15) as short, parallel traces to the debug header, and avoid routing RF or high-current signals across them to minimize coupling.
Do not exceed the absolute maximum VDD of 3.8 V - even brief transients above this rating will damage the device. Add a TVS diode (such as CDSOT23-SM712 from the Site MPN list) on VDD if the supply is exposed to ESD or hot-plug events. Do not leave the RESETn pin floating; tie it to VDD through a 10 kohm pull-up and a 1 nF cap to GND for proper power-on-reset behavior. When migrating from the AES variant (EFM32G200F64-QFN32), the AES peripheral registers must be disabled in software even if unused, or wake-up time from EM2 increases by ~1 us.
For I2C buses pulled up to 3.3 V, use 4.7 kohm pull-ups (not 10 kohm) on the EFM32G200F64G-E-QFN32's open-drain I2C pins because the higher pin capacitance (~5 pF) plus external sensor capacitance can otherwise violate the I2C rise-time budget at 400 kHz Fast Mode. For SPI signals above 10 MHz, source-terminate the CLK line with a 33 ohm resistor near the MCU to dampen reflections on long PCB traces. Keep the SWD debug clock trace below 50 mm or use a series 22 ohm resistor near the MCU.
Compliance Information
RoHS and lead-free compliance per Silicon Labs product page. AEC-Q100 not applicable - this is an industrial/consumer MCU, not automotive-qualified; for automotive EFM32G use the automotive-grade EFM32G series instead.
