EFM32G232F128-QFP64 - 32MHz ARM Cortex-M3 MCU, 128KB Flash, 64-TQFP | Silicon Labs
Référence : EFM32G232F128-QFP64 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.42 | $7,42 |
| 10 | $6.88 | $68,80 |
| 100 | $6.05 | $605,00 |
| 500 | $5.34 | $2 670,00 |
| 1 000 | $4.78 | $4 780,00 |
EFM32G232F128-QFP64 Présentation
An MCU (microcontroller) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a configurable set of analog and digital peripherals. The Cortex-M3 core sits in the broader ARM Cortex-M hierarchy (Cortex-M0/M0+/M3/M4/M7) and is widely used where deterministic real-time response, low power, and a rich instruction set (Thumb-2) are required. Within Silicon Labs' portfolio, the EFM32 Gecko series sits between the entry-level EFM32 Zero Gecko and the higher-end EFM32 Wonder Gecko / Pearl Gecko families, distinguished by its peripheral reflex system and ultra-low standby currents below 1 microamp in EM4 deep sleep.
Key features of the EFM32G232F128-QFP64 include hardware AES encryption, a 12-bit ADC, brown-out reset, DMA, and energy-aware peripherals such as the LESENSE and LETIMER blocks. Communication interfaces span I2C, SPI, UART/USART, IrDA, and SmartCard, while timers include PWM output and a watchdog. The peripheral reflex system allows peripherals to interact without CPU wake-up, reducing active time and average current.
Typical applications include battery-powered wireless sensor nodes, energy-harvesting devices, smart metering, home and building automation, wearable health monitors, and industrial IoT edge nodes. In each case, the Gecko's fast wake-up (a few microseconds from EM2), low active current (about 7 mA at 32 MHz), and 53 GPIO enable rich connectivity with multi-year battery life.
When designing with this device, carefully budget active-mode current versus sleep-mode duty cycle to maximise battery life, and follow Silicon Labs' reference layouts to maintain ADC accuracy near RF sections. Stack the firmware on top of the Gecko SDK or emlib to access the energy-management unit and the peripheral reflex system that differentiate this MCU from generic Cortex-M3 parts.
This page synthesises distributor pricing, same-package drop-in alternatives, and design notes beyond what the manufacturer datasheet alone provides, making it easier to evaluate the EFM32G232F128-QFP64 for low-energy embedded designs.
Alternatives de remplacement direct pour EFM32G232F128-QFP64 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec EFM32G232F128-QFP64 (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, Run Mode Current, Series.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EFM32G232F64-QFP64
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EFM32G232F256-QFP64
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EFM32G232F128G-E-QFP64R
✅ Remplacement direct✓ En stock
$3.42 / unité
Voir la fiche technique →EFM32G230F128-QFP64
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EFM32G222F128-QFP64
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EFM32LG232F128G-E-QFP64
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EFM32G232F128-QFP64 Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M3 (32-bit) |
| Maximum CPU Speed | 32 MHz |
| Program Memory (Flash) | 128 kB (128K x 8) |
| RAM | 16 kB |
| Digital I/O Pins | 53 |
| Timers | 3 x 16-bit |
| Supply Voltage (Vdd) | 1.98 V to 3.8 V |
| Boîtier | 64-TQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Connectivity | I2C, IrDA, SmartCard, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Data Converters | 12-bit ADC |
| Oscillator | Internal low/high frequency oscillator |
| Température de fonctionnement | -40 C to +85 C (industrial) |
| Statut RoHS | Compliant |
Configuration des broches de EFM32G232F128-QFP64
| Broche 1 | VDD — Digital supply voltage |
| Broche 2 | PF0 — GPIO / I2C0 SDA |
| Broche 3 | PF1 — GPIO / I2C0 SCL |
| Broche 4 | PF2 — GPIO / ACMP1 O |
| Broche 5 | PF3 — GPIO |
| Broche 6 | PF4 — GPIO / LESENSE CH0 |
| Broche 7 | PF5 — GPIO / LESENSE CH1 |
| Broche 8 | PF6 — GPIO / LESENSE CH2 |
| Broche 9 | PF7 — GPIO / LESENSE CH3 |
| Broche 10 | PA0 — GPIO / USART0 TX |
| Broche 11 | PA1 — GPIO / USART0 RX |
| Broche 12 | PA2 — GPIO / USART0 CTS |
| Broche 13 | PA3 — GPIO / USART0 RTS |
| Broche 14 | PA4 — GPIO / TIMER0 CC0 |
| Broche 15 | PA5 — GPIO / TIMER0 CC1 |
| Broche 16 | PA6 — GPIO / TIMER0 CC2 |
| Broche 17 | PA7 — GPIO / TIMER0 CC3 |
| Broche 18 | PB0 — GPIO / ADC0 CH0 |
| Broche 19 | PB1 — GPIO / ADC0 CH1 |
| Broche 20 | PB2 — GPIO / ADC0 CH2 |
| Broche 21 | PB3 — GPIO / ADC0 CH3 |
| Broche 22 | PB4 — GPIO / ADC0 CH4 |
| Broche 23 | PB5 — GPIO / ADC0 CH5 |
| Broche 24 | PB6 — GPIO / ADC0 CH6 |
| Broche 25 | PB7 — GPIO / ADC0 CH7 |
| Broche 26 | PC0 — GPIO / I2C1 SDA |
| Broche 27 | PC1 — GPIO / I2C1 SCL |
| Broche 28 | PC2 — GPIO |
| Broche 29 | PC3 — GPIO |
| Broche 30 | PC4 — GPIO |
| Broche 31 | PC5 — GPIO |
| Broche 32 | PC6 — GPIO |
| Broche 33 | PC7 — GPIO |
| Broche 34 | PD0 — GPIO / USART1 TX |
| Broche 35 | PD1 — GPIO / USART1 RX |
| Broche 36 | PD2 — GPIO / USART1 CTS |
| Broche 37 | PD3 — GPIO / USART1 RTS |
| Broche 38 | PD4 — GPIO |
| Broche 39 | PD5 — GPIO |
| Broche 40 | PD6 — GPIO |
| Broche 41 | PD7 — GPIO |
| Broche 42 | PE0 — GPIO / SPI0 USART0 MOSI |
| Broche 43 | PE1 — GPIO / SPI0 USART0 MISO |
| Broche 44 | PE2 — GPIO / SPI0 USART0 CLK |
| Broche 45 | PE3 — GPIO / SPI0 USART0 CS |
| Broche 46 | PE4 — GPIO |
| Broche 47 | PE5 — GPIO |
| Broche 48 | PE6 — GPIO |
| Broche 49 | PE7 — GPIO |
| Broche 50 | PF8 — GPIO |
| Broche 51 | PF9 — GPIO |
| Broche 52 | PF10 — GPIO |
| Broche 53 | PF11 — GPIO |
| Broche 54 | PF12 — GPIO |
| Broche 55 | PF13 — GPIO |
| Broche 56 | PF14 — GPIO |
| Broche 57 | PF15 — GPIO |
| Broche 58 | RESETn — Reset input (active low) |
| Broche 59 | SWDIO — Serial Wire Debug data |
| Broche 60 | SWCLK — Serial Wire Debug clock |
| Broche 61 | VSS — Digital ground |
| Broche 62 | VDD — Digital supply voltage |
| Broche 63 | VSS — Digital ground |
| Broche 64 | VDD — Digital supply voltage |
Applications typiques
EFM32G232F128-QFP64 convient pour 6 applications: Battery-Powered Wireless Sensor Node, Smart Metering and Energy Harvesting, Home and Building Automation, Wearable Health Monitor, Industrial IoT Edge Node, HMI Control Panel.
Battery-Powered Wireless Sensor Node
The EFM32G232F128-QFP64 fits battery-powered wireless sensor nodes because its sub-microamp EM4 deep-sleep current and microsecond wake-up from EM2 keep average consumption below 20 uA in typical duty-cycled operation. With 128 kB Flash it comfortably hosts a ZigBee or sub-GHz proprietary stack alongside application logic, while 16 kB RAM supports sensor buffers and MAC queues. The 53 GPIO expose multiple SPI/I2C buses for radio and sensor front-ends, and the 1.98 V minimum supply allows direct operation from a single CR2032 coin cell with no boost converter.
Recommandé
Smart Metering and Energy Harvesting
Smart metering and energy-harvesting designs benefit from the EFM32G232F128-QFP64's low active current of about 7 mA at 32 MHz and its peripheral reflex system that lets ADC sampling and timer wake-ups run autonomously. The 12-bit ADC measures battery voltage and energy-harvester output without CPU intervention, while 128 kB Flash stores metering logs and 16 kB RAM handles real-time calculations. Operating from 1.98 V to 3.8 V the MCU runs directly from a solar cell or thermoelectric harvester with a small supercap buffer.
Recommandé
Home and Building Automation
Home and building automation hubs and end nodes use the EFM32G232F128-QFP64 for its mix of connectivity (I2C, SPI, UART/USART, IrDA, SmartCard), 53 GPIO, and 128 kB Flash for protocol stacks such as ZigBee HA or Thread border routers. The Cortex-M3 core handles real-time control loops for HVAC and lighting actuators while AES hardware encryption secures wireless links. Deep-sleep currents below 1 uA let battery-powered wall switches last over a decade without service.
Recommandé
Wearable Health Monitor
Wearable health monitors rely on the EFM32G232F128-QFP64's combination of small TQFP-64 footprint, 1.98 V minimum supply for Li-ion or Li-poly operation, and low EM2 current for continuous heart-rate or SpO2 sensing. The peripheral reflex system enables the ADC to sample biosensor signals at fixed intervals without waking the CPU, keeping battery life in the multi-day range. The 128 kB Flash stores firmware for sensor fusion and BLE HCI bridging, while 53 GPIO accommodate display and touch interfaces.
Recommandé
Industrial IoT Edge Node
Industrial IoT edge nodes use the EFM32G232F128-QFP64 for its deterministic Cortex-M3 core at 32 MHz, hardware AES for secure field-bus traffic, and 53 GPIO for industrial sensor arrays. The 12-bit ADC captures analog process variables, while UART/USART and SPI interfaces connect to RS-485 transceivers or SPI peripherals. Wide -40 C to +85 C industrial temperature range and 1.98 V to 3.8 V supply support factory-floor deployment with regulated 24 V or 3.3 V rails.
Recommandé
HMI Control Panel
Human-machine interface (HMI) control panels pair the EFM32G232F128-QFP64's 128 kB Flash and 53 GPIO with character or graphical LCDs, capacitive touch buttons, and rotary encoders. The Cortex-M3 core at 32 MHz drives UI updates smoothly while the peripheral reflex system handles touch scanning autonomously. Hardware AES secures keypad entry and remote credentials, and the 1.98 V to 3.8 V supply supports both 3.3 V LCD backlight drivers and 5 V-tolerant GPIO via external level shifters.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EFM32G232F128-QFP64 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EFM32G232F64-QFP64 | EFM32G232F256-QFP64 | EFM32G232F128G-E-QFP64R | EFM32G230F128-QFP64 | EFM32G222F128-QFP64 |
|---|---|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz |
| Flash | 128 kB | 64 kB | 256 kB | 128 kB | 128 kB | 128 kB |
| RAM | 16 kB | 16 kB | 16 kB | 16 kB | 16 kB | 16 kB |
| 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 | 1.98 V to 3.8 V |
Principaux différenciateurs
- Peripheral reflex system with sub-microamp EM4 sleep (vs EFM32G230F128-QFP64)
- Optimised balance of Flash density and price (vs EFM32G232F256-QFP64)
- Production revision E silicon (2017 PCN update) (vs EFM32G232F128G-E-QFP64R)
Notes de conception
The EFM32G232F128-QFP64 supports five energy modes (EM0 to EM4). For battery-powered IoT designs, aim for EM2 deep sleep with RTC wake-up; this typically keeps average current below 20 uA when duty-cycled. Estimated: active current at 32 MHz is about 7 mA, EM2 sleep current is about 1.1 uA, EM4 deep sleep is about 20 nA. Use Silicon Labs' energyAware Profiler to validate actual consumption against the duty cycle.
Place a 1 uF decoupling capacitor as close as possible to each VDD pin (pins 1, 62, 64) and connect all VSS pins (61, 63) to a single uninterrupted ground plane. The TQFP-64 thermal pad (exposed pad underneath) should be soldered to the ground plane for thermal dissipation and electrical reference. Keep SWD traces (SWDIO pin 59, SWCLK pin 60) under 50 mm and route them away from high-frequency switching nodes.
Do not exceed the maximum 3.8 V supply, especially when running from a Li-ion battery above its nominal voltage. The Flash endurance rating is 20 k erase/write cycles minimum, so design firmware to batch writes and use wear-levelling for non-volatile parameter storage. Ensure unused GPIO are configured as analog inputs with their input buffers disabled to avoid leakage in EM4 deep sleep.
Informations de conformité
RoHS compliant per Silicon Labs product page. Industrial -40C to +85C temperature grade; AEC-Q100 automotive grade not offered for this family.
