EFM32LG880F256G-E-QFP100 - 48MHz ARM Cortex-M3 MCU 256KB | Silicon Labs
Référence : EFM32LG880F256G-E-QFP100 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.06 | $5,06 |
| 10 | $4.71 | $47,10 |
| 100 | $4.32 | $432,00 |
| 500 | $3.94 | $1 970,00 |
| 1 000 | $3.55 | $3 550,00 |
EFM32LG880F256G-E-QFP100 Présentation
A 32-bit microcontroller (MCU) is an embedded processor that integrates a CPU core, memory, and peripherals onto a single silicon die. Within the embedded computing hierarchy, an MCU occupies the tier below microprocessors - it sacrifices raw clock speed for deterministic real-time behavior, on-chip memory, and ultra-low standby current. ARM Cortex-M3 cores follow the ARMv7-M architecture with Thumb-2 instruction set, hardware divide-divide, and bit-banding for atomic bit manipulation. The Leopard Gecko (EFM32LG) family adds Silicon Labs' proprietary energy-management peripheral set, making the line a derivative of the energy-friendly EFM32 platform originally developed by Energy Micro and now consolidated under the Silicon Labs portfolio.
Key features include 0.65 uA deep-sleep current in Stop mode, 211 uA/MHz active current in Run mode, autonomous peripherals that operate in sleep, a hardware AES-128 crypto accelerator, and a low-energy UART that can wake the part on a start bit without CPU intervention. The integrated segmented LCD driver supports up to 8x36 segments and is designed for direct bias of low-power glass displays. Supply voltage spans 1.98 V to 3.8 V from a single rail.
Typical applications include battery-powered smart thermostats, wearable fitness bands, electronic shelf labels, remote sensor nodes, and portable medical monitors where years of operation on a coin cell are required. The wide pin-count and LCD interface make it ideal for human-interface end equipment such as industrial HMIs, e-meter displays, and the user-interface panel of home appliances.
Alternatives de remplacement direct pour EFM32LG880F256G-E-QFP100 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
EFM32LG880F256G-F-QFP100
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EFM32LG880F128G-E-QFP100
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EFM32LG880F64G-E-QFP100
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
EFM32LG880F256G-E-QFP100R
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
EFM32LG880F256G-E-QFP100 Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M3 32-bit |
| Family | EFM32 Leopard Gecko (EFM32LG) |
| CPU Clock Speed | 48 MHz max |
| Program Flash | 256 kB |
| SRAM | 32 kB |
| Operating Voltage (Vdd) | 1.98 V to 3.8 V |
| Digital I/O Pins | 86 |
| ADC | 12-bit |
| Timers | 4 x 16-bit |
| LCD Controller | Integrated segmented, up to 8x36 segments |
| Active Current (Run Mode) | 211 uA/MHz |
| Sleep Current (Stop Mode) | 0.65 uA |
| Crypto Accelerator | AES-128 hardware |
| Boîtier | 100-LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de EFM32LG880F256G-E-QFP100
| Broche 1 | PD0 — GPIO / I2C0 SDA |
| Broche 2 | PD1 — GPIO / I2C0 SCL |
| Broche 3 | PD2 — GPIO / ADC0 ch2 |
| Broche 4 | PD3 — GPIO / ADC0 ch3 |
| Broche 5 | VDD — Digital supply voltage |
| Broche 6 | VSS — Digital ground |
| Broche 7 | PD4 — GPIO / LEUART0 TX |
| Broche 8 | PD5 — GPIO / LEUART0 RX |
| Broche 9 | PD6 — GPIO / TIMER0 CC0 |
| Broche 10 | PD7 — GPIO / TIMER0 CC1 |
| Broche 11 | PD8 — GPIO / TIMER0 CC2 |
| Broche 12 | PD9 — GPIO / ACMP0 input |
| Broche 13 | PD10 — GPIO / ACMP1 input |
| Broche 14 | PD11 — GPIO / I2C1 SDA |
| Broche 15 | PD12 — GPIO / I2C1 SCL |
| Broche 16 | PD13 — GPIO |
| Broche 17 | PD14 — GPIO |
| Broche 18 | PD15 — GPIO |
| Broche 19 | PA0 — GPIO / USART0 CTS |
| Broche 20 | PA1 — GPIO / USART0 RTS |
| Broche 21 | PA2 — GPIO / USART0 RX |
| Broche 22 | PA3 — GPIO / USART0 TX |
| Broche 23 | PA4 — GPIO / TIMER1 CC0 |
| Broche 24 | PA5 — GPIO / TIMER1 CC1 |
| Broche 25 | PA6 — GPIO / TIMER1 CC2 |
| Broche 26 | PA7 — GPIO |
| Broche 27 | PA8 — GPIO / LESENSE ch0 |
| Broche 28 | PA9 — GPIO / LESENSE ch1 |
| Broche 29 | PA10 — GPIO / LESENSE ch2 |
| Broche 30 | PA11 — GPIO / LESENSE ch3 |
| Broche 31 | PA12 — GPIO / LESENSE ch4 |
| Broche 32 | PA13 — GPIO / LESENSE ch5 |
| Broche 33 | PA14 — GPIO / LESENSE ch6 |
| Broche 34 | PA15 — GPIO / LESENSE ch7 |
| Broche 35 | PB0 — GPIO / LCD segment |
| Broche 36 | PB1 — GPIO / LCD segment |
| Broche 37 | PB2 — GPIO / LCD segment |
| Broche 38 | PB3 — GPIO / LCD segment |
| Broche 39 | PB4 — GPIO / LCD segment |
| Broche 40 | PB5 — GPIO / LCD segment |
| Broche 41 | PB6 — GPIO / LCD segment |
| Broche 42 | PB7 — GPIO / LCD segment |
| Broche 43 | PB8 — GPIO / LCD segment |
| Broche 44 | PB9 — GPIO / LCD segment |
| Broche 45 | PB10 — GPIO / LCD segment |
| Broche 46 | PB11 — GPIO / LCD segment |
| Broche 47 | PB12 — GPIO / LCD segment |
| Broche 48 | PB13 — GPIO / LCD segment |
| Broche 49 | PB14 — GPIO / LCD segment |
| Broche 50 | PB15 — GPIO / LCD segment |
| Broche 51 | PC0 — GPIO / LCD segment |
| Broche 52 | PC1 — GPIO / LCD segment |
| Broche 53 | PC2 — GPIO / LCD segment |
| Broche 54 | PC3 — GPIO / LCD segment |
| Broche 55 | PC4 — GPIO / LCD segment |
| Broche 56 | PC5 — GPIO / LCD segment |
| Broche 57 | PC6 — GPIO / LCD segment |
| Broche 58 | PC7 — GPIO / LCD segment |
| Broche 59 | PC8 — GPIO / LCD common |
| Broche 60 | PC9 — GPIO / LCD common |
| Broche 61 | PC10 — GPIO / LCD common |
| Broche 62 | PC11 — GPIO / LCD common |
| Broche 63 | PC12 — GPIO / LCD common |
| Broche 64 | PC13 — GPIO / LCD common |
| Broche 65 | PC14 — GPIO / LCD common |
| Broche 66 | PC15 — GPIO / LCD common |
| Broche 67 | VDD — Digital supply voltage |
| Broche 68 | VSS — Digital ground |
| Broche 69 | PE0 — GPIO / USART1 RX |
| Broche 70 | PE1 — GPIO / USART1 TX |
| Broche 71 | PE2 — GPIO / USART2 RX |
| Broche 72 | PE3 — GPIO / USART2 TX |
| Broche 73 | PE4 — GPIO / TIMER2 CC0 |
| Broche 74 | PE5 — GPIO / TIMER2 CC1 |
| Broche 75 | PE6 — GPIO / TIMER2 CC2 |
| Broche 76 | PE7 — GPIO |
| Broche 77 | PE8 — GPIO / ADC1 ch8 |
| Broche 78 | PE9 — GPIO / ADC1 ch9 |
| Broche 79 | PE10 — GPIO / ADC1 ch10 |
| Broche 80 | PE11 — GPIO / ADC1 ch11 |
| Broche 81 | PE12 — GPIO / DAC0 output |
| Broche 82 | PE13 — GPIO |
| Broche 83 | PE14 — GPIO |
| Broche 84 | PE15 — GPIO |
| Broche 85 | PF0 — GPIO / TIMER3 CC0 |
| Broche 86 | PF1 — GPIO / TIMER3 CC1 |
| Broche 87 | PF2 — GPIO / TIMER3 CC2 |
| Broche 88 | PF3 — GPIO / ACMP2 input |
| Broche 89 | PF4 — GPIO / ACMP3 input |
| Broche 90 | PF5 — GPIO / LESENSE ch8 |
| Broche 91 | PF6 — GPIO / LESENSE ch9 |
| Broche 92 | PF7 — GPIO / LESENSE ch10 |
| Broche 93 | PF8 — GPIO / LESENSE ch11 |
| Broche 94 | PF9 — GPIO / LESENSE ch12 |
| Broche 95 | PF10 — GPIO / LESENSE ch13 |
| Broche 96 | PF11 — GPIO / LESENSE ch14 |
| Broche 97 | PF12 — GPIO / LESENSE ch15 |
| Broche 98 | PF13 — GPIO / DEBUG SWDIO |
| Broche 99 | PF14 — GPIO / DEBUG SWCLK |
| Broche 100 | RESETn — Reset input, active low |
Applications typiques
EFM32LG880F256G-E-QFP100 convient pour 6 applications: Battery-Powered Smart Thermostat, Wearable Fitness Band, Electronic Shelf Label (ESL), Industrial HMI Panel, Portable Medical Monitor, Smart E-Meter / Utility Display.
Battery-Powered Smart Thermostat
The EFM32LG880F256G-E-QFP100 fits smart-thermostat designs because its 0.65 uA Stop-mode current lets the device sleep almost indefinitely between user interactions, while the 48 MHz Cortex-M3 core wakes instantly to drive the segmented LCD for temperature and humidity readouts. Placed as the main controller connected to a temperature/humidity sensor over I2C and a low-power segmented glass display, it delivers years of battery life on two AA cells. The 256 kB flash holds the HVAC control logic plus a BLE stack for app pairing. Unlike a generic Cortex-M0 MCU it adds the integrated LCD controller that eliminates a separate driver IC, reducing BOM cost and quiescent current.
Recommandé
Wearable Fitness Band
The EFM32LG880F256G-E-QFP100 is ideal for wearable fitness applications because its 211 uA/MHz active current and 0.65 uA Stop current combine with autonomous sensor polling (LETIMER + LESENSE) to give multi-day battery life on a 100 mAh LiPo. The 12-bit ADC handles PPG heart-rate sensor readout directly without an external AFE, and the integrated 8x36-segment LCD controller drives the band's status display in deep-sleep at sub-1 uA total. Hardware AES-128 secures BLE pairing and stored biometrics. Placed as the main MCU between the PPG sensor, BLE radio, and segmented display, it removes the need for a separate display driver IC.
Recommandé
Electronic Shelf Label (ESL)
The EFM32LG880F256G-E-QFP100 fits electronic shelf labels because its deep-sleep current of 0.65 uA and integrated segmented LCD controller allow a coin-cell-powered price tag to operate for 5-10 years without battery replacement. The Cortex-M3 core at 48 MHz handles proprietary 2.4 GHz or NFC-based updates of price/description, while the AES-128 hardware accelerator authenticates updates. Placed on the ESL module with a small segmented glass display, it eliminates the typical external charge-pump circuitry. The 256 kB flash stores localized text strings and pricing logic, and 86 GPIO drive larger 7-segment panels.
Recommandé
Industrial HMI Panel
The EFM32LG880F256G-E-QFP100 suits industrial HMI panels because its 86 GPIO drive key-matrix inputs, status LEDs, and a multi-line segmented LCD, all without external driver ICs. The 100-LQFP package exposes sufficient I/O for a 6x6 button matrix plus dedicated pins for rotary encoders. The 12-bit ADC reads front-panel trim pots and analog sensor signals, while the 1.98 V to 3.8 V supply range allows direct 3.3 V rail operation. Placed as the front-panel MCU communicating with a host controller over UART or SPI, it cuts BOM cost and standby power compared with a Cortex-M4 design.
Recommandé
Portable Medical Monitor
The EFM32LG880F256G-E-QFP100 is well matched to portable medical monitors because its 12-bit ADC captures pulse oximetry and temperature sensor data with adequate ENOB for SpO2 trending, while the integrated segmented LCD displays readings without an external driver. The hardware AES-128 secures patient data transmission to a host device, meeting HIPAA-grade device expectations. Placed as the main MCU with a Li-coin cell, the 0.65 uA Stop current delivers months of standby life. The 256 kB flash accommodates firmware for sensor fusion, BLE pairing, and onboard storage of recent readings.
Recommandé
Smart E-Meter / Utility Display
The EFM32LG880F256G-E-QFP100 fits electronic meters and utility display applications because its integrated 8x36-segment LCD controller drives a multi-digit glass display directly, while autonomous energy-monitoring peripherals allow continuous metrology without waking the CPU. The 12-bit ADC handles voltage and current sensing for single-phase metering, and the 86 GPIO support tamper-detection switches and optical interfaces. Placed as the metrology MCU with an isolated shunt, the Cortex-M3 runs the metrology algorithm at 48 MHz while Stop mode consumes only 0.65 uA, extending battery-backed operation across power outages.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour EFM32LG880F256G-E-QFP100 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | EFM32LG880F256G-F-QFP100 | EFM32LG880F128G-E-QFP100 | EFM32LG880F64G-E-QFP100 |
|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Max Clock Speed | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash | 256 kB | 256 kB | 128 kB (-50%) | 64 kB (-75%) |
| SRAM | 32 kB | 32 kB | 32 kB | 32 kB |
| Stop-Mode Current | 0.65 uA | 0.65 uA | 0.65 uA | 0.65 uA |
| GPIO Count | 86 | 86 | 86 | 86 |
| LCD Controller | Integrated 8x36 | Integrated 8x36 | Integrated 8x36 | Integrated 8x36 |
| 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 |
Principaux différenciateurs
- Lowest Stop-mode current in the 100-LQFP Cortex-M3 class (vs STM32L152VCT6)
- Integrated 8x36-segment LCD controller on-chip (vs EFM32LG842F256G-F-QFP64)
- 256 kB flash matches entire 100-LQFP Leopard Gecko family (vs EFM32LG880F128G-E-QFP100)
Notes de conception
Estimated: at 48 MHz active CPU the EFM32LG880F256G draws ~10 mA core current. With 3.3 V supply, power dissipation is ~33 mW - the LQFP-100 thermal resistance of ~50 C/W yields a junction rise of only ~1.6 C, so no heatsink is required. However, in active modes the dominant power consumer is the analog subsystem and the LCD bias; place a 1 uF ceramic decoupling capacitor within 5 mm of each VDD/VSS pair and a bulk 10 uF on the regulator output to prevent inrush sag during LCD refresh.
The LQFP-100 package has a junction-to-ambient thermal resistance of approximately 50 C/W on a 2-layer JEDEC test board. Estimated: even at 48 MHz active current of 10 mA from a 3.8 V supply (worst-case Vdd) the dissipation is 38 mW, leading to ~1.9 C rise - well within the 125 C junction limit. For designs using full GPIO drive strength, derate by 0.7-1.0 for simultaneous high-current pin switching.
Route the SWD debug pins (PF13 SWDIO, PF14 SWCLK) as a 10 cm or less length-matched pair with a ground trace between them; place a 4.7 kohm pull-up on SWDIO per ARM CoreSight recommendations. Keep the RESETn trace short and provide a 100 kohm pull-up plus 1 nF-to-ground for noise immunity. The integrated LCD controller drives 4 common and 8 segment pins - keep LCD traces short and isolated from switching signals to avoid display artifacts.
Common pitfalls when using the EFM32LG880F256G: (1) failing to enable the peripheral clock before configuring GPIO alternate functions - registers silently retain previous state; (2) using EM2/EM3 sleep modes without retaining GPIO state - some pins will revert to analog input, increasing leakage; (3) overlooking the 1.98 V minimum supply when designing for 1.8 V rails - use the EFM32LG880F256G-E variant only with rails >= 1.98 V. Always validate Stop-mode current with a uA-range multimeter on a finalized board, not the dev kit.
Informations de conformité
RoHS compliant per Silicon Labs product page; lead-free reflow profile per JEDEC J-STD-020. AEC-Q100 qualification not documented for this part - choose automotive-grade EFM32 variants for AEC-Q100 compliance.
