EFM8LB12F32ES0-B-QFN32
IC MCU 8BIT 32KB FLASH 32QFN
Embedded Microcontrollers
32-UFQFN Exposed Pad
Laser Bee
Obsolete
$2.39 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Silicon Labs |
| Model | EFM8LB12F32ES0-B-QFN32 |
| Package / Case | 32-UFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Core Processor | CIP-51 8051 |
| Speed | 72MHz |
| Program Memory Size | 32KB (32K x 8) |
| RAM Size | 2.25K x 8 |
| Number of I/O | 29 |
| Data Converters | A/D 20x14b; D/A 4x12b |
| Voltage - Supply | 2.2V ~ 3.6V |
| Connectivity | I²C, SMBus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Supplier Device Package | 32-QFN (4x4) |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
EFM8LB12F32ES0-B-QFN32 by Silicon Labs is a CIP-51 8051 microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 32-UFQFN Exposed Pad package fits automated SMT assembly. Operating temperature is -40°C ~ 105°C (TA) — verify your application environment. Pin-compatible domestic alternatives include GigaDevice GD32 series and Artery AT32 series — note GD32 ADC specs may differ slightly from ST originals.
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All Technical Specifications
| Speed | 72MHz |
| RAM Size | 2.25K x 8 |
| Core Size | 8-Bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, SMBus, SPI, UART/USART |
| Number of I/O | 29 |
| Core Processor | CIP-51 8051 |
| Data Converters | A/D 20x14b; D/A 4x12b |
| Oscillator Type | Internal |
| Program Memory Size | 32KB (32K x 8) |
| Program Memory Type | FLASH |
| Voltage - Supply (Vcc/Vdd) | 2.2V ~ 3.6V |
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