Silicon Labs EFM8BB21F16I-C-QFN20R
MPNEFM8BB21F16I-C-QFN20R
End of Life
IC MCU 8BIT 16KB FLASH 20QFN
$1.86Ref. price · indicative, final on quote
Packaging20-WFQFN Exposed Pad
RoHSRoHS Compliant
SeriesBusy Bee
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Busy Bee |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.2V ~ 3.6V |
| Operating temperature | -40°C ~ 125°C (TA) |
| Speed | 50MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| 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) | 16 |
| Core processor | CIP-51 8051 |
| Case | 20-WFQFN Exposed Pad |
| Data converters | A/D 15x12b |
| Program memory size | 16KB (16K x 8) |