EFM8BB52F32G-C-QFN20

Silicon Labs

General info

Part Number

Manufacturer

Silicon Labs

Description:

EFM8 BB52 8-BIT MCU, 1.8-5.5 VOL

Reference Price (USD)

$1.78000

500+

$1.7622

1000+

$1.7444

1500+

$1.7266

2000+

$1.7088

2500+

$1.691

Exquisite packaging

Discount

TT / Paypal / Credit Card / Western Union / Money Gram

EFM8BB52F32G-C-QFN20

$1.78

Product details

The EFM8BB52F32G-C-QFN20 by Silicon Labs pioneers ultra-reliable Embedded - Microcontrollers for railway signaling systems. Its fail-safe architecture and SIL4 certification make it the preferred choice for vital train control applications.Featuring CIP-51 8051 technology with lockstep cores, this microcontroller detects processing errors within 50ns to meet CENELEC EN 50128 safety requirements.The 8-Bit architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 50MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With I²C, SMBus, SPI, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated Brown-out Detect/Reset, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.16 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.32KB (32K x 8) accommodates SIL4-certified application code with complete diversity between primary and secondary safety channels.The FLASH implementation includes periodic memory scrubbing that detects and corrects radiation-induced soft errors.2.25K x 8 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 1.8V ~ 5.5V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.Safety-certified A/D 16x12b SAR; D/A 1x10b perform continuous self-calibration to maintain 0.1% accuracy in axle counter sensor interfaces.The Internal includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Rated for -40°C ~ 85°C (TA), the device operates reliably in trackside enclosures without climate control.Surface Mount packaging withstands 5g vibration and 50g shock loads specified in EN 61373 for rolling stock equipment.The 20-WFQFN Exposed Pad provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 20-QFN (3x3), the microcontroller includes complete safety documentation for railway certification processes.