Realtek RTL8187B Highly integrated cost-effective Wireless LAN USB 2.0 network interface.
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Realtek RTL8187B Description

The Realtek RTL8187B is a low-profile highly integrated cost-effective Wireless LAN USB 2.0 network interface controller that integrates a USB 2.0 PHY, SIE (Serial Interface Engine), 8051 MCU, a Wireless LAN MAC, and a Direct Sequence Spread Spectrum/OFDM baseband processor onto one chip. It provides USB high speed (480Mbps), and Full Speed (12Mbps), and supports 9 endpoints for transfer pipes. To reduce protocol overhead, the RTL8187B supports Short InterFrame Space (SIFS) burst mode to send packets back-to-back. A Protection mechanism prevents collisions among 802.11b nodes. The RTL8187B fully complies with IEEE 802.11a/b/g, WMM, 802.11e, and CCX specifications. Features * 128-Pin LQFP with ‘Green’ package * State machine implementation without external memory (RAM, flash) requirement * Complies with IEEE 802.11a/b/g standards * Supports descriptor-based buffer management * Integrated Wireless LAN MAC and Direct Sequence Spread Spectrum/OFDM Baseband Processor in one chip * Enhanced signal detector, adaptive Frequency domain Equalizer, and soft-decision Viterbi decoder to alleviate severe multipath effects * Processing Gain compliant with FCC

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