Four-channel USB-UART IC boosts server management

A high-speed USB-to-UART bridge, MaxLinear’s Carmel MxL81434 supports console access and infrastructure management in AI data centers and hyperscale cloud environments. The highly integrated device includes USB 2.0 High-Speed (480 Mbps) connectivity, four independent UART channels operating at up to 15 Mbps each, an I2C master, and 32 GPIOs for server and rack-scale management designs.

Carmel extends MaxLinear’s USB-to-UART portfolio, increasing the maximum UART data rate to 15 Mbps and doubling the transmit and receive FIFO size. The 1024-byte FIFOs help sustain high throughput and reduce host processor overhead, while the integrated I2C master and 32 GPIOs consolidate management, monitoring, and debugging functions. Low-latency console connectivity supports faster system bring-up, recovery, diagnostics, and provisioning.
The USB-to-UART bridge provides ±15-kV HBM ESD protection for demanding server and data center environments.
Samples of the Carmel MxL81434 are expected to be available Q4 2026.
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