BU7985KVT

Overview

The BU7985KVT is a serial deserializer manufactured by ROHM Semiconductor, designed to convert low-voltage differential signaling (LVDS) inputs into parallel LVCMOS outputs. It features an 8-input to 56-output configuration, supporting data rates up to 784 Mbps with a maximum clock frequency of 112 MHz. The device operates within a supply voltage range of 3.0 V to 3.6 V and functions reliably across an operating temperature range of -20°C to 85°C. Housed in a TQFP100V package measuring 16.0x16.0 mm with a thickness of 1.2 mm, it includes fail-safe capabilities and variable output drive strength.

Feature Summary

• Converts eight LVDS input channels into fifty-six parallel LVCMOS output lines for high-speed data reception.
• Supports flexible synchronization by allowing data output alignment to either the rising or falling edge of the clock signal.
• Incorporates fail-safe mechanisms to ensure stable operation under undefined input conditions.

Applications

• High-speed digital signal reception in industrial communication systems
• Data acquisition interfaces requiring LVDS to parallel logic conversion
• Embedded systems utilizing differential signaling for noise immunity

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity levels prior to assembly. Review official discontinuance notifications for final purchase timing and last-time buy deadlines to ensure supply continuity for existing production lines.

Selection Notes

Select this component when an 8-to-56 channel deserialization ratio is required with LVCMOS compatibility. Ensure the design accommodates the 100-pin TQFP footprint and 3.3 V nominal supply. Validate that the system clock does not exceed 112 MHz and that thermal management supports the specified operating temperature range without additional cooling.

Part Context

This part belongs to the BU7980 series of LVDS serializers and deserializers from ROHM Semiconductor. It serves as a receiver counterpart to serializer models like the BU7988KVT, facilitating bidirectional high-speed data links. The series is engineered for applications demanding reliable differential signal transmission over noisy environments.

Replacement Considerations

Consult official substitution guides for equivalent deserializers with matching pinouts and electrical characteristics. Verify that alternative components support the same 8:56 input-output ratio and LVCMOS output levels before integration into existing designs.