The DG534A is a digitally selectable 4-channel or dual 2-channel multiplexer. The DG538A is an 8-channel or dual 4-channel multiplexer. On-chip TTL-compatible address decoding logic and latches with data readback are included to simplify the interface to a microprocessor data bus. The low on-resistance and low capacitance of the these devices make them ideal for wideband data multiplexing and video and audio signal routing in channel selectors and crosspoint arrays. An optional negative supply pin allows the handling of bipolar signals without dc biasing.