The MC100SX1451FI100 AutoBahn chip is a highspeed serial toparallel, paralleltoserial transceiver. The AutoBahn can be used to implement a highspeed, halfduplex, bidirectional serial data link with an effective data transfer rate of 100MByte/sec. A higher performance AutoBahn chip, with user selectable serial data transfer rates of 100 or 200MByte/s, is planned (see the MC100SX1451FI200 datasheet).This serial link can be used to establish multipoint or pointtopoint connections. A unique differential cutoff driver switches from a standard PECL VOH level to cutoff. In the cutoff state the outputs present a high impedance which is required to implement a true shared bus. The part features a 32bit wide parallel TTL compatible I/O interface that can connect directly with standard memory or bus transceiver devices. The control pins are all TTL compatible to simplify interfacing requirements. The serial interface is PECL (Positive Emitter Coupled Logic) which provides excellent transmission line drive capability. Because the serial bus is implemented using differential ECL technology, the receiver circuitry exhibits excellent common mode noise rejection.