2-Bit LVTTL/GTLP Transceiver

The GTLP2T152 is a 2-bit transceiver that provides LVTTL- to-GTLP signal level translation. Data directional control is handled with a transmit/receive pin. High-speed Backplane operation is a direct result of GTLPs reduced output swing (<1V), reduced input threshold levels and output edge rate control. The edge rate control minimizes bus-settling time. GTLP is a Fairchild Semiconductor derivative of the Gun- ning Transistor Logic (GTL) JEDEC standard JESD8-3. Fairchilds GTLP has internal edge-rate control and is pro- cess, voltage and temperature compensated. GTLPs I/O structure is similar to GTL and BTL but offers different out- put levels and receiver threshold. Typical GTLP output volt- age levels are: VOL = 0.5V, VOH = 1.5V, and VREF = 1V. By Fairchild Semiconductor