AVC Logic Family Technology and Applications (Rev. A)

Texas Instruments (TI?) announces the industry?s first logic family to achieve maximum propagation delays of less than 2 ns at 2.5 V. TI?s next-generation logic is the Advanced Very-low-voltage CMOS (AVC) family. Although optimized for 2.5-V systems, AVC logic supports mixed-voltage systems because it is compatible with 3.3-V and 1.8-V devices. The AVC family features TI?s Dynamic Output Control (DOC?) circuit (patent pending). The DOC circuit provides enough current to achieve high signaling speeds, but automatically lowers the output impedance of the circuit during a signal transition and subsequently increases the impedance to reduce the overshoot and undershoot noise that is often found in high-speed logic. This feature of AVC logic eliminates the need for series damping resistors. AVC logic also has a power-off feature that disables outputs from the device when no power is applied.