Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1996-11-21
1999-07-06
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
327108, 327379, 327374, 326 21, 326 27, 326 83, H03K 5153, H03K 19017
Patent
active
059202106
ABSTRACT:
A digital interface circuit has two inverters with different switching points, one below and one above the nominal transition point of the circuit. Each inverter controls both pull-up and pull-down output transistors. The inverter with the low switching point controls the low-to-high signal transition, while the inverter with the high switching point controls the high-to-low signal transition. Pass gates responsive through delay elements to either the circuit input, an inverter output, or the circuit output isolate the other inverter from the output transistors. The pass gates may also be tristatable by means of a logical combination of the delayed pass gate enable signals with output enable signals. In yet another embodiment, the pair of inverters are replaced by a single inverter with dual switching points.
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T. Iima et al., "Capacitance Coupling Immune, Transient Sensitive Accelerator for Resistive Interconnect Signals of Sub-quarter Micron ULSI", IEEE Journal of Solid-State Circuits, vol. 31, No. 4, Apr. 1996, pp. 531-536.
Callahan Timothy P.
McGuire, Jr. John P.
Protsik Mark
Schneck Thomas
Shin Eunja
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