Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Slope control of leading or trailing edge of rectangular or...
Patent
1997-10-02
2000-05-23
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Slope control of leading or trailing edge of rectangular or...
327108, 327541, H03K 512
Patent
active
060669713
ABSTRACT:
Buffering circuitry (10) uses pull-up slew rate control circuitry (12) and pull-down slew rate control circuitry (14) to control the rising and falling slew rates of an output signal (50) provided by buffering circuitry (10). Pull-up slew rate control circuitry (12) and pull-down slew rate control circuitry (14) may be used in an embodiment of buffering circuitry (10) which provides a higher output voltage VHIGH than the standard power voltage VPOWER which is used to power most of the circuitry. Buffering circuitry (10) utilizes distributed resistive elements (89-91) to provide improved electrostatic discharge protection. Buffering circuitry (10) utilizes a low power level shifter (16). Voltage reference generation circuitry (18) may be used to provide a stable low power reference voltage VREF (42).
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Pappert Bernard J.
Whatley Roger A.
Motorola Inc.
Wells Kenneth B.
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