Cypress Semiconductor Corporation

Sanjeev Kumar Maheshwari

Anup Nayak

Roger J Bettman

Ramin Ighani

An input gate protection circuit has a pass transistor having a source coupled to an input signal. A first voltage range control circuit is coupled to a gate of the pass transistor. A second voltage range is control circuit coupled to the gate of the pass transistor.

Input gate protection circuit and method

A programmable logic device comprising a macro-cell flip-flop configured to store (i) a first input when the programmable logic device is in a normal mode and (ii) a second input when the programmable logic device is in a test mode.

Macro-cell flip-flop with scan-in input

An apparatus comprising a first circuit and a capacitor circuit. The first circuit may be configured to generate an output signal having a frequency in response to (i) an input signal having a reference frequency and (ii) one or more adjustment signals. The capacitor circuit may be configured to adjust the frequency of the output signal. The one or more adjustment signals may provide constant current biasing of the first circuit.

Low operating voltage crystal oscillator

An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an output signal having a first voltage level and a first control signal in response to (i) an input signal having a second voltage level, (ii) an enable signal, and (iii) a plurality of node voltages. The second circuit may be configured to generate the plurality of node voltages in response to the first control signal. The first circuit may be configured to limit the first voltage level.

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Taitaran, India

Sanjeev Kumar Maheshwari