Birch, Stewart, Kolasch & Birch, LLP
Power-on control circuit and input/output control circuit
A power-on control circuit is provided. The power-on control circuit includes first and second power terminals, a switch circuit, an inverter chain circuit, and a capacitor. The switch circuit has a control terminal receiving a first control signal, an input terminal coupled to the second power terminal, and an output terminal coupled to a first node. The inverter chain circuit has an input terminal coupled to the first node and generates the first control signal. The capacitor is coupled between the first node and a ground. When the first power terminal receives a first voltage and the second power terminal does not receive a second voltage, the switch circuit is turned on according to the first control signal. When the first power terminal receives the first voltage and the second power terminal receives the second voltage, the switch circuit is turned off according to the first control signal.
Vanguard International Semiconductor Corporation
G G
G05F G05F
inventional inventional
Chieh-Yao Jung-Tsun Hung-Wei Shao-Chang
Chuang Chuang Chen Huang