摘要:
A semiconductor integrated circuit which has a CMOS inverter formed of p- and n-channel MOSFETs, and a D-type n-channel MOSFET coupled at the gate to the output terminal of the CMOS inverter, having one end coupled to a high voltage terminal and the other end coupled to the drain of the p-channel MOSFET.
摘要:
The invention provides a semiconductor integrated circuit, characteristics of which can be adjusted in accordance with storage data in a nonvolatile memory element. The semiconductor integrated circuit has a main semiconductor circuit having MOS transistors, and an adjusting circuit connected to the main semiconductor circuit so as to change the circuit characteristics of the main semiconductor circuit as needed. The adjusting circuit has MOS transistors and a plurality of fuse elements. The adjusting circuit causes a given fuse element to selectively disconnect in accordance with an input signal and generates at least one adjusting signal to adjust the circuit characteristics of the main semiconductor circuit.
摘要:
A protected MOS transistor circuit includes an input MOS transistor and a depletion mode MOS transistor having a drain-source current path connected between ground and the gate of the input MOS transistor of obviating rupture of the gate oxide of the input MOS transistor when power is off. The depletion mode MOS transistor's gate receives a control signal only when power is on which renders the depletion mode MOS transistor nonconductive when power is on. The depletion mode MOS transistor is conductive when power is off.
摘要:
A multifunction terminal circuit having an optional circuit (12) a signal terminal (10) connected to the optional circuit; an unidirectional conductor means (14) connected to the signal terminal; and a circuit means (16) whose coupling node (A) is coupled with the signal terminal through the unidirectional conductor means.The circuit means determines a conduction state of the unidirectional conductor means in accordance with a potential difference between the signal terminal and the coupling node.