Semiconductor integrated circuit device having improved input/ou

Details Semiconductor integrated circuit device having improved input/ou Semiconductor integrated circuit device having improved input/ou

1989-04-06

1990-11-13

Miller, Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307465, 307243, 307475, H03K 333, H03K 3335

Patent

active

049704109

ABSTRACT:
A semiconductor integrated circuit device includes an external terminal, an internal logic circuit, and an input/output interface circuit. The input/output interface circuit includes an input circuit, a selection circuit and an output circuit. The input circuit receives an input signal and supplies the internal logic circuit with the same. The selection circuit selects either the input signal supplied from the input circuit or an output signal supplied from the internal logic circuit. The output circuit outputs the selected one of the input signal and output signal to the external terminal. A loop circuit is formed by the input circuit, selection circuit and output circuit. The loop circuit logically includes an odd number of inverters.

REFERENCES:
patent: 4124899 (1978-11-01), Birkner et al.
patent: 4684830 (1987-08-01), Tsui et al.
patent: 4789951 (1988-12-01), Birkner et al.
patent: 4857773 (1989-08-01), Takata et al.

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit device having improved input/ou does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit device having improved input/ou, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit device having improved input/ou will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-778617