Automatic mode selection circuit for semiconductor memory device

Static information storage and retrieval – Powering

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

36518909, G11C 700

Patent

active

058187839

ABSTRACT:
An automatic mode selection circuit for automatically selecting low voltage transistor transistor logic and high-speed input/output interface modes in a semiconductor memory device. The automatic mode selection circuit comprises an external reference voltage pad for delivering an external reference voltage, an internal reference voltage generator for generating an internal reference voltage, a power-on detector for detecting a power-on time point and then generating a pulse signal for a predetermined time period, a switching circuit for switching the external reference voltage from the external reference voltage pad and the internal reference voltage from the internal reference voltage generator in response to an output signal from the power-on detector, a reference voltage detector connected between the external reference voltage pad and the switching circuit for detecting the external reference voltage from the external reference voltage pad, a comparator for comparing an output voltage from the reference voltage detector with the internal reference voltage from the internal reference voltage generator in response to the output signal from the power-on detector, and a latch circuit for latching an output signal from the comparator and supplying the latched signal to an output terminal.

REFERENCES:
patent: 5297097 (1994-03-01), Etoh et al.
patent: 5329168 (1994-07-01), Sugibayashi et al.
patent: 5363333 (1994-11-01), Tsujimoto
patent: 5396113 (1995-03-01), Park et al.
patent: 5408435 (1995-04-01), McClure et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Automatic mode selection circuit for semiconductor memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic mode selection circuit for semiconductor memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic mode selection circuit for semiconductor memory device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-86558

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.