Method and apparatus for a voltage responsive RESET for EEPROM
US6556478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2002 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Apr 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An under voltage lockout {overscore (RESET)} circuit is connected to the {overscore (RESET)} terminal of a EEPROM. The EEPROM is used in a system which may include a computer or processor and which may be used in space. The under voltage lockout {overscore (RESET)} circuit maybe an under voltage lockout circuit used on a LinFinity SG1526/B or a Unitrode UC1526 regulating pulse width modulator which maintain the {overscore (RESET)} voltage low at all values of power supply voltage source voltage less than a predetermined level. In one embodiment the under voltage lockout {overscore (RESET)} circuit output voltage does not have a “floating voltage” which rises to a level higher than its value when a comparator initially senses that a power supply voltage source voltage is less than the predetermined amount. This is a flat {overscore (RESET)} characteristic under voltage lockout. The {overscore (RESET)} circuit in combination with the EEPROM and computer has particular utility in space applications when a “floating voltage” may be undesirable and may cause failure in a satellite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.