Patent · US Expired

Differential flipflop circuit operating with a low voltage

US5844437A · kind A · utility

39Cited by
3References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 28, 1997
Grant dateDec 1, 1998
Priority date
Expiry dateMar 28, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K3/289
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

In a flipflop circuit, each of master and slave latch/hold circuits is constituted of differential pairs consisting of transistors each connected between VCC and VSS without being in series with another transistor between VCC and VSS. A clock driving circuit has a pull-down function responding to a pair of complementary clocks so as to pull down the level of a pair of complementary data signals supplied to each latch/hold circuit. With this arrangement, the flipflop circuit composed of bipolar transistors can operate with a low voltage of not greater than 1 V.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.