Patent · US Active

Output driver and semiconductor apparatus having the same

US8471602B2 · kind B2 · utility

6Cited by

4References

16Claims

0Family size

Assignee

SK hynix Inc. · KR

Inventors

Jun-Woo Lee · Seongnam-si, KR
Dae-Han Kwon · Seojong-myeon, KR
Taek-Sang Song · Icheon-si, KR

Key dates

Filing date	Dec 31, 2010
Grant date	Jun 25, 2013
Priority date	—
Expiry date	May 13, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH03K19/018528
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An output driver includes: a pull-up signal generation unit configured to control a pulse width of first data and output a pull-up pre-drive signal; a pull-down signal generation unit configured to control a pulse width of second data and output a pull-down pre-drive signal; a pull-up pre-driver unit configured to receive the pull-up pre-drive signal and generate a pull-up main drive signal; a pull-down pre-driver unit configured to receive the pull-down pre-drive signal and generate a pull-down main drive signal; a pull-up main driver unit configured to charge an output node according to the pull-up main drive signal; and a pull-down main driver unit configured to discharge the output node according to the pull-down main drive signal.

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