Package Options Include Plastic ‘‘Small

Outline’* Packages, Ceramic Chip Carriers

and Flat Packages, and Plastic and Ceramic

DIPs

Dependable Texas Instruments Quality and

Reliability

description

The 'S134 feature three-state outputs that, when enabl-

ed, have the low impedance characteristics of a TTL

output with additional drive capability at high logic

levels to permit driving heavily lcaded lines without ex-

ternal pull-up resistors. When disabled, both output

transistors are turned off presenting a high-impedance

state to the bus so the output will act neither as a signifi-

cant load nor as a driver. The ‘S134 outputs are diabled

when G is high.