CD74HCT258E.A中文资料德州仪器数据手册PDF规格书

4.5-V to 5.5-V VCC Operation

Wide Operating Temperature Range of

–55°C to 125°C

Balanced Propagation Delays and

Transition Times

Standard Outputs Drive Up To 10 LS-TTL

Loads

Significant Power Reduction Compared to

LS-TTL Logic ICs

Inputs Are TTL-Voltage Compatible

description/ordering information

These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized

systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level.

To ensure the high-impedance state during power up or power down, G should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.