FEATURES

· Controlled Baseline

– One Assembly/Test Site, One Fabrication

Site

· Extended Temperature Performance of up to

–55°C to 125°C

· Enhanced Diminishing Manufacturing

Sources (DMS) Support

· Enhanced Product-Change Notification

· Qualification Pedigree (1)

· 4.5-V to 5.5-V VCC Operation

· Inputs Accept Voltages to 5.5 V

· Max tpd of 9.5 ns at 5 V

· Inputs Are TTL Compatible

DESCRIPTION/ORDERING INFORMATION

The SN74ACT244-EP octal buffer/driver is designed specifically to improve the performance and density of

3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low,

the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the

high-impedance state.

To ensure the high-impedance state during power up or power down, OE 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.