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.