SN74AHCT244PW .

The SN74AHCT244PW is an octal Buffer/Driver designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers and bus-oriented receivers and transmitters. The SNx4AHCT244 device is organized as two 4-bit buffer/line driver with separate output-enable (OE) inputs. When OE is low, the device passes 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 pull-up resistor and the minimum value of the resistor is determined by the current-sinking capability of the driver.

• Inputs are TTL-voltage compatible
• VCC is optimized at 5V
• Allows up voltage translation from 3.3 to 5V - Inputs accept VIH levels of 2V
• Slow edge rates minimize output ringing
• Latch-up performance exceeds 250mA per JESD 17
• Green product and no Sb/Br