TI SN74ABT2240APWRE4

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the ’ABT2241 and ’ABT2244A, these devices provide combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in.

These devices are organized as two 4-bit line drivers with separate OE inputs. When OE(overline) is low, the devices pass inverted data from the A inputs to the Y outputs. When OE(overline) is high, the outputs are in the high-impedance state.

The outputs, which are designed to sink up to 12 mA, include equivalent 25-Ω series resistors to reduce overshoot and undershoot.

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

• Output Ports Have Equivalent 25-Ω Series Resistors, So No External Resistors Are Required
• State-of-the-Art EPIC-ΙΙB BiCMOS Design Significantly Reduces Power Dissipation
• Typical vOLP (Output Ground Bounce) <1V at Vcc = 5V, TA = 25°C
• Latch-Up Performance Exceeds 500 mA Per JESD 17
• ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Plastic (N) and Ceramic (J) DIPs, and Ceramic Flat (W) Package