SCBS232A - JANUARY 1991 - REVISED JULY 1994
Series Resistors, So No External Resistors Are RequiredEPIC-IIB is a trademark of Texas Instruments Incorporated.
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. Taken together with the ŽABT2241 and ŽABT2244, these devices provide the choice of selected 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.
The ŽABT2240 is organized as two 4-bit line drivers with separate 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.
The outputs, which are designed to sink up to 12 mA, include 25- series resistors to reduce overshoot and undershoot.
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.
The SN74ABT2240 is available in TI's shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54ABT2240 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT2240 is characterized for operation from -40°C to 85°C.
View more information about generic part numbers:SN74ABT2240
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