0
ACTIVE
Technology family |
ABT |
Supply voltage (min) (V) |
4.5 |
Supply voltage (max) (V) |
5.5 |
Number of channels |
20 |
IOL (max) (mA) |
12 |
Supply current (max) (µA) |
32000 |
IOH (max) (mA) |
-12 |
Input type |
TTL-Compatible CMOS |
Output type |
3-State |
Features |
Balanced outputs, Damping resistors, Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns) |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 85 |
SSOP (DL)-56-190.647 mm² 18.42 x 10.35
Series Resistors, So No External Resistors Are RequiredWidebus is a trademark of Texas Instruments.
The ABT162827A devices are noninverting 20-bit buffers composed of two 10-bit buffers with separate output-enable signals. For either 10-bit buffer, the two output-enable (1OE1 and 1OE2, or 2OE1 and 2OE2) inputs must both be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer are in the high-impedance state.
The outputs, which are designed to source or sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
To ensure the high-impedance state during power up or power down, OE shall be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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