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74LVTH162244DLRG4 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
74LVTH162244DLRG4 3.3-V ABT 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS TI
Texas Instruments TI
74LVTH162244DLRG4 Datasheet PDF : 17 Pages
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SN54LVTH162244, SN74LVTH162244
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS258N – JUNE 1993 – REVISED NOVEMBER 2006
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
The 'LVTH162244 devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) VCC operation, but
with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four
4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical
active-low output-enable (OE) inputs.
The outputs, which are designed to source or sink up to 12 mA, include equivalent 22-series resistors to
reduce overshoot and undershoot.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown
resistors with the bus-hold circuitry is not recommended.
When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, 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.
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.
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