This datasheet introduces the features and characteristics of SN54LVTH244A and SN74LVTH244A, including working voltage, input and output voltage, input current, output current, package, etc.
The SN54LVTH244A and SN74LVTH244A devices are designed specifically for low-voltage (3.3-V) VCC operation but can provide a TTL interface to a 5-V system environment. They are organized as two 4-bit line drivers with separate output-enable inputs, featuring active bus-hold circuitry to hold unused or floating data inputs at a valid logic level.
These devices support hot-insertion applications using latch-up and power-up 3-state features. The latch-up circuitry disables outputs during power-down to prevent damaging current backflow, while the power-up 3-state circuitry places outputs in a high-impedance state during power transitions to prevent driver conflicts.
| Operating Temperature Range (SN54LVTH244A) | -55°C to 125°C |
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Yes, they have the capability to provide a TTL interface to a 5-V system environment.
The devices are organized as two 4-bit line drivers with separate output-enable (OE) inputs.