74ABT16245BDL,112

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT16245BDL,112 is a 16-bit bus transceiver with 3-state outputs manufactured by Nexperia. It operates within a supply voltage range of 4.5 V to 5.5 V and features BiCMOS technology for high-speed performance. The device includes two output enables (1OE and 2OE) and two direction control inputs (1DIR and 2DIR). It supports partial power-down applications via IOFF circuitry, which disables outputs to prevent backflow current. The component provides an output capability of +64 mA and -32 mA, ensuring direct interface compatibility with TTL levels.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features IOFF circuitry that disables outputs during partial power-down to prevent potentially damaging backflow currents through the device.
• Provides multiple VCC and GND pins designed to minimize switching noise during operation.
• Includes ESD protection exceeding 2000 V under HBM conditions and 1000 V under CDM conditions.
• Supports live insertion and extraction operations without causing system interference.

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down applications requiring controlled backflow prevention
• Bidirectional data bus interfaces in 5V logic systems
• Systems requiring direct interfacing with TTL level signals

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type against your design requirements, as the datasheet revision history indicates changes to available packages. Confirm that the ordering suffix matches the required lead frame or tape-and-reel specifications. Ensure the component meets the functional safety standards if used in critical applications, noting that non-automotive qualified products are not suitable for automotive use without customer risk acceptance.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a 16-bit bidirectional interface is required at 5V logic levels. The device is suitable for designs needing high drive strength and low input capacitance. Consider the SSOP48 or TSSOP48 package availability based on board space constraints. Verify that the operating temperature range of -40 °C to +85 °C aligns with the environmental conditions of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT16245B family of 16-bit bus transceivers. The 'DL' suffix typically denotes an SSOP48 package, although recent revisions may prioritize TSSOP48 variants. It is a standard logic IC used for data routing between different bus segments in digital electronic systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for the 74ABT16245BDGG variant if a TSSOP48 package is preferred over the DL designation. Ensure any substitute maintains the same 4.5V to 5.5V supply voltage range and 3-state output characteristics.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the IOFF circuitry function?

The IOFF circuitry disables the outputs when the device is powered down, preventing potentially damaging backflow current through the device even if external voltages are present on the I/O lines.

What is the purpose of having multiple VCC and GND pins?

Multiple VCC and GND pins are included to minimize switching noise and improve power distribution stability across the 16-bit bus structure.