SN74ABT16540ADLG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT16540ADLG4 is a 16-bit inverting buffer/driver featuring 3-state outputs, manufactured using Texas Instruments' EPIC-II BiCMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to 85°C. The device provides high-drive capabilities with output currents up to -32 mA (high) and 64 mA (low). Propagation delays are typically 2.5 ns at 5 V, with maximum values of 4.3 ns. It utilizes a flow-through architecture for optimized PCB layout and includes distributed VCC and GND pins to minimize switching noise.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• EPIC-II BiCMOS design significantly reduces power dissipation compared to standard CMOS technologies.
• Flow-through architecture optimizes printed circuit board layout by aligning inputs and corresponding outputs.
• Distributed VCC and GND pin configuration minimizes high-speed switching noise during operation.
• Latch-up performance exceeds 500 mA per JEDEC Standard JESD-17.

Buffers, Drivers, Receivers, Transceivers Applications

• High-performance bus interface for wide data paths
• Clock drivers
• Buffering memory-address buses

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package marking matches ABT16540A on the component surface. Confirm the DL package designation corresponds to the 48-pin SSOP form factor required for your footprint. Ensure the suffix G4 indicates lead-free and RoHS compliance status as defined in the manufacturer's current packaging addendum before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring 16-bit parallel data buffering with independent control over two 8-bit sections. The dual output-enable gates allow flexible tri-state management. Consider the -40°C to 85°C industrial temperature rating for general commercial applications where military-grade ranges are unnecessary but robustness is required.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Widebus family of logic devices, designed for high-density digital systems. It is functionally compatible with other 74ABT16540 variants differing primarily in package type or manufacturing revision. The ADL suffix specifically denotes the plastic shrink small-outline package variant produced under standard catalog specifications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABT16540ADLR

Buffers, Drivers, Receivers, Transceivers FAQ

How are the output-enable functions controlled?

The device features two separate 8-bit sections, each with its own active-low output-enable gate. If either OE1 or OE2 input is high, all corresponding outputs enter a high-impedance state.

What is the recommended handling for unused inputs during power-up?

To ensure the high-impedance state during power-up or power-down, the OE inputs should be tied to VCC through a pullup resistor. The minimum resistor value depends on the driver's current-sinking capability.