SN74ALVTH16827DL

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVTH16827DL is a 20-bit buffer and line driver utilizing Advanced BiCMOS Technology (ABT). It operates at 2.5-V or 3.3-V VCC with support for mixed-mode signal environments, allowing 5-V input and output voltages while the supply ranges from 2.3 V to 3.6 V. The device features two independent 10-bit sections with separate output-enable signals. It provides high drive capabilities of -32 mA/64 mA at 3.3 V and includes active bus-hold circuitry on data inputs.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation by interfacing 5-V systems with 2.3-V to 3.6-V logic levels
• Features power-off disabling of outputs to permit live insertion without driver conflict
• Incorporates active bus-hold circuitry on data inputs to prevent floating buses without external resistors
• Utilizes flow-through architecture and distributed VCC/GND pins to minimize switching noise

Buffers, Drivers, Receivers, Transceivers Applications

• High-density memory buffering in mixed-voltage system architectures
• Clock distribution and buffering for multi-drop buses
• Data acquisition systems requiring isolation between 5-V and low-voltage domains

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component status as the SN74ALVTH16827DL is listed as obsolete and production has ceased. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing SSOP-56 footprints during design updates. Review datasheet specifications for absolute maximum ratings to validate operational limits against current system requirements.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing 20-bit widebus interfaces requiring TTL-compatible inputs with 2.5-V or 3.3-V outputs. The ABT technology offers lower static power dissipation compared to standard CMOS alternatives. Consider the SSOP-56 package constraints and verify that the required propagation delay and drive strength meet the specific timing and load requirements of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALVTH16827 family, which includes variants like the SN54ALVTH16827 characterized for military temperature ranges. The DL suffix specifically denotes the Plastic Shrink Small-Outline (SSOP) package with 56 pins. It is distinct from registered bus exchangers or transceivers within the broader ALVTH series.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALVTH16827DLR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused data inputs?

The device incorporates active bus-hold circuitry on all data inputs. This feature holds unused or floating inputs at a valid logic level, eliminating the need for external pullup or pulldown resistors.

What is the behavior of the outputs during power-up and power-down?

The outputs enter a high-impedance state when VCC is between 0 and 1.2 V. This prevents driver conflicts during power transitions. To ensure this state above 1.2 V, the OE pin should be tied to VCC via a pullup resistor.