SN74LVT16500DL

Overview

The SN74LVT16500 is a 3.3-V ABT 18-bit universal bus transceiver with 3-state outputs, designed for low-voltage operation and mixed-mode signal support. It combines D-type latches and flip-flops to enable transparent, latched, or clocked modes. The device supports unregulated battery operation down to 2.7 V and features active bus-hold circuitry on data inputs. It utilizes Advanced BiCMOS technology for low static power dissipation and includes distributed VCC and GND pins to minimize high-speed switching noise.

Feature Summary

• Combines D-type latches and flip-flops for flexible transparent, latched, or clocked operation
• Supports mixed-mode signal operation with 5-V input/output voltages alongside 3.3-V VCC
• Features active bus-hold circuitry on data inputs to eliminate the need for external pullup/pulldown resistors
• Utilizes distributed VCC and GND pin configuration to minimize high-speed switching noise

Applications

• Mixed-mode signal interfaces between 5-V and 3.3-V systems
• Unregulated battery-powered applications requiring operation down to 2.7 V
• High-density PCB layouts utilizing flow-through architecture

Procurement Notes

Verify component status before procurement as the SN74LVT16500DL variant is listed as obsolete in official documentation. Confirm availability of alternative packages such as the DL (SSOP) or DGG (TSSOP) variants. Ensure that design requirements align with the specified operating temperature range of -40°C to 85°C for commercial grade devices. Check for RoHS compliance details specific to the ordered package option.

Selection Notes

Select this component when an 18-bit widebus interface is required with mixed voltage compatibility. The device is suitable for designs needing flexible data storage modes via its universal bus transceiver architecture. Consider the SSOP or TSSOP packages for space-constrained applications. Verify that the system environment supports the specified 3.3-V supply voltage and that live insertion requirements are met by the device's inherent capabilities.

Part Context

This part belongs to Texas Instruments' Widebus family of logic ICs, specifically within the ABT (Advanced BiCMOS Technology) series. It is categorized as a universal bus transceiver designed for high-performance digital interfaces. The device shares architectural similarities with other members of the family but is distinct in its 18-bit width and combined latch/flip-flop functionality.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.