74LVT16652ADGG,112

Overview

The 74LVT16652A is a high-performance BiCMOS 3.3 V 16-bit bus transceiver and register featuring 3-state outputs. It operates within a supply voltage range of 2.7 V to 3.6 V and supports TTL input/output switching levels with interface capability to 5 V systems. The device provides two independent 8-bit transceivers or one 16-bit transceiver, utilizing complementary output enable inputs (OEAB/OEBA) and select control inputs (SAB/SBA) for real-time or stored data transfer. It includes bus-hold data inputs, power-up reset, and latch-up protection exceeding 500 mA per JESD78.

Feature Summary

• Configurable as two 8-bit or one 16-bit transceiver with internal D-type flip-flops for data storage
• Bus-hold data inputs eliminate the need for external pull-up resistors on unused inputs
• Complementary output enable and select control inputs manage real-time versus stored data transfer modes
• Power-up 3-state and live insertion/extraction permitted without bus current loading

Applications

• High-speed 16-bit bus interfaces in computing systems
• Memory buffer applications requiring registered data storage
• System interconnects between 3.3 V logic and 5 V tolerant peripherals
• Bus management circuits requiring simultaneous real-time and stored data handling

Procurement Notes

Verify the manufacturer status carefully, as the original NXP Standard Product business transitioned to Nexperia. Confirm that the specific ordering suffix matches the required package type, such as TSSOP56 (SOT364-1) or SSOP56 (SOT371-1). Ensure compatibility with the intended operating temperature range of -40 °C to +85 °C before finalizing procurement specifications.

Selection Notes

Select this component when a 16-bit bidirectional bus interface with optional registration is required at 3.3 V. It is suitable for designs needing 5 V tolerance on I/O pins and robust ESD protection. Consider the TSSOP56 package for space-constrained PCB layouts. Verify that the maximum clock frequency requirements align with the specified dynamic characteristics under the target supply voltage conditions.

Part Context

This device belongs to the LVT logic family, designed for low-voltage operation. It serves as a bridge between different voltage domains while providing data latching capabilities. The product was originally manufactured by Philips Semiconductors/NXP and is now produced by Nexperia following the spin-off of the standard product business in February 2017.

Replacement Considerations

Public confirmed substitute part numbers include SN74LVTH16652DL from Texas Instruments.