NXP 74LVT16245BDGG: 16-Bit Bidirectional Transceiver with 3V LVTTL Interface and Bus-Hold

The NXP 74LVT16245BDGG is a high-performance, 16-bit bidirectional transceiver designed to facilitate data flow between two bidirectional buses. It is a key component in systems where non-volatile data buses must communicate without interference or data loss. This device is particularly engineered for 3.3V LVTTL (Low Voltage TTL) interfaces, making it ideal for modern low-voltage applications that require efficient signal translation and robust data integrity.

A defining feature of this transceiver is its bidirectional capability, which allows data to be transmitted in both directions between Port A and Port B. The direction of data flow is controlled by the Direction Control (DIR) input. A high level on DIR enables transmission from Port A to Port B, while a low level enables transmission from Port B to Port A. Additionally, the Output Enable (OE) input is used to disable both ports, placing the outputs in a high-impedance state, which is critical for preventing bus contention in multi-master systems.

One of the most significant advantages of the 74LVT16245BDGG is its integrated bus-hold circuitry. This feature eliminates the need for external pull-up or pull-down resistors by holding the last valid logic state on the input pins when the bus becomes floating. This ensures stable operation, reduces component count, and minimizes power consumption in applications where the bus may be tri-stated or disconnected.

The device is built with NXP’s advanced LVT (Low Voltage Technology), which offers high-speed operation while maintaining low power dissipation. It supports live insertion and extraction with power-off protection, thanks to its Ioff circuitry, which disables outputs when the VCC power supply is absent. This makes it suitable for hot-swappable applications.

Housed in a TSSOP-48 package, the 74LVT16245BDGG is designed for space-constrained environments. It is widely used in communication infrastructure, networking equipment, industrial automation, and computing systems where reliable bidirectional data transfer is essential.

ICGOOODFIND:

The NXP 74LVT16245BDGG stands out as a robust and efficient solution for bidirectional data transfer in 3.3V systems. Its integrated bus-hold function simplifies design and enhances reliability, while its support for live insertion makes it versatile for a wide range of applications. This transceiver combines performance, integration, and durability, making it a preferred choice for engineers seeking to optimize their bus interface designs.

Keywords:

Bidirectional Transceiver, Bus-Hold, 3.3V LVTTL, 16-Bit Interface, Hot Insertion