Product Overview: 74ALVCH16373DGG from NXP

The 74ALVCH16373DGG is a high-performance, low-voltage 16-bit transparent D-type latch with 3-state outputs from NXP Semiconductors. This integrated circuit is designed for 1.65 V to 3.6 V V_CC operation. It is part of NXP's advanced LVC (Low Voltage CMOS) family, which offers a balanced trade-off between speed and power consumption, making it ideal for battery-powered and portable applications where power efficiency is crucial.

Featuring a bus-hold circuitry for all inputs, the 74ALVCH16373DGG ensures minimal cross-talk and signal integrity by maintaining the last valid input state whenever the input goes to a high-impedance. This functionality is particularly useful in multiplexed bus systems where the bus lines need to remain at a known state.

The device is equipped with two separate output enables (OE₁ and OE₂) for each octal, allowing for greater flexibility in controlling the output states. The OE inputs control the outputs so that the outputs will be in a high-impedance OFF-state when OE is high. When OE is low, the outputs will reflect the data (D0-D7, D8-D15) that is set up at the corresponding D-type latches.

The 74ALVCH16373DGG is housed in a 48-pin TSSOP (Thin Shrink Small Outline Package) type package, which is suitable for surface mount technology (SMT) and offers a compact footprint for space-constrained applications. The device also supports live insertion and withdrawal (hot insertion) to aid in system maintenance and upgrades without the need to power down the system.

With its fast propagation delay and edge-rate control features, the 74ALVCH16373DGG is designed to minimize the effect of output transition times on signal quality, making it an excellent choice for interfacing with high-speed microprocessors or FPGAs. The latch is fully specified for partial-power-down applications using I_OFF. The I_OFF circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

In summary, the 74ALVCH16373DGG from NXP is a versatile and reliable component for high-speed digital systems that require low power consumption and stable operation. Its robust feature set ensures that it can meet the stringent requirements of modern electronic devices.