Nexperia USA Inc. 74LVT162373DGG,518

Overview

74LVT162373DGG,518 from Nexperia is a 3.3 V 16-bit transparent D-type latch with integrated 30 Ω series output termination resistors and non-inverting 3-state bus-compatible outputs. It functions as two independent 8-bit latches or one unified 16-bit latch, supports TTL-level inputs/outputs, interfaces directly with 5 V systems, and operates across –40 °C to +85 °C. It is used in memory address drivers, clock distribution networks, and high-noise bus receivers/transmitters.

For engineers reviewing the 74LVT162373DGG,518 datasheet, 74LVT162373DGG,518 pinout, 74LVT162373DGG,518 application, or 74LVT162373DGG,518 equivalent, key selection considerations include its 30 Ω on-die output termination, bus-hold inputs eliminating external pull-ups, 12 mA drive capability, and dual latch-enable architecture enabling flexible partitioning of data paths.

Technical Context

The device implements a BiCMOS transparent latch architecture where Q outputs follow D inputs when LE is HIGH, and capture D values one setup time before LE's HIGH-to-LOW transition. Each output includes matched 30 Ω series resistance in both HIGH and LOW states to suppress ringing and reduce EMI without external components.

It features bus-hold circuitry on all data inputs (1D0–1D7, 2D0–2D7), enabling stable logic levels on unused pins without external biasing. The dual OE/LE control structure (1OE/1LE for first 8 bits, 2OE/2LE for second 8 bits) allows independent gating and latching of two 8-bit data groups within a single TSSOP48 package.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit transparent latch applications.

Compared with SN74LVC16373ADGGR and 74ALVCH162373T, the 74LVT162373DGG,518 uniquely combines on-die 30 Ω termination, bus-hold inputs, and industrial temperature range in a single TSSOP48 package-reducing component count, improving noise immunity, and simplifying layout for memory, clock, and bus interface designs.

Availability

74LVT162373DGG,518 is available at Aetrix Electronics and suitable for memory address latching, high-speed clock distribution, and industrial bus interface applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for 74LVT162373DGG,518 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert specializing in high-performance, high-reliability logic, analog, and discrete components, with leadership in automotive and industrial-grade solutions.

The 74LVT series targets high-speed, noise-sensitive digital interface applications requiring robust 3.3 V operation, bus compatibility, and integrated signal integrity features like on-die termination and bus-hold.

FAQ

Does the 74LVT162373DGG,518 require external pull-up resistors on unused data inputs?

No. All data inputs (1D0–1D7, 2D0–2D7) feature integrated bus-hold circuitry that maintains valid logic states without external components. This eliminates the need for pull-up or pull-down resistors on floating inputs, reducing BOM count and PCB footprint while preventing metastability in unconnected configurations.

Can the 74LVT162373DGG,518 interface directly with a 5 V microcontroller bus?

Yes. Its inputs are TTL-compatible and 5 V tolerant (VI up to +5.5 V), and outputs swing rail-to-rail within the 3.3 V supply domain. When driving a 5 V bus, the device's 30 Ω series termination and ±12 mA drive capability ensure clean signal edges without overvoltage risk to the 5 V receiver, provided the 5 V system accepts 3.3 V logic-high thresholds.

What is the function of the dual latch-enable (1LE/2LE) and output-enable (1OE/2OE) pins?

1LE/1OE control the first 8-bit section (1D0–1D7 → 1Q0–1Q7); 2LE/2OE control the second (2D0–2D7 → 2Q0–2Q7). This allows independent latching and 3-state control-e.g., capturing address and data simultaneously but releasing them at different times, or sharing a common bus with staggered enable sequencing to avoid contention.

How does the integrated 30 Ω output termination improve signal integrity?

The 30 Ω resistor is placed in series with each output driver, matching typical PCB trace impedances (40–70 Ω) when combined with load capacitance. This damps reflections, reduces overshoot/ringing, and lowers EMI emissions-especially critical in memory address and clock distribution paths where signal fidelity directly impacts timing margins and system reliability.