Nexperia USA Inc. 74LVT162373DGG,512

Overview

74LVT162373DGG,512 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 for memory address buffering and clock distribution.

For engineers reviewing the 74LVT162373DGG,512 datasheet, 74LVT162373DGG,512 pinout, 74LVT162373DGG,512 application, or 74LVT162373DGG,512 equivalent, key selection criteria include its 30 Ω on-die termination (eliminating external resistors), bus-hold inputs (removing pull-ups), power-up 3-state behavior, and BiCMOS architecture enabling high-speed, low-noise operation in mixed-voltage bus interfaces.

Technical Context

This device implements dual 8-bit transparent latches with independent Latch Enable (1LE/2LE) and Output Enable (1OE/2OE) controls, allowing asynchronous latching and output gating per 8-bit bank. Its BiCMOS process delivers TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) while operating from a 3.3 V supply, enabling direct interfacing with both 3.3 V logic and legacy 5 V buses without level shifters.

Each output integrates matched 30 Ω series resistance in both HIGH and LOW states-verified by schematic Fig. 4 and functional description-to damp signal reflections and reduce EMI in high-speed parallel bus applications such as memory address drivers and clock fanout. Bus-hold circuitry on all data inputs maintains valid logic states on unused pins without external components.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48 leads, body width 6.1 mm, lead pitch 0.5 mm, compliant with JEDEC MO-153.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16373DGGR and 74ALVCH162373T, the 74LVT162373DGG,512 uniquely combines on-die 30 Ω termination, bus-hold inputs, and power-up 3-state-all in a single TSSOP48 package-making it optimal for noise-sensitive, mixed-voltage industrial bus interfaces where reliability and layout simplicity are prioritized.

Availability

74LVT162373DGG,512 is available at Aetrix Electronics and suitable for memory address buffering, high-speed clock distribution, PCI/ISA bus interface, and industrial control backplane applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.

Supply support for 74LVT162373DGG,512 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 delivering high-performance, reliable logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets-with over 60 years of heritage in standard logic innovation.

The 74LVT series targets high-speed, low-noise bus interface applications in industrial and communications infrastructure, combining BiCMOS speed with TTL compatibility and robust ESD/latch-up protection.

FAQ

Can the 74LVT162373DGG,512 interface directly with 5 V logic without level shifters?

Yes. Its TTL-compatible inputs accept VIH ≥ 2.0 V and VIL ≤ 0.8 V, allowing direct connection to 5 V outputs. Outputs drive 5 V-tolerant inputs at ±12 mA, and the 3.3 V supply ensures safe operation-no external level translation is required for bidirectional 5 V ↔ 3.3 V bus interfacing.

What is the purpose of the 30 Ω series resistance on each output?

The 30 Ω resistor is integrated into both HIGH and LOW output paths to match typical PCB trace impedance and damp signal reflections. This reduces EMI, overshoot, and undershoot in high-speed parallel buses-verified in Fig. 4 and confirmed in the General Description-eliminating the need for eight external termination resistors per bank.

How does bus-hold functionality affect unused input pins?

Bus-hold circuitry actively maintains the last valid logic state on any unconnected 1Dn or 2Dn input, drawing ±75 μA at 3 V. This prevents floating inputs from drifting into undefined regions, removes the need for external pull-up/pull-down resistors, and enhances system robustness during hot-swap or partial configuration scenarios.

Is the 74LVT162373DGG,512 suitable for hot-plug applications?

Yes. It supports live insertion/extraction per datasheet Section 2, features power-up 3-state to avoid bus contention during power ramp, and includes latch-up protection exceeding 500 mA (JESD78B Class II). These characteristics make it appropriate for modular backplanes and field-replaceable I/O cards requiring safe hot-swap capability.