Nexperia USA Inc. 74LVT162373DL,118

Overview

74LVT162373DL,118 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 high-speed bus driving.

For engineers reviewing the 74LVT162373DL,118 datasheet, 74LVT162373DL,118 pinout, 74LVT162373DL,118 application, or 74LVT162373DL,118 equivalent, key selection considerations include its 30 Ω on-die termination (eliminating external resistors), bus-hold inputs (removing need for pull-ups), live insertion capability, and dual-latch enable architecture enabling flexible timing control in backplane and memory subsystems.

Technical Context

The device implements a BiCMOS transparent latch architecture with active-HIGH latch enable (LE) and active-LOW output enable (OE) per 8-bit bank. When LE is HIGH, Q outputs follow D inputs with typical propagation delays of 2.5 ns (VCC = 3.3 V); when LE transitions LOW, data is latched one setup time prior to the edge.

Each output integrates matched 30 Ω series resistance in both HIGH and LOW states-verified per Figure 4 schematic-reducing signal reflections and EMI in parallel bus environments. Bus-hold circuitry on all data inputs maintains valid logic states without external biasing, supporting hot-plug operation and unused input management.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch - optimized for high-density PCB layouts with thermal and mechanical reliability in automated assembly.

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 74LVT162373DL,118 uniquely combines on-die 30 Ω termination, bus-hold inputs, and 5 V tolerance-making it the only option that simultaneously eliminates external resistors, pull-ups, and level shifters in industrial 3.3 V/5 V mixed-signal bus interfaces.

Availability

74LVT162373DL,118 is available at Aetrix Electronics and suitable for memory address latching, backplane data buffering, and industrial PLC I/O expansion requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.

Supply support for 74LVT162373DL,118 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 focused on high-performance, high-reliability standard logic, analog, and MOSFET solutions for automotive, industrial, and computing markets.

The 74LVT family delivers advanced BiCMOS logic with enhanced speed-power trade-offs and robust I/O structures specifically engineered for noise-critical 3.3 V bus interfacing in industrial control and communications infrastructure.

FAQ

Can 74LVT162373DL,118 interface directly with 5 V microcontrollers?

Yes. All inputs tolerate up to 5.5 V, and outputs swing rail-to-rail within 3.3 V supply constraints while maintaining TTL-compatible thresholds. This allows direct connection to 5 V MCU address/data buses without level-shifting circuitry, verified per Table 5 (VIH = 2.0 V min, VIL = 0.8 V max) and Table 9 (VI = 5.5 V allowed).

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 impedances (40–60 Ω), suppressing signal reflections and reducing EMI in parallel bus applications like memory addressing and backplane interconnects-eliminating the need for 16 discrete external termination resistors.

How does bus-hold functionality work on the data inputs?

Each D input includes weak feedback transistors that detect and reinforce the last valid logic state, drawing ±75 μA (Table 6) to hold the pin at VIH or VIL. This prevents floating inputs during power-up, hot-swap events, or unconnected pins-removing the need for external pull-up/down resistors in systems with variable I/O configurations.

Is live insertion supported, and what design features enable it?

Yes. The combination of power-up 3-state (outputs remain high-Z until VCC stabilizes), bus-hold inputs (preventing undefined states during partial power), and I/O clamp diodes rated to ±50 mA (Table 4) enables safe insertion/extraction into powered backplanes-confirmed by Nexperia's functional testing under live-insertion conditions in industrial environments.