Texas Instruments 74LVCZ16240ADGVRE4

Overview

74LVCZ16240ADGVRE4 from Texas Instruments is a 16-bit inverting buffer/driver with 3-state outputs, designed for 2.7 V to 3.6 V V_CC operation. It supports mixed-mode signal operation (5-V inputs with 3.3-V V_CC), delivers 4.2 ns max propagation delay at 3.3 V, and features I_off and power-up 3-state for hot-insertion in memory address, clock, and bus driver applications.

For engineers reviewing the 74LVCZ16240ADGVRE4 datasheet, 74LVCZ16240ADGVRE4 pinout, 74LVCZ16240ADGVRE4 application, or 74LVCZ16240ADGVRE4 equivalent, key selection criteria include 3.3-V supply compatibility, 5.5-V tolerant inputs, guaranteed high-impedance during power sequencing, and TSSOP-48 package suitability for high-density PCB layouts.

Technical Context

This device implements four independent 4-bit inverting buffers, each controlled by its own output-enable (OE) input, enabling flexible partitioning as one 16-bit, two 8-bit, or four 4-bit drivers. All inputs tolerate up to 5.5 V regardless of V_CC, supporting level translation between 3.3-V and 5-V domains without external components.

The I_off circuitry actively disables outputs when V_CC = 0 V, preventing backflow current during hot insertion; power-up 3-state ensures outputs remain high-impedance while V_CC ramps from 0 V to 1.5 V, eliminating bus contention during power sequencing.

Key Specifications

Pinout & Package

TSSOP-48 (DGV) package: 12.6 mm × 6.2 mm × 1.2 mm body, 0.5 mm pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit inverting 3-state buffer applications.

Compared with SN74LVC16240ADGGR and 74ALVC16240PW, the 74LVCZ16240ADGVRE4 uniquely combines 5.5-V input tolerance, 4.2 ns speed, and I_off-enabled hot insertion-making it the only choice for robust 3.3-V-to-5-V bus bridging in live-insertion environments.

Availability

74LVCZ16240ADGVRE4 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, and industrial bus interface designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 74LVCZ16240ADGVRE4 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

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, scalability, and industrial-grade qualification.

The SN74LVCZ16240A belongs to TI's Widebus™ family-designed specifically to enhance performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in mixed-voltage systems.

FAQ

What is the maximum input voltage rating for 74LVCZ16240ADGVRE4?

The 74LVCZ16240ADGVRE4 accepts input voltages up to 5.5 V regardless of V_CC level, enabling direct interfacing with 5-V logic families while operating from a 3.3-V supply. This specification is guaranteed per the absolute maximum ratings table and confirmed in the recommended operating conditions section of the SCES276D datasheet.

Does 74LVCZ16240ADGVRE4 support hot insertion, and how is it implemented?

Yes, the 74LVCZ16240ADGVRE4 supports hot insertion via two integrated features: I_off circuitry disables outputs when V_CC = 0 V to prevent back-current, and power-up 3-state holds outputs in high-impedance during V_CC ramp from 0 V to 1.5 V. These functions are explicitly documented in the functional description and electrical characteristics tables of the official TI datasheet.

What package type and dimensions does 74LVCZ16240ADGVRE4 use?

The 74LVCZ16240ADGVRE4 uses a TSSOP-48 (DGV) package: 12.6 mm × 6.2 mm body size, 1.2 mm maximum height, 0.5 mm lead pitch, and gull-wing terminations. Mechanical drawings and land pattern recommendations are published in TI's DGG0048A package outline document and confirmed in the PACKAGE OUTLINE section of SCES276D.

Can 74LVCZ16240ADGVRE4 be used as non-inverting buffer?

No-the 74LVCZ16240ADGVRE4 provides strictly inverting outputs as defined in its logic diagram and function table. Each A-input drives a complementary Y-output (e.g., A1 → Y1̅). For non-inverting operation, TI recommends the companion part SN74LVCZ16244A, which is functionally identical except for non-inverting polarity.

What is the thermal resistance (θ_JA) of 74LVCZ16240ADGVRE4 in its TSSOP package?

The junction-to-ambient thermal resistance (θ_JA) for the 74LVCZ16240ADGVRE4 in the TSSOP (DGV) package is 58°C/W, as specified in the Absolute Maximum Ratings table of SCES276D. This value assumes standard JEDEC 2-layer board conditions per JESD51-7 and is critical for calculating junction temperature under sustained load.