Texas Instruments SN74LVCZ16240ADGGR

Overview

SN74LVCZ16240ADGGR 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-transceiver applications.

For engineers reviewing the SN74LVCZ16240ADGGR datasheet, SN74LVCZ16240ADGGR pinout, SN74LVCZ16240ADGGR application, or SN74LVCZ16240ADGGR equivalent, key selection criteria include 3.3-V supply compatibility, 5-V tolerant inputs, 16-bit inverting 3-state drive capability, thermal performance (θ_JA = 70°C/W), 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 in mixed-voltage systems.

During power-up/down (V_CC < 1.5 V), outputs enter high-impedance state via integrated power-up 3-state circuitry; I_off protection disables outputs when V_CC = 0 V, preventing backflow current. Latch-up performance exceeds 100 mA per JESD 78 Class II, and ESD protection meets 2000-V HBM and 1000-V CDM.

Key Specifications

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm max height, lead pitch 0.5 mm, RoHS-compliant NiPdAu finish, MSL Level-1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVCZ16240ADGGR, SN74LVC16240ADGGR omits hot-insertion safety features but matches pinout and basic logic function, while 74ALVC16240PW trades 5-V tolerance for lower propagation delay - making SN74LVCZ16240ADGGR the optimal choice for mixed-voltage, field-serviceable systems.

Availability

SN74LVCZ16240ADGGR is available at Aetrix Electronics and suitable for memory subsystems, clock tree distribution, industrial bus interfaces, and mixed-voltage embedded control requiring stable component supply and long-term manufacturability.

Supply support for SN74LVCZ16240ADGGR 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 broad ecosystem support.

The SN74LVCZ16240ADGGR belongs to TI's Widebus™ family, engineered specifically to enhance density and timing performance of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in space-constrained, mixed-voltage systems.

FAQ

What is the maximum input voltage rating for SN74LVCZ16240ADGGR?

The SN74LVCZ16240ADGGR accepts input voltages up to 5.5 V across its entire operating temperature range (–40°C to 85°C), independent of V_CC. This allows direct connection to 5-V logic sources without external level-shifting components, and is explicitly specified in the recommended operating conditions table of the SCES276D datasheet.

Does SN74LVCZ16240ADGGR support hot insertion, and how is it implemented?

Yes, SN74LVCZ16240ADGGR supports hot insertion via two integrated features: I_off circuitry disables outputs when V_CC = 0 V to prevent backflow current, and power-up 3-state forces outputs into high-impedance during V_CC ramp-up (0–1.5 V). Both mechanisms are verified per JEDEC JESD78 Class II latch-up and JESD22 ESD standards.

What is the propagation delay of SN74LVCZ16240ADGGR at 3.3 V?

The maximum propagation delay (t_pd) of SN74LVCZ16240ADGGR is 4.2 ns at V_CC = 3.3 V ± 0.3 V with C_L = 50 pF, as measured from input transition to output transition under standard test conditions defined in Figure 1 of the SCES276D datasheet. Typical t_pd is 1 ns under the same conditions.

Can SN74LVCZ16240ADGGR be used as a non-inverting buffer?

No - SN74LVCZ16240ADGGR provides strictly inverting logic functionality: output Y = NOT(A) when enabled. The device does not offer non-inverting variants in the Z-series; for non-inverting operation, TI recommends SN74LVCZ16244ADGGR, which shares identical packaging, voltage ratings, and hot-insertion features but implements true-buffer (Y = A) logic.

What package type and dimensions does SN74LVCZ16240ADGGR use?

SN74LVCZ16240ADGGR uses the TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm body size, 1.2 mm maximum height, 0.5 mm lead pitch, and 48 leads. Mechanical drawings confirm compliance with JEDEC MO-153, and thermal resistance is θ_JA = 70°C/W under standard JEDEC test board conditions.