Texas Instruments SN74LVCZ16244ADGGR

Overview

SN74LVCZ16244ADGGR from Texas Instruments is a 16-bit non-inverting buffer/driver with 3-state outputs, designed for 2.7-V to 3.6-V V_CC operation. It supports mixed-mode signaling (5-V inputs with 3.3-V V_CC), delivers 4.1 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 SN74LVCZ16244ADGGR datasheet, SN74LVCZ16244ADGGR pinout, SN74LVCZ16244ADGGR application, or SN74LVCZ16244ADGGR equivalent, key selection criteria include 3.3-V supply compatibility, 5-V tolerant inputs, 16-bit 3-state drive capability, thermal performance (θ_JA = 70°C/W), and TSSOP-48 packaging for high-density PCB layouts.

Technical Context

This device implements four independent 4-bit buffered channels, each with dedicated output-enable (OE) control. Its logic architecture ensures true (non-inverted) output behavior and supports configurable partitioning as one 16-bit, two 8-bit, or four 4-bit buffers. The I_off circuitry actively disables outputs when V_CC = 0 V, preventing backflow current during hot insertion.

Power-up 3-state functionality forces outputs into high-impedance when V_CC is below 1.5 V, and OE must be pulled up above that threshold to guarantee full 3-state control. Input clamp diodes and JESD 78 Class II latch-up immunity (>100 mA) enable robust operation in noisy or mixed-voltage system environments.

Key Specifications

Pinout & Package

TSSOP-48 (DGG) package: 48-pin thin shrink small-outline package, 12.6 mm × 6.1 mm body, 0.5-mm pitch, 1.2-mm max height, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16244ADGGR and 74ALVC16244DGGR, the SN74LVCZ16244ADGGR uniquely combines 5-V input tolerance, I_off-enabled hot insertion, and consistent 4.1 ns t_pd at 3.3 V-making it the optimal choice for industrial backplane and memory interface applications demanding reliability and timing precision.

Availability

SN74LVCZ16244ADGGR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, and industrial I/O expansion requiring stable component supply, long-term lifecycle support, and RoHS-compliant TSSOP packaging.

Supply support for SN74LVCZ16244ADGGR 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 for industrial, automotive, and communications markets.

The SN74LVCZ16244ADGGR belongs to TI's Widebus™ family of high-speed, low-voltage logic devices engineered specifically for dense, high-reliability bus interface and memory addressing applications in mixed-voltage systems.

FAQ

What is the operating voltage range for the SN74LVCZ16244ADGGR?

The SN74LVCZ16244ADGGR operates from 2.7 V to 3.6 V on V_CC. Its inputs tolerate voltages up to 5.5 V, enabling interoperability with 5-V logic families while powered from a 3.3-V rail. This specification is validated across –40°C to +85°C ambient temperature and confirmed in TI's SCES277D datasheet Section 5 (Recommended Operating Conditions).

Does the SN74LVCZ16244ADGGR support hot insertion?

Yes, the SN74LVCZ16244ADGGR supports hot insertion via two integrated features: I_off circuitry disables outputs when V_CC = 0 V to block reverse current, and power-up 3-state forces outputs into high-impedance during V_CC ramp-up (0–1.5 V). These functions are explicitly documented in the device description and functional table of the SCES277D datasheet.

What package type and dimensions does the SN74LVCZ16244ADGGR use?

The SN74LVCZ16244ADGGR uses a TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm body size, 0.5-mm lead pitch, 1.2-mm maximum height, and JEDEC MO-153 compliance. Pin 1 orientation follows quadrant Q1 tape-and-reel configuration, and thermal resistance is θ_JA = 70°C/W, per TI's mechanical drawing DGG0048A and Package Option Addendum.

How many independent 3-state control inputs does the SN74LVCZ16244ADGGR have?

The SN74LVCZ16244ADGGR has four independent active-low output-enable inputs: 1OE, 2OE, 3OE, and 4OE - one per 4-bit buffer section. This allows granular control over bus segments, such as enabling only address bits [15:8] while holding [7:0] in high-impedance. The pinout and function table are verified in the top-view diagram and logic diagram of SCES277D.

What is the maximum propagation delay of the SN74LVCZ16244ADGGR at 3.3 V?

The maximum propagation delay (t_pd) of the SN74LVCZ16244ADGGR is 4.1 ns at V_CC = 3.3 V ± 0.3 V, CL = 50 pF, and TA = 25°C. This value is specified in the "Switching Characteristics" table (Page 4) of the SCES277D datasheet and applies to the A→Y path under worst-case conditions.