Texas Instruments CLVTH32244IGKEREP

Overview

CLVTH32244IGKEREP from Texas Instruments is a 32-bit ABT buffer/driver IC operating at 3.3 V VCC, featuring 3-state outputs, bus-hold inputs, and hot-insertion support via Ioff and power-up 3-state logic. It delivers symmetrical active-low OE control, supports mixed-mode 5-V input/3.3-V output operation, and is rated for –40°C to 85°C industrial temperature range. Used in high-density memory address and clock driver applications.

For engineers reviewing the CLVTH32244IGKEREP datasheet, CLVTH32244IGKEREP pinout, CLVTH32244IGKEREP application, or CLVTH32244IGKEREP equivalent, key selection considerations include its 96-pin LFBGA (GKE) package, 32-channel true-buffer architecture, bus-hold functionality eliminating external resistors, low ground bounce (<0.8 V), and JESD 78 Class II latch-up compliance.

Technical Context

The CLVTH32244IGKEREP implements eight independent 4-bit noninverting buffers, each with dedicated active-low output-enable (OE) inputs and true (noninverted) outputs. Its ABT (Advanced BiCMOS Technology) design enables TTL-level compatibility while operating from a 3.3-V supply.

It integrates Ioff circuitry to disable outputs during power-down, preventing backflow current, and power-up 3-state logic to maintain high-impedance outputs during supply ramp-up/down. Bus-hold circuitry actively maintains valid logic states on undriven inputs without external pull resistors.

Key Specifications

Pinout & Package

LFBGA-96 package (GKE footprint), 6.0 mm × 6.0 mm × 1.0 mm body, ball pitch 0.5 mm, moisture sensitivity level (MSL) Level-2-235°C-1 year.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit buffer/driver applications.

Compared with SN74LVT32244ZKER and SN74ALVCH32244KR, CLVTH32244IGKEREP uniquely combines 5-V-tolerant inputs, bus-hold, Ioff, and 64-mA drive in a single 96-pin LFBGA-making it the only option for robust, mixed-voltage, hot-pluggable 32-bit buffering in industrial backplanes and memory subsystems.

Availability

CLVTH32244IGKEREP is available at Aetrix Electronics and suitable for industrial backplane interconnect, memory subsystem buffering, and programmable logic controller I/O expansion requiring stable component supply across extended temperature and long product lifecycles.

Supply support for CLVTH32244IGKEREP 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 logic solutions for industrial, automotive, and communications markets.

The CLVTH32244IGKEREP belongs to TI's Widebus+™ family of advanced bus-interface ICs, engineered specifically to increase density and performance of 3-state memory address drivers, clock distribution networks, and bus-oriented receivers/transmitters in high-reliability systems.

FAQ

What is the function of the CLVTH32244IGKEREP?

The CLVTH32244IGKEREP is a 32-bit noninverting buffer/driver IC with 3-state outputs, designed for 3.3-V operation. It functions as eight independent 4-bit buffers, each with active-low output-enable control. Its primary roles include memory address buffering, clock signal distribution, and bus interface translation-especially where mixed 5-V/3.3-V signaling, bus-hold, and hot-insertion capability are required. The CLVTH32244IGKEREP integrates Ioff and power-up 3-state logic to prevent damage during live system reconfiguration.

Does the CLVTH32244IGKEREP support 5-V input signals?

Yes, the CLVTH32244IGKEREP supports 5-V input signals while operating from a 3.3-V supply. Its input voltage rating extends to 5.5 V, allowing direct interfacing with legacy 5-V TTL logic without external level shifters. This mixed-mode capability is explicitly specified in the datasheet under "Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)" and confirmed by VI absolute maximum rating of 7 V and recommended VI of 5.5 V.

What package type is used for the CLVTH32244IGKEREP?

The CLVTH32244IGKEREP uses a 96-ball Low-Profile Fine-Pitch Ball Grid Array (LFBGA) package with GKE footprint. It measures 6.0 mm × 6.0 mm × 1.0 mm with 0.5-mm ball pitch and is rated MSL Level-2-235°C-1 year. The top-side marking is "HV244", and the package drawing is documented by Texas Instruments under package code GKE. This package provides high I/O density and thermal performance suitable for compact industrial PCBs.

How does bus-hold functionality work on the CLVTH32244IGKEREP?

The CLVTH32244IGKEREP incorporates active bus-hold circuitry on all 32 data inputs (A1–A4 for each of eight sections). When an input is left floating or undriven, the bus-hold circuit applies ±75 µA of feedback current to maintain the last-valid logic state-eliminating the need for external pullup or pulldown resistors. This feature is confirmed in the datasheet's "Features" and "Electrical Characteristics" tables (II(hold) parameter), and TI explicitly warns against using external resistors with this circuitry.

Is the CLVTH32244IGKEREP suitable for hot-insertion applications?

Yes, the CLVTH32244IGKEREP is explicitly designed for hot-insertion applications. It features both Ioff circuitry-which disables outputs and limits leakage to ±100 µA when VCC = 0-and power-up 3-state logic that forces outputs into high-impedance during supply ramp-up/down. These capabilities are validated per JESD 78 Class II latch-up standards (>100 mA) and referenced in the "Features" and "Description" sections of the official datasheet. The CLVTH32244IGKEREP is qualified for use in live backplanes and modular systems requiring safe card insertion/removal.