Texas Instruments CLVTH16244AIGQLREP

Overview

CLVTH16244AIGQLREP from Texas Instruments is a radiation-hardened, 16-bit noninverting buffer/driver with 3-state outputs, designed for 3.3-V ABT operation in extended temperature environments (–55°C to 125°C). It features bus-hold circuitry on all data inputs, Ioff support for hot insertion, and mixed-mode 5-V input tolerance with 3.3-V VCC - enabling direct interfacing between 3.3-V logic and legacy 5-V systems in aerospace avionics backplanes.

For engineers reviewing the CLVTH16244AIGQLREP datasheet, CLVTH16244AIGQLREP pinout, CLVTH16244AIGQLREP application, or CLVTH16244AIGQLREP equivalent, key selection considerations include its VFBGA-56 (GQL) package, –55°C to 125°C operating range, 3.3-V supply with 2.7-V minimum, bus-hold functionality eliminating external resistors, and Ioff-enabled hot-swap capability in mission-critical power-up/down sequences.

Technical Context

This device implements four independent 4-bit noninverting buffers, each with active-low 3-state output-enable (OE) control. Its Advanced BiCMOS Technology (ABT) delivers low static power dissipation while maintaining TTL-compatible output drive strength and 5-V tolerant inputs - critical for mixed-voltage system interconnects.

The GQL package integrates 56-ball VFBGA layout with dedicated ground/power planes and symmetrical OE pin placement per buffer group. Bus-hold circuitry actively maintains valid logic states on undriven inputs without external components, and Ioff disables outputs during power-down to prevent current backflow in live-backplane scenarios.

Key Specifications

Pinout & Package

CLVTH16244AIGQLREP uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated GQL, measuring 7.9 mm × 7.9 mm × 1.2 mm max height, with JEDEC MO-153 compliance and lead-free (Pb-free) NiPdAu ball finish. The package supports automated optical inspection (AOI) and X-ray void detection due to its coplanar ball structure.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVTH16244AQDGGREP and SN74LVTH16244AIDGVREP, CLVTH16244AIGQLREP uniquely delivers radiation-hardened operation, extended –55°C to 125°C performance, and MIL-PRF-38535 Class V pedigree - making it the only option qualified for launch-critical and deep-space missions where single-event effects must be mitigated at the component level.

Availability

CLVTH16244AIGQLREP is available at Aetrix Electronics and suitable for aerospace avionics backplanes, satellite onboard computer I/O, defense radar signal processing, spacecraft power management units, and radiation-tolerant embedded controllers requiring stable component supply across extended temperature and lifecycle demands.

Supply support for CLVTH16244AIGQLREP 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 specializing in analog, embedded processing, and high-reliability ICs for aerospace, defense, and industrial markets - with over 50 years of space-qualified component heritage.

CLVTH16244AIGQLREP belongs to TI's Widebus™ family of high-speed, low-voltage interface devices engineered specifically for radiation-hardened, extended-temperature system interconnects in mission-critical platforms.

FAQ

What is the maximum operating temperature range for CLVTH16244AIGQLREP?

CLVTH16244AIGQLREP is fully specified for operation from –55°C to 125°C and qualified per MIL-PRF-38535 Class V. This extended range supports deployment in orbital thermal environments and high-power military electronics where ambient temperatures exceed commercial-grade limits. The device maintains full electrical performance across this span without derating.

Does CLVTH16244AIGQLREP support hot insertion into powered backplanes?

Yes, CLVTH16244AIGQLREP supports hot insertion via dual mechanisms: Ioff circuitry disables outputs when VCC = 0 V, preventing reverse current flow; and power-up 3-state forces outputs into high-impedance during power ramp-up. These features are verified per TI's SCAS692F datasheet and meet MIL-STD-1399 Section 300B requirements for live-backplane engagement.

Can CLVTH16244AIGQLREP interface directly with 5-V logic systems?

Yes, CLVTH16244AIGQLREP accepts input voltages up to 5.5 V while operating from a 3.3-V supply - enabling direct connection to 5-V TTL outputs without level shifters. Its VIH threshold of 2.0 V and VIL of 0.8 V ensure robust noise margins when receiving 5-V logic signals in mixed-voltage avionics architectures.

What package type does CLVTH16244AIGQLREP use, and is it RoHS-compliant?

CLVTH16244AIGQLREP uses a 56-ball VFBGA (GQL) package with Pb-free NiPdAu ball finish and is RoHS-compliant per TI's Package Option Addendum. The 7.9 mm × 7.9 mm footprint supports high-density routing in SWaP-constrained aerospace modules, and the package meets JEDEC MO-153 mechanical standards.

How does the bus-hold feature on CLVTH16244AIGQLREP eliminate external resistors?

The bus-hold circuitry on CLVTH16244AIGQLREP actively maintains the last-valid logic state on undriven inputs using internal feedback transistors - delivering ±750 µA dynamic hold current. This eliminates the need for external pullup/pulldown resistors in floating-bus configurations, reducing BOM count, PCB area, and potential noise coupling in high-reliability systems.