Texas Instruments CLVTH16245AQDLREP

Overview

CLVTH16245AQDLREP from Texas Instruments is a radiation-hardened, high-reliability 16-bit noninverting bus transceiver with 3-state outputs, designed for 3.3-V ABT operation in extended-temperature aerospace and defense systems. It supports mixed-mode signaling (5-V inputs/outputs with 3.3-V VCC), delivers ±24 mA output drive at 3.3 V, and features bus-hold circuitry eliminating external pullup/pulldown resistors - deployed in avionics data buses and satellite payload interfaces.

For engineers reviewing the CLVTH16245AQDLREP datasheet, CLVTH16245AQDLREP pinout, CLVTH16245AQDLREP application, or CLVTH16245AQDLREP equivalent, key selection criteria include its -40°C to 125°C operating range, SSOP-48 package with distributed VCC/GND pins for noise suppression, Ioff-enabled hot-insertion capability, and compatibility with TTL-level control signals in 3.3-V system backplanes.

Technical Context

This device implements dual-octal bidirectional data flow controlled by independent DIR and OE inputs per 8-bit section, enabling flexible A↔B bus directionality without external logic. Its Advanced BiCMOS Technology (ABT) ensures low static power dissipation while maintaining TTL-compatible input thresholds and 5-V tolerant I/O under 3.3-V supply.

The integrated bus-hold circuitry actively maintains valid logic states on undriven A/B port inputs, and the Ioff feature disables outputs during power-down to prevent current backflow - both critical for fault-tolerant, hot-swap-capable spacecraft subsystems requiring uninterrupted bus integrity across power sequencing events.

Key Specifications

Pinout & Package

CLVTH16245AQDLREP uses a 48-pin SSOP (DL) package with 0.5-mm pitch, 12.6 mm × 6.2 mm body size, and 1.2-mm max height - optimized for high-density PCB layouts in space-constrained avionics modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVTH16245AQDGGREP, CLVTH16245AQDLREP offers superior mechanical stability in high-vibration environments due to SSOP's wider body and longer leads; compared with SN54LVTH16245A, it provides identical functionality at lower cost and shorter lead time but lacks formal QML documentation - making it optimal for space-qualified commercial-off-the-shelf (COTS) subsystems where radiation tolerance is verified per mission profile rather than certified per MIL-STD.

Availability

CLVTH16245AQDLREP is available at Aetrix Electronics and suitable for avionics data bus interface, satellite payload controller, and defense radar signal processor applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CLVTH16245AQDLREP 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 logic solutions for aerospace, defense, and industrial markets.

The SN74LVTH16245A-EP product line delivers radiation-tolerant, extended-temperature bus interface ICs engineered for mission-critical systems where signal integrity, hot-swap capability, and long-term supply assurance are non-negotiable design requirements.

FAQ

What is the operating temperature range for CLVTH16245AQDLREP?

The CLVTH16245AQDLREP is rated for continuous operation from –40°C to +125°C ambient temperature, validated per JEDEC JESD22-A108 and qualified with HAST, temperature cycling, and unbiased autoclave testing - making it suitable for engine bay electronics and satellite payload bays where thermal extremes occur.

Does CLVTH16245AQDLREP support hot insertion?

Yes, CLVTH16245AQDLREP fully supports hot insertion via its Ioff circuitry and power-up 3-state functionality. When VCC is below 1.5 V, outputs remain in high-impedance state; at powered-down conditions, Ioff limits reverse current to ±100 µA - preventing damage during live backplane replacement in avionics racks.

Can CLVTH16245AQDLREP interface directly with 5-V logic devices?

Yes, CLVTH16245AQDLREP accepts input voltages up to 5.5 V and drives outputs to 5-V levels while operating from a 3.3-V supply - enabling seamless integration with legacy 5-V peripherals without external level translators, as confirmed by VIH/VIL and VOH/VOL specifications across the full operating range.

What package type does CLVTH16245AQDLREP use?

CLVTH16245AQDLREP uses a 48-pin SSOP (Shrink Small Outline Package) with DL suffix, measuring 12.6 mm × 6.2 mm with 0.5-mm lead pitch and 1.2-mm maximum height - designed for high-density PCB layouts and compatible with standard reflow profiles per JEDEC J-STD-020 Level-1.

How does the bus-hold feature work on CLVTH16245AQDLREP?

The CLVTH16245AQDLREP integrates active bus-hold circuitry on all A/B port inputs, providing ±75 µA dynamic hold current to maintain the last-valid logic state on undriven or floating lines - eliminating external pullup/pulldown resistors and reducing layout complexity in systems with intermittent bus activity.