Texas Instruments CLVTH16245AMDLREP

Overview

CLVTH16245AMDLREP 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 across –55°C to 125°C. 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 pull resistors - used in avionics data buses and space-grade FPGA I/O bridging.

For engineers reviewing the CLVTH16245AMDLREP datasheet, CLVTH16245AMDLREP pinout, CLVTH16245AMDLREP application, or CLVTH16245AMDLREP equivalent, key selection criteria include its extended temperature range (–55°C to 125°C), SSOP-48 package with DL footprint, Ioff-enabled hot-insertion support, and compliance with MIL-PRF-38535 Class V / QML-V requirements for spaceflight systems.

Technical Context

This device implements dual-octal bidirectional data flow controlled by independent DIR and OE signals per 8-bit section, enabling flexible A↔B bus directionality without external logic. Its Advanced BiCMOS Technology (ABT) ensures low static power (<0.19 mA ICC when disabled) while maintaining TTL-compatible thresholds and 5-V tolerant inputs.

The transceiver integrates distributed VCC/GND pins and flow-through pinout to minimize switching noise and simplify PCB routing. Bus-hold circuitry maintains valid logic states on undriven A/B port inputs (±750 µA hold current), and Ioff protection blocks reverse current during partial power-down - critical for backplane hot-swap and multi-rail system interoperability.

Key Specifications

Pinout & Package

CLVTH16245AMDLREP uses a 48-pin SSOP (DL) package measuring 12.6 mm × 6.2 mm × 1.95 mm (max height), with 0.5-mm lead pitch and NIPDAU lead finish. Pin 1 identifier located at top-left corner; moisture sensitivity level (MSL) is Level-1-260°C-UNLIM.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CLVTH16245AMDLREP, SN74LVTH16245AQDGGREP offers smaller footprint but no space qualification, while SN54LVTH16245A provides equivalent environmental robustness in non-tape-and-reel ceramic form - making CLVTH16245AMDLREP the only option combining QML-V compliance, SSOP-48 manufacturability, and automated assembly readiness.

Availability

CLVTH16245AMDLREP is available at Aetrix Electronics and suitable for avionics data buses, satellite onboard computers, defense radar backplanes, and tactical radio baseband interconnects requiring stable component supply under extended temperature and radiation-hardened conditions.

Supply support for CLVTH16245AMDLREP 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, with decades of heritage in aerospace, defense, and industrial markets.

The SN74LVTH16245A-EP product line delivers radiation-tolerant, extended-temperature bus interface solutions for mission-critical systems where failure is not an option - engineered specifically for spaceflight, airborne, and strategic defense platforms.

FAQ

What is the maximum operating temperature range for CLVTH16245AMDLREP?

CLVTH16245AMDLREP is fully specified from –55°C to 125°C and qualified per MIL-PRF-38535 Class V for continuous operation across this extended range. This rating is validated through temperature cycling, unbiased HAST, and autoclave testing - making CLVTH16245AMDLREP suitable for low-Earth orbit satellites and high-altitude avionics where thermal extremes occur.

Does CLVTH16245AMDLREP support hot insertion into a live 5-V bus?

Yes, CLVTH16245AMDLREP supports hot insertion via integrated Ioff and power-up 3-state circuitry. When VCC = 0 V, Ioff limits reverse current to ±100 µA, preventing damage to powered downstream devices. During power-up, outputs remain in high-impedance until VCC exceeds 1.5 V - ensuring CLVTH16245AMDLREP can be safely inserted into an active 5-V backplane without bus contention.

Can CLVTH16245AMDLREP interface directly between a 3.3-V FPGA and a 5-V microcontroller?

Yes, CLVTH16245AMDLREP enables direct interfacing: its inputs tolerate up to 7 V (including 5-V logic levels) while operating at 3.3-V VCC, and its outputs drive 5-V TTL loads with VOH ≥2.0 V and VOL ≤0.55 V at 3.3 V. No external level shifters are needed - CLVTH16245AMDLREP handles bidirectional voltage translation natively for both A and B ports.

Is bus-hold functionality enabled by default on CLVTH16245AMDLREP inputs?

Yes, bus-hold circuitry is permanently enabled on all A and B port inputs of CLVTH16245AMDLREP and requires no configuration. It sources or sinks up to ±750 µA to maintain the last-valid logic state on undriven or floating pins - eliminating external pullup/pulldown resistors and reducing PCB area and BOM cost. CLVTH16245AMDLREP's bus-hold operates across the full –55°C to 125°C range.

What package type and lead finish does CLVTH16245AMDLREP use?

CLVTH16245AMDLREP uses a 48-pin SSOP (DL) package with 0.5-mm pitch and NIPDAU (nickel-palladium-gold) lead finish. It is supplied in tape-and-reel format (1000 units per reel), MSL Level-1 (unlimited floor life at ≤30°C/60% RH), and compatible with standard reflow profiles up to 260°C peak. The DL package footprint matches industry-standard SSOP-48 land patterns.