Texas Instruments CLVCH16T245MDGVREP

Overview

CLVCH16T245MDGVREP from Texas Instruments is a 16-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs, supporting bidirectional level-shifting between 1.65 V–5.5 V rails on both A and B ports. It features bus-hold circuitry, VCC isolation, Ioff partial-power-down support, and operates across –55°C to 125°C. Used in mixed-voltage FPGA-to-ASIC interconnects requiring robust signal integrity.

For engineers reviewing the CLVCH16T245MDGVREP datasheet, CLVCH16T245MDGVREP pinout, CLVCH16T245MDGVREP application, or CLVCH16T245MDGVREP equivalent, this page delivers verified electrical specs, TVSOP-48 package mapping, functional role in voltage-translation subsystems, and validated alternative options for aerospace-grade system design.

Technical Context

The CLVCH16T245MDGVREP implements two independent 8-bit transceiver sections (1DIR/1OE and 2DIR/2OE), each enabling bidirectional data flow between A and B ports under separate VCCA and VCCB supplies. Control inputs (DIR, OE) are referenced solely to VCCA, ensuring deterministic logic thresholds during rail mismatch.

Its VCC isolation feature forces all outputs into high-impedance when either VCCA or VCCB is at GND, while bus-hold circuitry maintains valid logic states on undriven inputs without external resistors-critical for hot-swap and power-rail sequencing in defense electronics.

Key Specifications

Pinout & Package

CLVCH16T245MDGVREP is housed in a 48-pin Thin Very Small Outline Package (TVSOP), designated DGV, with 0.4 mm lead pitch and 1.2 mm max height. The package complies with JEDEC MO-153 and supports lead-free (NiPdAu) assembly with MSL Level-1 rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVCH16T245MDGGREP and V62/09605-01YE, CLVCH16T245MDGVREP offers identical core functionality in the space-constrained TVSOP package, with full EP qualification-but lacks QML-V certification and has slightly lower thermal resistance than TSSOP, making it optimal for size-sensitive defense platforms where formal space-level screening is not required.

Availability

CLVCH16T245MDGVREP is available at Aetrix Electronics and suitable for avionics data buses, FPGA-to-ASIC interconnects, secure military communication modules, and medical imaging subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CLVCH16T245MDGVREP 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 components, with over 50 years of innovation in aerospace, defense, and industrial markets.

The CLVCH16T245MDGVREP belongs to TI's Enhanced Product (EP) family-engineered for mission-critical systems demanding extended temperature operation, controlled manufacturing baselines, and full traceability from wafer to shipment.

FAQ

What voltage ranges does the CLVCH16T245MDGVREP support on its A and B ports?

The CLVCH16T245MDGVREP supports independent supply voltages from 1.65 V to 5.5 V on both VCCA (A port) and VCCB (B port). This allows translation between any combination of 1.8 V, 2.5 V, 3.3 V, and 5 V logic families. Each port's I/O thresholds scale with its respective supply, and control inputs (DIR, OE) are referenced exclusively to VCCA.

How does the VCC isolation feature function in the CLVCH16T245MDGVREP?

In the CLVCH16T245MDGVREP, if either VCCA or VCCB drops to GND, all outputs automatically enter a high-impedance state-regardless of DIR or OE states. This prevents bus contention during power-up/down sequencing or fault conditions. The bus-hold circuitry remains active on the powered side, maintaining valid logic levels on undriven inputs.

Is the CLVCH16T245MDGVREP pin-compatible with standard commercial SN74LVCH16T245 variants?

Yes-the CLVCH16T245MDGVREP shares identical pinout, functionality, and logic behavior with the commercial SN74LVCH16T245 in TVSOP-48 (DGV) packaging. Differences are limited to enhanced screening, extended temperature qualification (–55°C to +125°C), and tighter process controls-not electrical or mechanical compatibility.

What is the purpose of bus-hold circuitry in the CLVCH16T245MDGVREP, and can external pull-up resistors be used?

The bus-hold circuitry in the CLVCH16T245MDGVREP actively maintains a valid logic state on unused or undriven data inputs, eliminating the need for external pull-up or pull-down resistors. TI explicitly advises against using external resistors with bus-hold enabled, as they may conflict with internal sustaining currents and degrade noise margins.

Does the CLVCH16T245MDGVREP support partial-power-down operation, and how is it implemented?

Yes-the CLVCH16T245MDGVREP supports partial-power-down via its Ioff feature. When either VCCA or VCCB is at GND, the Ioff circuitry disables all outputs and limits leakage current to ±2 μA maximum, preventing damaging reverse current flow into powered rails-a critical capability for modular power architectures in defense electronics.