Texas Instruments CLVC1G125MDCKREP

Overview

CLVC1G125MDCKREP from Texas Instruments is a single-channel 3-state bus buffer gate designed for voltage-level translation and bidirectional bus isolation in space-constrained industrial and aerospace systems. It operates from 1.65 V to 5.5 V, delivers ±24 mA output drive at 3.3 V, achieves 3.7 ns max propagation delay (tpd) at 3.3 V, and supports partial-power-down via Ioff (≤10 µA at 5.5 V). It is used in high-reliability data acquisition modules requiring extended temperature operation.

For engineers reviewing the CLVC1G125MDCKREP datasheet, CLVC1G125MDCKREP pinout, CLVC1G125MDCKREP application, or CLVC1G125MDCKREP equivalent, key selection criteria include its –55°C to 125°C operating range, SC-70 (DCK) 5-pin package, 3-state enable control logic, and Ioff-enabled backflow protection during power sequencing.

Technical Context

This device implements a noninverting buffer with active-low 3-state output control (OE high = high-impedance). Its CMOS input structure accepts voltages up to 5.5 V independent of VCC, enabling mixed-voltage interfacing (e.g., 5-V logic driving a 1.8-V bus). The Ioff circuit actively disables outputs when VCC = 0 V, preventing current backflow into powered subsystems.

Propagation delay (tpd), enable time (ten), and disable time (tdis) are all specified down to –55°C and up to 125°C with CL = 50 pF, confirming timing integrity across the full military-grade temperature range. Output drive strength scales with VCC - delivering 24 mA at 3.3 V and 32 mA at 4.5 V - while maintaining VOL ≤ 0.6 V and VOH ≥ VCC – 0.1 V under load.

Key Specifications

Pinout & Package

CLVC1G125MDCKREP uses the SC-70 (DCK) surface-mount package: 2.0 mm × 1.25 mm body, 0.65 mm pitch, 1.1 mm max height, moisture sensitivity level 1 (260°C reflow compatible).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G125QDRYR and 74LVC1G125GW,125, the CLVC1G125MDCKREP uniquely combines –55°C operation, JEDEC-qualified reliability pedigree, and production continuity support - making it the only option validated for mission-critical aerospace and defense subsystems requiring guaranteed long-term availability and extreme-temperature robustness.

Availability

CLVC1G125MDCKREP is available at Aetrix Electronics and suitable for industrial automation, aerospace avionics, and ruggedized test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CLVC1G125MDCKREP 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 industrial, automotive, and aerospace markets.

The SN74LVC1G125-EP product line delivers enhanced-product (EP) variants of standard LVC logic, engineered specifically for extended-temperature operation, controlled baseline manufacturing, and long-term supply assurance in mission-critical systems.

FAQ

What is the maximum operating temperature range for CLVC1G125MDCKREP?

The CLVC1G125MDCKREP is rated for continuous operation from –55°C to +125°C. This extended temperature range is verified per JEDEC JESD22-A108 stress tests including HAST, temperature cycling, and autoclave exposure. The specification applies across the full 1.65 V to 5.5 V VCC range and is documented in the "Recommended Operating Conditions" table of the official TI datasheet SCES455B.

Does CLVC1G125MDCKREP support 5-V input tolerance when VCC = 1.8 V?

Yes, CLVC1G125MDCKREP supports input voltages up to 5.5 V on both A and OE pins regardless of VCC setting (1.65 V to 5.5 V). This 5-V-tolerant input capability is explicitly confirmed in the "Recommended Operating Conditions" table and enables direct interfacing with legacy 5-V logic without external level shifters - a key feature verified in TI's characterization data.

How does the Ioff feature function in CLVC1G125MDCKREP during power-down?

The Ioff circuit in CLVC1G125MDCKREP disables all output paths when VCC = 0 V, limiting leakage current to ≤ ±10 µA (measured at 5.5 V applied to A/OE/Y). This prevents damaging reverse current flow from powered downstream circuits into the unpowered device - a critical requirement for hot-swap and partial-power-down architectures. The behavior is tested and guaranteed per JESD78 Class II latch-up standards.

What is the typical propagation delay (tpd) of CLVC1G125MDCKREP at 3.3 V?

At VCC = 3.3 V, CL = 15 pF, and TA = 25°C, the typical propagation delay (tpd) of CLVC1G125MDCKREP is 3.7 ns, with a maximum of 4.9 ns over the full –55°C to 125°C operating range (CL = 50 pF). These values are measured from A to Y under noninverting conditions and are published in the "Switching Characteristics" section of the SCES455B datasheet.

Is CLVC1G125MDCKREP pin-compatible with standard SN74LVC1G125 variants?

Yes, CLVC1G125MDCKREP shares identical SC-70 (DCK) 5-pin pinout, logic function, and electrical specifications with the commercial SN74LVC1G125 and automotive SN74LVC1G125-Q1. Pin 1 (OE), Pin 2 (A), Pin 3 (GND), Pin 4 (VCC), and Pin 5 (Y) match exactly - enabling drop-in replacement in existing layouts where extended temperature and enhanced reliability are required.