Texas Instruments SN74LV6T07QWBQARQ1

Overview

SN74LV6T07QWBQARQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive hex open-drain buffer IC with integrated voltage translation, operating from 1.65 V to 5.5 V supply, supporting 5.5-V tolerant inputs and delivering ≤11.5 ns propagation delay at 5 V/50 pF, used for LED control and inter-module signal translation in vehicle body electronics.

For engineers reviewing the SN74LV6T07QWBQARQ1 datasheet, SN74LV6T07QWBQARQ1 pinout, SN74LV6T07QWBQARQ1 application, or SN74LV6T07QWBQARQ1 equivalent, key selection considerations include its wettable-flank WQFN-14 package, LVxT input threshold architecture enabling 1.2 V → 5 V up-translation and 5 V → 0.8 V down-translation, and open-drain output compatibility with wired-AND bus topologies.

Technical Context

The SN74LV6T07QWBQARQ1 implements six independent positive-logic buffers (Y = A) with LVxT-enhanced inputs-featuring reduced VIH/VIL thresholds for up-translation and 5.5-V tolerance for down-translation-paired with open-drain CMOS outputs requiring external pull-up resistors. Its input structure supports 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V CMOS logic levels across a single supply.

Each channel operates with rail-to-rail input voltage range (0–5.5 V), delivers ≤25 mA sink current per output, maintains ≤0.35 V VOL at 8 mA/5 V, and achieves >6.67 Mbps data rate under RPU = 1 kΩ/CL = 30 pF conditions. Thermal performance is characterized by RθJA = 88.3°C/W in the BQA package.

Key Specifications

Pinout & Package

SN74LV6T07QWBQARQ1 is packaged in a 3 mm × 2.5 mm wettable-flank QFN (BQA) with 14 terminals and an exposed thermal pad. The package supports automated optical inspection (AOI) via side-fillet formation and provides enhanced thermal dissipation (RθJB = 56.8°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Compared with SN74LV6T07QWBQARQ1, SN74LVC1G07QDBVRQ1 offers smaller size but sacrifices channel count and translation capability, while SN74LV1T07DCKR matches translation performance but omits automotive qualification-making SN74LV6T07QWBQARQ1 the sole option for AEC-Q100-compliant, multi-channel, bidirectional voltage translation in compact WQFN packaging.

Availability

SN74LV6T07QWBQARQ1 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment system interfaces, and ADAS sensor hubs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.

Supply support for SN74LV6T07QWBQARQ1 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 company specializing in analog and embedded processing solutions, with leadership in automotive-grade logic, power management, and signal chain products.

SN74LV6T07QWBQARQ1 belongs to TI's LVxT automotive logic family, designed specifically for voltage translation and signal conditioning in harsh-environment vehicle subsystems where interoperability across mixed-voltage domains is critical.

FAQ

What is the maximum data rate supported by SN74LV6T07QWBQARQ1 in open-drain mode?

SN74LV6T07QWBQARQ1 supports over 6.67 Mbps operation under RPU = 1 kΩ and CL = 30 pF conditions, as verified in the datasheet's Features section. This performance is enabled by its low propagation delay (≤11.5 ns at 5 V/50 pF) and strong output sink capability (25 mA), making SN74LV6T07QWBQARQ1 suitable for high-speed automotive bus signaling and LED PWM dimming applications.

Can SN74LV6T07QWBQARQ1 translate a 5 V input signal to a 1.8 V output domain?

Yes - SN74LV6T07QWBQARQ1 performs down-translation from 5 V inputs to any valid supply voltage, including 1.8 V. Its 5.5-V tolerant inputs accept 5 V logic directly, and the open-drain output, when pulled up to 1.8 V, delivers a clean 0–1.8 V signal. This behavior is explicitly confirmed in the datasheet's Features and Description sections, confirming SN74LV6T07QWBQARQ1's suitability for interfacing legacy 5 V peripherals with modern low-voltage MCUs.

Is the thermal pad on SN74LV6T07QWBQARQ1 required to be connected to ground?

The thermal pad on SN74LV6T07QWBQARQ1 may be connected to GND or left floating, as stated in Table 5-1 of the datasheet. However, TI recommends connecting it to the PCB ground plane to improve thermal dissipation (RθJB = 56.8°C/W) and reduce EMI. It must never be connected to any signal or supply other than GND. This design guidance applies specifically to the BQA package used in SN74LV6T07QWBQARQ1.

Does SN74LV6T07QWBQARQ1 support wired-AND functionality across multiple channels?

Yes - all six open-drain outputs of SN74LV6T07QWBQARQ1 can be externally wired together to implement wired-AND logic, as confirmed in Section 9.2.1.3 of the datasheet. This configuration allows multiple ECUs to share a common interrupt line, where any device pulling low asserts the bus. SN74LV6T07QWBQARQ1's consistent VOL specification (≤0.35 V at 8 mA) ensures reliable logic-low establishment across temperature and voltage ranges.

What is the minimum supply voltage required for SN74LV6T07QWBQARQ1 to maintain AEC-Q100 Grade 1 operation?

SN74LV6T07QWBQARQ1 maintains full AEC-Q100 Grade 1 compliance (–40°C to +125°C) across its entire recommended operating range of 1.65 V to 5.5 V. The minimum 1.65 V supply is validated for all electrical characteristics including propagation delay, VOL, and VIH/VIL thresholds. This allows SN74LV6T07QWBQARQ1 to operate reliably in low-power automotive subsystems powered by buck regulators or battery-sensed rails.