Texas Instruments SN74LVC1G07DRLR

Overview

SN74LVC1G07DRLR from Texas Instruments is a single open-drain buffer/driver IC designed for level translation and wired-OR logic implementation in 1.65V–5.5V systems. It delivers 32mA sink current at 4.5V, supports 5.5V-tolerant I/O, achieves 4.2ns max propagation delay at 3.3V, and features Ioff for live insertion-used in SSDs, portable media players, and HDTV front-end signal conditioning.

For engineers reviewing the SN74LVC1G07DRLR datasheet, SN74LVC1G07DRLR pinout, SN74LVC1G07DRLR application, or SN74LVC1G07DRLR equivalent, key selection criteria include open-drain output drive strength (32mA), voltage translation capability (1.65V–5.5V VCC with 5.5V-tolerant inputs), thermal performance in SOT-5X3 (RθJA = 243°C/W), and Ioff-enabled partial-power-down operation.

Technical Context

The SN74LVC1G07DRLR implements a non-inverting open-drain buffer with no internal pull-up; external pull-up is required to define high-level output voltage and rise time. Its Ioff circuitry actively disables outputs when VCC = 0V, blocking back-drive current and enabling hot-plug compatibility in mixed-voltage subsystems.

It operates across –40°C to 125°C ambient temperature (per SOT-5X3 package rating), supports up/down voltage translation between disparate logic domains (e.g., 1.8V input driving 5V bus), and maintains specified switching performance (tpd ≤ 4.7ns at 3.3V, –40°C to 125°C) without latch-up risk (exceeds 100mA per JESD78 Class II).

Key Specifications

Pinout & Package

SOT-5X3 (DRL) package: 1.6mm × 1.6mm body size, 5-pin surface-mount, lead pitch 0.5mm, RoHS-compliant NiPdAuAg finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G07DBVR and SN74LVC1G07DPWR, the SN74LVC1G07DRLR strikes a balance between compactness (1.6mm × 1.6mm), manufacturability (gull-wing leads), and thermal resistance (243°C/W), making it optimal for mainstream portable and industrial designs where reflow yield and thermal headroom must coexist.

Availability

SN74LVC1G07DRLR is available at Aetrix Electronics and suitable for SSD power sequencing, HDTV HDMI hot-plug detection, and portable media player LED backlighting requiring stable component supply across automotive, industrial, and consumer product lifecycles.

Supply support for SN74LVC1G07DRLR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The SN74LVC1G07 series belongs to TI's LVC logic family-designed specifically for low-voltage, high-speed, mixed-signal interface applications requiring robust level translation, low power, and wide operating voltage flexibility.

FAQ

What is the maximum sink current specification for SN74LVC1G07DRLR?

The SN74LVC1G07DRLR supports a maximum sink current (IOL) of 32mA when VCC = 4.5V, as specified in the Electrical Characteristics table under Recommended Operating Conditions. This rating applies continuously across the full operating temperature range (–40°C to 125°C) and enables direct drive of LEDs, optocouplers, and wired-OR bus loads without external amplification. The device maintains this drive strength while preserving VOL ≤ 0.55V.

Does SN74LVC1G07DRLR support level translation between different voltage domains?

Yes, SN74LVC1G07DRLR supports bidirectional level translation: its inputs accept voltages up to 5.5V independent of VCC, and its open-drain output can be pulled up to any voltage ≤ 5.5V. For example, a 1.8V microcontroller GPIO can safely drive the A input while Y sinks current into a 5V bus-enabling seamless interface between disparate logic families without external translators.

What is the purpose of the Ioff feature in SN74LVC1G07DRLR?

The Ioff feature in SN74LVC1G07DRLR disables output leakage when VCC = 0V, limiting Ioff to ±10µA max. This prevents damaging back-current flow during live insertion, partial power-down, or asymmetric power sequencing-such as when an SSD module is hot-plugged into a powered host system. It eliminates need for external isolation components in modular designs.

Can SN74LVC1G07DRLR be used in wired-OR logic configurations?

Yes, SN74LVC1G07DRLR is explicitly designed for wired-OR (active-low) and wired-AND (active-high) implementations. Its open-drain output allows multiple SN74LVC1G07DRLR devices to share a common bus line with a single external pull-up resistor. When any output is low, the bus goes low-enabling interrupt aggregation, fault signaling, and bus arbitration in multi-master systems.

What is the thermal resistance (RθJA) of SN74LVC1G07DRLR in its SOT-5X3 package?

The junction-to-ambient thermal resistance (RθJA) of SN74LVC1G07DRLR in the SOT-5X3 (DRL) package is 243°C/W, as documented in the Thermal Information table. This value assumes standard JEDEC 2-layer board conditions and informs thermal design margins-e.g., at 32mA sink current and 3.3V VCC, power dissipation remains <110mW, resulting in <27°C junction rise above ambient under typical conditions.