Diodes Incorporated 74LV07AT14-13

Overview

74LV07AT14-13 from Diodes Incorporated is a hex buffer IC with six independent open-drain outputs, designed for voltage-level translation and signal isolation in mixed-voltage systems. It operates across 2.0V–5.5V supply, accepts 5.5V-tolerant inputs, supports partial power-down via IOFF, sinks up to 12mA at 4.5V, and features Schmitt-trigger inputs for noise immunity - used in PC peripheral interfaces and embedded I²C bus pull-up control.

For engineers reviewing the 74LV07AT14-13 datasheet, 74LV07AT14-13 pinout, 74LV07AT14-13 application, or 74LV07AT14-13 equivalent, key selection criteria include open-drain drive capability, IOFF-enabled power-down safety, input voltage translation (3.3V → 5V), and TSSOP-14 thermal and layout compatibility in space-constrained industrial controllers.

Technical Context

The 74LV07AT14-13 implements six non-inverting buffers with open-drain outputs, requiring external pull-up resistors to define high logic levels. Its IOFF circuit disables output leakage during VCC = 0V, preventing backflow current in hot-swap or partial-power-down systems.

All inputs incorporate Schmitt-trigger action with hysteresis (~0.3V at 3V), enabling robust noise rejection on slow-rising signals. Input voltage tolerance up to 5.5V allows direct interfacing with 5V logic while powered from 3.3V or 2.5V rails - critical for bidirectional level-shifting in SMBus and GPIO expansion applications.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.4mm × 5.0mm body, 0.65mm pitch, exposed pad optional, JEDEC MO-153 compliant. Thermal resistance θJA ≈ 140°C/W (standard PCB).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC07APW and 74AHC1G07SE-7, the 74LV07AT14-13 uniquely combines IOFF protection, 5.5V input tolerance, and six-channel synchronization in a single TSSOP-14 package - essential for robust, mixed-voltage industrial control designs requiring guaranteed power-state safety.

Availability

74LV07AT14-13 is available at Aetrix Electronics and suitable for industrial sensor interfaces, I²C bus extension, and hot-swappable module control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 74LV07AT14-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The 74LV07A series targets voltage translation and signal isolation in mixed-supply systems, emphasizing robustness across temperature, ESD resilience, and safe partial-power-down operation for embedded control applications.

FAQ

Can the 74LV07AT14-13 be used as a level shifter between 1.8V and 5V logic?

No - its minimum VCC is 2.0V, and inputs are only guaranteed functional down to VCC − 0.5V. While 5.5V-tolerant inputs allow 5V signals when VCC = 3.3V or 5V, it cannot accept 1.8V inputs reliably or translate from 1.8V to 5V due to insufficient input threshold margins and lack of sub-2V operation support.

What is the maximum recommended pull-up resistor value for Y outputs at 5V with 12mA sink?

For VOL ≤ 0.55V at IOL = 12mA and VCC = 4.5–5.5V, the maximum pull-up resistor is 390Ω (calculated as (5.5V − 0.55V)/12mA). Higher values increase rise time and may violate I²C or SMBus timing; 1kΩ is typical for 400kHz I²C with <400pF bus capacitance.

Does the 74LV07AT14-13 require external bypass capacitors?

Yes - a 100nF ceramic capacitor must be placed between VCC (pin 14) and GND (pin 7), located within 5mm of the pins. This suppresses high-frequency supply noise and prevents output oscillation during fast transitions, especially critical when driving capacitive loads >50pF.

How does IOFF behavior differ from standard CMOS high-impedance state?

IOFF actively disables the output FET's channel when VCC = 0V, limiting leakage to <5μA regardless of input/output voltage. Standard tri-state outputs remain vulnerable to back-current if driven while unpowered; IOFF provides fail-safe isolation during power sequencing, hot-swap, or brown-out conditions.