STMicroelectronics 74LVX05TTR

Overview

74LVX05TTR from STMicroelectronics is a low-voltage CMOS hex inverter with open-drain outputs, 5V-tolerant inputs, and 2V–3.6V operation. It delivers t_PD = 4.8 ns (typ.) at V_CC = 3.3 V, I_CC ≤ 2 µA (max) at 25°C, and VOLP = 0.3 V (typ.), enabling use in battery-powered 3.3V logic level-shifting and bus-driving applications.

For engineers reviewing the 74LVX05TTR datasheet, 74LVX05TTR pinout, 74LVX05TTR application, or 74LVX05TTR equivalent, key selection criteria include open-drain drive capability, 5V input tolerance with 3.3V supply, propagation delay stability across –55°C to +125°C, and ESD immunity (2 kV HBM).

Technical Context

The device implements six independent inverting buffers with open-drain outputs, each capable of sinking up to 4 mA while maintaining VOL ≤ 0.55 V at V_CC = 3.6 V. Input structure accepts 0–7 V regardless of V_CC, enabling safe interfacing between 5V peripherals and 3.3V microcontrollers.

All inputs feature power-down protection and integrated diode clamps; outputs are high-impedance when not driven low. The internal 3-stage buffered design ensures high noise immunity (VOLP = 0.3 V typ.) and latch-up immunity per JEDEC JESD78.

Key Specifications

Pinout & Package

TSSOP-14 package (4.4 mm × 5.0 mm, 0.65 mm pitch), lead-free and RoHS-compliant, optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC07APWR and 74LVC1G06GW, the 74LVX05TTR uniquely combines six open-drain inverters, guaranteed 5V input tolerance, and sub-µA standby draw - making it optimal for compact, mixed-voltage bus interface designs requiring minimal BOM count.

Availability

74LVX05TTR is available at Aetrix Electronics and suitable for I²C bus interfaces, microcontroller GPIO expansion, industrial sensor bus drivers, and battery-powered data loggers requiring stable component supply across extended temperature ranges.

Supply support for 74LVX05TTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The 74LVX series targets low-voltage, low-power logic applications requiring interoperability between 3.3V and 5V systems - emphasizing robustness, ESD resilience, and wide-temperature operation.

FAQ

Can 74LVX05TTR drive a 10 kΩ pull-up to 5V while powered from 3.3V?

Yes. Its 5V-tolerant inputs and open-drain outputs allow direct connection to a 5V pull-up. With I_O = 0.5 mA, V_OL remains ≤ 0.1 V at V_CC = 3.3 V, ensuring clean LOW assertion on 5V buses like I²C.

Does 74LVX05TTR require external current-limiting resistors on inputs?

No. Internal input protection diodes and power-down circuitry accept 0–7 V continuously without external resistors, even when V_CC = 0 V - simplifying design for hot-plug or power-gated subsystems.

What is the maximum capacitive load the outputs can drive reliably?

The device is characterized up to 50 pF (t_PD = 7.6 ns typ. at V_CC = 3.3 V). For loads >50 pF, propagation delay increases linearly; slew rate limiting ensures stable edge transitions without ringing.

Is 74LVX05TTR pin-compatible with standard 74HC05 or 74LS05?

It is functionally and pinout-compatible with 74-series 05 inverters (e.g., 74HC05), but differs in electrical behavior: open-drain outputs require pull-ups, and input thresholds are optimized for 3.3V systems rather than 5V TTL/CMOS levels.