STMicroelectronics 74V1T08STR

Overview

74V1T08STR from STMicroelectronics is a single 2-input AND gate in SOT23-5L package, designed for high-speed 5V logic interfacing with tPD = 4.7ns (typ), VCC = 4.5–5.5V, symmetrical output drive (±8mA), and input tolerance up to 7V independent of supply. It enables level-shifting between 5V and 3V systems while maintaining TTL-compatible thresholds (VIH ≥ 2V, VIL ≤ 0.8V).

For engineers reviewing the 74V1T08STR datasheet, 74V1T08STR pinout, 74V1T08STR application, or 74V1T08STR equivalent, key selection criteria include propagation delay matching, input overvoltage resilience (0–7V), power-down protection, and SOT23-5L footprint compatibility in space-constrained digital control and interface circuits.

Technical Context

This device implements a two-stage CMOS buffer-output architecture using sub-micron C2MOS technology, delivering balanced tPLH ≅ tPHL delays and high noise immunity. Its inputs feature diode-clamped protection and accept 0–7V regardless of VCC, enabling robust hot-swap and mixed-voltage domain operation.

The output stage provides symmetrical sourcing/sinking capability (|IOH| = IOL ≥ 8mA at VCC = 4.5V) and operates across –55°C to +125°C. Quiescent ICC is limited to 1µA (max) at 25°C, supporting low-power standby modes without external pull-ups or disable circuitry.

Key Specifications

Pinout & Package

SOT23-5L package: 5-pin surface-mount, 1.45mm height, 2.8–3.0mm length, 1.5–1.75mm width, 0.95mm pin pitch. RoHS-compliant, tape-and-reel delivery (74V1T08STR).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input AND gate applications.

Compared with SN74LVC1G08DBVR and NC7SZ08P5X, the 74V1T08STR uniquely combines 7V input tolerance, –55°C to +125°C operation, and 5V-specific optimization-making it the only choice for ruggedized 5V systems exposed to voltage transients or extreme environments.

Availability

74V1T08STR is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, programmable logic glue, and legacy system upgrade interfaces requiring stable component supply and long-term obsolescence management.

Supply support for 74V1T08STR 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, designing and manufacturing analog, MEMS, power, and microcontroller solutions for industrial, automotive, and consumer markets.

The 74V series targets high-speed, low-power 5V CMOS logic applications, emphasizing robustness, wide operating ranges, and interoperability with legacy TTL systems.

FAQ

Can 74V1T08STR operate with VCC = 3.3V?

No. The 74V1T08STR is specified only for VCC = 4.5V to 5.5V. At 3.3V, VIH and VIL thresholds are not guaranteed, and output drive strength falls outside specification. Use LVC or AHC series devices for 3.3V operation.

Does 74V1T08STR support hot-plug insertion when VCC is off?

Yes. Its inputs feature power-down protection: they remain high-impedance with no reverse current flow when VCC = 0V, and accept 0–7V signals safely. This prevents backfeeding and bus conflicts during live insertion.

What is the maximum capacitive load this device can drive reliably?

Test data shows stable operation up to CL = 50pF with tPLH/tPHL ≤ 9.5ns (max) at VCC = 5.0V. For loads exceeding 50pF, propagation delay increases linearly; design margin requires verification at target frequency and temperature.

Is there a pin-compatible 74V1T08 variant in SOT323-5L?

Yes. The 74V1T08CTR is the identical functional device in SOT323-5L package. Pinout, electrical specs, and timing match 74V1T08STR exactly-only package dimensions and thermal resistance differ.