STMicroelectronics 74V1G08STR

Overview

74V1G08STR from STMicroelectronics is a single 2-input AND gate in high-speed CMOS technology, operating from 2V to 5.5V supply, with 3.8ns typical propagation delay at 5V, ±8mA symmetrical output drive, and input tolerance up to 7V independent of VCC - used for level-shifting and noise-immune logic interfacing in mixed-voltage embedded control systems.

For engineers reviewing the 74V1G08STR datasheet, 74V1G08STR pinout, 74V1G08STR application, or 74V1G08STR equivalent, key selection criteria include its 28% VCC noise immunity, power-down protected inputs, rail-to-rail input voltage acceptance (0–7V), and SOT23-5L package compatibility with space-constrained PCB layouts.

Technical Context

This device implements a two-stage buffered CMOS AND gate using sub-micron silicon gate C2MOS process, delivering balanced tPLH/tPHL propagation delays and stable output under varying load and temperature. Its input structure enables 0–7V signal acceptance regardless of VCC, supporting 5V-to-3V interface translation without external biasing.

The internal circuit includes input diode protection, power-down input clamping, and symmetrical output stage design ensuring |IOH| = |IOL| ≥ 8mA at 4.5V - critical for driving capacitive loads and fan-out in industrial I/O conditioning and sensor signal gating.

Key Specifications

Pinout & Package

SOT23-5L package: 5-pin surface-mount, 1.45mm max height, 2.8–3.0mm length, 1.5–1.75mm width, 0.95mm pitch; thermally enhanced for reflow compatibility and board-level reliability.

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 74V1G08STR uniquely combines 7V input tolerance, 3.8ns speed at 5V, and 1µA quiescent current - making it optimal for robust, mixed-voltage industrial control where signal integrity and power efficiency are jointly constrained.

Availability

74V1G08STR is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control, and mixed-voltage microcontroller I/O applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74V1G08STR 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The 74V series targets high-reliability, wide-supply CMOS logic for harsh-environment applications - emphasizing input robustness, thermal stability, and interoperability across legacy and modern voltage domains.

FAQ

Can 74V1G08STR be operated with VCC = 2.5V while accepting 5V inputs?

Yes. The device supports VCC as low as 2V and accepts input voltages from −0.5V to +7.0V regardless of supply voltage. At VCC = 2.5V, VIH is guaranteed ≥1.5V and VIL ≤0.5V, ensuring clean logic recognition of 5V TTL signals without level-shifting circuitry.

Is the 74V1G08STR pinout compatible with other SOT23-5 logic gates?

Yes - Pin 1 (1A), Pin 2 (1B), Pin 3 (GND), Pin 4 (1Y), and Pin 5 (VCC) follow JEDEC-standard SOT23-5 logic gate pinout. It shares footprint and solder profile compatibility with SN74LVC1G08DBVR and NC7SZ08P5X, enabling drop-in replacement in existing layouts.

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

At VCC = 4.5V, the device delivers ≥8mA output current, supporting up to 50pF total load (including PCB trace and input capacitance) while maintaining tPD ≤7.0ns and VOL ≤0.55V. For loads >30pF, layout decoupling within 3mm of Pin 5 is recommended to minimize ground bounce.

Does 74V1G08STR require external pull-up or pull-down resistors on unused inputs?

No. Inputs feature internal power-down protection and high-impedance clamping - floating inputs are safe and will not cause excessive ICC or undefined outputs. However, for deterministic logic states in noisy environments, tying unused inputs to VCC or GND via 10kΩ resistors is advised per STMicroelectronics application note AN2012.