onsemi 74LVX08M

Overview

74LVX08M from onsemi is a low-voltage quad 2-input AND gate IC designed for level-translating logic interfaces between 5 V and 3.3 V systems. It operates from 2.0 V to 3.6 V, supports input voltages up to 6.5 V, delivers ±25 mA output drive, and achieves 4.8 ns typical propagation delay at 3.3 V with 15 pF load - used in mixed-voltage digital control subsystems.

For engineers reviewing the 74LVX08M datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage tolerance (6.5 V), guaranteed simultaneous switching noise performance, TSSOP-14 package compatibility, and dynamic threshold compliance across −40°C to +85°C.

Technical Context

The 74LVX08M implements four independent 2-input AND gates in a single monolithic CMOS device. Its inputs are 5 V tolerant, enabling direct interfacing of legacy 5 V logic outputs to 3.3 V supply-rail logic without external level shifters. The design guarantees simultaneous switching noise immunity and meets dynamic input/output voltage thresholds per JEDEC standards.

It operates under recommended conditions of VCC = 2.0–3.6 V, TA = −40°C to +85°C, and supports input rise/fall times up to 100 ns/V. Unused inputs must be tied HIGH or LOW - floating inputs are prohibited per design specification.

Key Specifications

Pinout & Package

TSSOP-14 wide-body (Case 948G) package, 4.9 mm × 4.4 mm footprint, 0.65 mm pitch, lead-free/halide-free construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar AND gate logic applications.

Compared with SN74LVC08APWR and 74AHC08PW,118, the 74LVX08M uniquely provides 6.5 V input tolerance at 3.3 V VCC - critical for robustness in legacy interface scenarios where input overshoot or mixed-voltage probing may occur.

Availability

74LVX08M is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical diagnostic equipment requiring stable component supply and long-term obsolescence management.

Supply support for 74LVX08M 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

onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The LVX logic family targets low-voltage, mixed-signal interface applications where 5 V-to-3.3 V level translation, low noise, and guaranteed dynamic threshold behavior are essential.

FAQ

What is the maximum input voltage the 74LVX08M can tolerate?

The 74LVX08M supports DC input voltages up to 6.5 V regardless of VCC level - a key feature enabling direct connection to 5 V logic families without external protection. This rating is absolute and applies across the full operating temperature range of −40°C to +85°C. Exceeding 6.5 V risks permanent damage per the Absolute Maximum Ratings table in the official onsemi datasheet for 74LVX08M.

Does the 74LVX08M require pull-up resistors on its outputs?

No, the 74LVX08M features standard CMOS totem-pole outputs - not open-drain - so external pull-up resistors are unnecessary for normal logic-level operation. Each output actively drives HIGH or LOW depending on input states. Pull-ups would only be needed if implementing wired-AND configurations, which are outside the intended function of the 74LVX08M.

Is the 74LVX08M pin-compatible with standard 74-series AND gates like the 74HC08?

The 74LVX08M uses the same 14-pin TSSOP layout and pin assignments as industry-standard quad 2-input AND gates including the 74HC08, with inputs on pins 1/2, 4/5, 8/9, 11/12 and outputs on pins 3, 6, 10, 13. However, it is not a drop-in replacement due to differences in input voltage tolerance, propagation delay, and supply voltage range - verify timing and interface requirements before substitution.

What is the typical propagation delay of the 74LVX08M at 3.3 V?

The 74LVX08M exhibits a typical propagation delay (tPLH/tPHL) of 4.8 ns at VCC = 3.3 V with a 15 pF capacitive load, as specified in the AC Electrical Characteristics table. Under worst-case conditions (85°C, 2.0 V VCC, 50 pF load), the maximum delay increases to 13.5 ns - critical for setup/hold timing analysis in synchronous digital systems using the 74LVX08M.

Can unused inputs on the 74LVX08M be left floating?

No - unused inputs on the 74LVX08M must be tied either HIGH (to VCC) or LOW (to GND). Floating inputs cause increased ICC, unpredictable output states, and potential oscillation due to undefined threshold crossing. This requirement is explicitly stated in Note 1 of the Recommended Operating Conditions section of the 74LVX08M datasheet and applies to all four gates independently.