STMicroelectronics 74LVC08AMTR

Overview

74LVC08AMTR from STMicroelectronics is a low-voltage CMOS quad 2-input AND gate operating from 1.65 V to 3.6 V, delivering 4.1 ns max propagation delay at 3.0 V, ±24 mA output drive, and 5 V-tolerant inputs for mixed-voltage interfacing in 3.3/5 V systems.

For engineers reviewing the 74LVC08AMTR datasheet, 74LVC08AMTR pinout, 74LVC08AMTR application, or 74LVC08AMTR equivalent, key selection criteria include input voltage tolerance, symmetrical output drive strength, latch-up immunity (>500 mA), ESD robustness (HBM > 2000 V), and TSSOP-14 package compatibility with legacy 74-series footprints.

Technical Context

This device implements four independent AND logic functions using sub-micron C2MOS technology, enabling rail-to-rail output swing and balanced tPLH/tPHL propagation delays across its full 1.65–3.6 V supply range. Input thresholds scale with VCC (VIH = 0.65VCC, VIL = 0.35VCC) for reliable operation down to 1.65 V.

All I/O pins feature integrated protection diodes and power-down isolation, ensuring safe operation during partial power-down states and preventing back-drive current flow when VCC = 0 V. The design supports PCI bus signaling levels at 24 mA load without external termination.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 14-pin surface-mount outline with exposed pad not present; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC08APW and 74AHC08PW, the 74LVC08AMTR offers the widest valid V_CC range (1.65–3.6 V) with guaranteed 5 V input tolerance across that entire span, making it uniquely suited for portable and multi-rail embedded systems where supply headroom is constrained.

Availability

74LVC08AMTR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical patient monitor interfaces, and networking equipment status logic requiring stable component supply and long-term lifecycle assurance.

Supply support for 74LVC08AMTR 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, specializing in microcontrollers, power management, analog ICs, and discrete devices for industrial, automotive, and consumer markets.

The 74LVC series targets low-voltage, high-speed digital logic applications in battery-powered, space-constrained, and mixed-supply systems-designed specifically to replace legacy 74HC/HCT families while enabling next-generation energy-efficient designs.

FAQ

Is 74LVC08AMTR compatible with 5 V logic outputs when powered at 3.3 V?

Yes. All inputs are 5 V tolerant across the full 1.65–3.6 V V_CC range, meaning they safely accept 0–5.5 V input signals without damage or clamping action-even when V_CC = 3.3 V. This eliminates need for external level shifters in mixed-voltage interfaces.

What is the minimum supply voltage for guaranteed logic operation?

The 74LVC08AMTR guarantees correct truth table behavior and timing specifications down to 1.65 V V_CC. Below this, data retention is maintained to 1.2 V, but logic functionality is not assured. Operation at 1.65 V delivers full 24 mA output drive and 4.1 ns max t_PD at rated load.

Does this device require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs may be tied directly to V_CC or GND. The device has no internal weak pull-ups or pull-downs, but its high input impedance (<5 µA leakage) and defined VIH/VIL thresholds ensure stable logic states when externally terminated-no resistors needed for basic static biasing.

Can 74LVC08AMTR drive standard TTL loads?

Yes. At V_CC = 3.3 V, the device sources/sinks ≥24 mA, exceeding the ±0.4 mA requirement of standard TTL inputs. Its VOH ≥ 2.2 V and VOL ≤ 0.55 V at 24 mA meet TTL voltage thresholds, enabling direct interface without additional buffering in most cases.