STMicroelectronics 74LVC86AMTR

Overview

74LVC86AMTR from STMicroelectronics is a low-voltage CMOS quad exclusive-OR gate with 14-pin SOIC (SOP) package, operating from 1.65 V to 3.6 V, delivering 4.2 ns max propagation delay at 3 V, ±24 mA output drive, and 5V-tolerant inputs for mixed-voltage interfacing in 3.3/5 V systems.

For engineers reviewing the 74LVC86AMTR datasheet, 74LVC86AMTR pinout, 74LVC86AMTR application, or 74LVC86AMTR equivalent, key selection criteria include symmetric output impedance, power-down protection on all I/Os, latch-up immunity >500 mA, ESD robustness (>2 kV HBM), and guaranteed PCI bus compatibility at 24 mA drive.

Technical Context

The 74LVC86AMTR implements four independent XOR logic functions using sub-micron C2MOS technology, supporting rail-to-rail input voltage range (0–5.5 V) while maintaining valid logic thresholds across 1.65–3.6 V supply. Its input structure enables safe 5 V signal acceptance without level shifters.

Propagation delays are balanced (tPLH ≅ tPHL), skew is limited to 1 ns, and dynamic noise margins are enhanced by low output impedance (24 mA sink/source) and controlled rise/fall times (≤2.5 ns at 3.3 V). Power-down protection ensures high-impedance behavior during VCC = 0 V operation.

Key Specifications

Pinout & Package

74LVC86AMTR uses a 14-pin Small Outline Package (SO-14 / SOP), 3.9 mm body width, 1.27 mm pitch, with standard JEDEC MO-153 mechanical dimensions and tape-and-reel packaging (T&R).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad XOR gate applications.

Compared with SN74LVC86APWR and 74AHC86PW,118, the 74LVC86AMTR uniquely balances 5 V input tolerance, sub-5 ns speed at 3.3 V, and SOIC manufacturability-making it optimal for industrial control boards requiring legacy signal compatibility and automated assembly.

Availability

74LVC86AMTR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, low-power sensor interface logic, and PCI bus signal conditioning requiring stable component supply and long-term production continuity.

Supply support for 74LVC86AMTR 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 74LVC logic family targets low-voltage, high-speed digital interfacing in mixed-signal embedded systems-emphasizing voltage translation, power efficiency, and robustness in harsh environments.

FAQ

Can 74LVC86AMTR operate reliably at 1.8 V supply?

Yes. The device is fully specified from 1.65 V to 3.6 V, with guaranteed logic thresholds, propagation delay (max 8.9 ns at 1.65–1.95 V), and output drive (±4 mA at 1.65–2.3 V). It supports 1.8 V FPGA or microcontroller I/O domains without level shifting.

Does 74LVC86AMTR require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs must be tied to VCC or GND to prevent floating states and increased ICC, but no external resistors are required beyond standard logic termination. Internal input structure avoids undefined states even with open inputs, though tying is mandatory per design best practice.

What is the maximum capacitive load this device can drive while maintaining 4.2 ns propagation delay?

The 4.2 ns max tPD is measured with CL = 50 pF and RL = 500 Ω. Driving loads >50 pF increases delay linearly; for example, at 100 pF, typical tPD rises to ~6.5 ns. For timing-critical paths, keep total net capacitance ≤50 pF including trace and load contributions.

Is 74LVC86AMTR pin-compatible with older 74LS86 or 74HC86 devices?

It is functionally and pin-compatible with 74-series 86 gates (e.g., 74LS86, 74HC86, 74HCT86) in 14-pin SOIC packages, sharing identical pinout and truth table. However, voltage ranges, drive strength, and input thresholds differ-direct replacement requires verification of supply and signal levels in the target system.