STMicroelectronics 74V1T86CTR

Overview

74V1T86CTR from STMicroelectronics is a single high-speed CMOS exclusive-OR (XOR) gate in SOT323-5L package, operating at 4.5–5.5 V, with 4.8 ns typical propagation delay, ±8 mA symmetrical output drive, and input tolerance up to 7 V independent of supply. It enables level-shifting between 5 V and 3 V logic domains in compact interface circuits.

For engineers reviewing the 74V1T86CTR datasheet, 74V1T86CTR pinout, 74V1T86CTR application, or 74V1T86CTR equivalent, key selection criteria include its rail-tolerant inputs, low quiescent current (1 µA max), balanced tPLH/tPHL delays, and guaranteed 8 mA output sink/source capability under 4.5 V supply.

Technical Context

This device implements a two-input XOR logic function using sub-micron C2MOS technology, supporting true bidirectional voltage translation via 0–7 V input acceptance regardless of VCC. Its power-down protection prevents back-driving damage during supply sequencing.

The symmetrical output impedance ensures matched rise/fall times and minimizes duty-cycle distortion in clock or data path applications. Propagation delays are specified at CL = 15 pF and 50 pF, with worst-case tPHL/tPLH ≤ 9.0 ns over –55°C to +125°C.

Key Specifications

Pinout & Package

SOT323-5L package: ultra-small surface-mount outline (1.80 × 2.40 mm body, 0.65 mm pitch), 5-terminal plastic case with exposed pad not present; optimized for high-density routing and thermal performance in space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G86DBVR and NC7SZ86P5X, the 74V1T86CTR uniquely delivers 7 V input tolerance at 5 V operation - essential for fault-resilient interfacing where supply sequencing or voltage transients cannot be fully controlled.

Availability

74V1T86CTR is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control modules, portable medical devices, and legacy system adapter boards requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74V1T86CTR 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 industrial, automotive, and consumer markets.

The 74V series targets high-speed, low-power, and robust interface logic for mission-critical embedded systems - emphasizing rail-tolerant I/O, wide temperature operation, and long-term industrial availability.

FAQ

Can the 74V1T86CTR operate with VCC = 3.3 V?

No. The recommended operating VCC range is strictly 4.5 V to 5.5 V. At 3.3 V, the device does not meet guaranteed specifications for VOH, VOL, or propagation delay; input thresholds (VIH = 2 V min, VIL = 0.8 V max) also assume 5 V-compatible signaling levels.

Is the 74V1T86CTR pin-compatible with standard 74LVC1G86 variants?

No. While both use 5-pin packages, pin assignments differ: 74V1T86CTR uses Pin 1 = 1A, Pin 2 = 1B, Pin 3 = GND, Pin 4 = 1Y, Pin 5 = VCC; most LVC variants assign VCC to Pin 5 but place GND at Pin 3 - however, layout and decoupling requirements also differ due to distinct internal ESD structures.

Does the 74V1T86CTR support hot-swap insertion when VCC is unpowered?

Yes. Its power-down protection ensures all inputs remain high-impedance and non-damaging when VCC = 0 V, and inputs tolerate –0.5 V to +7.0 V regardless of supply state - enabling safe live insertion into powered-backplane systems.

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

The AC specifications are characterized at CL = 15 pF and 50 pF, with tPLH/tPHL ≤ 9.0 ns at 50 pF and VCC = 5 V. Driving >50 pF increases delay nonlinearly and may degrade edge monotonicity; for loads >30 pF, add series termination or buffer staging per layout validation.