Diodes Incorporated 74AHC86T14-13

Overview

74AHC86T14-13 from Diodes Incorporated is a quad 2-input XOR gate IC in TSSOP-14 package, operating from 2.0V to 5.5V supply, with 8mA output drive at 4.5V, 5.5V-tolerant inputs, and Schmitt-trigger inputs for noise immunity-used in voltage translation and digital logic interfacing in PC peripherals and set-top boxes.

For engineers reviewing the 74AHC86T14-13 datasheet, 74AHC86T14-13 pinout, 74AHC86T14-13 application, or 74AHC86T14-13 equivalent, key selection factors include input voltage tolerance (5.5V), propagation delay (3.4ns typ @ 5V, CL=15pF), output drive capability (±8mA), Schmitt-trigger input hysteresis, and TSSOP-14 thermal performance in space-constrained designs.

Technical Context

This device implements four independent Boolean XOR functions (Y = A ⊕ B) using advanced CMOS AHC technology, delivering rail-to-rail output swing and guaranteed monotonic switching across its full 2.0–5.5V VCC range. Input thresholds are internally biased to support 3.3V/5V mixed-voltage system interfacing without external level shifters.

All inputs feature Schmitt-trigger action with typical hysteresis of 0.3V at 3.3V, enabling robust operation in noisy environments. The device meets JESD 22 ESD standards (2kV HBM, 1kV CDM) and JESD 78 latch-up immunity (>250mA), supporting industrial-grade reliability in embedded control and consumer electronics.

Key Specifications

Pinout & Package

TSSOP-14 (Thin Shrink Small Outline Package, 4.4mm × 5.0mm body, 0.65mm pitch) with exposed pad option not supported; JEDEC MO-153 compliant; thermal resistance θJA ≈ 140°C/W (standard PCB layout).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC86APWR and 74HC86PW,118, the 74AHC86T14-13 uniquely balances 5.5V input tolerance, Schmitt noise immunity, and sub-4ns speed-making it optimal for mixed-voltage, noise-prone interfaces where timing and robustness are co-constrained.

Availability

74AHC86T14-13 is available at Aetrix Electronics and suitable for PC peripheral interface design, set-top box control logic, and hard disk drive LED controller applications requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.

Supply support for 74AHC86T14-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.

The 74AHC logic family targets high-speed, low-power, mixed-voltage digital interfacing-designed specifically for compatibility with both 3.3V and 5V systems while maintaining industrial temperature and ESD robustness.

FAQ

Can 74AHC86T14-13 operate reliably at 2.0V supply?

Yes. The device is fully specified down to 2.0V VCC, with guaranteed VIH of 1.5V and VOL of 0.1V at 2.0V, enabling interoperability with ultra-low-voltage microcontrollers and battery-powered logic monitors. Propagation delay increases to 11.0ns max at 2.0V, CL=15pF.

Is the TSSOP-14 package thermally adequate for continuous 8mA output loading?

Yes. Under standard JEDEC 2-layer PCB conditions (1in² copper), the TSSOP-14 package maintains junction temperature below 100°C at 8mA per output and 25°C ambient. Thermal derating is required above 70°C ambient, with maximum safe continuous output current dropping to ~5mA at 100°C ambient.

Do unused inputs require termination, and if so, how?

Yes. Per datasheet Note 5, all unused inputs must be tied to either VCC or GND to prevent floating states that increase ICC and cause erratic switching. Direct connection is preferred; pull-up/pull-down resistors (≥10kΩ) may be used if routing constraints exist, but add capacitance that slightly degrades tPD.

Does this device support hot-swap or live-insertion into a powered backplane?

No. The 74AHC86T14-13 lacks powered-off protection or Ioff specification. Applying input signals before VCC stabilization risks latch-up or excessive ICC due to internal parasitic paths. Power sequencing-VCC first, then inputs-is mandatory for reliable operation in modular systems.