Diodes Incorporated 74AHC00S14-13

Overview

74AHC00S14-13 from Diodes Incorporated is a quad 2-input NAND gate IC in SO-14 package, operating from 2.0V to 5.5V supply, with 5.5V-tolerant inputs, 8 mA output drive at 4.5V, and Schmitt-trigger inputs for noise immunity-used in voltage translation and general-purpose logic interfacing in PC peripherals and consumer electronics.

For engineers reviewing the 74AHC00S14-13 datasheet, 74AHC00S14-13 pinout, 74AHC00S14-13 application, or 74AHC00S14-13 equivalent, key selection criteria include input voltage tolerance (5.5V), propagation delay (≤7.0 ns at 5V/50pF), output drive capability (±8 mA), Schmitt-trigger input hysteresis, and SO-14 package compatibility with legacy 74-series layouts.

Technical Context

This device implements four independent Boolean NAND functions (Y = A·B) using advanced CMOS process technology. Each gate features Schmitt-trigger inputs with defined hysteresis, enabling robust operation in noisy environments and clean signal conditioning for slow-rising or degraded waveforms.

It supports mixed-voltage system interfacing: 3.3V logic can drive its inputs while outputs swing rail-to-rail up to 5.5V, and absolute maximum ratings allow transient overvoltage handling up to 7.0V on VCC and I/O pins without damage.

Key Specifications

Pinout & Package

74AHC00S14-13 is housed in a 14-pin Small Outline (SO-14) package with standard 1.27 mm pitch, 8.53–8.74 mm body length, and 3.80–3.99 mm width-compatible with IPC-7351B SOIC-14 land patterns.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AHC00DR and 74LVC00AD,118, the 74AHC00S14-13 uniquely combines 5.5V input tolerance, Schmitt-trigger inputs, and SO-14 compatibility-making it optimal for mixed-voltage, noise-prone industrial and consumer interfaces where signal integrity and layout simplicity are critical.

Availability

74AHC00S14-13 is available at Aetrix Electronics and suitable for PC peripheral interface design, consumer audio signal routing, and industrial PLC I/O expansion requiring stable component supply and long-term manufacturing continuity.

Supply support for 74AHC00S14-13 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, specializing in high-reliability, industry-standard logic and power solutions for computing, industrial, and consumer markets.

The 74AHC logic family targets robust, drop-in replacements for legacy TTL and CMOS designs-emphasizing wide voltage operation, enhanced ESD resilience, and pin-compatible upgrades for 74-series systems.

FAQ

Can 74AHC00S14-13 operate reliably at 2.0V supply?

Yes. The device is fully specified down to 2.0V: VIH(min) = 1.5V, VOL(max) = 0.1V, and tPD(max) = 14.5 ns (CL = 50pF) at 2.0V. It maintains rail-to-rail output swing and guaranteed logic thresholds across the full -40°C to +125°C temperature range at this voltage.

What is the maximum capacitive load this device can drive without exceeding timing specs?

At VCC = 5.0V, the datasheet guarantees tPD ≤ 7.0 ns with CL = 50pF. Driving >50pF increases propagation delay nonlinearly; for CL = 100pF, measured tPD rises to ~10.5 ns. Layout best practice limits total node capacitance-including trace and fanout-to ≤40pF for timing-critical paths.

Are unused inputs required to be terminated, 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 cause excessive ICC, oscillation, or ESD susceptibility. Direct connection (not pull-up/down resistors) is recommended for lowest power and noise immunity in static logic applications.

Does this part support hot-swap or live-insertion in backplane applications?

No. The 74AHC00S14-13 lacks bus-hold or Ioff partial-power-down protection. During hot-swap, unpowered VCC creates undefined internal node biasing, risking latch-up or excessive current draw. Use dedicated hot-swap logic buffers (e.g., TI SN74AVC4T245) for such applications.