Diodes Incorporated 74AHCT00T14-13

Overview

74AHCT00T14-13 from Diodes Incorporated is a quad 2-input NAND gate IC with TTL-compatible inputs, push-pull outputs, 4.5–5.5 V supply range, 8 mA output drive at V_CC = 4.5 V, and Schmitt-trigger input action - used in PC motherboard logic control, peripheral interface signal conditioning, and set-top box power sequencing.

For engineers reviewing the 74AHCT00T14-13 datasheet, 74AHCT00T14-13 pinout, 74AHCT00T14-13 application, or 74AHCT00T14-13 equivalent, key selection criteria include input voltage compatibility (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V), propagation delay (≤9.0 ns @ CL = 50 pF, -40°C to +125°C), output drive capability (±8 mA), ESD robustness (2 kV HBM), and TSSOP-14 thermal profile for high-density PCB layouts.

Technical Context

This device implements four independent Boolean NAND functions (Y = A·B) using advanced CMOS process technology optimized for 5 V TTL-level interoperability. All inputs feature Schmitt-trigger hysteresis (typ. 0.5 V), enabling noise-immune signal reception in electrically noisy environments such as disk drive controllers and digital TV front-ends.

It operates across industrial temperature range (-40°C to +125°C) with guaranteed DC parameters including V_OH ≥ 3.70 V (I_OH = -8 mA), V_OL ≤ 0.55 V (I_OL = 8 mA), and ICC ≤ 40 μA at V_CC = 3.6 V - supporting low-static-power system designs without compromising switching speed.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.9 mm × 4.4 mm body, 0.65 mm pitch, 1.2 mm height, lead-free and RoHS-compliant; optimized for automated SMT assembly and thermal dissipation in space-constrained applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AHCT00PW, 74AHCT00T14-13 offers identical functional behavior and thermal performance but differs in manufacturer-specific reliability testing and tape-and-reel logistics; versus 74LVC00PW, it provides essential 5 V TTL compatibility and noise immunity at the cost of higher V_CC minimum, making it the sole viable option for mixed-voltage industrial control boards.

Availability

74AHCT00T14-13 is available at Aetrix Electronics and suitable for PC motherboard control logic, optical disc drive interface circuits, and set-top box power management systems requiring stable component supply, long-lifecycle availability, and RoHS-compliant manufacturing.

Supply support for 74AHCT00T14-13 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers in Asia, Europe, and the US, and manufacturing facilities certified to ISO 9001 and IATF 16949 standards.

This device belongs to Diodes' 74AHCT logic family - engineered for seamless 5 V TTL interoperability, low static power, and robust operation in consumer, computing, and industrial applications where signal integrity and long-term supply stability are critical.

FAQ

Is 74AHCT00T14-13 compatible with 3.3 V logic inputs?

No - its inputs require TTL-level thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V) and are specified only for 4.5–5.5 V V_CC. Direct connection to 3.3 V outputs may result in marginal or undefined logic states; use level translators or 74LVC-series devices for 3.3 V systems.

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

It is characterized up to 50 pF load capacitance with guaranteed t_PD ≤ 11.0 ns over full temperature range. For loads >50 pF, propagation delay increases nonlinearly and output rise/fall times degrade; add series termination or buffer stages for >100 pF routing or multi-load fanout.

Does this part have internal pull-up or pull-down resistors on inputs?

No - inputs are high-impedance CMOS with no internal biasing. Unused inputs must be externally tied to V_CC or GND per datasheet recommendation (Note 5); floating inputs cause increased ICC, oscillation, and potential latch-up due to intermediate voltage states.

Can 74AHCT00T14-13 be used in automotive applications?

Yes - it is qualified for -40°C to +125°C operating junction temperature and meets AEC-Q100 stress test requirements for logic devices. However, it is not automotive-grade qualified out-of-box; system-level validation per ISO 16750 and vehicle EMC standards remains the customer's responsibility.