Nexperia USA Inc. 74HCT00D,653

Overview

74HCT00D,653 from Nexperia is a quad 2-input NAND gate IC with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), 14-pin SO14 package (SOT108-1), propagation delay of 12 ns typical at VCC = 4.5 V and CL = 50 pF, and operating temperature range of −40 °C to +125 °C. It serves as a fundamental combinational logic building block in digital control circuits, bus interface logic, and power-on reset sequencing.

For engineers reviewing the 74HCT00D,653 datasheet, 74HCT00D,653 pinout, 74HCT00D,653 application, or 74HCT00D,653 equivalent, key selection criteria include TTL-level input compatibility, guaranteed operation up to +125 °C, SO14 thermal derating profile (10.1 mW/K above 100 °C), and static output drive capability of ±4 mA at VCC = 4.5 V.

Technical Context

This device implements four independent 2-input NAND gates using silicon-gate CMOS technology. Each gate features input clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The logic function follows standard Boolean NAND behavior: output is LOW only when both inputs are HIGH.

It complies with JEDEC JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V) standards, supports HBM ESD protection >2000 V and CDM >1000 V, and exhibits latch-up immunity exceeding 100 mA per JESD78 Class II Level B. Input leakage remains ≤±1 μA across full temperature and voltage range.

Key Specifications

Pinout & Package

74HCT00D,653 uses the SO14 plastic small outline package (SOT108-1), 14-lead, body width 3.9 mm, with standard 1.27 mm lead pitch and gull-wing leads. Pin 1 is marked by a notch or index area on the package top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT00D,653, the TSSOP variant offers superior thermal resistance in compact designs but demands tighter assembly control, while the TI SN74HCT00DR provides identical functionality with marginally longer delay and broader qualification scope-neither is pin-identical in thermal or reliability profile.

Availability

74HCT00D,653 is available at Aetrix Electronics and suitable for industrial control logic, microcontroller peripheral interface, power-on reset sequencing, and legacy bus interface logic requiring stable component supply across extended temperature ranges.

Supply support for 74HCT00D,653 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and discrete components for industrial, consumer, and communications markets.

The 74HCT00 series belongs to Nexperia's industry-standard logic family designed specifically for robust 5 V mixed-signal interfacing, emphasizing TTL compatibility, wide temperature operation, and long-term supply stability in cost-sensitive embedded systems.

FAQ

Can 74HCT00D,653 operate reliably at 3.3 V supply?

No. The 74HCT00D,653 is specified only for VCC = 4.5 V to 5.5 V. At 3.3 V, input thresholds (VIH ≥ 2.0 V) remain valid, but output drive strength degrades significantly below specification, and propagation delay increases beyond guaranteed limits. For 3.3 V systems, use 74LVC00 or 74AHC00 instead.

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

The datasheet specifies dynamic characteristics up to CL = 50 pF. Driving >50 pF increases propagation delay nonlinearly - at 100 pF, tpd rises ~35 % versus 50 pF. For loads >75 pF, add a buffer stage or reduce trace length and capacitance through layout optimization.

Is the SO14 package RoHS compliant and lead-free?

Yes. 74HCT00D,653 (SOT108-1) is manufactured in full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead content is <1000 ppm, and all homogeneous materials meet exemption 7a (Pb in high-melting-temperature type solders).

How does the input clamp diode affect interfacing with 12 V sensor signals?

The internal clamp diodes allow safe interface to 12 V signals when a series current-limiting resistor is used. With R ≥ 10 kΩ, input current stays below ±20 mA absolute maximum, preventing damage. However, the input will read HIGH only if the clamped voltage exceeds VIH (2.0 V), so resistor value must ensure sufficient voltage drop.