NXP Semiconductors 74HC00DB,112

Overview

74HC00DB,112 from Nexperia is a quad 2-input NAND gate in SO14 (SOT108-1) package, operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, propagation delay as low as 7 ns at VCC = 6.0 V, and specified for -40 °C to +125 °C industrial temperature range. It serves as a fundamental combinational logic building block in digital control, interface buffering, and signal conditioning circuits.

For engineers reviewing the 74HC00DB,112 datasheet, 74HC00DB,112 pinout, 74HC00DB,112 application, or 74HC00DB,112 equivalent, this page delivers verified functional identity, validated SO14 pin mapping, confirmed static/dynamic electrical specs across temperature, and real-world use context for reliable logic design and BOM validation.

Technical Context

The device implements four independent 2-input NAND gates with Schmitt-trigger–free CMOS inputs and push-pull TTL-compatible outputs. Each gate exhibits symmetrical HIGH/LOW output voltage thresholds referenced to VCC, with input clamping diodes enabling safe interfacing to voltages exceeding VCC when current-limited.

Its logic function follows standard Boolean NAND behavior: output is LOW only when both inputs are HIGH; otherwise output is HIGH. Propagation delays (tpd) and transition times (tt) are characterized under defined load (CL = 50 pF) and supply conditions, with CPD = 22 pF used to calculate dynamic power dissipation in high-frequency operation.

Key Specifications

Pinout & Package

74HC00DB,112 is supplied in plastic small outline package (SO14), SOT108-1, with 14 leads and 3.9 mm body width. Pin 1 is marked by a notch or index area on the package top edge.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC00D,118, the 74HC00DB,112 adds guaranteed +125 °C operation without altering pinout or logic behavior; versus SN74HC00DR, it offers tighter VIH/VIL symmetry and higher ESD robustness, making it preferable for harsh-environment industrial control.

Availability

74HC00DB,112 is available at Aetrix Electronics and suitable for industrial control logic, microcontroller I/O expansion, digital signal conditioning, and legacy bus interface applications requiring stable component supply across extended temperature ranges.

Supply support for 74HC00DB,112 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 essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for reliability and energy efficiency.

The 74HC00 series belongs to Nexperia's standard logic product line, designed specifically for robust, low-power, wide-supply digital interfacing in industrial, consumer, and computing applications where proven functionality and long-term supply stability are critical.

FAQ

What is the maximum clock frequency supported by 74HC00DB,112?

The 74HC00DB,112 is a combinational logic device-not a clocked sequential IC-so it has no inherent clock frequency limit. Its usable toggle rate depends on propagation delay (7 ns typical at VCC = 6.0 V) and system-level factors like load capacitance and trace inductance. In practice, reliable operation up to ~70 MHz is achievable with proper PCB layout and 50 pF loading.

Can 74HC00DB,112 be used with a 3.3 V supply?

Yes. The 74HC00DB,112 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, VIH is guaranteed ≥2.1 V and VIL ≤1.35 V, providing >1.0 V noise margin. Output drive remains ±4.0 mA, sufficient for driving modern 3.3 V CMOS loads without degradation.

Is there a pin-compatible 74HCT00 version in SO14?

Yes: 74HCT00D,118 is the TTL-input compatible counterpart in identical SO14 (SOT108-1) packaging. It accepts 0.8 V/2.0 V input thresholds at VCC = 4.5–5.5 V, enabling direct interfacing with legacy 5 V TTL outputs while maintaining the same pinout and output drive capability.

Does 74HC00DB,112 require external pull-up or pull-down resistors on unused inputs?

Unused inputs must be terminated to a defined logic level-either VCC or GND-to prevent floating nodes that cause increased supply current, erratic output behavior, or localized heating. Internal input leakage is ≤±1 μA, so a 10 kΩ resistor suffices; direct connection is preferred for lowest noise susceptibility.