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Nexperia USA Inc. 74HC03DB,118
- Part No.:
- 74HC03DB,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HC03DB,118.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,468
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Product details
Overview
74HC03DB,118 from Nexperia is a quad 2-input NAND gate IC with open-drain outputs, designed for wired-AND logic, level translation, and bus interface applications. It operates from 2.0 V to 6.0 V, delivers propagation delay as low as 8 ns at VCC = 6.0 V, supports -40 °C to +125 °C ambient range, and features CMOS-level input thresholds. Used in industrial control I/O expansion and sensor signal conditioning circuits.
For engineers reviewing the 74HC03DB,118 datasheet, 74HC03DB,118 pinout, 74HC03DB,118 application, or 74HC03DB,118 equivalent, key selection factors include open-drain output drive capability (IO = -25 mA), input clamp diode support for overvoltage-tolerant interfacing, TTL/CMOS input compatibility variants, and SO14 package thermal derating behavior above 100 °C.
Technical Context
This device implements four independent NAND gates, each with open-drain output topology enabling shared-bus pull-up configurations and voltage-level agnostic logic combining. Input clamp diodes allow safe connection to signals exceeding VCC when used with current-limiting resistors.
It adheres to JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, supports HBM ESD >2000 V and CDM >1000 V, and maintains guaranteed switching performance across -40 °C to +125 °C with static VIH/VIL thresholds defined per supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NAND with open-drain outputs - enables wired-AND, I²C-compatible bus driving, and level-shifting without external transistors. |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing (e.g., 3.3 V logic controlling 5 V peripherals). |
| Propagation Delay | 8 ns typical at VCC = 6.0 V, CL = 50 pF - ensures timing-critical combinational logic meets sub-10 ns path budgets. |
| Output Drive | -25 mA sink capability - directly drives LEDs, relays, or standard 5 V TTL loads without buffer stages. |
| Input Thresholds | CMOS-compatible (VIH = 0.7×VCC min, VIL = 0.3×VCC max) - ensures noise margin >1.0 V at 5 V operation. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood industrial and extended-range embedded control environments. |
| ESD Rating | HBM >2000 V, CDM >1000 V - reduces need for external protection in board-level ESD-prone zones. |
Pinout & Package
74HC03DB,118 is supplied in SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A (nA) | First input of each NAND gate - accepts CMOS-level signals; includes internal clamp diode to VCC/GND. |
| 2, 5, 10, 13 | Input B (nB) | Second input of each NAND gate - electrically identical to nA pins; supports same overvoltage interface method. |
| 3, 6, 8, 11 | Output Y (nY) | Open-drain output - requires external pull-up; sinks up to 25 mA; floats high when inactive. |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry - must be low-impedance return path. |
| 14 | VCC | Positive supply rail - powers internal logic; also serves as clamp diode anode for input overvoltage protection. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (2.0–6.0 V) | Enables single part number deployment across 3.3 V microcontroller I/O and legacy 5 V subsystems without level shifters. |
| Input clamp diodes | Permits direct connection to 12 V sensors or 24 V field buses using series current-limiting resistors - eliminates discrete protection diodes. |
| Open-drain outputs | Supports bidirectional bus arbitration (e.g., I²C SDA/SCL emulation), multi-master wired-AND logic, and mixed-voltage pull-up configurations. |
| High noise immunity | Guaranteed 40 % VCC noise margin at 5 V - suppresses false triggering from motor drive or RF coupling in industrial enclosures. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events on PCB traces. |
Applications
| Industrial PLC I/O Expansion | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Adding isolated digital input channels to a programmable logic controller rack using 24 V dry-contact sensors. IC Role / Device Role / Timing Role: NAND gate configured as active-low input buffer with open-drain output tied to 5 V pull-up; performs voltage translation and contact debouncing interface. Use Value: Eliminates need for optocoupler + Schmitt trigger stage - reduces BOM count by 2 components per channel while maintaining 125 °C operating margin. |
Use Scenario: Converting analog comparator outputs (0–12 V swing) into clean 3.3 V logic levels for MCU GPIO capture. IC Role / Device Role / Timing Role: Open-drain NAND used as level translator with 3.3 V pull-up; inputs tolerate 12 V via built-in clamp diodes and series resistor. Use Value: Achieves <10 ns propagation skew between channels - critical for synchronized multi-sensor edge detection in motor control feedback loops. |
| I²C Bus Signal Extension | LED Driver Interface Logic |
|
Use Scenario: Extending I²C bus length beyond 1 m by buffering SDA/SCL lines with repeater logic in noisy factory environments. IC Role / Device Role / Timing Role: Two NAND gates wired as inverters (with pull-up) form non-inverting repeater; open-drain outputs match I²C electrical requirements. Use Value: Maintains bus rise time <300 ns at 400 kHz despite 100 pF line capacitance - avoids clock stretching and communication timeouts. |
Use Scenario: Driving common-anode RGB LED arrays from 3.3 V MCU GPIOs while sinking up to 20 mA per segment. IC Role / Device Role / Timing Role: NAND gate acts as active-low driver: MCU output controls one input, fixed HIGH on second input yields inverted output to LED cathode. Use Value: Delivers 20 mA sink current at VOL ≤ 0.4 V - ensures full LED brightness without external FETs or current-limiting resistors on the high side. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT03DB,118 | TTL-compatible inputs (VIH = 2.0 V min), otherwise identical pinout, timing, and open-drain structure. | Better suited for interfacing with legacy 5 V TTL outputs; less suitable for 2.0–3.6 V CMOS-only systems due to higher VIH threshold. | Select when connecting to 74LS/74F series or microcontrollers with weak high-drive strength on outputs. |
| SN74LVC03APW | 3.3 V only (1.65–3.6 V), lower ICC (1 μA typ), faster tpd (4.5 ns @ 3.3 V), but no input clamp diodes. | Not usable for >VCC input interfacing; requires external protection if connected to 5 V or higher signals. | Prefer for battery-powered 3.3 V systems where ultra-low quiescent current and speed outweigh overvoltage tolerance needs. |
Compared with 74HC03DB,118, the 74HCT03DB,118 offers better compatibility with older TTL logic but sacrifices low-VCC operation below 4.5 V, while the SN74LVC03APW improves speed and power efficiency in 3.3 V domains but removes critical input overvoltage protection required in industrial sensor interfaces.
Availability
74HC03DB,118 is available at Aetrix Electronics and suitable for industrial automation, sensor interface design, and bus signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74HC03DB,118 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, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC03DB,118 belongs to Nexperia's HC logic family, engineered for robustness in harsh environments and optimized for wired-AND, level translation, and mixed-voltage interface applications.
FAQ
What is the maximum sink current per output of the 74HC03DB,118?
The 74HC03DB,118 guarantees a minimum output sink current of 25 mA per open-drain output at VO = 0.4 V and VCC = 6.0 V, as specified in Table 6 (VOL test condition). This rating holds across the full -40 °C to +125 °C operating range and supports direct LED or relay coil driving without external buffers.
Can the 74HC03DB,118 safely interface with 12 V signals?
Yes - its inputs feature integrated clamp diodes to VCC and GND. When used with a series current-limiting resistor (e.g., 10 kΩ for 12 V → VCC = 5 V), it safely clamps excess voltage without damage, enabling direct connection to 12 V sensors or industrial fieldbus nodes without external protection components.
Is the 74HC03DB,118 pin-compatible with the 74HCT03DB,118?
Yes - both devices share identical SO14 (SOT108-1) pinout, package dimensions, and functional pin assignments. The only difference is input voltage thresholds: 74HC03DB,118 uses CMOS-level inputs (VIH ≥ 0.7×VCC), while 74HCT03DB,118 uses TTL-level inputs (VIH ≥ 2.0 V), making them electrically interchangeable only within compatible supply and source logic families.
Does the 74HC03DB,118 require external pull-up resistors on its outputs?
Yes - all four outputs are open-drain and cannot source current. An external pull-up resistor (typically 1–10 kΩ) must be connected between each output pin and the desired logic HIGH voltage rail (e.g., 3.3 V or 5 V) to establish defined HIGH states and enable wired-AND functionality or I²C-style bus operation.
74HC03DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- Open Drain
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- -, 5.2mA
- Input Logic Level - Low:
- 0.5V ~ 1.8V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 16ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74HC03DB,118 FAQ
1.How can I place an order for 74HC03DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC03DB,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74HC03DB,118 reliable?
The price and inventory of 74HC03DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC03DB,118 is usually 5 days.
3.What payment methods are accepted for 74HC03DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC03DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC03DB,118?
74HC03DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC03DB,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74HC03DB,118?
For technical support, including 74HC03DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC03DB,118 requirements.
6.How does Aetrix verify that 74HC03DB,118 is sourced from the original manufacturer or authorized distributors?
All 74HC03DB,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HC03DB,118 meets industry standards.
7.What is the process for return or replacement of 74HC03DB,118?
All 74HC03DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC03DB,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74HC03DB,118 part is unused and in its original packaging.
Return procedure for 74HC03DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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