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NXP Semiconductors 74LVC38ABQ,115
- Part No.:
- 74LVC38ABQ,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74LVC38ABQ,115.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,117
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Product details
Overview
74LVC38ABQ,115 from NXP Semiconductors is a quad 2-input NAND gate IC with open-drain outputs, designed for level translation between 3.3 V and 5 V logic domains. It operates across 1.2 V to 5.5 V supply, supports −40 °C to +125 °C ambient range, and features 5 V-tolerant inputs-enabling use in mixed-voltage I²C bus pull-up, wired-AND arbitration, and GPIO expansion circuits.
For engineers reviewing the 74LVC38ABQ,115 datasheet, 74LVC38ABQ,115 pinout, 74LVC38ABQ,115 application, or 74LVC38ABQ,115 equivalent, this device serves as a voltage-flexible logic interface component where open-drain drive, wide VCC range, and JEDEC-compliant ESD robustness (HBM >2000 V) are critical selection criteria.
Technical Context
The 74LVC38ABQ,115 implements four independent NAND gates, each with open-drain output capable of wired-OR/wired-AND configuration. Its input structure accepts 0–5.5 V signals regardless of VCC, enabling bidirectional level shifting without external components.
It complies with JEDEC standards JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V), and delivers propagation delays as low as 0.5 ns at VCC = 2.7 V with matched tPZL/tPLZ skew ≤1.5 ns across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NAND with open-drain outputs - enables wired-AND bus arbitration and I²C-compatible pull-up operation |
| Supply Voltage Range | 1.2 V to 5.5 V - supports single-supply operation across LVC-family voltage domains including 1.8 V, 2.5 V, 3.3 V, and 5 V systems |
| Input Voltage Tolerance | 0 V to 6.5 V absolute max; 5 V tolerant at any VCC - allows direct interfacing with legacy 5 V TTL/CMOS without level shifters |
| Operating Temperature | −40 °C to +125 °C - qualified for industrial and extended-temperature embedded control applications |
| Propagation Delay | tPZL/tPLZ = 0.5 ns (min) at VCC = 2.7 V - ensures timing-critical bus handshaking and synchronous logic interfacing |
| ESD Robustness | HBM >2000 V, MM >200 V, CDM >1000 V - meets industrial-grade reliability requirements without external protection |
| Output Drive | 24 mA sink at VCC = 3.0 V (VOL ≤ 0.55 V) - sufficient for driving 10 kΩ pull-ups on 3.3 V buses or multiple CMOS inputs |
Pinout & Package
DHVQFN14 package: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 14 terminals; body size 2.5 × 3 × 0.85 mm (SOT762-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A (Pins 1, 4, 9, 12) | Data input A for NAND gates 1–4 | Accepts 0–5.5 V logic; 5 V tolerant regardless of VCC; no level-shifting circuitry required |
| 1B, 2B, 3B, 4B (Pins 2, 5, 10, 13) | Data input B for NAND gates 1–4 | Independent logic inputs per gate; compatible with TTL, CMOS, and mixed-voltage signal sources |
| 1Y, 2Y, 3Y, 4Y (Pins 3, 6, 8, 11) | Open-drain output for NAND gates 1–4 | Requires external pull-up; supports wired-AND, I²C, SMBus, and interrupt bus sharing |
| GND (Pin 7) | Ground reference | 0 V return path for all logic and power currents; must be low-impedance for noise immunity |
| VCC (Pin 14) | Positive supply | Supplies internal logic; sets output high-level threshold and determines VOL performance |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant inputs | Enables direct connection to 5 V microcontrollers or peripherals while powered from 1.8 V or 3.3 V rails |
| Wide VCC range (1.2–5.5 V) | Reduces BOM count by supporting multiple voltage domains with one logic family across system layers |
| Open-drain outputs | Permits shared-bus configurations (e.g., I²C, reset lines) without contention or need for external diodes |
| JEDEC-compliant ESD protection | HBM >2000 V ensures robust handling during assembly and field operation in unshielded environments |
| −40 °C to +125 °C operation | Validated for under-hood automotive modules, industrial PLCs, and outdoor telecom equipment |
Applications
| I²C Bus Level Translation | GPIO Expansion Interface |
|---|---|
Use Scenario: Interfacing a 3.3 V microcontroller I²C master with 5 V sensor slaves on a shared bus. IC Role / Device Role / Timing Role: Acts as bidirectional level translator using open-drain outputs and 5 V-tolerant inputs; replaces discrete MOSFET translators. Use Value: Eliminates external FETs and resistors; maintains I²C timing compliance (tBUF, tHD;STA) across voltage domains. |
Use Scenario: Expanding digital I/O on an FPGA or SoC with limited native GPIO, requiring shared interrupt signaling. IC Role / Device Role / Timing Role: Provides four independent open-drain outputs that can be wire-OR'd into a single interrupt line to the host processor. Use Value: Reduces PCB routing complexity and enables priority-agnostic interrupt aggregation without contention risk. |
| Wired-AND Arbitration Logic | Industrial Control Reset Distribution |
Use Scenario: Multiple microcontrollers asserting a common system reset line only when all agree on fault condition. IC Role / Device Role / Timing Role: Each NAND gate implements active-low AND logic; outputs tied together form a wired-AND bus. Use Value: Ensures deterministic reset assertion only when all upstream conditions are met; avoids race conditions from discrete logic. |
Use Scenario: Distributing a clean, synchronized reset signal to multiple subsystems (ADC, DAC, communication ICs) in a programmable logic controller. IC Role / Device Role / Timing Role: Serves as a reset synchronizer and fanout buffer with open-drain outputs pulled to local VCC domains. Use Value: Guarantees monotonic reset deassertion across voltage islands; eliminates ground bounce from simultaneous switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NAND gate with open-drain applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC38AQPWRQ1 | Automotive AEC-Q100 Grade 1 qualified (−40 °C to +125 °C); identical logic and pinout; same DHVQFN14 package | Required for automotive ECUs; includes PPAP documentation and extended reliability testing | Select when automotive qualification and traceability are mandatory; otherwise 74LVC38ABQ,115 offers cost and lead-time advantage |
| 74LVC00ABQ,115 | Same package and temperature range but features push-pull (not open-drain) outputs; lacks 5 V input tolerance above VCC | Suitable only for same-voltage-domain logic buffering; cannot replace 74LVC38ABQ,115 in wired-AND or level translation roles | Choose only if open-drain functionality is unnecessary and lower static power (ICC < 10 µA) is prioritized over interface flexibility |
Compared with SN74LVC38AQPWRQ1, the 74LVC38ABQ,115 provides identical electrical behavior at lower cost and shorter lead time for industrial use; compared with 74LVC00ABQ,115, it uniquely enables bus-sharing and mixed-voltage interfacing due to its open-drain architecture and 5 V-tolerant inputs.
Availability
74LVC38ABQ,115 is available at Aetrix Electronics and suitable for industrial control systems, IoT edge nodes, and test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for 74LVC38ABQ,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The 74LVC38ABQ,115 belongs to NXP's LVC logic family, engineered for low-voltage, high-speed, mixed-signal interfacing in space-constrained and thermally demanding applications.
FAQ
What is the maximum supply voltage rating for the 74LVC38ABQ,115?
The 74LVC38ABQ,115 has an absolute maximum supply voltage (VCC) of +6.5 V, but its recommended operating range is 1.2 V to 5.5 V. Operation above 5.5 V voids functional guarantees and risks permanent damage per JEDEC limiting values. The 74LVC38ABQ,115 must be operated within 1.2–5.5 V for reliable NAND logic behavior and ESD robustness.
Can the 74LVC38ABQ,115 be used to translate 5 V signals to a 1.8 V system?
Yes-the 74LVC38ABQ,115 features 5 V-tolerant inputs that accept 0–5.5 V signals regardless of VCC. When powered at 1.8 V, it correctly interprets 5 V HIGH inputs and drives open-drain outputs compatible with 1.8 V pull-ups. This makes the 74LVC38ABQ,115 suitable for down-translation in mixed-voltage interfaces without external components.
Does the 74LVC38ABQ,115 support I²C bus operation?
Yes-the 74LVC38ABQ,115's open-drain outputs and 5 V-tolerant inputs meet I²C physical layer requirements. It can serve as a level translator or bus extender when configured with appropriate pull-up resistors. The 74LVC38ABQ,115 achieves tPZL/tPLZ ≤ 4.0 ns at 3.3 V, supporting standard-mode (100 kHz) and fast-mode (400 kHz) timing budgets.
What is the thermal performance of the DHVQFN14 package used by the 74LVC38ABQ,115?
The DHVQFN14 package (SOT762-1) of the 74LVC38ABQ,115 has a thermal derating of 4.5 mW/K above 60 °C. At +125 °C ambient, its total power dissipation is rated at 500 mW. The exposed die pad improves thermal conduction; however, the 74LVC38ABQ,115 datasheet specifies no electrical or mechanical requirement to solder it-floating or GND connection is acceptable.
How does the 74LVC38ABQ,115 handle unused inputs?
Unused inputs on the 74LVC38ABQ,115 must be terminated to a defined logic level-either VCC or GND-to prevent floating states that cause increased ICC, noise susceptibility, or erratic output behavior. Leaving inputs unconnected violates the recommended operating conditions and may result in unpredictable NAND gate operation across temperature and voltage ranges for the 74LVC38ABQ,115.
74LVC38ABQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 14-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- Open Drain
- Voltage - Supply:
- 1.2V ~ 5.5V
- Current - Quiescent (Max):
- 40 µA
- Current - Output High, Low:
- -, 32mA
- Input Logic Level - Low:
- 0.7V ~ 0.8V
- Input Logic Level - High:
- 1.7V ~ 2V
- Max Propagation Delay @ V, Max CL:
- 2.3ns @ 3.3V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74LVC38ABQ,115 FAQ
1.How can I place an order for 74LVC38ABQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC38ABQ,115 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 74LVC38ABQ,115 reliable?
The price and inventory of 74LVC38ABQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC38ABQ,115 is usually 5 days.
3.What payment methods are accepted for 74LVC38ABQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC38ABQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC38ABQ,115?
74LVC38ABQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC38ABQ,115 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 74LVC38ABQ,115?
For technical support, including 74LVC38ABQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC38ABQ,115 requirements.
6.How does Aetrix verify that 74LVC38ABQ,115 is sourced from the original manufacturer or authorized distributors?
All 74LVC38ABQ,115 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 74LVC38ABQ,115 meets industry standards.
7.What is the process for return or replacement of 74LVC38ABQ,115?
All 74LVC38ABQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC38ABQ,115, 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 74LVC38ABQ,115 part is unused and in its original packaging.
Return procedure for 74LVC38ABQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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