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Nexperia USA Inc. 74HCT00BQ,115
- Part No.:
- 74HCT00BQ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74HCT00BQ,115.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:915
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Product details
Overview
74HCT00BQ,115 from Nexperia is a quad 2-input NAND gate IC with TTL-compatible input thresholds, operating from 4.5 V to 5.5 V supply, delivering 4.32 V VOH at -4.0 mA and 0.15 V VOL at 4.0 mA, rated for -40 °C to +125 °C, and housed in a DHVQFN14 (SOT762-1) package for high-density logic interfacing in industrial control and sensor signal conditioning.
For engineers reviewing the 74HCT00BQ,115 datasheet, 74HCT00BQ,115 pinout, 74HCT00BQ,115 application, or 74HCT00BQ,115 equivalent, key selection concerns include TTL-level input compatibility, propagation delay of 12 ns (typ) at VCC = 4.5 V, thermal-enhanced QFN packaging, and guaranteed operation across extended temperature range without level-shifting circuitry.
Technical Context
This device implements four independent NAND gates using CMOS silicon technology with TTL-compatible input stage design, enabling direct interface with legacy 5 V TTL outputs while maintaining low static current (≤40 μA at VCC = 6.0 V) and high noise immunity (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V).
Each gate features input clamp diodes allowing safe interfacing to voltages exceeding VCC when used with current-limiting resistors, and the DHVQFN14 package provides enhanced thermal performance with 9.6 mW/K derating above 98 °C ambient, supporting stable operation in compact, thermally constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NAND - enables compact implementation of combinational logic, enable/disable control, and active-low signal inversion in digital subsystems. |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-signal systems without external regulation. |
| Propagation Delay | 12 ns (typ) at VCC = 4.5 V, CL = 50 pF - supports reliable timing in sub-40 MHz synchronous logic and debounce circuits. |
| Output Drive | ±4.0 mA (VOH/VOL specified at -4.0 mA / +4.0 mA) - sufficient to drive multiple 74-series inputs or small capacitive loads directly. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive ancillary modules, industrial PLC I/O, and power-conversion control logic. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - matches standard TTL output levels, eliminating need for level translators in legacy 5 V designs. |
| Power Dissipation | 500 mW max (SOT762-1), derates 9.6 mW/K above 98 °C - enables sustained operation in thermally dense PCB layouts with minimal heatsinking. |
Pinout & Package
DHVQFN14 (SOT762-1) package: leadless, 2.5 × 3 × 0.85 mm body, 14 terminals, exposed thermal pad (non-electrical, optional GND connection), 0.5 mm pitch, pin 1 index area marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | First NAND gate input A - accepts TTL-level signals; clamped to protect against overvoltage. |
| 2 | 1B | First NAND gate input B - paired with 1A for standard two-input logic function. |
| 3 | 1Y | First NAND gate output - open-drain compatible only when externally pulled up; drives standard CMOS/TTL loads. |
| 4 | 2A | Second NAND gate input A - electrically isolated from other gates; shares same VCC/GND reference. |
| 5 | 2B | Second NAND gate input B - identical electrical characteristics to 1A/1B. |
| 6 | 2Y | Second NAND gate output - complements 2A and 2B per Boolean NAND truth table. |
| 7 | GND | Ground reference - must be low-impedance connection; thermal pad may be connected to GND plane for improved heat dissipation. |
| 8 | 3Y | Third NAND gate output - routed to adjacent terminal for minimized trace length in layout. |
| 9 | 3A | Third NAND gate input A - positioned to support orthogonal routing in high-density layouts. |
| 10 | 3B | Third NAND gate input B - symmetrical placement with respect to 3A and 3Y. |
| 11 | 4Y | Fourth NAND gate output - final logic output; placed near corner for easy fanout routing. |
| 12 | 4A | Fourth NAND gate input A - completes quad gate set; pinout optimized for sequential signal flow. |
| 13 | 4B | Fourth NAND gate input B - last input terminal; matches timing and loading behavior of all other inputs. |
| 14 | VCC | Positive supply - requires local 100 nF ceramic decoupling; sensitive to noise due to CMOS input structure. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 4.5–5.5 V supply - eliminates level shifters when interfacing with legacy microcontrollers or 5 V peripherals. |
| Clamp diode protection | Integrated input diodes allow safe use with input voltages > VCC when series current limiting is applied - simplifies robustness design in noisy environments. |
| Extended temperature range | Specified from -40 °C to +125 °C - supports deployment in industrial motor drives, power supply supervisors, and automotive cabin electronics. |
| Low dynamic power | CPD = 22 pF - limits switching power to <1 μW/MHz per gate at 5 V, critical for battery-backed or energy-sensitive logic stages. |
| ESD robustness | HBM > 2000 V, CDM > 1000 V - reduces handling sensitivity and improves yield during SMT assembly and field service. |
Applications
| Industrial Control Logic | Sensor Interface Conditioning |
|---|---|
Use Scenario: Discrete safety interlock monitoring in PLC backplane modules where mechanical switch inputs require debouncing and AND/NAND combination before MCU sampling. IC Role / Device Role / Timing Role: Quad NAND gate implements hardware-based lockout logic, reset synchronization, and edge detection without software overhead. Use Value: Enables deterministic response <25 ns, avoids MCU interrupt latency, and sustains operation at 125 °C ambient in control cabinet environments. |
Use Scenario: Signal conditioning for analog sensor outputs digitized via comparator stages, requiring active-low enable gating before ADC sampling. IC Role / Device Role / Timing Role: Provides clean, rail-to-rail NAND-ed enable signal synchronized to system clock edges for precise sampling window control. Use Value: Delivers 0.15 V VOL at 4 mA ensures solid LOW assertion into ADC's digital input, preventing metastability during conversion trigger. |
| Legacy System Integration | Power Sequencing Supervision |
Use Scenario: Retrofitting modern microcontrollers into aging 5 V TTL-based instrumentation where address decoding and bus arbitration logic must remain unchanged. IC Role / Device Role / Timing Role: Replaces obsolete 74LS00 with pin-identical logic function and TTL-compatible thresholds, preserving timing margins. Use Value: Eliminates need for voltage translation or redesign; 12 ns propagation delay meets original LS-family timing budgets with margin. |
Use Scenario: Monitoring multiple DC/DC converter enable lines in telecom power shelves, asserting system READY only when all rails are stable. IC Role / Device Role / Timing Role: Four NAND gates combine individual PGOOD signals into single active-low system status flag with glitch-free output. Use Value: Input clamp diodes tolerate minor rail overshoot during startup; 4.32 V VOH at -4 mA ensures reliable pull-down of downstream enable latches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT00PW,118 | TSSOP14 (SOT402-1) package; 4.4 mm body width; 0.65 mm pitch; slightly higher thermal resistance than DHVQFN14. | Better suited for hand-soldering or prototyping; lower board-level reliability in high-vibration environments vs. QFN. | Select when manual rework or legacy footprint compatibility is required; avoid in space-constrained or high-reliability deployments. |
| SN74HCT00DR | Texas Instruments part; SOIC-14 (JEDEC MS-012); VIH/VIL specs match but propagation delay is 15 ns (typ) at 5 V. | Compatible with through-hole and wave-solder processes; wider body increases PCB area by ~3× vs. DHVQFN14. | Choose for mixed-technology boards or where TI sourcing preference exists; expect ~25 % longer delay impacting tight-timing paths. |
Compared with 74HCT00PW,118 and SN74HCT00DR, the 74HCT00BQ,115 offers superior thermal performance and smallest footprint, making it optimal for high-density industrial controllers where timing consistency and thermal management are critical - though its QFN package demands precision reflow and inspection.
Availability
74HCT00BQ,115 is available at Aetrix Electronics and suitable for industrial control logic, sensor interface conditioning, and power sequencing supervision requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT00BQ,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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HCT00BQ,115 belongs to Nexperia's industry-standard 74HCT logic family, engineered specifically for seamless integration between legacy TTL systems and modern CMOS-based controllers - emphasizing robustness, wide temperature operation, and drop-in replaceability.
FAQ
Is the thermal pad on the 74HCT00BQ,115 electrically connected?
No, the exposed thermal pad on the DHVQFN14 package (SOT762-1) is not electrically connected to any internal node. It may be left floating or soldered to a GND plane solely for thermal enhancement - no electrical requirement exists, and connecting it to any voltage other than GND risks damage.
Can 74HCT00BQ,115 operate reliably at 3.3 V supply?
No - the 74HCT00BQ,115 is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH ≥ 2.0 V) become marginal, and VOH drops below TTL HIGH recognition levels; use 74HC00BQ for 2.0–6.0 V operation or 74LVC00 for true 3.3 V compatibility.
What is the maximum capacitive load this device can drive without degrading propagation delay?
The datasheet specifies dynamic characteristics at CL = 50 pF. Driving loads >100 pF increases tpd nonlinearly - for example, at CL = 100 pF and VCC = 4.5 V, typical delay rises to ~32 ns. For loads >75 pF, add series termination or buffer stages to maintain timing integrity.
Does this part support hot insertion or live insertion into powered backplanes?
No - the 74HCT00BQ,115 lacks hot-swap protection circuitry. Its input clamp diodes are not rated for sustained current during live insertion, and VCC sequencing violations may cause latch-up. Use dedicated hot-swap controllers or power sequencers for such applications.
74HCT00BQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 40 µA
- Current - Output High, Low:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 12ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74HCT00BQ,115 FAQ
1.How can I place an order for 74HCT00BQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT00BQ,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 74HCT00BQ,115 reliable?
The price and inventory of 74HCT00BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT00BQ,115 is usually 5 days.
3.What payment methods are accepted for 74HCT00BQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT00BQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT00BQ,115?
74HCT00BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT00BQ,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 74HCT00BQ,115?
For technical support, including 74HCT00BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT00BQ,115 requirements.
6.How does Aetrix verify that 74HCT00BQ,115 is sourced from the original manufacturer or authorized distributors?
All 74HCT00BQ,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 74HCT00BQ,115 meets industry standards.
7.What is the process for return or replacement of 74HCT00BQ,115?
All 74HCT00BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT00BQ,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 74HCT00BQ,115 part is unused and in its original packaging.
Return procedure for 74HCT00BQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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