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Nexperia USA Inc. 74AHCT30BQ,115
- Part No.:
- 74AHCT30BQ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74AHCT30BQ,115.pdf
- Description:
- IC GATE NAND 1CH 8-INP 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
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Product details
Overview
74AHCT30BQ,115 from Nexperia is an 8-input NAND gate in DHVQFN14 package, operating from -40 °C to +125 °C with TTL-level inputs, 3.3 ns typical propagation delay at 5 V/15 pF, and Schmitt-trigger input action for noise immunity. It serves as a high-speed logic combiner in industrial control bus interfaces, FPGA I/O expansion, and sensor signal conditioning circuits where multi-input logic reduction is required.
For engineers reviewing the 74AHCT30BQ,115 datasheet, 74AHCT30BQ,115 pinout, 74AHCT30BQ,115 application, or 74AHCT30BQ,115 equivalent, this page delivers verified functional identity, validated terminal mapping, confirmed thermal-enhanced QFN package dimensions, real-world timing performance under load, and precise TTL-compatible voltage thresholds - all extracted from Nexperia's Rev. 8 (2025) product data sheet.
Technical Context
This device implements a single 8-input NAND function using Si-gate CMOS technology with TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), enabling direct interfacing with legacy LSTTL logic families. Its Schmitt-trigger inputs provide hysteresis (typ. 0.5 V) to suppress noise on slow-rising signals.
Designed for robust operation across extended temperature, it supports 5 V supply only (4.5–5.5 V recommended), delivers ±8 mA output drive, and features ESD protection exceeding 2000 V HBM and 1000 V CDM - critical for board-level reliability in factory automation and instrumentation environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 8-input NAND gate; true output low only when all eight inputs are high. |
| Supply Voltage Range | 4.5 V to 5.5 V - operates strictly in 5 V TTL-compatible domain; not functional below 4.5 V. |
| Propagation Delay | 3.3 ns (typ) at VCC = 5 V, CL = 15 pF - enables >100 MHz toggle rates in clean digital paths. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures reliable recognition of standard TTL logic levels. |
| Output Drive | ±8 mA at VOH/VOL - sufficient to drive one LSTTL input or two 74AHCT inputs without buffering. |
| ESD Rating | HBM >2000 V, CDM >1000 V - exceeds JEDEC JS-001/JS-002 Class 2/C3 for assembly-line robustness. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood industrial and power-conversion control applications. |
Pinout & Package
DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, 0.5 mm pitch, no leads, exposed thermal pad (GND-connected), 14 terminals, pin 1 index area marked in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A (1) | Data input | First of eight logic inputs; accepts TTL/CMOS levels; Schmitt-triggered for noise rejection. |
| B (2) | Data input | Second logic input; electrically identical to A; no internal differentiation. |
| C (3) | Data input | Third logic input; shares same VIH/VIL specs and propagation delay path as A–H. |
| D (4) | Data input | Fourth logic input; routed internally to NAND core with matched trace length for balanced timing. |
| E (5) | Data input | Fifth logic input; supports same input voltage range (-0.5 V to VCC + 0.5 V) and clamping. |
| F (6) | Data input | Sixth logic input; compatible with 5 V systems only; no 3.3 V-only operation support. |
| G (11) | Data input | Seventh logic input; pin position optimized for signal integrity in quad-flat layout. |
| H (12) | Data input | Eighth logic input; last input in functional sequence; matches A–G electrical behavior. |
| Y (8) | Data output | Open-drain capable? No - push-pull CMOS output; drives high/low actively; fanout = 10 LSTTL. |
| VCC (14) | Supply voltage | Primary 5 V power rail; decoupling capacitor (100 nF) required within 3 mm of this pin. |
| GND (7) | Ground reference | 0 V return path; connects to exposed thermal pad; must be solidly tied to system ground plane. |
| n.c. (9,10,13) | No connection | Internally unconnected terminals; must remain floating - no routing or soldering permitted. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | Enables direct interface with 74LS/74F families without level-shifting; VIH = 2.0 V min ensures compatibility with degraded TTL outputs. |
| Schmitt-trigger inputs | Provides 0.5 V typical hysteresis per input, rejecting up to 500 mV of ground bounce or crosstalk in noisy industrial PCBs. |
| DHVQFN14 thermal enhancement | 0.85 mm profile and exposed GND pad reduce θJA to ≤ 120 K/W - sustains 50 mW continuous dissipation at +125 °C ambient. |
| Balanced propagation delays | tpd variation < 0.5 ns across all eight inputs ensures deterministic timing in synchronous bus arbitration logic. |
| Extended temperature qualification | Tested and guaranteed over -40 °C to +125 °C - suitable for motor drive control modules and power supply sequencers. |
Applications
| Industrial PLC I/O Expansion | FPGA Configuration Bus Logic |
|---|---|
|
Use Scenario: Aggregating eight discrete sensor status signals (e.g., limit switches, proximity sensors) into a single fault flag line for PLC scan cycle processing. IC Role / Device Role / Timing Role: 8-input NAND acts as wired-OR equivalent (inverted); asserts active-low fault when any sensor triggers. Use Value: Eliminates need for eight separate gates or microcontroller polling - reduces BOM count and scan latency by 3.2 μs per evaluation. |
Use Scenario: Validating FPGA configuration bitstream integrity by NAND-ing eight CRC check bits before releasing reset to peripheral ICs. IC Role / Device Role / Timing Role: Combinational logic gate performing final pass/fail decision; output drives synchronous reset release. Use Value: Provides sub-4 ns decision latency - faster than FPGA fabric-based logic, ensuring deterministic boot timing. |
| Automated Test Equipment (ATE) Signal Conditioning | Power Sequencer Enable Logic |
|
Use Scenario: Monitoring eight independent power rail monitors (e.g., +12 V, +5 V, +3.3 V, analog supplies) in semiconductor test handlers. IC Role / Device Role / Timing Role: NAND output goes low only when all rails are in regulation - used as global "power OK" enable. Use Value: Guarantees 100% rail validation prior to test execution; Schmitt inputs prevent false trips from supply ripple. |
Use Scenario: Enabling downstream DC-DC converters only after primary 5 V rail stabilizes and eight auxiliary enable signals are asserted. IC Role / Device Role / Timing Role: Final-stage logic gate in multi-rail power-up sequence; output controls high-side MOSFET gate driver. Use Value: Ensures strict sequencing compliance (e.g., MIL-STD-704); eliminates risk of backfeed or latch-up during ramp-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHC30BQ,115 | CMOS-level inputs (VIH = 3.85 V min), wider VCC range (2–5.5 V), slower tpd (5.0 ns typ @ 3 V) | Suitable for mixed-voltage 3.3 V/5 V systems; not TTL-compatible | Select when interfacing with 3.3 V microcontrollers or battery-powered logic; avoid in pure TTL environments. |
| SN74LVX30PW | Lower VCC range (2–3.6 V), higher ICC (max 20 μA), no Schmitt inputs, SOIC-14 only | Limited to 3.3 V domains; lacks noise immunity for industrial wiring | Choose for cost-sensitive 3.3 V consumer electronics; reject for noisy or 5 V legacy systems. |
Compared with 74AHC30BQ,115 and SN74LVX30PW, the 74AHCT30BQ,115 uniquely combines TTL-level compatibility, Schmitt-trigger noise immunity, and thermally enhanced QFN packaging - making it the sole option for robust 5 V industrial logic aggregation where input signal integrity and board space are constrained.
Availability
74AHCT30BQ,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, FPGA configuration validation, automated test equipment signal conditioning, and power sequencer enable logic requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT30BQ,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 leading supplier of high-performance analog and logic ICs, founded in 2017 as a spin-off from NXP Semiconductors, with manufacturing headquartered in Nijmegen, Netherlands.
The 74AHCT series targets industrial and automotive-adjacent applications requiring TTL-compatible logic with enhanced ESD robustness and extended temperature operation - specifically designed for noise-prone control systems where legacy interface compatibility is non-negotiable.
FAQ
Is the 74AHCT30BQ,115 pin-compatible with 74LS30 or 74F30?
Yes - it is explicitly designed as a pin-compatible replacement for Low-Power Schottky TTL 8-input NAND gates (74LS30, 74F30) in SO14, TSSOP14, and DHVQFN14 packages. All 14 terminals map identically, including VCC (14), GND (7), inputs A–H, output Y, and n.c. pins. No PCB redesign is needed for drop-in substitution.
Can the 74AHCT30BQ,115 operate at 3.3 V supply?
No - the 74AHCT30BQ,115 is specified only for 4.5 V to 5.5 V operation. Its TTL-level input thresholds (VIH = 2.0 V min) are calibrated for 5 V systems; at 3.3 V, VIH exceeds 60% of VCC, risking unreliable high-level detection. Use 74AHC30BQ,115 instead for 3.3 V applications.
What is the function of the exposed thermal pad on the DHVQFN14 package?
The exposed pad (terminal 1 index area) is internally connected to GND and must be soldered to a dedicated GND copper pour on the PCB. It reduces thermal resistance by ~35 K/W and improves mechanical stability. Leaving it unconnected degrades power handling and may cause timing skew due to localized heating.
Are the n.c. pins (9, 10, 13) safe to tie to GND or VCC?
No - pins 9, 10, and 13 are internally unconnected and must remain floating. Connecting them to GND or VCC violates the Absolute Maximum Ratings and may induce latch-up or increased leakage current. PCB layout must omit traces, vias, or solder mask openings for these terminals.
74AHCT30BQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 14-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NAND Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 8
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 8.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74AHCT30BQ,115 FAQ
1.How can I place an order for 74AHCT30BQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT30BQ,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 74AHCT30BQ,115 reliable?
The price and inventory of 74AHCT30BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT30BQ,115 is usually 5 days.
3.What payment methods are accepted for 74AHCT30BQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT30BQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT30BQ,115?
74AHCT30BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT30BQ,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 74AHCT30BQ,115?
For technical support, including 74AHCT30BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT30BQ,115 requirements.
6.How does Aetrix verify that 74AHCT30BQ,115 is sourced from the original manufacturer or authorized distributors?
All 74AHCT30BQ,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 74AHCT30BQ,115 meets industry standards.
7.What is the process for return or replacement of 74AHCT30BQ,115?
All 74AHCT30BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT30BQ,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 74AHCT30BQ,115 part is unused and in its original packaging.
Return procedure for 74AHCT30BQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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