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Nexperia USA Inc. 74AHCT30D,118
- Part No.:
- 74AHCT30D,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHCT30D,118.pdf
- Description:
- IC GATE NAND 1CH 8-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,479
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Product details
Overview
74AHCT30D,118 from Nexperia is an 8-input NAND gate in SO14 package, designed for TTL-level input compatibility and high-speed logic interfacing in industrial control and digital signal routing. It operates from 4.5 V to 5.5 V, delivers propagation delay as low as 3.3 ns (CL = 15 pF), supports –40 °C to +125 °C ambient range, and features Schmitt-trigger inputs for noise immunity.
For engineers reviewing the 74AHCT30D,118 datasheet, 74AHCT30D,118 pinout, 74AHCT30D,118 application, or 74AHCT30D,118 equivalent, this device serves as a robust, temperature-stable logic combiner in bus arbitration, enable gating, and multi-signal validation circuits where TTL-compatible thresholds and low dynamic power are required.
Technical Context
The 74AHCT30D,118 implements a single 8-input NAND function using Si-gate CMOS technology with TTL-level input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V). Its Schmitt-trigger inputs provide hysteresis (typ. 0.3 V) for reliable switching in noisy environments.
It is JEDEC 7-A compliant, pin-compatible with LSTTL, and specified for full industrial and extended temperature operation (–40 °C to +125 °C). Propagation delay is measured between any of the eight inputs (A–H) and the output (Y), with VM = 1.5 V for inputs and 0.5 × VCC for outputs per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 8-input NAND gate - performs Y = NOT(A·B·C·D·E·F·G·H); used for multi-signal enable/disable and bus contention resolution. |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures interoperability with standard 5 V TTL and mixed-voltage systems without level shifting. |
| Propagation Delay (tpd) | 3.3 ns (typ.) at VCC = 5.0 V, CL = 15 pF - enables sub-100 MHz system clock domain synchronization and fast control path response. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - guarantees reliable recognition of standard TTL logic levels across temperature and voltage variation. |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to drive 10 LSTTL loads or multiple CMOS inputs without external buffering. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets IEC/ANSI/JEDEC Class 2 and Class C3 requirements for robust handling in automated assembly and field deployment. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLC backplanes, and high-reliability embedded controllers. |
Pinout & Package
74AHCT30D,118 is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads, 3.9 mm body width, and gull-wing leads. Pin 1 is located at the lower-left corner below the marking "74AHCT30D".
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data input | First of eight logic inputs; accepts TTL-compatible voltage levels; internally connected to NAND gate input stage. |
| 2 (B) | Data input | Second logic input; identical electrical characteristics to Pin 1; supports parallel multi-signal conditioning. |
| 3 (C) | Data input | Third logic input; Schmitt-triggered for noise rejection; no external pull-up/pull-down required in open-wire applications. |
| 4 (D) | Data input | Fourth logic input; electrically isolated from other inputs until internal NAND evaluation; supports independent signal sources. |
| 5 (E) | Data input | Fifth logic input; shares same VIH/VIL specs; enables compact implementation of 8-bit bus-wide logic decisions. |
| 6 (F) | Data input | Sixth logic input; rated for VI up to 7.0 V absolute max - allows safe hot-swap or mixed-rail probing during debug. |
| 7 (GND) | Ground reference | 0 V return path for all internal circuitry; must be low-impedance to maintain noise margin and timing integrity. |
| 8 (Y) | Output | Active-low NAND result; drives CMOS/TTL loads directly; VOH ≥ 3.94 V / VOL ≤ 0.36 V at 8 mA ensures clean logic transitions. |
| 9, 10, 13 (n.c.) | No connect | Internally unconnected; must remain floating - no routing, termination, or grounding permitted per datasheet guidance. |
| 11 (G) | Data input | Seventh logic input; identical timing and voltage specs; enables full 8-input functionality without external fan-in expansion. |
| 12 (H) | Data input | Eighth and final logic input; completes the 8-input NAND function; no additional external logic needed for octal condition evaluation. |
| 14 (VCC) | Supply voltage | +4.5 V to +5.5 V power rail; decoupling capacitor (100 nF) recommended within 5 mm of this pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply - eliminates need for level translators when interfacing with legacy 74LS or microcontroller GPIOs. |
| Schmitt-trigger inputs | Hysteresis ≈ 0.3 V typical - suppresses chatter on slow-rising or noisy control lines such as mechanical switch inputs or sensor outputs. |
| High-speed propagation | 3.3 ns typical tpd (CL = 15 pF) - supports real-time logic decisions in data acquisition triggers, interrupt masking, and state-machine control paths. |
| Extended temperature range | –40 °C to +125 °C operation - validated for use in motor drives, power converters, and outdoor telecom equipment without derating. |
| Robust ESD protection | HBM > 2000 V, CDM > 1000 V - reduces risk of assembly-line damage and field failures in unshielded industrial enclosures. |
Applications
| Industrial Bus Arbitration | Digital Power Sequencing |
|---|---|
|
Use Scenario: Coordinating access to shared RS-485 or CAN transceiver buses among multiple microcontrollers in a distributed control network. IC Role / Device Role / Timing Role: 8-input NAND acts as a hardware priority encoder enable gate - only one controller's request line may be active while others are held low. Use Value: Prevents bus collisions without software overhead; deterministic response time (<8 ns worst-case) ensures sub-microsecond arbitration latency. |
Use Scenario: Enabling DC-DC converter rails in strict sequence (e.g., 12 V → 5 V → 3.3 V → 1.2 V) based on upstream power-good signals. IC Role / Device Role / Timing Role: NAND combines eight individual PG# signals into a single global "all-rails-ready" flag for downstream logic or FPGA configuration. Use Value: Eliminates need for discrete diode-OR or microcontroller polling; supports fail-safe startup with guaranteed monotonic sequencing. |
| Programmable Logic Interface | Test Equipment Signal Gating |
|
Use Scenario: Configuring FPGA I/O banks or CPLD function blocks via DIP-switch or jumper-based mode selection in lab-grade instrumentation. IC Role / Device Role / Timing Role: Converts 8-bit hardware configuration bits into a single active-low enable for peripheral interface logic or clock gating. Use Value: Reduces PCB footprint vs. discrete gates; Schmitt inputs tolerate mechanical switch bounce, enabling direct DIP-switch connection. |
Use Scenario: Isolating stimulus signals in automated test equipment (ATE) during calibration cycles to prevent interference with measurement circuitry. IC Role / Device Role / Timing Role: Gates eight independent test channel triggers through a common safety interlock signal before releasing stimulus pulses. Use Value: Ensures zero unintended output during setup; propagation delay consistency (<0.5 ns variation) maintains channel-to-channel timing alignment. |
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 |
|---|---|---|---|
| 74AHC30D,118 | CMOS-level inputs (VIH = 3.85 V @ VCC = 5.5 V); wider supply range (2.0–5.5 V); slightly higher tpd (3.6 ns typ. @ 5 V) | Better suited for mixed-voltage systems (e.g., 3.3 V logic controlling 5 V peripherals) and battery-powered designs with variable VCC | Select when interfacing with CMOS microcontrollers or operating below 4.5 V; verify input threshold compatibility with driving source. |
| SN74LVX30DR | TI LVX series; 2.7–3.6 V only; VIH = 2.0 V min; tpd = 5.2 ns @ 3.3 V, CL = 50 pF; lower ICC (1 μA max) | Optimized for low-voltage portable electronics; not suitable for 5 V systems or industrial temperature range | Choose for ultra-low-power 3.3 V applications where speed < 50 MHz suffices and extended temperature is not required. |
Compared with 74AHC30D,118 and SN74LVX30DR, the 74AHCT30D,118 uniquely balances TTL compatibility, wide temperature support, and sub-4 ns speed at 5 V - making it the only option qualified for both industrial control and legacy system upgrades without redesign.
Availability
74AHCT30D,118 is available at Aetrix Electronics and suitable for industrial bus arbitration, digital power sequencing, programmable logic interface, and test equipment signal gating requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT30D,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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with global R&D and manufacturing facilities focused on reliability and energy efficiency.
The 74AHCT30D,118 belongs to Nexperia's advanced logic family, engineered for seamless integration into industrial, automotive, and communications systems where TTL compatibility, thermal resilience, and consistent timing are critical.
FAQ
What is the maximum input voltage rating for 74AHCT30D,118?
The absolute maximum input voltage is –0.5 V to +7.0 V referenced to GND, per Table 5 of the datasheet. This exceeds VCC by up to 1.5 V, allowing safe probing or transient tolerance in mixed-rail environments - but sustained operation above VCC + 0.5 V requires current limiting to avoid exceeding ±20 mA clamping current limits.
Can unused inputs be left floating?
No - all eight inputs (A–H) must be actively driven HIGH or LOW. Floating inputs cause increased ICC, unpredictable output states, and potential oscillation due to CMOS input stage metastability. Tie unused inputs to VCC or GND via ≤1 kΩ resistors; Schmitt-trigger action does not eliminate this requirement.
Is 74AHCT30D,118 qualified for automotive applications?
No - this part is not AEC-Q100 qualified. While it operates from –40 °C to +125 °C, it lacks automotive-specific stress testing, failure analysis, and traceability documentation. For automotive use, specify the pin-compatible 74AHCT30DP,118 (Q100-compliant variant) or consult Nexperia's automotive logic portfolio.
How does the Schmitt-trigger input affect timing behavior?
Schmitt-trigger inputs introduce fixed hysteresis (~0.3 V), which improves noise immunity but adds negligible delay (<0.2 ns) versus standard CMOS inputs. The propagation delay spec (3.3 ns typ.) already includes this effect; no derating is needed for rise/fall time - input transition rates down to 20 ns/V are fully supported per Table 6.
74AHCT30D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- 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-SO
74AHCT30D,118 FAQ
1.How can I place an order for 74AHCT30D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT30D,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 74AHCT30D,118 reliable?
The price and inventory of 74AHCT30D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT30D,118 is usually 5 days.
3.What payment methods are accepted for 74AHCT30D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT30D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT30D,118?
74AHCT30D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT30D,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 74AHCT30D,118?
For technical support, including 74AHCT30D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT30D,118 requirements.
6.How does Aetrix verify that 74AHCT30D,118 is sourced from the original manufacturer or authorized distributors?
All 74AHCT30D,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 74AHCT30D,118 meets industry standards.
7.What is the process for return or replacement of 74AHCT30D,118?
All 74AHCT30D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT30D,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 74AHCT30D,118 part is unused and in its original packaging.
Return procedure for 74AHCT30D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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