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onsemi MC74HC30ADG
- Part No.:
- MC74HC30ADG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74HC30ADG.pdf
- Description:
- IC GATE NAND 1CH 8-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,661
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Product details
Overview
MC74HC30ADG from onsemi is an 8-input NAND gate in high-performance silicon-gate CMOS technology, pin-compatible with LS30 TTL logic. It operates from 2 V to 6 V, delivers 10 LSTTL load drive capability, and features low input current (±1 µA) and high noise immunity. It is used in digital logic interfacing, address decoding, and control signal conditioning in industrial and embedded systems.
For engineers reviewing the MC74HC30ADG datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range (2–6 V), propagation delay (30 ns at 6 V), output drive strength (±25 mA), and compatibility with CMOS/NMOS/TTL loads - all critical for mixed-logic-level system integration.
Technical Context
The MC74HC30ADG implements a single 8-input NAND function (Y = A·B·C·D·E·F·G·H) using standard CMOS transmission gates and inverters. Its inputs accept both CMOS-level signals directly and LSTTL-level signals when pulled up externally, enabling seamless interface across logic families.
It supports full-rail operation from VCC = 2.0 V to 6.0 V, with guaranteed VOH ≥ 5.9 V and VOL ≤ 0.1 V at VCC = 6.0 V and |IOUT| = 20 µA. Propagation delays are specified across temperature (–55°C to +125°C) and voltage, ensuring deterministic timing in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 8-input NAND gate (Y = ABCDEFGH) |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct use with 3.3 V and 5 V systems without level shifters |
| Propagation Delay | 30 ns max at VCC = 6.0 V - ensures sub-33 MHz operation in synchronous logic paths |
| Output Drive | ±25 mA per pin - drives 10 LSTTL loads or fan-out to multiple CMOS inputs |
| Input Leakage Current | ±1.0 µA max at VCC = 6.0 V - minimizes static power and prevents unintended logic transitions |
| Operating Temperature | –55°C to +125°C - qualified for automotive under-hood and industrial control applications |
| ESD Rating | >2000 V HBM - provides robust handling during board assembly and field service |
Pinout & Package
MC74HC30ADG is supplied in SOIC-14 (Case 751A) package, 8.75 mm × 3.90 mm × 1.75 mm body, with 1.27 mm pitch and Pb-free finish (G suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 11, 12 | Inputs A–H | Eight independent logic inputs accepting CMOS- or LSTTL-compatible signals |
| 7 | GND | Ground reference for all internal circuitry and I/O; must be low-impedance |
| 8 | Output Y | Active-low NAND output; sinks or sources up to ±25 mA |
| 9, 10, 13 | No Connection | Internally unconnected; must remain floating or tied to GND/VCC only if required by PCB layout |
| 14 | VCC | Positive supply rail; bypassing with 0.1 µF ceramic capacitor near pin is mandatory |
Key Features
| Feature | Design Value |
|---|---|
| CMOS/TTL interoperability | Direct interface to CMOS, NMOS, and LSTTL without external level-shifting components |
| Wide supply range | 2.0–6.0 V operation supports legacy 5 V and modern 3.3 V/2.5 V logic domains |
| High noise immunity | Typical noise margin >40% of VCC due to CMOS threshold symmetry and hysteresis suppression |
| Pb-free & RoHS compliance | Meets EU RoHS Directive 2011/65/EU and halogen-free/BFR-free requirements |
| Industrial temperature grade | Specified from –55°C to +125°C - suitable for extended-temperature industrial controllers |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
|
Use Scenario: Combining eight sensor status signals (e.g., door open, seatbelt, ignition, brake, etc.) into a single fault-enable line for safety logic. IC Role / Device Role / Timing Role: Active-low NAND gate performing real-time combinatorial logic with sub-35 ns propagation delay. Use Value: Reduces BOM count versus discrete gate arrays while maintaining deterministic timing and ESD-hardened I/O. |
Use Scenario: Enabling/disabling subsystem power rails based on simultaneous presence of ignition-on, CAN bus activity, and valid battery voltage. IC Role / Device Role / Timing Role: Critical enable logic block with guaranteed operation at 125°C ambient and 6 V supply. Use Value: Eliminates need for custom ASIC or FPGA-based glue logic in cost-sensitive ECUs. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
|
Use Scenario: Validating concurrent readiness signals from multiple analog front-end channels before initiating ADC sampling sequence. IC Role / Device Role / Timing Role: Synchronization gate ensuring all subsystems meet timing setup before clock edge. Use Value: Provides deterministic, low-jitter enable assertion with no software overhead or microcontroller latency. |
Use Scenario: Generating strobe pulses for digital pattern generators by combining trigger conditions from multiple input sources. IC Role / Device Role / Timing Role: High-speed logic combiner with 30 ns max delay at 6 V, supporting >30 MHz test clock rates. Use Value: Enables precise multi-source trigger qualification without adding propagation skew from cascaded gates. |
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 |
|---|---|---|---|
| SN74HC30DR | Same logic function and pinout; TI version rated for 2–6 V, but max operating temperature limited to +85°C (vs. +125°C for MC74HC30ADG) | Suitable for commercial-grade instrumentation but not under-hood automotive or extended-temp industrial use | Select SN74HC30DR only if ambient temperature stays below 85°C and RoHS-6 compliance is sufficient |
| 74VHC30M | Pin-compatible 8-input NAND; higher speed (tPD = 21 ns @ 5 V), but narrower supply range (2–5.5 V) and lower output drive (±8 mA) | Better for high-frequency clock gating in 3.3 V systems, but insufficient for driving LSTTL loads or 5 V backplanes | Choose 74VHC30M when speed >35 MHz is required and load is exclusively CMOS, not TTL |
Compared with SN74HC30DR and 74VHC30M, the MC74HC30ADG uniquely combines industrial temperature range (–55°C to +125°C), full 2–6 V operation, and 10-LSTTL drive strength - making it the only option qualified for high-reliability, mixed-voltage, thermally demanding applications.
Availability
MC74HC30ADG is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical diagnostic equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for MC74HC30ADG 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering power management, analog, sensors, and logic solutions for automotive, industrial, and cloud infrastructure markets.
The MC74HC30ADG belongs to the HC-series high-speed CMOS logic family, designed specifically for drop-in replacement of TTL devices while delivering lower power, wider voltage range, and improved noise immunity in industrial and automotive control systems.
FAQ
What is the maximum supply voltage rating for the MC74HC30ADG?
The MC74HC30ADG has an absolute maximum DC supply voltage (VCC) of +6.5 V, but its recommended operating range is 2.0 V to 6.0 V. Operation above 6.0 V risks exceeding internal oxide breakdown limits and is not guaranteed for functionality or reliability. The MC74HC30ADG must never be operated at 6.5 V continuously - sustained use at 6.0 V is the design limit.
Does the MC74HC30ADG require pull-up resistors on its inputs when interfacing with LSTTL outputs?
Yes - the MC74HC30ADG inputs are CMOS-compatible and have high impedance, so they require external pull-up resistors (typically 1–10 kΩ to VCC) when driven by open-collector or current-sinking LSTTL outputs. Without pull-ups, LSTTL low-state signals may not register reliably due to leakage-induced floating thresholds. The MC74HC30ADG datasheet explicitly states this requirement for LSTTL compatibility.
Are pins 9, 10, and 13 on the MC74HC30ADG internally connected or should they be left unconnected?
Pins 9, 10, and 13 on the MC74HC30ADG are No Connection (NC) terminals - they are not bonded internally and must remain unconnected on the PCB. The MC74HC30ADG datasheet confirms these pins serve no electrical function; routing traces to them or tying them to VCC/GND introduces unnecessary parasitic capacitance and potential EMI coupling without benefit.
Can the MC74HC30ADG drive a 50 Ω transmission line directly?
No - the MC74HC30ADG is not designed for 50 Ω line driving. Its output structure supports ±25 mA DC drive into resistive loads but lacks controlled slew rate or impedance matching for RF signaling. Driving a 50 Ω line would cause excessive current draw (>100 mA at 5 V), violating absolute maximum ratings and risking latch-up. For such applications, the MC74HC30ADG must interface through a dedicated line driver or buffer IC.
Is the MC74HC30ADG pinout identical to the obsolete 74LS30?
Yes - the MC74HC30ADG is explicitly designed as a pinout- and function-compatible CMOS upgrade to the 74LS30 TTL device. Pin assignments for inputs (A–H), output (Y), VCC (pin 14), and GND (pin 7) match exactly, and NC pins (9, 10, 13) align. This allows direct PCB replacement without layout changes, provided supply voltage and decoupling meet CMOS requirements.
MC74HC30ADG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 8
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.5V ~ 1.8V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 30ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74HC30ADG FAQ
1.How can I place an order for MC74HC30ADG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74HC30ADG 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 MC74HC30ADG reliable?
The price and inventory of MC74HC30ADG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC30ADG is usually 5 days.
3.What payment methods are accepted for MC74HC30ADG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC30ADG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74HC30ADG?
MC74HC30ADG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74HC30ADG 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 MC74HC30ADG?
For technical support, including MC74HC30ADG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC30ADG requirements.
6.How does Aetrix verify that MC74HC30ADG is sourced from the original manufacturer or authorized distributors?
All MC74HC30ADG 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 MC74HC30ADG meets industry standards.
7.What is the process for return or replacement of MC74HC30ADG?
All MC74HC30ADG units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC30ADG, 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 MC74HC30ADG part is unused and in its original packaging.
Return procedure for MC74HC30ADG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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