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onsemi MC74HC08ADR2
- Part No.:
- MC74HC08ADR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74HC08ADR2.pdf
- Description:
- IC GATE AND 4CH 2-INP 14-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,500
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Product details
Overview
MC74HC08ADR2 from onsemi is a quad 2-input AND gate in high-performance silicon-gate CMOS technology, operating across 2.0–6.0 V supply range with 10 LSTTL load drive capability and propagation delay as low as 13 ns at 6.0 V. It performs basic Boolean conjunction logic for digital control, signal gating, and enable functions in industrial control panels and embedded interface circuits.
For engineers reviewing the MC74HC08ADR2 datasheet, pinout, applications, or equivalent options, key selection considerations include supply voltage flexibility (2.0–6.0 V), guaranteed 10 LSTTL fanout, −55°C to +125°C operating temperature, and SOIC-14 packaging compatible with legacy LS08 layouts.
Technical Context
The MC74HC08ADR2 implements four independent AND gates in a single monolithic CMOS IC, with inputs compatible with standard CMOS outputs and-when pulled up-LSTTL outputs. Its architecture delivers rail-to-rail output swing and exhibits high noise immunity due to CMOS threshold design and low input leakage (±1.0 µA max).
Each gate features symmetrical propagation delays (tPLH/tPHL) and fast output transition times (tTLH/tTHL), with timing performance fully characterized from −55°C to +125°C. Input capacitance is limited to 10 pF, and quiescent supply current remains below 40 µA at 6.0 V over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate - provides four independent Boolean AND operations per package |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing and battery-powered operation |
| Propagation Delay | 13 ns max at VCC = 6.0 V - enables reliable operation in 30+ MHz clocked systems with margin |
| Output Drive | 10 LSTTL loads - ensures robust fanout without external buffering in TTL/CMOS hybrid designs |
| Operating Temperature | −55°C to +125°C - qualified for extended industrial and automotive under-hood environments |
| Input Leakage | ±1.0 µA max at 6.0 V - minimizes power loss and signal integrity impact in high-impedance nodes |
| ESD Rating | >2000 V HBM - provides baseline handling robustness during PCB assembly and rework |
Pinout & Package
MC74HC08ADR2 is housed in a 14-lead SOIC package (Case 751A), with 1.27 mm pitch, 8.55–8.75 mm body width, and 3.80–4.00 mm body length. Pin 1 is index-marked; Pin 7 is GND; Pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 input | First input of Gate 1 - must be tied to valid logic level if unused |
| 2 | B1 input | Second input of Gate 1 - forms AND function with Pin 1 |
| 3 | Y1 output | Output of Gate 1 - drives downstream logic or bus lines with 10 LSTTL load capability |
| 4 | A2 input | First input of Gate 2 - electrically isolated from other gates |
| 5 | B2 input | Second input of Gate 2 - shares no internal connection with other inputs |
| 6 | Y2 output | Output of Gate 2 - independently buffered, same timing and drive specs as Y1 |
| 7 | GND | Ground reference for all logic and power domains - requires low-impedance PCB return path |
| 8 | Y3 output | Output of Gate 3 - identical electrical behavior to Y1/Y2/Y4 |
| 9 | A3 input | First input of Gate 3 - matches A1/A2/A4 in input threshold and capacitance |
| 10 | B3 input | Second input of Gate 3 - supports same VIH/VIL specs across full VCC range |
| 11 | Y4 output | Output of Gate 4 - final gate output, fully specified for AC/DC parameters |
| 12 | A4 input | First input of Gate 4 - pin-compatible with LS08 for drop-in replacement |
| 13 | B4 input | Second input of Gate 4 - completes quad AND functionality in single SOIC footprint |
| 14 | VCC | Positive supply rail - must be decoupled locally with 0.1 µF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free, RoHS-compliant packaging | SOIC-14 with "G" suffix - meets global environmental compliance requirements without derating |
| JEDEC Std. No. 7A compliance | Guarantees interoperability with industry-standard logic families and test protocols |
| Chip complexity: 24 FETs | Enables low static power consumption (ICC ≤ 40 µA) while maintaining speed and drive strength |
| −Q suffix variant available | MC74HC08ADR2G−Q* offers AEC-Q100 qualification and PPAP support for automotive use |
| High noise immunity | CMOS input structure rejects >40% VCC noise margin - critical in noisy industrial environments |
Applications
| Industrial PLC I/O Conditioning | Automotive Body Control Module |
|---|---|
Use Scenario: Signal validation before enabling relay drivers or analog muxes in programmable logic controllers. IC Role / Device Role / Timing Role: Quad AND gate performing synchronous enable gating for 4-channel digital output banks. Use Value: Ensures only valid command + status combinations activate outputs, preventing spurious actuation under EMI or brownout conditions. | Use Scenario: Door lock/unlock arbitration logic where multiple sensors (key fob, door handle, interior switch) must concur. IC Role / Device Role / Timing Role: Logic-level AND function combining authenticated signals prior to motor driver activation. Use Value: Provides deterministic, low-latency (≤13 ns) decision logic without microcontroller intervention or firmware overhead. |
| Medical Infusion Pump Safety Interlock | Test Equipment Digital Pattern Generator |
Use Scenario: Dual-redundant start condition verification before initiating fluid delivery in Class II medical devices. IC Role / Device Role / Timing Role: Hardware-enforced AND gate ensuring both primary and secondary safety checks pass simultaneously. Use Value: Meets IEC 62304 hardware fault tolerance requirements with zero software dependency and <100 ns worst-case latency. | Use Scenario: Generating synchronized strobe and data-enable signals for high-speed memory testing fixtures. IC Role / Device Role / Timing Role: Timing combiner that gates clock-derived enable pulses with pattern validity flags. Use Value: Delivers sub-15 ns skew between four parallel enable paths, eliminating setup/hold violations in 50+ MHz test vectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC08DR | TI part with identical logic function, 2–6 V supply, and SOIC-14 package; tPLH = 15 ns @ 6 V (vs. 13 ns) | Same industrial temperature range but not AEC-Q100 qualified; lacks −Q automotive variant | Select when sourcing from TI-aligned supply chains or requiring TI-specific qualification documentation |
| 74VHC08M | ON Semiconductor's higher-speed VHC family variant: 7.5 ns max tPLH @ 5 V, lower CPD (16 pF vs. 20 pF) | Reduced propagation delay enables >100 MHz system clock domain bridging; tighter AC specs | Choose for timing-critical applications where 5–6 ns faster propagation justifies potential cost or availability trade-offs |
Compared with SN74HC08DR and 74VHC08M, the MC74HC08ADR2 offers the best balance of wide supply range (2.0–6.0 V), guaranteed industrial temperature operation, and direct LS08 pin compatibility - making it optimal for legacy redesigns and multi-rail systems where voltage flexibility and drop-in replacement are prioritized over marginal speed gains.
Availability
MC74HC08ADR2 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical device safety interlocks requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74HC08ADR2 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 specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The MC74HC08ADR2 belongs to the 74HC high-speed CMOS logic family, designed specifically to replace obsolete TTL logic with improved power efficiency, wider voltage operation, and enhanced noise immunity in industrial control and instrumentation systems.
FAQ
What is the maximum propagation delay of the MC74HC08ADR2 at 5.0 V supply?
The MC74HC08ADR2 has a maximum propagation delay of 15 ns (tPLH/tPHL) at VCC = 5.0 V and TA ≤ 125°C, as specified in the AC Characteristics table of the official onsemi datasheet. This value reflects worst-case performance across temperature and process variation, ensuring timing margin in real-world industrial designs using the MC74HC08ADR2.
Is the MC74HC08ADR2 pin-compatible with the 74LS08?
Yes, the MC74HC08ADR2 is explicitly designed to be pin-compatible with the 74LS08, as confirmed in the datasheet's first paragraph: "The MC74HC08A/MC74HCT08A is identical in pinout to the LS08." This allows direct replacement in existing LS08-based PCB layouts without modification, preserving mechanical fit and signal routing for the MC74HC08ADR2.
Does the MC74HC08ADR2 support 3.3 V logic systems?
Yes, the MC74HC08ADR2 fully supports 3.3 V operation: its recommended supply range is 2.0–6.0 V, and DC/AC specifications-including VIH (≥2.1 V), VIL (≤0.9 V), VOH (≥2.48 V), and VOL (≤0.26 V)-are guaranteed at VCC = 3.0 V. This makes the MC74HC08ADR2 suitable for mixed-voltage 3.3 V/5 V system interfacing without level shifters.
What does the "R2" in MC74HC08ADR2 signify?
The "R2" in MC74HC08ADR2 denotes tape-and-reel packaging: per onsemi's ordering information, "DR2G" indicates SOIC-14 packaged in 2500-unit tape-and-reel format. This distinguishes it from rail-packaged variants (e.g., "DG") and confirms the MC74HC08ADR2 is optimized for automated SMT assembly lines requiring reel-fed placement.
Is the MC74HC08ADR2 qualified for automotive applications?
The base MC74HC08ADR2 is not automotive-qualified, but its −Q suffix variant MC74HC08ADR2G−Q* is AEC-Q100 qualified and PPAP capable. The datasheet explicitly states "−Q Suffix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements," confirming that automotive-grade compliance applies only to Q-suffix versions-not the standard MC74HC08ADR2.
MC74HC08ADR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- AND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 1 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:
- 13ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74HC08ADR2 FAQ
1.How can I place an order for MC74HC08ADR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74HC08ADR2 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 MC74HC08ADR2 reliable?
The price and inventory of MC74HC08ADR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC08ADR2 is usually 5 days.
3.What payment methods are accepted for MC74HC08ADR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC08ADR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74HC08ADR2?
MC74HC08ADR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74HC08ADR2 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 MC74HC08ADR2?
For technical support, including MC74HC08ADR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC08ADR2 requirements.
6.How does Aetrix verify that MC74HC08ADR2 is sourced from the original manufacturer or authorized distributors?
All MC74HC08ADR2 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 MC74HC08ADR2 meets industry standards.
7.What is the process for return or replacement of MC74HC08ADR2?
All MC74HC08ADR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC08ADR2, 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 MC74HC08ADR2 part is unused and in its original packaging.
Return procedure for MC74HC08ADR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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