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onsemi MC74AC08NG
- Part No.:
- MC74AC08NG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC74AC08NG.pdf
- Description:
- IC GATE AND 4CH 2-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,928
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Product details
Overview
MC74AC08NG from onsemi is a quad 2-input AND gate in high-performance silicon-gate CMOS technology, operating at 2.0–6.0 V supply voltage, delivering ±24 mA output drive, with propagation delay as low as 5.5 ns at 5.0 V and 50 pF load, used in digital logic control, address decoding, and enable gating in industrial and consumer systems.
For engineers reviewing the MC74AC08NG datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, SOIC-14 package details, functional role in combinational logic networks, and validated alternative options for design continuity and sourcing flexibility.
Technical Context
The MC74AC08NG implements four independent 2-input AND gates using advanced CMOS process technology, supporting rail-to-rail input voltage range (0 to VCC) and TTL-compatible output swing. It operates across −40°C to +85°C ambient temperature with guaranteed VIH/VIL thresholds at 3.0 V, 4.5 V, and 5.5 V supply levels.
Its AC performance is characterized at CL = 50 pF, with tPLH/tPHL specified down to 5.5 ns (typical) at 5.0 V, and DC output capability includes VOH ≥ 4.4 V and VOL ≤ 0.44 V at IOL = 24 mA and IOH = −24 mA - enabling direct interface with 5 V TTL and CMOS loads without level shifting.
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 |
| Output Drive | ±24 mA - sufficient to directly drive multiple standard TTL inputs or small capacitive loads |
| Propagation Delay | 7.5 ns max at 5.0 V/50 pF - enables reliable timing in sub-100 MHz synchronous logic paths |
| Input Thresholds | VIH = 2.1 V min, VIL = 1.35 V max at VCC = 4.5 V - ensures noise margin >0.7 V under typical conditions |
| Quiescent ICC | 40 µA max at VCC = 5.5 V - enables low-static-power operation in always-on subsystems |
| ESD Rating | >2000 V HBM - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
MC74AC08NG is supplied in a Pb-free SOIC-14 (Case 751A) surface-mount package measuring 8.75 mm × 3.90 mm × 1.75 mm, with 1.27 mm pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | Input A/B of AND gates | Eight total inputs across four gates - each pair (e.g., pins 1&2 → pin 3 output) forms one AND function |
| 3, 6, 10, 11 | Output Y of AND gates | Four buffered logic outputs - compatible with 5 V TTL fan-out of ≥10 and CMOS loads |
| 7 | GND | Ground reference for all logic and power domains - must be low-impedance connection |
| 14 | VCC | Positive supply rail - decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| High-speed CMOS architecture | Delivers 5.5 ns typical propagation delay at 5 V - reduces combinatorial path latency in control logic |
| Pb-free SOIC-14 packaging | Meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity Level 1 - suitable for standard reflow |
| Rail-to-rail input compatibility | Accepts 0 V to VCC input voltages - eliminates need for external biasing in mixed-supply environments |
| Low dynamic power consumption | CPD = 20 pF - limits switching current and heat generation in high-frequency toggle applications |
| Industrial temperature range | −40°C to +85°C operation - qualified for use in programmable logic controllers and motor drive interfaces |
Applications
| Industrial Control Logic | Consumer Device Power Sequencing |
|---|---|
Use Scenario: Enable signal arbitration in PLC backplane modules where multiple subsystems request bus access. IC Role / Device Role / Timing Role: Quad AND gate performs synchronized gating of enable signals prior to clock distribution. Use Value: Ensures only one peripheral activates per cycle via hardware-level priority encoding - no firmware overhead or timing jitter. |
Use Scenario: Coordinating power-up sequence of display, audio, and sensor subsystems in smart home hubs. IC Role / Device Role / Timing Role: Combines reset and voltage-good signals to generate controlled enable pulses for LDOs. Use Value: Prevents race conditions during cold start by enforcing strict dependency order - avoids latch-up or brownout resets. |
| Automotive Body Controller Interface | Test Equipment Signal Conditioning |
Use Scenario: Interfacing door lock actuator drivers with CAN-based command validation logic in body ECUs. IC Role / Device Role / Timing Role: AND gate validates both safety interlock status and command validity before enabling driver stage. Use Value: Adds hardware-enforced dual-check layer - meets ASIL-B functional safety decomposition requirements without software intervention. |
Use Scenario: Gating test pattern generators in automated PCB functional testers to isolate DUT stimulus paths. IC Role / Device Role / Timing Role: Enables/disables test vectors based on fixture presence detection and calibration state. Use Value: Eliminates false triggering during probe contact bounce - improves first-pass yield and reduces false-fail rate. |
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 |
|---|---|---|---|
| SN74AC08DR | Same logic function and SOIC-14 package; VIH/VIL thresholds differ slightly (VIH = 2.0 V min at 4.5 V vs. 2.1 V for MC74AC08NG) | Validated for TI's broad analog + logic ecosystem; lacks AEC-Q100 qualification | Select when sourcing from TI-authorized channels or integrating with TI microcontrollers and data converters |
| 74VHC08M | Higher VCC max (7 V), lower ICC (2 µA typ), but slower tPLH (8.5 ns max at 5 V); same pinout | Better suited for ultra-low-power standby modes; not rated for automotive temperature extremes | Prefer for battery-backed systems requiring <1 µA quiescent current in sleep states |
Compared with SN74AC08DR and 74VHC08M, the MC74AC08NG offers tighter VIH/VIL margins at mid-rail supplies and AEC-Q100 qualification - making it the preferred choice for industrial control and automotive body electronics where robustness across voltage and temperature variation is critical.
Availability
MC74AC08NG is available at Aetrix Electronics and suitable for industrial control logic, automotive body electronics, consumer power sequencing, and test equipment signal conditioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for MC74AC08NG 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, sensors, and logic ICs for automotive, industrial, and cloud infrastructure markets.
The MC74AC08NG belongs to onsemi's 74AC logic family - designed for high-speed, low-noise, and wide-supply-range operation in mission-critical digital control and interface applications.
FAQ
What is the maximum supply voltage rating for MC74AC08NG?
The MC74AC08NG has an absolute maximum DC supply voltage (VCC) rating of +6.5 V. However, its recommended operating range is 2.0 V to 6.0 V. Operating continuously above 6.0 V may degrade reliability or cause parametric shift, and exceeding 6.5 V risks permanent damage. Designers should maintain VCC within 2.0–6.0 V for full specification compliance and long-term stability in applications such as industrial control panels and automotive body modules where the MC74AC08NG is deployed.
Does MC74AC08NG support TTL-level input compatibility?
The MC74AC08NG does not guarantee TTL-compatible inputs - that feature is exclusive to the MC74ACT08 variant. The MC74AC08NG uses CMOS input thresholds (VIH = 2.1 V min at 4.5 V), whereas TTL requires VIH ≥ 2.0 V and VIL ≤ 0.8 V. While it may function with TTL outputs in many cases, designers must verify noise margins and switching thresholds in their specific layout. For guaranteed TTL interoperability, the MC74ACT08NG or SN74ACT08DR should be selected instead of the MC74AC08NG.
What is the thermal resistance (θJA) of MC74AC08NG in SOIC-14 package?
The MC74AC08NG in SOIC-14 (Case 751A) has a junction-to-ambient thermal resistance (θJA) of 116°C/W under standard JEDEC test conditions (1s² copper pad, still air). This value assumes minimal PCB copper area; actual θJA improves significantly with added thermal vias and copper pour. At 24 mA output sink/source and 5 V supply, worst-case power dissipation remains below 100 mW - keeping junction temperature safely below 150°C even at 85°C ambient, confirming suitability for enclosed industrial enclosures where the MC74AC08NG is commonly applied.
Is MC74AC08NG qualified for automotive applications?
The base MC74AC08NG is not AEC-Q100 qualified. Only variants with the "−Q" suffix (e.g., MC74AC08DR2G−Q) carry AEC-Q100 Grade 2 qualification and PPAP capability. These Q-suffix versions undergo extended temperature cycling, HTOL, and ESD stress testing per automotive standards. For non-automotive industrial or consumer use, the MC74AC08NG is fully appropriate; however, for body control modules or lighting ECUs requiring automotive qualification, the Q-suffix version must be specified - the MC74AC08NG itself does not meet those requirements.
What is the input capacitance (CIN) of MC74AC08NG?
The MC74AC08NG has a typical input capacitance (CIN) of 4.5 pF at VCC = 5.0 V, as measured per manufacturer characterization. This low value minimizes loading on upstream drivers and preserves signal edge rates in high-speed logic paths. When cascading multiple MC74AC08NG devices or driving long traces, designers should include CIN in total capacitive load calculations - especially in clock distribution or enable gating circuits where the MC74AC08NG is used to synchronize subsystem activation.
MC74AC08NG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74AC
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- AND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.9V ~ 1.65V
- Input Logic Level - High:
- 2.1V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC74AC08NG FAQ
1.How can I place an order for MC74AC08NG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74AC08NG 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 MC74AC08NG reliable?
The price and inventory of MC74AC08NG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74AC08NG is usually 5 days.
3.What payment methods are accepted for MC74AC08NG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74AC08NG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74AC08NG?
MC74AC08NG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74AC08NG 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 MC74AC08NG?
For technical support, including MC74AC08NG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74AC08NG requirements.
6.How does Aetrix verify that MC74AC08NG is sourced from the original manufacturer or authorized distributors?
All MC74AC08NG 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 MC74AC08NG meets industry standards.
7.What is the process for return or replacement of MC74AC08NG?
All MC74AC08NG units undergo pre-shipment inspection (PSI). If there is an issue with MC74AC08NG, 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 MC74AC08NG part is unused and in its original packaging.
Return procedure for MC74AC08NG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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