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onsemi MC74ACT08N
- Part No.:
- MC74ACT08N
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC74ACT08N.pdf
- Description:
- IC GATE AND 4CH 2-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,206
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Product details
Overview
MC74ACT08N from onsemi is a quad 2-input AND gate in a 14-pin SOIC package, designed for TTL-compatible logic interfacing at 4.5–5.5 V supply. It delivers ±24 mA output drive, supports −40°C to +85°C operation, and features AEC-Q100 qualification for automotive control logic applications.
For engineers reviewing the MC74ACT08N datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, SOIC-14 terminal mapping, automotive-grade reliability data, and direct alternatives with documented functional alignment and voltage-level differences.
Technical Context
This device implements four independent AND gates using high-performance silicon-gate CMOS technology. Each gate accepts TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) and drives CMOS loads with rail-to-rail output swing.
Propagation delay is guaranteed ≤10.0 ns (tPLH/tPHL) at 5.0 V/50 pF across temperature, with dynamic output current capability of ±75 mA under transient load conditions. Input capacitance is 4.5 pF, and quiescent ICC is ≤40 µA at 5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate - enables parallel Boolean conjunction of four signal pairs |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5 V TTL/CMOS system rails with ±5% tolerance |
| Output Drive | ±24 mA - sufficient to directly drive multiple 74-series inputs or small LEDs without buffering |
| Propagation Delay | ≤10.0 ns at 5 V/50 pF - ensures timing compliance in sub-100 MHz synchronous logic paths |
| Input Compatibility | TTL-compatible - accepts standard 0.8 V/2.0 V logic thresholds, eliminating level-shifter requirements |
| Operating Temperature | −40°C to +85°C - qualified for under-hood automotive and industrial control environments |
| ESD Rating | >2000 V HBM - provides robust handling during PCB assembly and field service |
Pinout & Package
MC74ACT08N is supplied in a 14-lead SOIC package (Case 751A), 8.75 mm × 4.00 mm footprint, 1.75 mm height, with 1.27 mm pitch. Pin 1 is marked by notch or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | Input A/B per gate | Eight total inputs - two per AND gate (Gates 1–4); no internal connection sharing |
| 3, 6, 10, 11 | Output Y per gate | Four independent open-drain-capable outputs - each sourced/sunk via push-pull CMOS stage |
| 7 | GND | Ground reference for all logic and power domains - must be low-impedance return path |
| 14 | VCC | Positive supply input - decoupling capacitor (0.1 µF) required within 10 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Validated for automotive electronics per stress test requirements - supports PPAP documentation |
| Pb-Free Construction | RoHS-compliant lead finish - compatible with lead-free reflow profiles (peak 260°C) |
| High Noise Immunity | Input hysteresis not present, but VIH/VIL margins (2.0 V/0.8 V @ 5 V) provide >1.2 V noise margin |
| Low Quiescent Current | ICC ≤ 40 µA at 5.5 V - enables use in battery-backed or always-on monitoring circuits |
| Dynamic Output Strength | IOLD/IOHD ≥ ±75 mA - sustains fast edge rates into capacitive loads up to 50 pF |
Applications
| Automotive Body Control Module | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Combining door lock status and ignition key presence signals before enabling starter relay activation. IC Role / Device Role / Timing Role: Logic gating function - performs real-time AND of two safety-critical inputs with <10 ns propagation delay. Use Value: Enables fail-safe interlock without microcontroller intervention; AEC-Q100 rating ensures reliability over 15-year vehicle lifetime. |
Use Scenario: Validating dual-channel sensor agreement (e.g., temperature + pressure) before triggering emergency shutdown. IC Role / Device Role / Timing Role: Deterministic combinational logic element - provides cycle-accurate boolean output with no internal state or clock dependency. Use Value: Eliminates software polling latency; ±24 mA drive directly interfaces with optocoupler inputs in isolated I/O modules. |
| Medical Infusion Pump Safety Logic | Consumer Appliance Door Interlock |
Use Scenario: Enabling motor driver only when both occlusion sensor and air-in-line detector report clear conditions. IC Role / Device Role / Timing Role: Hardware-level safety gate - operates independently of firmware, meeting IEC 62304 Class B requirements. Use Value: Provides deterministic response (<10 ns) to fault conditions; latch-up immunity (>100 mA) prevents single-event failure modes. |
Use Scenario: Preventing microwave oven magnetron activation unless both door switch and interlock monitor are closed. IC Role / Device Role / Timing Role: Electromechanical interface conditioner - converts mechanical switch bounce into clean digital enable signal. Use Value: TTL-compatible inputs tolerate switch contact resistance up to 1 kΩ; SOIC package allows compact placement near front-panel connectors. |
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 |
|---|---|---|---|
| SN74ACT08DR | Identical logic function, same 4.5–5.5 V range and ±24 mA drive; TI's version uses different wafer process and thermal resistance (JA = 120°C/W vs. onsemi's 116°C/W). | Qualified to AEC-Q100 Grade 2 (−40°C to +105°C) - broader temp range than MC74ACT08N's Grade 3 (−40°C to +85°C). | Select SN74ACT08DR for extended temperature operation where ambient exceeds 85°C. |
| 74VHC08M | Lower supply range (2.0–5.5 V); output drive reduced to ±8 mA; propagation delay higher (max 11.5 ns at 5 V). | Not AEC-Q100 qualified; intended for commercial/industrial use only - lacks automotive traceability and PPAP support. | Choose 74VHC08M only for cost-sensitive non-automotive designs where 5 V rail stability and drive strength are less critical. |
Compared with MC74ACT08N, SN74ACT08DR offers wider temperature coverage but requires validation of thermal derating in high-power-density layouts, while 74VHC08M trades automotive qualification and drive strength for lower static power and broader VCC flexibility - making it unsuitable for safety-critical or high-noise environments.
Availability
MC74ACT08N is available at Aetrix Electronics and suitable for automotive body control, industrial PLC input conditioning, medical safety interlocks, and consumer appliance door interlocks requiring stable component supply and long-term lifecycle support.
Supply support for MC74ACT08N 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 and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74ACT08N belongs to onsemi's 74ACT logic family, engineered specifically for interoperability with legacy TTL systems while delivering CMOS power efficiency and speed - targeting automotive subsystems and ruggedized industrial controls.
FAQ
What is the maximum operating supply voltage for MC74ACT08N?
The MC74ACT08N has an absolute maximum DC supply voltage (VCC) of +6.5 V, but its recommended operating range is strictly 4.5 V to 5.5 V. Operation outside this window may cause undefined logic behavior or accelerated parametric drift. The MC74ACT08N is not rated for 3.3 V operation - use MC74AC08 for that voltage range.
Does MC74ACT08N support mixed-voltage interfacing between 5 V and 3.3 V systems?
No, MC74ACT08N does not support reliable mixed-voltage interfacing. Its TTL-compatible inputs require VIH ≥ 2.0 V and VIL ≤ 0.8 V at 4.5–5.5 V VCC, and its outputs swing rail-to-rail. Direct connection to 3.3 V logic risks overvoltage damage to downstream receivers. Level translation circuitry is required for safe 5 V ↔ 3.3 V signal coupling with MC74ACT08N.
Is MC74ACT08N pin-compatible with MC74AC08?
Yes, MC74ACT08N is pin-compatible with MC74AC08 in the same SOIC-14 package. Both share identical pinout, footprint, and terminal functions. However, MC74ACT08N uses TTL-compatible inputs (VIH = 2.0 V), whereas MC74AC08 uses CMOS-compatible inputs (VIH = 3.15 V at 5 V), so substitution requires verification of upstream driver compatibility.
What packaging options are available for MC74ACT08N?
MC74ACT08N is offered exclusively in the SOIC-14 package (Case 751A), Pb-free, with markings "ACT08" and date code per JEDEC standards. TSSOP-14 variants exist for the MC74ACT08 family (e.g., MC74ACT08DTR2G), but the "N" suffix specifically denotes the SOIC-14 rail-packaged version - no DIP, PDIP, or QFN variants are available for MC74ACT08N.
How does the AEC-Q100 qualification of MC74ACT08N impact its use in non-automotive applications?
The AEC-Q100 qualification of MC74ACT08N confirms rigorous testing for temperature cycling, humidity, ESD, and latch-up - providing enhanced reliability margins even in non-automotive contexts. Engineers deploying MC74ACT08N in industrial or medical equipment benefit from proven robustness against thermal stress and electrical transients, though full PPAP documentation applies only to automotive programs.
MC74ACT08N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ACT
- 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:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 9ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC74ACT08N FAQ
1.How can I place an order for MC74ACT08N through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74ACT08N 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 MC74ACT08N reliable?
The price and inventory of MC74ACT08N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74ACT08N is usually 5 days.
3.What payment methods are accepted for MC74ACT08N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74ACT08N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74ACT08N?
MC74ACT08N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74ACT08N 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 MC74ACT08N?
For technical support, including MC74ACT08N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74ACT08N requirements.
6.How does Aetrix verify that MC74ACT08N is sourced from the original manufacturer or authorized distributors?
All MC74ACT08N 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 MC74ACT08N meets industry standards.
7.What is the process for return or replacement of MC74ACT08N?
All MC74ACT08N units undergo pre-shipment inspection (PSI). If there is an issue with MC74ACT08N, 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 MC74ACT08N part is unused and in its original packaging.
Return procedure for MC74ACT08N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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