onsemi MC74AC08MR1
- Part No.:
- MC74AC08MR1
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74AC08MR1.pdf
- Description:
- IC GATE AND
- Quantity:
- Payment:

- Shipping:

Inventory:9,000
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Product details
Overview
MC74AC08MR1 from onsemi is a quad 2-input AND gate logic IC in EIAJ-14 (SOIC-14) package, operating at 2.0–6.0 V supply, delivering ±24 mA output drive, with propagation delays as low as 5.5 ns at 5.0 V and 50 pF load, used in digital control signal conditioning and bus interface logic.
For engineers reviewing the MC74AC08MR1 datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range (2.0–6.0 V), output drive capability (±24 mA), AC timing performance (tPLH/tPHL ≤ 8.5 ns max at 5 V), input compatibility (CMOS-level thresholds), and EIAJ-14 package footprint compatibility.
Technical Context
The MC74AC08MR1 implements four independent 2-input AND gates using advanced CMOS technology, with rail-to-rail input voltage tolerance (–0.5 V to VCC + 0.5 V) and guaranteed operation across –40°C to +85°C ambient temperature. It supports mixed-voltage system interfacing due to wide VCC range and defined VIH/VIL thresholds.
Its AC characteristics are specified at CL = 50 pF and VCC = 3.3 V or 5.0 V, with typical propagation delay of 5.5 ns (tPLH/tPHL) at 5.0 V, and input rise/fall time sensitivity of ≤25 ns/V at VCC = 5.5 V - enabling reliable timing in high-speed combinatorial logic paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate - provides four independent Boolean AND operations per device |
| Supply Voltage Range | 2.0 V to 6.0 V - supports 3.3 V and 5 V systems without level shifters |
| Output Drive | ±24 mA - sufficient to directly drive TTL loads or multiple CMOS inputs |
| Propagation Delay | ≤8.5 ns max (tPLH/tPHL, VCC = 5.0 V, CL = 50 pF) - enables use in sub-100 MHz combinatorial paths |
| Input Thresholds | VIH = 2.1 V min, VIL = 0.9 V max at VCC = 3.0 V - ensures noise margin >0.6 V in 3.3 V systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and instrumentation |
| Power Dissipation Cap | CPD = 20 pF - enables accurate dynamic power estimation in clocked logic designs |
Pinout & Package
EIAJ-14 (SOIC-14) package, 3.9 mm width, 1.27 mm pitch, surface-mount, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 11, 12 | Input A/B of AND gates | Eight total inputs across four gates; each pair (e.g., pins 1&2) feeds one AND gate |
| 3, 6, 10, 13 | Output Y of AND gates | Four buffered logic outputs; each sinks or sources up to ±24 mA |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry |
| 14 | VCC | Positive supply rail; must be decoupled locally for stable AC performance |
Key Features
| Feature | Design Value |
|---|---|
| High-Speed CMOS | Combines CMOS low power with near-BiCMOS speed: tPLH/tPHL ≤ 8.5 ns at 5 V |
| Rail-to-Rail Input Range | Accepts inputs from –0.5 V to VCC + 0.5 V - tolerates overshoot/undershoot in noisy environments |
| Wide Supply Range | Operates from 2.0 V to 6.0 V - eliminates need for separate 3.3 V/5 V logic families in mixed-supply boards |
| Output Current Capability | ±24 mA per output - drives standard TTL loads or fan-out of ≥10 74AC inputs |
| Low Quiescent Current | ICC ≤ 40 µA max - enables use in always-on logic monitoring circuits without significant standby draw |
Applications
| Industrial Control Logic | Microcontroller Peripheral Interface |
|---|---|
Use Scenario: Enabling/disabling sensor readout channels based on system state flags in PLC I/O modules. IC Role / Device Role / Timing Role: Combinatorial enable gate that synchronizes analog front-end activation with microcontroller GPIO states. Use Value: Eliminates need for discrete transistor switches; leverages ±24 mA drive to directly control analog mux enable lines. | Use Scenario: Decoding address bits to select between multiple SPI peripherals sharing a common bus. IC Role / Device Role / Timing Role: Address decode logic generating chip-select signals with sub-10 ns propagation for deterministic peripheral access. Use Value: Meets tight setup/hold timing budgets for 20+ MHz SPI clocks without added delay buffers. |
| Automotive Body Control | Test Equipment Signal Conditioning |
Use Scenario: Combining door-open and ignition-status signals to activate interior lighting only when both conditions are met. IC Role / Device Role / Timing Role: Safety-critical interlock logic performing real-time Boolean conjunction of two independent sensor inputs. Use Value: Industrial temperature rating (–40°C to +85°C) and robust input voltage tolerance ensure reliability under vehicle thermal cycling. | Use Scenario: Gating test pattern generators before injection into DUT to prevent spurious stimulus during calibration phases. IC Role / Device Role / Timing Role: Precision enable gate synchronized to system clock edges for glitch-free test signal routing. Use Value: Low CPD (20 pF) and fast, matched tPLH/tPHL minimize timing skew across parallel test channels. |
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, identical AC/DC specs, SOIC-14 package, TI marking; VCC range 2.0–6.0 V, IOH/IOL = ±24 mA | No functional difference; pinout and timing fully aligned with MC74AC08MR1 | Select when dual-sourcing or TI-aligned BOMs required |
| 74VHC08M | Higher VCC max (7.0 V), lower ICC (2.0 µA typ), but slower max speed (tPD ≤ 7.5 ns at 5 V, CL = 50 pF) | Suitable for ultra-low-power systems where <1 µA standby matters more than sub-8 ns delay | Prefer for battery-powered instrumentation where quiescent current dominates power budget |
Compared with SN74AC08DR and 74VHC08M, the MC74AC08MR1 offers identical timing and drive strength to the TI part while providing broader voltage flexibility than the VHC variant - making it optimal for industrial 5 V systems requiring proven reliability and direct drop-in replacement capability.
Availability
MC74AC08MR1 is available at Aetrix Electronics and suitable for industrial control logic, microcontroller peripheral interface, automotive body control, and test equipment signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for MC74AC08MR1 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, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The MC74AC08MR1 belongs to the 74AC logic family, designed for high-speed, low-power, mixed-voltage digital systems where robust noise immunity and wide supply range are critical.
FAQ
What is the maximum supply voltage for the MC74AC08MR1?
The MC74AC08MR1 supports a DC supply voltage range of –0.5 V to +7.0 V, with recommended operation from 2.0 V to 6.0 V. Absolute maximum VCC is +7.0 V, but sustained operation above 6.0 V may impact reliability or parametric guarantees. Always observe the Recommended Operating Conditions table in the official datasheet for MC74AC08MR1 to ensure long-term stability.
Does the MC74AC08MR1 support 3.3 V logic levels?
Yes, the MC74AC08MR1 fully supports 3.3 V operation: VIH is guaranteed ≥2.1 V and VIL ≤0.9 V at VCC = 3.0 V, providing >0.6 V noise margin. Its 2.0–6.0 V supply range and CMOS-compatible inputs make MC74AC08MR1 suitable for direct interfacing with 3.3 V microcontrollers and FPGAs without level translation.
What is the output drive capability of the MC74AC08MR1?
The MC74AC08MR1 delivers ±24 mA per output pin under recommended conditions (VCC = 4.5–5.5 V), enabling direct drive of TTL loads or fan-out to ≥10 standard 74AC inputs. This output strength is confirmed across –40°C to +85°C and is specified in the DC Characteristics table of the MC74AC08MR1 datasheet.
Is the MC74AC08MR1 pin-compatible with the MC74ACT08MR1?
No - although both share the same EIAJ-14 package and pinout, the MC74AC08MR1 and MC74ACT08MR1 differ in input threshold compatibility: MC74ACT08MR1 has TTL-compatible inputs (VIH = 2.0 V min at VCC = 5 V), while MC74AC08MR1 uses CMOS thresholds (VIH = 3.15 V min at VCC = 4.5 V). Swapping them requires verification of driving source logic family.
What package type does the MC74AC08MR1 use?
The MC74AC08MR1 uses the EIAJ-14 package - a 14-lead plastic SOIC variant with 3.9 mm body width and 1.27 mm lead pitch, also referenced as CASE 965. This is distinct from standard SOIC-14 (CASE 751A) and is verified by the device marking diagram and ordering information in the MC74AC08MR1 datasheet.
MC74AC08MR1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC74AC08MR1 FAQ
1.How can I place an order for MC74AC08MR1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74AC08MR1 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 MC74AC08MR1 reliable?
The price and inventory of MC74AC08MR1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74AC08MR1 is usually 5 days.
3.What payment methods are accepted for MC74AC08MR1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74AC08MR1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74AC08MR1?
MC74AC08MR1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74AC08MR1 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 MC74AC08MR1?
For technical support, including MC74AC08MR1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74AC08MR1 requirements.
6.How does Aetrix verify that MC74AC08MR1 is sourced from the original manufacturer or authorized distributors?
All MC74AC08MR1 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 MC74AC08MR1 meets industry standards.
7.What is the process for return or replacement of MC74AC08MR1?
All MC74AC08MR1 units undergo pre-shipment inspection (PSI). If there is an issue with MC74AC08MR1, 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 MC74AC08MR1 part is unused and in its original packaging.
Return procedure for MC74AC08MR1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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