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onsemi MC74HC08AFL2
- Part No.:
- MC74HC08AFL2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC74HC08AFL2.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
MC74HC08AFL2 from onsemi is a quad 2-input AND gate in high-performance silicon-gate CMOS technology, pinout-compatible with LS08 TTL logic. It operates from 2.0 V to 6.0 V, delivers ±25 mA output drive per pin, features 10 LSTTL load drive capability, and supports industrial temperature range (–55 °C to +125 °C). It serves as a level-translating combinational logic element in digital control subsystems.
For engineers reviewing the MC74HC08AFL2 datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (SOIC-14), confirmed propagation delay (13 ns @ 6.0 V), input/output voltage compatibility (0 to VCC), quiescent current (≤40 µA), and validated alternatives for logic-level AND gate replacement in mixed-voltage systems.
Technical Context
The MC74HC08AFL2 implements four independent AND gates in a single monolithic CMOS IC, each with true AND logic function Y = A·B. Its inputs accept both CMOS and LSTTL-compatible signals (with pull-up resistors), and outputs directly interface to CMOS, NMOS, and TTL loads without level-shifting circuitry.
It complies with JEDEC Standard No. 7A, includes ESD protection circuitry, and requires all unused inputs tied to VCC or GND. The device exhibits high noise immunity, low input current (±0.1 µA max), and guaranteed AC performance across –55 °C to +125 °C at supply voltages from 2.0 V to 6.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - Enables operation across 3.3 V and 5 V logic domains without external regulators. |
| Propagation Delay (tPLH/tPHL) | 13 ns @ VCC = 6.0 V - Supports >30 MHz toggle rates in synchronous logic paths. |
| Output Drive Current | ±25 mA per pin - Sufficient to drive 10 LSTTL loads or multiple CMOS inputs directly. |
| Input Leakage Current | ±1.0 µA max @ 6.0 V - Ensures stable logic levels with high-impedance sources or long traces. |
| Operating Temperature | –55 °C to +125 °C - Qualified for under-hood automotive, industrial control, and extended-environment applications. |
| Input Capacitance | 10 pF max - Minimizes loading on preceding drivers and preserves signal edge integrity. |
| Quiescent Supply Current | 40 µA max @ 6.0 V - Enables use in low-power standby states without significant battery drain. |
Pinout & Package
MC74HC08AFL2 is supplied in a 14-lead SOIC package (Case 751A), with standard 1.27 mm pitch and JEDEC-compliant footprint. Pin 1 is marked by a notch or beveled corner; Pin 7 is GND and Pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | A1, A2, A3, A4 (Inputs) | First input of each AND gate; compatible with CMOS and LSTTL (with pull-up). |
| 2, 5, 10, 13 | B1, B2, B3, B4 (Inputs) | Second input of each AND gate; same voltage and drive compatibility as A pins. |
| 3, 6, 8, 11 | Y1, Y2, Y3, Y4 (Outputs) | AND result outputs; rail-to-rail swing (VOL ≤ 0.1 V, VOH ≥ 5.9 V @ 6.0 V). |
| 7 | GND | Ground reference for all inputs/outputs; must be low-impedance connection. |
| 14 | VCC | Positive supply; decoupling capacitor (0.1 µF) recommended adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Pinout compatibility with 74LS08 | Enables drop-in replacement in legacy TTL designs without PCB modification. |
| CMOS input compatibility | Accepts full-rail logic levels (0 V / VCC) without external biasing or level shifters. |
| High noise immunity | Typical noise margin >40% of VCC ensures robust operation in electrically noisy environments. |
| Pb-free, RoHS-compliant packaging | Meets global environmental regulations and supports lead-free reflow soldering profiles. |
| AEC-Q100 qualified variant available | NLV prefix versions are certified for automotive applications including engine control and body electronics. |
Applications
| Industrial PLC I/O Expansion | Digital Power Sequencing Control |
|---|---|
|
Use Scenario: Enabling discrete sensor inputs only when system enable and valid clock are both asserted. IC Role / Device Role / Timing Role: Combinational logic gate performing real-time AND of two asynchronous control signals before enabling downstream latches. Use Value: Eliminates need for discrete diode-OR or additional microcontroller GPIO, reducing BOM count and firmware complexity. |
Use Scenario: Controlling power-on sequence of multi-rail FPGA supplies where 1.2 V rail must be stable before enabling 3.3 V auxiliary rails. IC Role / Device Role / Timing Role: Logic-level gating of enable signals between voltage monitoring outputs and DC-DC enable inputs. Use Value: Provides deterministic, zero-latency interlock without software intervention or timing-critical delays. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
|
Use Scenario: Activating interior lighting only when door-open signal AND ignition-on signal are simultaneously present. IC Role / Device Role / Timing Role: Safety-critical combinatorial logic element verifying dual conditions before actuating load drivers. Use Value: Meets ASIL-A functional safety requirements via hardware-based redundancy check, avoiding single-point failure modes. |
Use Scenario: Gating test pattern generators to prevent spurious signals from reaching DUT during setup or calibration phases. IC Role / Device Role / Timing Role: Digital enable gate synchronizing stimulus delivery with measurement acquisition windows. Use Value: Reduces false triggers and improves repeatability in automated test systems operating at up to 30 MHz. |
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, same SOIC-14 package, but wider propagation delay (19 ns @ 6 V) and higher ICC (100 µA max). | Valid for cost-sensitive industrial designs where <20 ns timing margin exists; not AEC-Q100 qualified. | Select when sourcing from TI-authorized channels and timing budget allows ≥6 ns extra delay. |
| 74VHC08M | ON Semiconductor's higher-speed VHC variant: 7.5 ns @ 5 V, but narrower VCC range (2.0–5.5 V) and no NLV automotive option. | Suitable for high-speed data path gating in 3.3 V systems; lacks extended temperature support beyond +105 °C. | Choose for speed-critical 3.3 V applications where industrial temp range suffices and automotive qualification is unnecessary. |
Compared with SN74HC08DR and 74VHC08M, the MC74HC08AFL2 offers superior temperature range (–55 °C to +125 °C), lower quiescent current (40 µA vs. 100 µA), and direct AEC-Q100-qualified variants-making it optimal for automotive and harsh-environment embedded control where reliability and wide-VCC operation are critical.
Availability
MC74HC08AFL2 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and digital power management applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MC74HC08AFL2 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74HC08AFL2 belongs to the 74HC logic family, designed for pin-compatible upgrades from legacy TTL while delivering CMOS power efficiency, wide supply range, and robust noise immunity in industrial and automotive control systems.
FAQ
What is the maximum operating voltage for MC74HC08AFL2?
The MC74HC08AFL2 supports a DC supply voltage range of 2.0 V to 6.0 V, with absolute maximum rating of –0.5 V to +7.0 V on VCC. Operation above 6.0 V is outside recommended conditions and may compromise reliability or parametric guarantees. The MC74HC08AFL2 is rated for continuous operation up to 6.0 V across its full temperature range.
Is MC74HC08AFL2 compatible with 3.3 V logic systems?
Yes, MC74HC08AFL2 is fully compatible with 3.3 V logic systems. Its recommended operating range includes 3.3 V, and it guarantees VIH ≥ 2.1 V and VIL ≤ 0.9 V at that supply, providing >1.2 V noise margin. Inputs accept standard 3.3 V CMOS levels, and outputs swing rail-to-rail (VOL ≤ 0.26 V, VOH ≥ 3.0 V), ensuring interoperability with other 3.3 V logic families.
Does MC74HC08AFL2 require external pull-up resistors on inputs?
MC74HC08AFL2 inputs are CMOS-compatible and do not require pull-up resistors when driven by CMOS or HC-series outputs. However, when interfacing with open-collector or LSTTL outputs (e.g., 74LSxx), external pull-up resistors (typically 1–10 kΩ to VCC) are required to ensure valid high-level input voltage. Unused inputs on MC74HC08AFL2 must be tied to VCC or GND-never left floating.
What is the propagation delay of MC74HC08AFL2 at 5 V supply?
At VCC = 5.0 V and TA = 25 °C, the typical propagation delay (tPLH/tPHL) of MC74HC08AFL2 is 15 ns, with a guaranteed maximum of 19 ns over the full industrial temperature range (–55 °C to +125 °C). This value is measured with CL = 50 pF and input rise/fall times ≤6 ns, per the official AC characteristics table in the datasheet.
Can MC74HC08AFL2 replace 74LS08 in existing designs?
Yes, MC74HC08AFL2 is explicitly designed as a pinout-compatible and functionally equivalent replacement for 74LS08. It matches the same 14-pin SOIC layout and truth table, while offering improved noise immunity, lower power consumption, and wider supply voltage range. When replacing 74LS08, verify that input pull-ups are retained if driving LS outputs, and confirm timing margins accommodate the slightly different propagation profile.
MC74HC08AFL2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.209", 5.30mm 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
MC74HC08AFL2 FAQ
1.How can I place an order for MC74HC08AFL2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74HC08AFL2 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 MC74HC08AFL2 reliable?
The price and inventory of MC74HC08AFL2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC08AFL2 is usually 5 days.
3.What payment methods are accepted for MC74HC08AFL2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC08AFL2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74HC08AFL2?
MC74HC08AFL2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74HC08AFL2 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 MC74HC08AFL2?
For technical support, including MC74HC08AFL2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC08AFL2 requirements.
6.How does Aetrix verify that MC74HC08AFL2 is sourced from the original manufacturer or authorized distributors?
All MC74HC08AFL2 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 MC74HC08AFL2 meets industry standards.
7.What is the process for return or replacement of MC74HC08AFL2?
All MC74HC08AFL2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC08AFL2, 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 MC74HC08AFL2 part is unused and in its original packaging.
Return procedure for MC74HC08AFL2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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