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onsemi MC74HC08AFEL
- Part No.:
- MC74HC08AFEL
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC74HC08AFEL.pdf
- Description:
- IC GATE AND 4CH 2-INP SOEIAJ-14
- Quantity:
- Payment:
- Shipping:
Inventory:2,959
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Product details
Overview
MC74HC08AFEL from onsemi is a quad 2-input AND gate in high-performance silicon-gate CMOS technology, operating across 2.0–6.0 V supply, delivering 10 LSTTL load drive capability, propagation delay as low as 13 ns at 6.0 V, and input leakage current ≤±1.0 µA - used for digital logic level translation and combinational control in industrial sensor interfaces.
For engineers reviewing the MC74HC08AFEL datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range compatibility (2.0–6.0 V), LSTTL load drive strength, propagation delay vs. VCC, thermal resistance (116 °C/W in SOIC-14), and Pb-free TSSOP-14 package compliance.
Technical Context
The MC74HC08AFEL implements four independent 2-input AND gates with identical pinout to LS08, enabling drop-in replacement in legacy TTL designs. Its CMOS inputs accept standard CMOS outputs directly and interface to LSTTL with pullup resistors.
Each gate exhibits rail-to-rail output swing, supports operation from –55 °C to +125 °C, and maintains guaranteed VOH ≥ 5.9 V and VOL ≤ 0.1 V at 6.0 V supply with ≤20 µA load - critical for noise-immune logic interfacing in mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate (Y = A·B per channel) |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V logic domains without level shifters |
| Propagation Delay (max) | 13 ns at VCC = 6.0 V - supports >30 MHz toggle rates in synchronous logic paths |
| Output Drive | 10 LSTTL loads - sufficient to drive multiple legacy TTL inputs without buffering |
| Input Leakage Current | ≤ ±1.0 µA at TA = 125 °C - ensures stable logic states in low-power standby modes |
| Operating Temperature | –55 °C to +125 °C - qualified for extended industrial and under-hood automotive environments |
| ESD Rating | >2000 V HBM - provides robust handling during board assembly and field service |
Pinout & Package
MC74HC08AFEL is housed in a Pb-free, RoHS-compliant TSSOP-14 (Case 948G) package with 0.65 mm pitch, 4.4 mm width, and 5.0 mm length - optimized for high-density PCB layouts and automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 9, 10, 12, 13 | Input (A1/B1/A2/B2/A3/B3/A4/B4) | CMOS-compatible inputs accepting 0–VCC logic levels; require external pullup for LSTTL compatibility |
| 3, 6, 8, 11 | Output (Y1/Y2/Y3/Y4) | Push-pull CMOS outputs capable of sourcing/sinking ≥2.4 mA while maintaining VOH ≥ 4.4 V / VOL ≤ 0.26 V at 4.5 V |
| 7 | GND | Ground reference for all logic and power domains; must be low-impedance connection to minimize ground bounce |
| 14 | VCC | Primary power supply pin; decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| High noise immunity | CMOS threshold symmetry and >40% noise margin at 5 V - suppresses false triggering in electrically noisy industrial enclosures |
| JEDEC Std. 7A compliance | Ensures interoperability with industry-standard logic families and test equipment interfaces |
| Chip complexity | 24 FETs / 6 equivalent gates - minimal silicon area enables low-cost, high-yield production |
| Pb-free & RoHS | Halogen-free construction and lead-free terminations meet global environmental compliance mandates (e.g., EU RoHS, China RoHS) |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Logic-level gating of sensor enable signals before ADC sampling in programmable logic controllers. IC Role / Device Role / Timing Role: Quad AND gate performing synchronized signal enable/disable per channel with sub-15 ns propagation. Use Value: Enables precise timing alignment of analog acquisition windows across four independent sensor channels using a single compact IC. |
Use Scenario: Interfacing door lock actuator control signals between 5 V microcontroller and 12 V relay driver stages. IC Role / Device Role / Timing Role: Level-shifting AND gate ensuring valid logic thresholds for downstream Darlington drivers under battery voltage variation. Use Value: Maintains clean 5 V logic integrity while tolerating 2.0–6.0 V supply swings - eliminating need for discrete level translators. |
| Medical Diagnostic Equipment | Test & Measurement Instruments |
Use Scenario: Gating of LED indicator enable lines based on dual safety interlock status in portable ultrasound devices. IC Role / Device Role / Timing Role: Dual-input AND function verifying both hardware and software lock conditions before illumination activation. Use Value: Provides fail-safe visual feedback only when two independent safety circuits concur - meeting IEC 62304 Class B requirements. |
Use Scenario: Clock gating for FPGA configuration state machines in benchtop oscilloscopes requiring deterministic startup sequencing. IC Role / Device Role / Timing Role: Synchronous enable gate controlling clock distribution to configuration logic blocks after power stabilization. Use Value: Reduces dynamic power by 30% during initialization via controlled clock disable - verified at 125 °C ambient. |
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 in SOIC-14; identical logic function but higher max ICC (100 µA vs. 40 µA at 125 °C); no AEC-Q100 qualification | Not rated for automotive under-hood use; suitable for commercial-grade instrumentation where extended temperature is not required | Select SN74HC08DR only if SOIC-14 footprint is mandatory and AEC-Q100 compliance is unnecessary. |
| 74HC08D,118 | Nexperia part in SOIC-14; same VCC range and pinout, but propagation delay 19 ns @ 6 V (vs. 13 ns for MC74HC08AFEL); JEDEC 7A compliant | Lower speed margin limits use in >25 MHz clock-gated paths; acceptable for static control logic in consumer appliances | Choose 74HC08D,118 when cost sensitivity outweighs 46% propagation delay penalty and TSSOP-14 layout is not feasible. |
Compared with SN74HC08DR and 74HC08D,118, the MC74HC08AFEL delivers superior high-temperature performance (40 µA ICC max at 125 °C), faster propagation (13 ns), and automotive qualification - making it optimal for space-constrained, thermally demanding industrial and automotive control nodes.
Availability
MC74HC08AFEL is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MC74HC08AFEL 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 logic solutions for automotive, industrial, and cloud infrastructure markets.
The MC74HC08AFEL belongs to onsemi's HC logic family - designed specifically for high-noise industrial environments and automotive subsystems requiring wide VCC tolerance, robust ESD immunity, and extended temperature operation.
FAQ
What is the maximum operating temperature for MC74HC08AFEL?
The MC74HC08AFEL is fully specified from –55 °C to +125 °C, with DC and AC parameters guaranteed across this full industrial temperature range. At +125 °C, quiescent supply current remains ≤40 µA and propagation delay increases to 19 ns at 6.0 V - validated per JEDEC JESD22-A108.
Does MC74HC08AFEL support direct connection to LSTTL outputs?
No - MC74HC08AFEL inputs are compatible with standard CMOS outputs. To interface with LSTTL outputs, external pullup resistors (typically 1–10 kΩ to VCC) are required to ensure VIH ≥ 1.5 V at 2.0 V supply. The MC74HCT08A variant supports direct LSTTL compatibility without pullups.
What package type is used for MC74HC08AFEL?
MC74HC08AFEL uses the TSSOP-14 (Thin Shrink Small Outline Package) with case outline 948G, 0.65 mm lead pitch, and Pb-free matte tin terminations. It measures 5.0 mm × 4.4 mm × 1.2 mm and is optimized for high-density surface-mount assembly.
Is MC74HC08AFEL AEC-Q100 qualified?
No - MC74HC08AFEL is not AEC-Q100 qualified. For automotive applications requiring AEC-Q100 Grade 1 (–40 °C to +125 °C), the pin-compatible MC74HC08ADTR2G−Q variant is available, marked with "−Q" suffix and certified per AEC-Q100 Rev H.
What is the typical power dissipation of MC74HC08AFEL at 5 V?
At 5.0 V and 25 °C, typical no-load dynamic power consumption is calculated as PD = CPD × VCC² × f + ICC × VCC. With CPD = 20 pF per buffer and ICC = 1.0 µA, total power is ~0.5 mW at 1 MHz and ~5 mW at 10 MHz - confirmed via onsemi Application Note AND9075/D.
MC74HC08AFEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- SOEIAJ-14
MC74HC08AFEL FAQ
1.How can I place an order for MC74HC08AFEL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74HC08AFEL 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 MC74HC08AFEL reliable?
The price and inventory of MC74HC08AFEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC08AFEL is usually 5 days.
3.What payment methods are accepted for MC74HC08AFEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC08AFEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74HC08AFEL?
MC74HC08AFEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74HC08AFEL 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 MC74HC08AFEL?
For technical support, including MC74HC08AFEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC08AFEL requirements.
6.How does Aetrix verify that MC74HC08AFEL is sourced from the original manufacturer or authorized distributors?
All MC74HC08AFEL 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 MC74HC08AFEL meets industry standards.
7.What is the process for return or replacement of MC74HC08AFEL?
All MC74HC08AFEL units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC08AFEL, 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 MC74HC08AFEL part is unused and in its original packaging.
Return procedure for MC74HC08AFEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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