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onsemi MC74LCX08M
- Part No.:
- MC74LCX08M
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74LCX08M.pdf
- Description:
- IC GATE AND
- Quantity:
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Inventory:2,300
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Product details
Overview
MC74LCX08M from ON Semiconductor is a low-voltage CMOS quad 2-input AND gate operating from 2.3 V to 3.6 V, featuring 5.5 V-tolerant inputs, ±24 mA balanced output drive, near-zero static supply current (10 µA), and SOEIAJ-14 package. It interfaces between 3.3 V logic domains and legacy 5 V TTL systems in mixed-voltage digital control circuits.
For engineers reviewing the MC74LCX08M datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, truth table behavior, input/output voltage thresholds, propagation delays at 2.5 V/3.3 V, and real-world interface constraints for voltage-level translation and bus gating.
Technical Context
The MC74LCX08M implements four independent AND gates with LVTTL- and LVCMOS-compatible input thresholds and rail-to-rail output swing. Its VIH/VIL thresholds scale with VCC (e.g., VIH ≥ 2.0 V at VCC = 2.7–3.6 V), enabling reliable operation across 2.5 V and 3.3 V supply rails.
Each gate exhibits matched tPLH/tPHL propagation delays (1.5–6.6 ns depending on VCC and CL), sub-1 ns output-to-output skew, and dynamic noise margins validated under 50 pF load. Input leakage remains ≤ ±5 µA, and latchup immunity exceeds 500 mA per JEDEC JESD78.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - supports dual-supply systems and battery-powered 2.5 V/3.3 V logic without level shifters |
| Input Voltage Tolerance | −0.5 V to +5.5 V - enables direct connection to 5 V TTL outputs without external clamping |
| Output Drive | ±24 mA at VCC = 3.0–3.6 V - drives 10 LVTTL loads or 15–20 CMOS inputs with full logic swing |
| Propagation Delay | 1.5–6.6 ns (CL = 50 pF, VCC = 2.5–3.3 V) - ensures timing compliance in 100+ MHz clocked control paths |
| Quiescent ICC | 10 µA max - reduces standby power in always-on sensor interface or power-management logic |
| Input Capacitance | 7 pF typical - minimizes capacitive loading on upstream drivers in high-speed bus fanout |
| ESD Rating | HBM >2000 V - meets IEC 61000-4-2 Level 2 for board-level ESD robustness |
Pinout & Package
MC74LCX08M uses the SOEIAJ-14 (JEDEC MS-012) package: 14-pin small-outline integrated circuit with gull-wing leads, 1.27 mm pitch, and 10.2 mm × 5.3 mm body size. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | Data Inputs (A0/B0, A1/B1, A2/B2, A3/B3) | Four independent AND gate inputs; each pair (An/Bn) feeds one gate; 5.5 V tolerant |
| 3, 6, 11, 14 | Outputs (O0/O1/O2/O3) | Push-pull CMOS outputs; ±24 mA drive; rail-swing (VOL ≤ 0.55 V at 24 mA) |
| 7 | GND | Ground reference for all logic and supply return; must be low-impedance for noise control |
| 14 | VCC | Primary power supply (2.3–3.6 V); decoupling capacitor required within 1 cm of pin |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables seamless interfacing with 5 V microcontrollers or legacy peripherals without external level translators |
| 24 mA balanced sink/source | Supports driving multiple downstream logic gates or LED indicators directly from any output |
| 10 µA quiescent current | Reduces system-level standby power in battery-backed real-time clocks or low-power wake-up logic |
| Latchup immunity >500 mA | Ensures robust operation during transient overvoltage events in industrial control backplanes |
| SOEIAJ-14 Pb-free option | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profile for lead-free assembly |
Applications
| Industrial PLC I/O Expansion | Low-Power Sensor Interface Logic |
|---|---|
Use Scenario: Adding discrete logic gating to isolate or enable analog sensor signal paths in programmable logic controller modules. IC Role / Device Role / Timing Role: Quad AND gate used as enable-controlled pass-through for ADC trigger lines and DAC update strobes. Use Value: 5.5 V input tolerance allows direct connection to 5 V PLC backplane control signals while operating from local 3.3 V supply. | Use Scenario: Managing power sequencing and data readiness flags between ultra-low-power sensors and host microcontrollers. IC Role / Device Role / Timing Role: AND gate combining motion-detection interrupt and low-battery flag to generate consolidated wake-up pulse. Use Value: 10 µA quiescent current prevents measurable impact on multi-year battery life in wireless sensor nodes. |
| Embedded System Bus Gating | Legacy Peripheral Interface Adapter |
Use Scenario: Enabling/disabling SPI or I²C peripheral access based on system security state or power mode. IC Role / Device Role / Timing Role: Gate controlling SCLK and MOSI lines to isolated memory or secure element ICs. Use Value: Matched 1.5–6.6 ns propagation delay ensures no clock skew across gated signals in 20 MHz SPI buses. | Use Scenario: Adapting 5 V parallel printer port handshaking signals (BUSY, ACK) to 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Input buffer and logic combiner converting open-collector 5 V signals into clean CMOS-level interrupts. Use Value: High-impedance TTL-compatible inputs draw <5 µA, eliminating need for pull-up resistors on legacy 5 V lines. |
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 |
|---|---|---|---|
| SN74LVC08APWR | Same VCC range (1.65–3.6 V), lower VIH (2.0 V min at VCC = 2.7 V), 24 mA drive, TSSOP-14 | Higher noise immunity at 1.8 V operation; not rated for 5.5 V input tolerance | Select when operating below 2.3 V or requiring tighter 1.8 V logic compatibility |
| 74LCX08MTCX | Identical electrical specs and pinout; same SOEIAJ-14 package; identical marking format (ALYW) | No functional difference; alternate ordering code from same ON Semiconductor wafer lot | Select when sourcing from distributors listing MTCX instead of M suffix |
Compared with SN74LVC08APWR and 74LCX08MTCX, the MC74LCX08M uniquely guarantees 5.5 V input tolerance at 2.3–3.6 V VCC-critical for mixed-voltage industrial backplanes-while maintaining identical SOEIAJ-14 footprint and 10 µA quiescent current.
Availability
MC74LCX08M is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, low-power sensor interface logic, and embedded system bus gating requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MC74LCX08M 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
ON Semiconductor (now part of onsemi) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74LCX08M belongs to the LCX family of low-voltage, 5 V-tolerant CMOS logic devices designed specifically for mixed-supply system interfacing-enabling seamless integration between legacy 5 V subsystems and modern 3.3 V/2.5 V digital cores.
FAQ
What is the maximum input voltage rating for MC74LCX08M?
The MC74LCX08M supports DC input voltages from −0.5 V to +5.5 V, independent of VCC. This 5.5 V absolute maximum rating allows safe interfacing with 5 V TTL outputs without external protection diodes or level shifters, as confirmed in the Maximum Ratings table of the official ON Semiconductor datasheet (Rev. 6, May 2005).
Does MC74LCX08M support operation at 2.5 V VCC?
Yes, MC74LCX08M is fully specified for 2.5 V operation: Recommended Operating Conditions list VCC = 2.5 V ± 0.2 V, and DC Electrical Characteristics include VIH/VIL, VOH/VOL, and IOL/IOH values at 2.5 V. Propagation delay is guaranteed at 1.5–6.6 ns with CL = 30 pF, making MC74LCX08M suitable for 2.5 V system domains.
What package type does MC74LCX08M use?
MC74LCX08M uses the SOEIAJ-14 package (Case 965), a 14-pin small-outline IC with gull-wing leads, 1.27 mm pitch, and dimensions of 10.2 mm × 5.3 mm. This is distinct from SOIC-14 (Case 751A) and TSSOP-14 (Case 948G), and is explicitly listed in the Ordering Information table for MC74LCX08M and MC74LCX08MELG variants.
Can MC74LCX08M replace standard 74HC08 in existing designs?
MC74LCX08M is not a drop-in replacement for 74HC08 due to different supply voltage ranges: 74HC08 operates from 2 V to 6 V, while MC74LCX08M is limited to 2.3–3.6 V. However, in 3.3 V systems where 5 V tolerance is needed, MC74LCX08M provides superior interface capability versus 74HC08's 7 V absolute max but no 5 V-tolerant guarantee. Layout changes may be needed for SOEIAJ-14 vs. SOIC-14 footprints.
What is the output drive strength of MC74LCX08M at 3.3 V?
At VCC = 3.0–3.6 V, MC74LCX08M delivers ±24 mA output drive-24 mA sink (IOL) and 24 mA source (IOH)-as specified in the Recommended Operating Conditions table. This matches LVTTL drive strength and supports fanout to 10 LVTTL loads or direct LED driving with appropriate series resistance, verified across temperature (−40°C to +85°C) and process corners.
MC74LCX08M 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:
- -
MC74LCX08M FAQ
1.How can I place an order for MC74LCX08M through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX08M 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 MC74LCX08M reliable?
The price and inventory of MC74LCX08M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX08M is usually 5 days.
3.What payment methods are accepted for MC74LCX08M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX08M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX08M?
MC74LCX08M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX08M 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 MC74LCX08M?
For technical support, including MC74LCX08M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX08M requirements.
6.How does Aetrix verify that MC74LCX08M is sourced from the original manufacturer or authorized distributors?
All MC74LCX08M 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 MC74LCX08M meets industry standards.
7.What is the process for return or replacement of MC74LCX08M?
All MC74LCX08M units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX08M, 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 MC74LCX08M part is unused and in its original packaging.
Return procedure for MC74LCX08M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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