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onsemi MC74LCX08DR2
- Part No.:
- MC74LCX08DR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74LCX08DR2.pdf
- Description:
- IC GATE AND 4CH 2-INP 14-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
MC74LCX08DR2 from onsemi is a low-voltage CMOS quad 2-input AND gate operating from 1.65 V to 5.5 V, featuring 5.0 V-tolerant inputs for mixed-voltage interfacing, 24 mA balanced output drive at 3.0 V, and near-zero static supply current (10 µA), deployed in industrial control logic and mixed-supply digital interface circuits.
For engineers reviewing the MC74LCX08DR2 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, SOIC-14 package details, real-world use cases, and validated alternative options for voltage-level translation and TTL/LVCMOS logic interfacing.
Technical Context
The MC74LCX08DR2 implements four independent 2-input AND gates in a single monolithic IC, with TTL-compatible input thresholds and LVCMOS-compatible output swing. Its 5.5 V absolute maximum input voltage rating enables safe connection to legacy 5 V TTL outputs without level shifters.
Each gate exhibits matched propagation delay (4.0 ns max at 4.5–5.5 V) and low dynamic switching noise (VOLP ≤ 0.8 V at 3.3 V), supporting clean signal integrity in high-speed digital control paths while maintaining latchup immunity (>100 mA) and ESD robustness (>2000 V HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports direct integration into 1.8 V, 2.5 V, 3.3 V, and 5 V systems without external regulators |
| Input Voltage Tolerance | −0.5 V to +6.5 V - allows reliable interfacing with 5 V TTL sources without clamping diodes or level translators |
| Output Drive Strength | ±24 mA at 3.0 V - sufficient to drive multiple LVTTL loads or moderate capacitive bus lines |
| Propagation Delay | 4.0 ns max at 4.5–5.5 V - enables operation in sub-250 MHz combinational logic paths |
| Quiescent Supply Current | 10 µA max - minimizes standby power in battery-backed or energy-sensitive applications |
| Operating Temperature | −40 °C to +125 °C - qualified for extended industrial and automotive under-hood environments |
| ESD Rating (HBM) | >2000 V - exceeds standard JEDEC requirements for handling and board-level reliability |
Pinout & Package
MC74LCX08DR2 is packaged in a 14-lead SOIC (Small Outline Integrated Circuit), case 751A, with 1.27 mm pitch, Pb-free finish, and RoHS compliance. The package is optimized for surface-mount reflow assembly and offers thermal resistance of 116 °C/W (JA).
| 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 drives one output; must be tied to VCC or GND if unused |
| 3, 6, 11, 14 | Outputs (O0, O1, O2, O3) | Active-high AND results; capable of sourcing/sinking 24 mA at 3.0 V; no internal pull-ups/downs |
| 7 | GND | Ground reference for all logic and power domains; requires low-impedance PCB connection |
| 14 | VCC | Single positive supply rail (1.65–5.5 V); powers all four gates and I/O structures |
Key Features
| Feature | Design Value |
|---|---|
| 5 V–tolerant inputs | Enables seamless interoperation between 3.3 V logic domains and legacy 5 V TTL peripherals without external components |
| 24 mA balanced output drive | Supports fan-out of ≥10 LVTTL loads or driving 50 pF traces at >20 MHz without signal degradation |
| Near-zero ICC quiescent current | Reduces system-level standby power by >95% compared to standard 74HC-series equivalents |
| Latchup immunity >100 mA | Guarantees robust operation under transient overvoltage or ground bounce conditions in noisy industrial environments |
| AEC-Q100 qualified variant available | MC74LCX08DTR2G−Q meets automotive qualification requirements for temperature, reliability, and PPAP documentation |
Applications
| Industrial PLC I/O Expansion | Mixed-Voltage Sensor Interface |
|---|---|
Use Scenario: Adding discrete logic gating to modular I/O cards in programmable logic controllers where field-side sensors operate at 5 V and controller core runs at 3.3 V. IC Role / Device Role / Timing Role: Level-translating AND gate enabling 5 V sensor enable signals to safely control 3.3 V FPGA-configurable I/O drivers. Use Value: Eliminates need for discrete level shifters or dual-supply buffers, reducing BOM count and PCB area by 30% per channel. |
Use Scenario: Conditioning analog-to-digital converter (ADC) ready signals from 5 V temperature/humidity sensors before feeding into a 1.8 V microcontroller. IC Role / Device Role / Timing Role: Input-synchronized AND gate ensuring ADC conversion start only when both sensor data valid and MCU ready flags are asserted. Use Value: Provides deterministic timing alignment with <4 ns skew across channels, preventing metastability in multi-sensor sampling. |
| Low-Power Remote Monitoring Node | Legacy Bus Signal Conditioning |
Use Scenario: Battery-powered environmental monitor using ultra-low-power MCU, requiring minimal active current during periodic sensor polling cycles. IC Role / Device Role / Timing Role: Enable-gating logic that activates sensor power rails only when MCU GPIO asserts both wake-up and permission signals. Use Value: Cuts average system sleep current to <1 µA by leveraging 10 µA ICC and zero-leakage inputs when disabled. |
Use Scenario: Retrofitting modern 3.3 V FPGAs into existing 5 V ISA or parallel printer port designs requiring handshake signal validation. IC Role / Device Role / Timing Role: Glue logic performing AND-based handshaking (e.g., STB ∧ ACK) between 5 V peripheral and 3.3 V host interface. Use Value: Maintains full 5 V signal integrity on bus side while delivering clean 3.3 V–compatible outputs to FPGA I/O banks. |
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 | Lower max VCC (3.6 V), no 5 V input tolerance; 24 mA drive at 3.3 V; identical SOIC-14 footprint | Requires external level shifting for 5 V inputs; suitable only in pure 3.3 V systems | Select when cost sensitivity outweighs mixed-voltage flexibility and 5 V legacy support is unnecessary |
| 74AHC08D,118 | Wider VCC range (2–5.5 V), but only 3.6 V input tolerant; 8 mA drive at 3.3 V; higher ICC (2 µA typical vs. 10 µA max) | Insufficient for direct 5 V TTL interfacing; lower drive limits fan-out in high-capacitance buses | Prefer for low-noise, low-power applications where 5 V compatibility is not required and layout space is constrained |
Compared with SN74LVC08APWR and 74AHC08D,118, the MC74LCX08DR2 uniquely combines 5.5 V input tolerance, 24 mA output strength, and sub-10 µA quiescent current-making it the only option among the three that supports drop-in replacement in mixed 3.3 V/5 V industrial control designs without redesigning level-shifting circuitry.
Availability
MC74LCX08DR2 is available at Aetrix Electronics and suitable for industrial automation, sensor interface modules, and low-power remote monitoring nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74LCX08DR2 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 silicon solutions for automotive, industrial, cloud, and IoT applications.
The MC74LCX08DR2 belongs to the LCX low-voltage logic family, engineered for interoperability across mixed-supply digital systems and designed specifically to simplify voltage-domain bridging in industrial control and instrumentation equipment.
FAQ
What is the maximum input voltage the MC74LCX08DR2 can tolerate?
The MC74LCX08DR2 supports DC input voltages up to +6.5 V, with a recommended VI specification of 5.5 V. This allows safe connection to 5 V TTL outputs without external protection, making the MC74LCX08DR2 ideal for mixed-voltage interface applications where legacy and modern logic coexist.
Does the MC74LCX08DR2 require external pull-up or pull-down resistors on unused inputs?
Yes - unused inputs on the MC74LCX08DR2 must be tied to either VCC or GND to prevent floating states that increase ICC and risk oscillation. The datasheet explicitly warns against floating inputs for ICC reasons, and the MC74LCX08DR2 has no internal termination resistors.
What package type is used for the MC74LCX08DR2?
The MC74LCX08DR2 uses a 14-lead SOIC package (case 751A), with Pb-free finish and RoHS compliance. It is supplied in tape-and-reel format (2500 units per reel), and its 1.27 mm lead pitch is compatible with standard SMT assembly processes.
Can the MC74LCX08DR2 operate reliably at −40 °C?
Yes - the MC74LCX08DR2 is fully specified from −40 °C to +125 °C, with all key parameters (propagation delay, output drive, VIH/VIL thresholds) guaranteed across this extended industrial temperature range. This makes the MC74LCX08DR2 suitable for outdoor, automotive, and factory-floor deployments.
How does the MC74LCX08DR2 compare to standard 74HC08 in terms of power consumption?
The MC74LCX08DR2 draws a maximum of 10 µA quiescent current, versus ~2 µA typical but up to several hundred µA for 74HC08 under similar conditions due to higher input leakage and less optimized process. At 3.3 V, the MC74LCX08DR2 reduces static power by >95% compared to HC-family equivalents, directly lowering system-level standby consumption.
MC74LCX08DR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LCX
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- AND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Quiescent (Max):
- 10 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.7V ~ 0.8V
- Input Logic Level - High:
- 1.7V ~ 2V
- Max Propagation Delay @ V, Max CL:
- 5.5ns @ 3.3V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74LCX08DR2 FAQ
1.How can I place an order for MC74LCX08DR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX08DR2 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 MC74LCX08DR2 reliable?
The price and inventory of MC74LCX08DR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX08DR2 is usually 5 days.
3.What payment methods are accepted for MC74LCX08DR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX08DR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX08DR2?
MC74LCX08DR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX08DR2 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 MC74LCX08DR2?
For technical support, including MC74LCX08DR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX08DR2 requirements.
6.How does Aetrix verify that MC74LCX08DR2 is sourced from the original manufacturer or authorized distributors?
All MC74LCX08DR2 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 MC74LCX08DR2 meets industry standards.
7.What is the process for return or replacement of MC74LCX08DR2?
All MC74LCX08DR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX08DR2, 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 MC74LCX08DR2 part is unused and in its original packaging.
Return procedure for MC74LCX08DR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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