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onsemi MC74LCX00DR2
- Part No.:
- MC74LCX00DR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74LCX00DR2.pdf
- Description:
- IC GATE NAND 4CH 2-INP 14-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,282
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Product details
Overview
MC74LCX00DR2 from onsemi is a low-voltage CMOS quad 2-input NAND gate operating from 1.65 V to 5.5 V supply, featuring 5 V-tolerant inputs for mixed-voltage interfacing, 24 mA balanced output drive at 3.0 V, near-zero static supply current (10 µA), and SOIC-14 packaging. It serves as a level-shifting logic buffer in battery-powered microcontroller I/O expansion circuits.
For engineers reviewing the MC74LCX00DR2 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, validated pin functions, real-world use cases in mixed-supply systems, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The MC74LCX00DR2 implements four independent NAND gates in a single SOIC-14 package, each with TTL-compatible input thresholds and LVTTL/LVCMOS-compatible output swing. Its 5 V-tolerant inputs enable direct connection to legacy 5 V logic without external level shifters.
It operates across −40 °C to +125 °C with propagation delays as low as 4.2 ns at 4.5–5.5 V and supports tri-state behavior only via external gating - the device itself has no internal enable control. Input leakage remains ≤ ±5.0 µA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - enables operation in 1.8 V, 2.5 V, 3.3 V, and 5 V systems without voltage translation. |
| Input Voltage Tolerance | −0.5 V to +6.5 V - allows safe interfacing with 5 V TTL outputs while powered from lower VCC. |
| Output Drive | ±24 mA @ 3.0 V - sufficient to drive multiple LVTTL loads or small capacitive buses directly. |
| Propagation Delay | 4.2 ns max @ 4.5–5.5 V - supports >200 MHz toggle rates in critical timing paths. |
| Quiescent ICC | 10 µA max - reduces standby power in always-on IoT sensor nodes and portable devices. |
| Input Leakage | ±5.0 µA max @ 3.6 V - ensures stable logic levels even with high-impedance pull-ups in battery-critical designs. |
| ESD Rating | HBM >2000 V - provides robust handling during manual assembly and board-level integration. |
Pinout & Package
MC74LCX00DR2 is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) per case 751A, with standard 1.27 mm pitch and 8.75 mm × 3.9 mm body dimensions. Pin 1 is located at the top-left corner with a beveled edge indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A0 | First NAND gate input A - must be tied to defined logic level if unused to prevent floating-induced ICC increase. |
| 2 | B0 | First NAND gate input B - shares same VIH/VIL thresholds as all inputs; tolerant up to 6.5 V. |
| 3 | O0 | First NAND gate output - drives active-low logic; VOL ≤ 0.6 V @ 24 mA sink at 4.5 V. |
| 4 | A1 | Second NAND gate input A - electrically identical to A0; no internal coupling between gates. |
| 5 | B1 | Second NAND gate input B - supports same 5 V-tolerant operation regardless of VCC setting. |
| 6 | O1 | Second NAND gate output - matched delay and drive strength to O0; tPLH/tPHL skew ≤ 1.0 ns. |
| 7 | GND | Ground reference - all DC and AC specs referenced to this pin; requires low-inductance PCB connection. |
| 8 | O2 | Third NAND gate output - shares same output structure and load capability as O0 and O1. |
| 9 | A2 | Third NAND gate input A - supports VI = 0 to 5.5 V independent of VCC value. |
| 10 | B2 | Third NAND gate input B - input capacitance is 7 pF typical, minimizing switching current draw. |
| 11 | O3 | Fourth NAND gate output - fully characterized for 50 pF load at 3.3 V; VOLP ≤ 0.8 V. |
| 12 | A3 | Fourth NAND gate input A - unused inputs must be tied to GND or VCC per datasheet directive. |
| 13 | B3 | Fourth NAND gate input B - no internal ESD diode path to VCC; VI rating applies to absolute max only. |
| 14 | VCC | Positive supply - decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable AC performance. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant inputs | Enables direct interface with 5 V microcontrollers or peripherals while operating from 1.8 V or 2.5 V rails - eliminates discrete level shifters. |
| 24 mA balanced output drive | Supports fan-out of ≥10 LVTTL loads at 3.3 V, reducing need for buffer stages in I/O expander designs. |
| Near-zero static ICC | 10 µA max quiescent current extends battery life in always-on sensor nodes and wearable electronics. |
| Latchup immunity >100 mA | Guarantees robustness against transient overvoltage events in industrial control environments with noisy power rails. |
| Pb-free, RoHS-compliant packaging | SOIC-14 package meets global environmental compliance requirements without derating or performance trade-offs. |
Applications
| Industrial PLC I/O Expansion | Low-Power MCU GPIO Multiplexing |
|---|---|
|
Use Scenario: Adding isolated digital input conditioning to a 3.3 V ARM Cortex-M4-based PLC module receiving 5 V field sensor signals. IC Role / Device Role / Timing Role: Level-shifting NAND gate performing active-low signal inversion and noise filtering before MCU sampling. Use Value: Eliminates external voltage translators; 5 V-tolerant inputs accept raw 5 V sensor outputs while VCC = 3.3 V ensures compatibility with MCU I/O voltage. |
Use Scenario: Expanding GPIO count on a battery-powered medical patch monitor using a 1.8 V ultra-low-power MCU. IC Role / Device Role / Timing Role: Logic gate providing active-low enable control for peripheral sensors and status indicators. Use Value: 10 µA ICC minimizes standby drain; 1.65 V minimum VCC allows operation down to depleted battery voltages (~1.7 V). |
| Automotive Body Control Module | Consumer USB-C Power Delivery Interface |
|
Use Scenario: Implementing fault-detection logic in an AEC-Q100 qualified body control unit monitoring door lock actuator feedback. IC Role / Device Role / Timing Role: NAND-based combinatorial logic detecting mismatched lock/unlock command and position sensor states. Use Value: −40 °C to +125 °C operation and latchup immunity >100 mA ensure reliability in under-hood thermal environments. |
Use Scenario: Managing bi-directional CC line signaling arbitration in a USB-C port controller design with mixed 3.3 V and 5 V subsystems. IC Role / Device Role / Timing Role: Signal conditioning gate synchronizing pull-up/pull-down control between 3.3 V PD controller and 5 V legacy accessory detection circuitry. Use Value: 4.2 ns propagation delay supports USB-C's 100 ms timing budget; 5 V tolerance prevents damage from CC line voltage excursions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC00APWR | Lower VCC min (1.65 V same), but VI max = VCC + 0.5 V - not 5 V-tolerant; 32 mA drive @ 3.3 V. | Requires external level shifters when interfacing with 5 V sources; better suited for pure 3.3 V systems. | Select SN74LVC00APWR only when all upstream logic is ≤ VCC + 0.5 V and higher drive is needed. |
| 74AHC00PW,118 | Wider VCC range (2 V–5.5 V); VI max = VCC + 0.5 V; 8 mA drive @ 3.3 V; 7.5 ns delay @ 3.3 V. | Not suitable for 1.8 V or 2.5 V operation; insufficient drive for multi-load fan-out without buffers. | Choose 74AHC00PW,118 only in legacy 5 V-only designs where low ICC is secondary to cost. |
Compared with SN74LVC00APWR and 74AHC00PW,118, the MC74LCX00DR2 uniquely supports true 5 V input tolerance at VCC as low as 1.65 V - enabling single-chip mixed-voltage interfacing without redesigning signal chains or adding components.
Availability
MC74LCX00DR2 is available at Aetrix Electronics and suitable for industrial automation controllers, battery-powered medical wearables, automotive body electronics, and USB-C power delivery interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74LCX00DR2 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, medical, and IoT applications.
The MC74LCX00DR2 belongs to the LCX low-voltage logic family, designed specifically for mixed-supply system interfacing where 5 V legacy components coexist with modern sub-3.3 V digital ICs - prioritizing voltage tolerance, low power, and wide temperature operation.
FAQ
What is the maximum input voltage the MC74LCX00DR2 can safely accept?
The MC74LCX00DR2 supports DC input voltages from −0.5 V to +6.5 V, independent of VCC. This 5 V-tolerant capability allows it to interface directly with 5 V TTL outputs even when powered from 1.65 V to 3.3 V supplies - a key differentiator versus standard LVC or AHC families. The absolute maximum rating must not be exceeded in continuous operation.
Does the MC74LCX00DR2 have a tri-state output mode?
No, the MC74LCX00DR2 does not include internal tri-state control. Each of its four NAND gates has a standard push-pull output with no enable pin. To achieve high-impedance behavior, external gating (e.g., AND-ing the output with an enable signal) is required. This differs from octal buffers or bus transceivers that integrate explicit output-enable functionality.
What is the recommended decoupling for the MC74LCX00DR2?
A 0.1 µF ceramic capacitor placed within 5 mm of the VCC (pin 14) and GND (pin 7) pins is mandatory for stable high-speed operation. For systems with heavy simultaneous switching, a bulk 4.7 µF tantalum or aluminum electrolytic capacitor should be added nearby. The low 7 pF input capacitance helps minimize dynamic current spikes, but proper local decoupling remains essential to suppress supply rail noise.
Can unused inputs on the MC74LCX00DR2 be left floating?
No - unused inputs on the MC74LCX00DR2 must never be left floating. Per the datasheet, all unused inputs must be tied to either VCC or GND using a direct connection or appropriate pull-up/down resistor. Floating inputs cause increased ICC, unpredictable logic states, and potential oscillation due to noise coupling, especially in high-impedance CMOS structures.
Is the MC74LCX00DR2 suitable for automotive applications?
The MC74LCX00DR2 itself is not AEC-Q100 qualified; however, the pin-compatible MC74LCX00DTR2G−Q variant is explicitly rated for automotive use with PPAP capability. For non-automotive industrial or consumer designs requiring −40 °C to +125 °C operation, the MC74LCX00DR2 meets full temperature specification and offers identical electrical performance - just without automotive documentation traceability.
MC74LCX00DR2 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:
- NAND 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
MC74LCX00DR2 FAQ
1.How can I place an order for MC74LCX00DR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LCX00DR2 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 MC74LCX00DR2 reliable?
The price and inventory of MC74LCX00DR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LCX00DR2 is usually 5 days.
3.What payment methods are accepted for MC74LCX00DR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LCX00DR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LCX00DR2?
MC74LCX00DR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LCX00DR2 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 MC74LCX00DR2?
For technical support, including MC74LCX00DR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LCX00DR2 requirements.
6.How does Aetrix verify that MC74LCX00DR2 is sourced from the original manufacturer or authorized distributors?
All MC74LCX00DR2 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 MC74LCX00DR2 meets industry standards.
7.What is the process for return or replacement of MC74LCX00DR2?
All MC74LCX00DR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74LCX00DR2, 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 MC74LCX00DR2 part is unused and in its original packaging.
Return procedure for MC74LCX00DR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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