NXP Semiconductors 74ALVC541D,112
- Part No.:
- 74ALVC541D,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ALVC541D,112.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 20SO
- Quantity:
- Payment:

- Shipping:

Inventory:1,914
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Product details
Overview
74ALVC541D,112 from Nexperia is an octal non-inverting 3-state buffer/line driver with dual active-low output enables (OE0, OE1), Schmitt-trigger inputs for noise immunity, and IOFF partial power-down protection. It operates from 1.65 V to 3.6 V, supports -40 °C to +125 °C ambient, and delivers propagation delay as low as 2.3 ns at 3.3 V in industrial control backplane interfacing.
For engineers reviewing the 74ALVC541D,112 datasheet, 74ALVC541D,112 pinout, 74ALVC541D,112 application, or 74ALVC541D,112 equivalent, this device is selected for level translation between mixed-voltage logic domains, bus isolation in modular I/O systems, and robust signal conditioning in noisy industrial environments where input slew tolerance and power-down safety are critical.
Technical Context
The 74ALVC541D implements CMOS-based buffered logic with two independent enable controls-OE0 governs Y0–Y3 outputs, OE1 governs Y4–Y7-enabling flexible bus segmentation. Its Schmitt-trigger inputs accept slow-rising signals down to 10 ns/V transition rate, eliminating external hysteresis components.
IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±80 μA and preventing damage during hot-swap or partial system power-down. Input overvoltage tolerance up to 3.6 V allows safe interfacing with 3.3 V signals even when powered from 1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 1.65 V to 3.6 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic families without level shifters. |
| Propagation delay | 2.3 ns typical at VCC = 3.0 V - ensures sub-5 ns timing margin for 100 MHz bus clocking in industrial PLC modules. |
| IOFF leakage | ±80 μA max at VCC = 0 V - guarantees safe hot-plug operation and prevents unintended loading of powered-down buses. |
| Input hysteresis | Typical 0.2 V - rejects noise on slow-rising control lines (e.g., mechanical switch debouncing or long PCB traces). |
| Output drive | ±24 mA at VCC = 3.0 V - drives 50 pF loads across 15 cm FR-4 traces while maintaining VOL ≤ 0.55 V and VOH ≥ 2.2 V. |
| ESD rating | HBM >2000 V, CDM >1000 V - meets industrial IEC 61000-4-2 immunity requirements without external protection diodes. |
| Operating temperature | -40 °C to +125 °C - qualified for under-hood automotive body control modules and factory-floor motor drives. |
Pinout & Package
74ALVC541D,112 uses SO20 (SOT163-1) package: plastic small outline, 20 leads, 7.5 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-013 compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE0 | Active-low enable for outputs Y0–Y3; ties to ground via pull-down for default enabled state in static I/O expansion. |
| 2 | VCC | Main supply rail; decoupling capacitor (100 nF) required within 5 mm for stable 3.3 V operation. |
| 3–10 | A0–A7 | Buffered data inputs; Schmitt-triggered to tolerate 10 ns/V edge rates and reject <100 mV noise spikes. |
| 11–18 | Y0–Y7 | 3-state outputs; high-impedance (Z) when OE0 or OE1 is HIGH, enabling shared bus arbitration. |
| 19 | OE1 | Active-low enable for outputs Y4–Y7; permits independent control of upper/lower nibbles in memory-mapped I/O. |
| 20 | GND | Signal reference plane; must be connected to low-impedance ground plane to limit ΔV noise during 24 mA switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | OE0 and OE1 separately gate Y0–Y3 and Y4–Y7, enabling split-bus control in multi-drop RS-485 transceiver interfaces. |
| IOFF partial power-down | Outputs disable safely at VCC = 0 V, preventing backfeed into unpowered subsystems during maintenance or firmware update cycles. |
| Overvoltage-tolerant inputs | Accepts 3.6 V inputs while operating at 1.8 V VCC - eliminates need for external level translators in mixed-supply sensor hubs. |
| Schmitt-trigger inputs | 0.2 V typical hysteresis - suppresses contact bounce in relay driver control paths and eliminates need for RC filters. |
| JEDEC-compliant voltage ranges | Fully supports JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.5 V), and JESD8C/JESD36 (2.7–3.6 V) - simplifies qualification across multiple voltage domains. |
Applications
| Industrial Backplane Interface | Modular I/O Expansion |
|---|---|
|
Use Scenario: Isolating microcontroller GPIO banks from high-noise 24 V DC fieldbus segments in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional buffer with 3-state control, providing galvanic separation via discrete optocouplers and driving 50 pF stubs on DIN-rail-mounted I/O cards. Use Value: IOFF prevents backfeed into MCU during module hot-swap; Schmitt inputs reject EMI-induced glitches on 2 m ribbon cables. |
Use Scenario: Expanding 8-bit parallel data paths between ARM Cortex-M7 host and legacy 8-bit peripheral ASICs in test equipment racks. IC Role / Device Role / Timing Role: Non-inverting line driver with dual OE control, synchronizing data transfers using separate chip-select strobes per peripheral group. Use Value: 2.3 ns tpd ensures setup/hold compliance at 80 MHz; ±24 mA drive sustains signal integrity across 10 cm backplane traces. |
| Automotive Body Control Unit | Factory Automation Sensor Hub |
|
Use Scenario: Level-shifting LIN bus wake-up signals and door-lock actuator commands between 5 V legacy sensors and 3.3 V MCU in BCM modules. IC Role / Device Role / Timing Role: Voltage-tolerant buffer translating 5 V inputs to 3.3 V logic levels while maintaining 125 °C junction temperature capability. Use Value: Overvoltage-tolerant inputs eliminate external clamping diodes; -40 °C to +125 °C rating matches under-hood thermal profiles. |
Use Scenario: Aggregating analog sensor readings (temperature, pressure, vibration) from 8-channel ADCs onto a shared SPI data bus in predictive maintenance gateways. IC Role / Device Role / Timing Role: 3-state bus driver isolating ADC output latches, enabling time-multiplexed readout without contention. Use Value: Dual OE pins allow staggered enable timing to reduce simultaneous switching noise; HBM >2000 V withstands ESD events near metal enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC541APWR | Single OE input; no dual-enable architecture; 1.65–3.6 V range; 3.5 ns tpd at 3.3 V. | Lacks independent Y0–Y3/Y4–Y7 control; unsuitable for segmented bus arbitration requiring nibble-level gating. | Select when cost sensitivity outweighs need for dual-OE flexibility and timing-critical bus partitioning is not required. |
| 74LVCH162244ADGG | 16-bit, dual 8-bit sections; 3.3 V only; 2.9 ns tpd; higher pin count (48-pin TSSOP). | Requires PCB redesign for 48-pin footprint; lacks IOFF and overvoltage tolerance - unsafe for partial-power-down systems. | Choose only for high-density 16-bit parallel interfaces where board space permits larger package and full-system power cycling is guaranteed. |
Compared with SN74LVC541APWR and 74LVCH162244ADGG, the 74ALVC541D,112 uniquely combines dual 3-state enables, IOFF protection, and 1.65–3.6 V operation in a compact SO20 package-making it optimal for modular, hot-swappable industrial I/O where bus segmentation and power sequencing safety are mandatory.
Availability
74ALVC541D,112 is available at Aetrix Electronics and suitable for industrial automation backplanes, automotive body control units, modular I/O expansion systems, and factory sensor aggregation nodes requiring stable component supply across extended temperature and mixed-voltage environments.
Supply support for 74ALVC541D,112 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions for industrial, automotive, and consumer markets.
The 74ALVC family delivers advanced low-voltage CMOS logic optimized for mixed-supply systems, emphasizing power efficiency, noise immunity, and robustness in harsh operating conditions.
FAQ
What is the maximum allowable input voltage when VCC = 1.8 V?
The 74ALVC541D,112 accepts input voltages up to 3.6 V regardless of VCC level, enabling safe interfacing with 3.3 V signals while operating from 1.8 V. This overvoltage tolerance eliminates external level-shifting components and is verified per JESD8C/JESD36 specifications.
Can OE0 and OE1 be tied together for single-enable operation?
Yes-OE0 and OE1 may be connected to a common control signal without electrical conflict, as both are active-low inputs with identical threshold and drive requirements. This configuration reduces GPIO usage in space-constrained designs while retaining full 3-state functionality across all eight outputs.
Does the SO20 package support reflow soldering per JEDEC J-STD-020?
Yes-the SOT163-1 (SO20) package is qualified for standard lead-free reflow profiles, including peak temperatures up to 260 °C for 30 seconds. Moisture sensitivity level is MSL3, requiring bake-out if exposed to ambient >30 °C/60% RH for more than 168 hours before assembly.
How does IOFF behavior differ from standard high-impedance mode?
IOFF actively disables output drivers when VCC = 0 V, limiting leakage to ±80 μA and blocking reverse current flow. Standard 3-state mode requires VCC to be present and functional; IOFF provides fail-safe isolation during power sequencing, hot-swap, or brownout conditions where VCC is absent or unstable.
74ALVC541D,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74ALVC541D,112 FAQ
1.How can I place an order for 74ALVC541D,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC541D,112 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 74ALVC541D,112 reliable?
The price and inventory of 74ALVC541D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC541D,112 is usually 5 days.
3.What payment methods are accepted for 74ALVC541D,112?
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74ALVC541D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC541D,112 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 74ALVC541D,112?
For technical support, including 74ALVC541D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC541D,112 requirements.
6.How does Aetrix verify that 74ALVC541D,112 is sourced from the original manufacturer or authorized distributors?
All 74ALVC541D,112 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 74ALVC541D,112 meets industry standards.
7.What is the process for return or replacement of 74ALVC541D,112?
All 74ALVC541D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC541D,112, 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 74ALVC541D,112 part is unused and in its original packaging.
Return procedure for 74ALVC541D,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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