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Nexperia USA Inc. 74ALVC541D,118
- Part No.:
- 74ALVC541D,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ALVC541D,118.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
74ALVC541D,118 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 ≤3.5 ns propagation delay at 3.3 V in SO20 package - used in bus interface isolation and level translation between mixed-voltage logic domains.
For engineers reviewing the 74ALVC541D,118 datasheet, 74ALVC541D,118 pinout, 74ALVC541D,118 application, or 74ALVC541D,118 equivalent, key selection criteria include dual-OE control timing, IOFF-enabled hot-swap compatibility, Schmitt-trigger input hysteresis, and guaranteed 125 °C operation in industrial PLC backplanes and sensor hub I/O expanders.
Technical Context
This device implements eight independent non-inverting buffers, each with separate output enable control via OE0 (pins 1 & 19) - enabling grouped 4-bit channel control. The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down sequences in multi-rail systems.
Schmitt-trigger inputs provide ≥0.35 V hysteresis at 3.3 V, tolerating slow-rising signals from mechanical switches or legacy TTL sources. Input voltage tolerance up to 3.6 V allows direct interfacing with 3.3 V or 5 V-tolerant controllers without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 3.6 V - enables direct use with 1.8 V, 2.5 V, 3.3 V logic rails without regulators. |
| Propagation Delay (tpd) | ≤3.5 ns at VCC = 3.0–3.6 V - supports >100 MHz bus toggle rates in high-speed data paths. |
| IOFF Leakage Current | ±10 μA max at VCC = 0 V - prevents damaging back-current during hot-insertion or rail sequencing. |
| Input Hysteresis | ≥0.35 V at VCC = 3.3 V - rejects noise on long traces or unshielded sensor lines. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - drives 50 pF loads with <10% overshoot, suitable for stubbed PCB buses. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive ECUs and industrial motor drives. |
| ESD Protection | HBM >2000 V, CDM >1000 V - survives handling and board-level ESD events without shielding. |
Pinout & Package
74ALVC541D,118 uses SOT163-1 (SO20) package: plastic small outline, 20 leads, 7.5 mm body width, 1.27 mm lead pitch, gull-wing terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE0, OE1 | Active-low output enable inputs - independently disable first four (Y0–Y3) and last four (Y4–Y7) outputs. |
| 2–9 | A0–A7 | Buffer input terminals - Schmitt-triggered for noise margin; tolerate 0–3.6 V regardless of VCC. |
| 10 | GND | Ground reference - decoupling capacitor must be placed within 5 mm for stable 3.3 V switching. |
| 11–18 | Y0–Y7 | 3-state buffered outputs - high-impedance when either OE is HIGH; drive ±24 mA in active state. |
| 20 | VCC | Power supply - requires local 100 nF ceramic bypass capacitor; IOFF remains active even if VCC = 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent output enables | OE0 controls Y0–Y3; OE1 controls Y4–Y7 - enables selective bus segment isolation in modular I/O systems. |
| IOFF partial power-down | Outputs disabled and leakage limited to ±10 μA when VCC = 0 V - essential for hot-plug PCIe carrier boards and field-replaceable modules. |
| Schmitt-trigger inputs | Input hysteresis ≥0.35 V at 3.3 V - eliminates contact bounce errors from limit switches and encoder quadrature signals. |
| Overvoltage-tolerant inputs | Accepts 0–3.6 V inputs irrespective of VCC setting - permits direct connection to 3.3 V microcontrollers driving 1.8 V FPGA banks. |
| JEDEC-compliant voltage ranges | Valid across JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.5 V), and JESD8C/JESD36 (2.7–3.6 V) - ensures interoperability across legacy and modern logic families. |
Applications
| Industrial PLC Backplane | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating I/O expansion slots from main controller bus during firmware updates. IC Role / Device Role / Timing Role: Octal buffer provides direction-controlled signal pass-through with dual OE pins enabling per-slot reset sequencing. Use Value: IOFF prevents backfeed into powered-down slot controllers; Schmitt inputs reject EMI from nearby solenoid drivers. |
Use Scenario: Interfacing 12 V switch inputs to 3.3 V microcontroller GPIOs in door module assemblies. IC Role / Device Role / Timing Role: Level translator and noise filter - converts debounced switch signals while rejecting alternator ripple. Use Value: 3.6 V-tolerant inputs eliminate external resistive dividers; 125 °C rating matches under-dash thermal environment. |
| Medical Sensor Hub | Test Equipment Digital I/O Card |
|
Use Scenario: Aggregating analog sensor ADC outputs onto shared SPI bus with multiple slave select lines. IC Role / Device Role / Timing Role: Bus driver isolates ADC data lanes from master controller; dual OE supports staggered readout timing. Use Value: ≤3.5 ns tpd ensures setup/hold compliance at 25 MHz SPI clock; low ICC (≤10 μA) extends battery life. |
Use Scenario: Providing programmable digital stimulus and capture channels in automated test fixtures. IC Role / Device Role / Timing Role: Bidirectional buffer with 3-state control - routes DUT signals to measurement ASICs or pattern generators. Use Value: Dual OE allows simultaneous enable/disable of stimulus and capture groups; ±24 mA drive handles 50 Ω coaxial loads. |
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 pin (no OE0/OE1 split); identical VCC range and speed. | Lacks per-half-bus enable control - unsuitable for segmented bus arbitration. | Select when simplified enable logic suffices and cost is prioritized over granular control. |
| 74LVC541AD,118 | Same pinout and function but rated only to +85 °C; lower ESD (HBM 2 kV vs. 2.5 kV). | Not qualified for extended temperature industrial or automotive under-hood use. | Choose only for commercial-grade applications where 125 °C operation is unnecessary. |
Compared with SN74LVC541APWR and 74LVC541AD,118, the 74ALVC541D,118 uniquely supports independent 4-bit group control and full 125 °C operation - critical for fault-tolerant bus architectures requiring thermal resilience and phased enable sequencing.
Availability
74ALVC541D,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, medical sensor hubs, and test equipment digital I/O cards requiring stable component supply across extended temperature and mixed-voltage environments.
Supply support for 74ALVC541D,118 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, discrete, and MOSFET solutions - delivering energy-efficient, robust components for industrial, automotive, and computing markets.
The 74ALVC family targets advanced low-voltage bus interface applications, emphasizing partial power-down safety, wide supply flexibility, and noise-immune signal conditioning in space-constrained designs.
FAQ
Can 74ALVC541D,118 interface directly with 5 V logic inputs?
No - inputs tolerate up to 3.6 V absolute maximum, not 5 V. Connecting to 5 V sources risks permanent damage. Use a dedicated level shifter like TXS0108E or resistor-divider network with current limiting for 5 V compatibility.
What is the minimum load capacitance this device can drive reliably?
The device is characterized down to 30 pF (per Table 9 at 1.65–2.7 V). For loads below 30 pF, propagation delay decreases slightly but output rise/fall times remain monotonic; no instability or ringing occurs due to CMOS output structure.
Does IOFF functionality require external pull-up or pull-down resistors?
No - IOFF is fully internal and active when VCC = 0 V, regardless of OE pin states or input voltages. No external biasing is needed; outputs enter high-impedance state automatically during power loss.
How does Schmitt-trigger input hysteresis vary with supply voltage?
Hysteresis scales with VCC: ≥0.35 × VCC at 1.65–1.95 V, ≥0.7 V at 2.3–2.7 V, and ≥0.8 V at 2.7–3.6 V (per Table 6). This ensures consistent noise margin across all supported supply rails without recalibration.
74ALVC541D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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,118 FAQ
1.How can I place an order for 74ALVC541D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC541D,118 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,118 reliable?
The price and inventory of 74ALVC541D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC541D,118 is usually 5 days.
3.What payment methods are accepted for 74ALVC541D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC541D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVC541D,118?
74ALVC541D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC541D,118 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,118?
For technical support, including 74ALVC541D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC541D,118 requirements.
6.How does Aetrix verify that 74ALVC541D,118 is sourced from the original manufacturer or authorized distributors?
All 74ALVC541D,118 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,118 meets industry standards.
7.What is the process for return or replacement of 74ALVC541D,118?
All 74ALVC541D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC541D,118, 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,118 part is unused and in its original packaging.
Return procedure for 74ALVC541D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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