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onsemi MC74VHC541DWR2G
- Part No.:
- MC74VHC541DWR2G
- Manufacturer:
- onsemi
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC74VHC541DWR2G.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,997
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Product details
Overview
MC74VHC541DWR2G from onsemi is an advanced high-speed CMOS octal noninverting 3-state bus buffer with 20-pin SOIC-WB package, 3.7 ns typical propagation delay at 5.0 V, ±25 mA output drive capability, and 2.0–5.5 V supply voltage range. It serves as a level-tolerant interface buffer in 3.3 V/5.0 V mixed-voltage digital systems, enabling bidirectional data routing between microcontrollers and peripheral buses.
For engineers reviewing the MC74VHC541DWR2G datasheet, pinout, applications, or equivalent options, key selection criteria include its dual-output-enable architecture, 5.5 V-tolerant inputs, low-noise dynamic output swing (VOLP ≤ 1.2 V), and compatibility with legacy TTL and modern CMOS logic families.
Technical Context
The MC74VHC541DWR2G implements a three-stage internal buffer structure to ensure high noise immunity (VNIH/VNIL = 28%) and stable output transitions. Its dual independent output-enable inputs (OE1, OE2) allow flexible bus control-either high disables all eight outputs to high-impedance state, supporting shared-bus arbitration.
Input voltage tolerance up to 5.5 V enables safe interfacing between 3 V and 5 V domains without external level shifters. The device features power-down protection and latchup immunity exceeding 100 mA per I/O, meeting industrial reliability requirements across −55 °C to +125 °C operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports wide-input-voltage operation in mixed-rail systems |
| Propagation Delay (tPLH/tPHL) | 3.5 ns (min) / 6.0 ns (max) at VCC = 5.0 V, CL = 50 pF - enables high-speed bus timing in 20+ MHz applications |
| Output Drive Strength | ±8 mA at VCC = 4.5 V - sufficient for driving standard CMOS loads and short PCB traces |
| Input Voltage Tolerance | −0.5 V to +6.5 V - allows safe connection to 5 V signals even when powered from 3.3 V |
| Quiescent Supply Current | 4.0 µA (max) at TA = 25 °C - ensures ultra-low static power in battery-backed or standby modes |
| ESD Withstand Voltage | 2000 V HBM - meets industrial handling robustness requirements without external protection |
| Operating Temperature | −55 °C to +125 °C - qualified for under-hood automotive, industrial control, and harsh-environment use |
Pinout & Package
MC74VHC541DWR2G is housed in a 20-pin SOIC-WB (Wide Body) package per case 751D-05, with 1.27 mm pitch, 12.8 mm × 7.5 mm body size, and Pb-free (RoHS-compliant) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Independent 3-state enable inputs - either high forces all Y outputs into high-Z; both low enable buffered A→Y pass-through |
| 2–9 | A1–A8 | Data inputs - accept 5.5 V-tolerant logic levels regardless of VCC; compatible with TTL and CMOS |
| 10 | GND | Ground reference - must be connected to system ground plane for noise immunity and thermal stability |
| 11–18 | Y1–Y8 | Noninverting buffered outputs - deliver full rail-swing CMOS outputs with ±25 mA sink/source capability |
| 20 | VCC | Positive supply - powers internal logic and output drivers; decoupling capacitor (0.1 µF) required near pin |
Key Features
| Feature | Design Value |
|---|---|
| High-Speed Operation | 3.7 ns typical tPD at 5.0 V - matches bipolar TTL speed while retaining CMOS power efficiency |
| 3-State Output Control | Dual OE pins (OE1/OE2) - enables flexible bus arbitration and eliminates contention in multi-driver systems |
| Voltage-Level Translation | 5.5 V-tolerant inputs with 2.0–5.5 V VCC - permits direct 3.3 V MCU-to-5 V peripheral interfacing without external translators |
| Low-Noise Output | VOLP ≤ 1.2 V (typ) - minimizes ground bounce and signal integrity degradation in dense PCB layouts |
| Robust ESD/Latchup | HBM > 2000 V; latchup immunity > 100 mA - reduces field failure risk in uncontrolled assembly or end-use environments |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating and buffering address/data lines between 3.3 V microcontroller and 5 V legacy CAN transceivers or EEPROMs on a shared backplane bus. IC Role / Device Role / Timing Role: Noninverting 3-state bus buffer providing direction-controlled signal isolation and voltage-level translation. Use Value: Eliminates need for discrete level shifters; supports hot-plug-safe bus arbitration via dual OE control. |
Use Scenario: Driving multiple 5 V sensor inputs (e.g., door lock actuators, mirror controls) from a 3.3 V automotive MCU with strict EMC and temperature requirements. IC Role / Device Role / Timing Role: High-reliability octal buffer ensuring clean signal transmission across wide temperature range and noisy vehicle electrical environment. Use Value: −55 °C to +125 °C operation and 2000 V HBM ESD withstand meet AEC-Q100 stress test thresholds. |
| Medical Diagnostic Equipment Data Bus | Test & Measurement Instrumentation |
Use Scenario: Interfacing FPGA-based acquisition logic (3.3 V I/O) to legacy 5 V ADC/DAC modules in portable ultrasound or ECG front-ends. IC Role / Device Role / Timing Role: Low-skew, low-noise octal buffer preserving signal integrity during high-resolution analog data transfer. Use Value: 1.0 ns max output skew (tOSLH/tOSHL) and VOLP ≤ 1.2 V reduce timing jitter and quantization error. |
Use Scenario: Enabling modular signal routing between 3.3 V digital controllers and 5 V DMM or oscilloscope input conditioning stages in benchtop instruments. IC Role / Device Role / Timing Role: Reconfigurable bus driver supporting multiple instrument configurations via software-controlled OE pins. Use Value: Dual OE architecture allows dynamic reassignment of bus direction without hardware changes or layout modifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC541APWR | 3.3 V only supply (1.65–3.6 V); lower drive (±24 mA); no 5.5 V input tolerance | Suitable only for pure 3.3 V systems; cannot interface 5 V peripherals directly | Select when cost and footprint are prioritized over mixed-voltage flexibility |
| 74VHC541M | Same VHC family, identical specs, but in PDIP-20 package (not surface-mount) | Used in prototyping or through-hole production; lacks SOIC-WB thermal and density advantages | Select for breadboard evaluation or legacy through-hole assembly lines |
Compared with SN74LVC541APWR and 74VHC541M, the MC74VHC541DWR2G uniquely combines 2.0–5.5 V operation, 5.5 V-tolerant inputs, and SOIC-WB packaging-making it the only choice for space-constrained, mixed-voltage industrial or automotive bus interfaces requiring drop-in reliability.
Availability
MC74VHC541DWR2G is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, medical diagnostic equipment data buses, and test & measurement instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74VHC541DWR2G 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 manufacturer specializing in energy-efficient, high-reliability components for automotive, industrial, and cloud infrastructure applications.
The MC74VHC541DWR2G belongs to the VHC logic family, designed specifically for high-speed, low-power, mixed-voltage digital interfacing in mission-critical embedded systems where signal integrity and wide operating margins are essential.
FAQ
What is the maximum operating temperature for MC74VHC541DWR2G?
The MC74VHC541DWR2G is rated for continuous operation from −55 °C to +125 °C, making it suitable for under-hood automotive, industrial control, and outdoor equipment applications. This rating is verified per JEDEC JESD78 Class II latchup testing and confirmed in the official onsemi datasheet revision 11.
Does MC74VHC541DWR2G support 5 V logic inputs when powered from 3.3 V?
Yes, MC74VHC541DWR2G inputs tolerate voltages up to 5.5 V regardless of VCC level. When powered from 3.3 V, it safely accepts 5 V TTL or CMOS inputs-enabling direct interfacing between 3.3 V microcontrollers and legacy 5 V peripherals without external level shifters.
Can MC74VHC541DWR2G replace MC74VHCT541ADWR2G in a design?
No-MC74VHC541DWR2G has CMOS-compatible inputs (VIH = 0.7×VCC), while MC74VHCT541ADWR2G uses TTL-compatible inputs (VIH = 2.0 V). Substituting them requires verifying input threshold compatibility; mismatch may cause logic errors in 5 V systems with marginal noise margins.
What is the recommended decoupling for MC74VHC541DWR2G?
A 0.1 µF ceramic capacitor placed as close as possible to the VCC (pin 20) and GND (pin 10) terminals is required. For systems with high-frequency switching or multiple buffers, add a 4.7 µF bulk capacitor nearby to suppress low-frequency supply ripple and maintain stable output drive performance.
Is MC74VHC541DWR2G pin-compatible with standard 74-series octal buffers?
Yes-MC74VHC541DWR2G is functionally and pin-compatible with industry-standard 74LS541, 74ALS541, and 74F541 devices in the same SOIC-20 package. Pin assignments for A1–A8, Y1–Y8, OE1/OE2, VCC, and GND match exactly, enabling drop-in upgrades with improved speed and power efficiency.
MC74VHC541DWR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MC74VHC541DWR2G FAQ
1.How can I place an order for MC74VHC541DWR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC541DWR2G 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 MC74VHC541DWR2G reliable?
The price and inventory of MC74VHC541DWR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC541DWR2G is usually 5 days.
3.What payment methods are accepted for MC74VHC541DWR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC541DWR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC541DWR2G?
MC74VHC541DWR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC541DWR2G 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 MC74VHC541DWR2G?
For technical support, including MC74VHC541DWR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC541DWR2G requirements.
6.How does Aetrix verify that MC74VHC541DWR2G is sourced from the original manufacturer or authorized distributors?
All MC74VHC541DWR2G 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 MC74VHC541DWR2G meets industry standards.
7.What is the process for return or replacement of MC74VHC541DWR2G?
All MC74VHC541DWR2G units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC541DWR2G, 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 MC74VHC541DWR2G part is unused and in its original packaging.
Return procedure for MC74VHC541DWR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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