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Nexperia USA Inc. 74VHCT541D,118
- Part No.:
- 74VHCT541D,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74VHCT541D,118.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,916
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Product details
Overview
74VHCT541D,118 from Nexperia is an octal non-inverting 3-state buffer/line driver in SO20 package, operating at 4.5–5.5 V supply with TTL-compatible inputs, 3.5 ns typical propagation delay (VCC = 5 V, CL = 15 pF), and ±8 mA output drive capability. It enables bidirectional bus isolation in industrial control backplanes and legacy microprocessor data buses.
For engineers reviewing the 74VHCT541D,118 datasheet, 74VHCT541D,118 pinout, 74VHCT541D,118 application, or 74VHCT541D,118 equivalent, this device serves as a logic-level translation and bus-driving solution where TTL input compatibility, low static current (<4 μA at 5.5 V), and guaranteed 125 °C operation are required.
Technical Context
The 74VHCT541D,118 implements dual active-LOW output enable controls (OE0 and OE1) to place all eight Y outputs into high-impedance state simultaneously, supporting shared-bus arbitration. Its Schmitt-trigger inputs reject noise on control lines, while input voltage tolerance up to 5.5 V allows interfacing with higher-voltage peripherals without level shifters.
Designed for CMOS-compatible load driving, it delivers rail-to-rail output swing under ±8 mA load with VOL ≤ 0.36 V and VOH ≥ 3.94 V at VCC = 4.5 V, and maintains stable timing across -40 °C to +125 °C ambient range per JEDEC JESD22-A114E (2 kV HBM ESD rating).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V - Ensures reliable operation with standard 5 V TTL/CMOS systems and tolerates 10% rail variation. |
| Propagation Delay | 3.5 ns (typ), 7.0 ns (max) at VCC = 5 V, CL = 15 pF - Enables sub-100 MHz bus clocking with deterministic timing margins. |
| Output Drive | ±8 mA - Sufficient to drive 10 LSTTL loads or 15 pF transmission line stubs without signal degradation. |
| Input Compatibility | TTL-level (VIH = 2.0 V min, VIL = 0.8 V max) - Directly interfaces with legacy 74LS/74ALS families without external biasing. |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood automotive modules, industrial PLC I/O cards, and power supply monitoring circuits. |
| Static Supply Current | 4.0 μA (typ), 80 μA (max) at VCC = 5.5 V - Supports low-power standby modes in battery-backed systems. |
| ESD Rating | HBM > 2000 V - Provides robust handling during PCB assembly and field service without additional protection circuitry. |
Pinout & Package
74VHCT541D,118 uses the SOT163-1 (SO20) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-013 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE0, OE1 | Active-LOW dual enable inputs - Both must be LOW for output pass-through; either HIGH forces all Yn to high-Z. |
| 2–9 | A0–A7 | Non-inverting data inputs - Accept TTL/CMOS logic levels; Schmitt-trigger action rejects <1.0 V noise spikes. |
| 10 | GND | Signal reference ground - Must be connected to system 0 V plane; thermal pad (pin 10) is electrically isolated but may be floated or tied to GND. |
| 11–18 | Y0–Y7 | Buffered outputs - Source/sink ±8 mA, support bus hold when enabled, high-Z impedance > 100 MΩ when disabled. |
| 20 | VCC | Positive supply - Decoupling capacitor (100 nF ceramic) required within 5 mm of pin for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| Balanced propagation delays | tPLH and tPHL match within 0.5 ns - Eliminates skew-induced setup/hold violations in parallel data paths. |
| TTL-compatible input thresholds | VIH = 2.0 V, VIL = 0.8 V at VCC = 4.5–5.5 V - Interoperates directly with 74LS, 74F, and microcontroller GPIOs without level-shifting. |
| High-impedance output control | Two independent OE pins - Enables flexible bus arbitration: one OE can gate half the outputs while the other gates the remainder. |
| Extended temperature range | Rated from -40 °C to +125 °C - Validated for use in motor drives, solar inverters, and railway signaling equipment. |
| Low dynamic power dissipation | CPD = 12 pF - Limits switching power to <1.5 mW per MHz at 5 V, reducing thermal load in dense logic arrays. |
Applications
| Industrial PLC Backplane | Legacy Microprocessor Bus Interface |
|---|---|
|
Use Scenario: Isolating I/O expansion slots from main CPU bus in modular programmable logic controllers. IC Role / Device Role / Timing Role: Octal buffer isolates address/data lines between CPU and peripheral modules; 3-state control prevents bus contention during hot-swap events. Use Value: Dual OE inputs allow staggered enable sequencing to suppress simultaneous switching noise during module insertion. |
Use Scenario: Driving Z80 or 8085 address latches and memory buffers in retro-computing hardware restoration. IC Role / Device Role / Timing Role: Translates TTL-level control signals (RD, WR, IO/M) to CMOS-compatible levels while providing fanout gain. Use Value: 3.5 ns propagation delay ensures full compatibility with 4–6 MHz Z80 clock domains without timing closure issues. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
|
Use Scenario: Level-shifting and buffering sensor interface signals (e.g., door lock actuators, mirror position feedback) in BCM ECUs. IC Role / Device Role / Timing Role: Non-inverting buffer conditions analog switch control lines and digital status flags before routing to MCU GPIOs. Use Value: Guaranteed operation at 125 °C ambient enables placement near power MOSFET drivers without derating. |
Use Scenario: Conditioning DUT control signals in automated test fixtures for mixed-signal IC validation. IC Role / Device Role / Timing Role: Drives multiple DUT input pins simultaneously with matched edge rates and minimal skew. Use Value: Input clamping current rating (±20 mA) protects against transient overvoltage during probe misalignment or fixture faults. |
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 |
|---|---|---|---|
| SN74HCT541PW | Texas Instruments version in TSSOP20; identical electrical specs but different thermal resistance (10.0 mW/K derating above 100 °C vs. 12.3 mW/K for SO20) | Preferred for space-constrained PCBs where 4.4 mm body width is critical; lower thermal mass affects transient power handling | Select if footprint size outweighs thermal margin requirements in compact test fixtures. |
| 74VHC541D,118 | Nexperia's CMOS-input variant; VIH = 3.85 V at VCC = 5.5 V, requiring ≥3.85 V for HIGH recognition vs. 2.0 V for VHCT | Suitable only in pure CMOS systems (e.g., FPGA I/O banks); incompatible with 74LS TTL outputs without pull-ups | Choose only when interfacing exclusively with 3.3 V or 5 V CMOS sources and lowest possible ICC is mandatory. |
Compared with SN74HCT541PW, the 74VHCT541D,118 offers superior thermal stability in high-ambient environments due to SO20's higher thermal mass, while 74VHC541D,118 trades input compatibility for ultra-low static current-making each alternative optimal only under distinct system constraints.
Availability
74VHCT541D,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and legacy microprocessor bus interfaces requiring stable component supply across extended temperature ranges.
Supply support for 74VHCT541D,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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.
The 74VHCT541D,118 belongs to Nexperia's 74VHCT logic family, engineered specifically for seamless integration between legacy TTL systems and modern CMOS-based controllers in harsh-environment industrial and automotive electronics.
FAQ
Can 74VHCT541D,118 operate at 3.3 V supply?
No. The 74VHCT541D,118 is specified only for 4.5–5.5 V operation per Table 5. At 3.3 V, input thresholds (VIH = 2.0 V) become unreliable, and output drive strength drops below specification. Use 74VHC541D,118 for 3.3 V systems, which supports 2.0–5.5 V supply but requires CMOS-level inputs.
What is the maximum capacitive load the outputs can drive reliably?
The outputs are characterized up to 50 pF (Table 7), with propagation delay increasing from 3.5 ns to 8.5 ns at VCC = 5 V. For loads exceeding 50 pF, add series termination resistors (22–33 Ω) near the driver to suppress ringing, and verify timing margins using worst-case tpd and tdis values across temperature.
Is the thermal pad (pin 10) electrically connected to ground?
No. Pin 10 is a mechanical thermal pad with no internal electrical connection (note in Fig. 4). It may be left floating or soldered to a GND pour for improved thermal conduction, but must not be used as a signal return path or connected to any voltage other than GND.
How do OE0 and OE1 interact when driven independently?
Both OE0 and OE1 are active-LOW enables. If either is HIGH, all eight outputs enter high-impedance state regardless of the other's state. Only when both are LOW do outputs Y0–Y7 reflect inputs A0–A7. This provides fail-safe bus isolation: a single open-circuit OE line disables the entire buffer.
74VHCT541D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74VHCT541D,118 FAQ
1.How can I place an order for 74VHCT541D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT541D,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 74VHCT541D,118 reliable?
The price and inventory of 74VHCT541D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT541D,118 is usually 5 days.
3.What payment methods are accepted for 74VHCT541D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT541D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT541D,118?
74VHCT541D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT541D,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 74VHCT541D,118?
For technical support, including 74VHCT541D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT541D,118 requirements.
6.How does Aetrix verify that 74VHCT541D,118 is sourced from the original manufacturer or authorized distributors?
All 74VHCT541D,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 74VHCT541D,118 meets industry standards.
7.What is the process for return or replacement of 74VHCT541D,118?
All 74VHCT541D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT541D,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 74VHCT541D,118 part is unused and in its original packaging.
Return procedure for 74VHCT541D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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