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Nexperia USA Inc. 74HC541PW,118
- Part No.:
- 74HC541PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC541PW,118.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:98,257
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Product details
Overview
74HC541PW,118 from Nexperia is an octal non-inverting 3-state buffer/line driver in TSSOP20 package, operating from 2.0 V to 6.0 V supply, featuring dual active-low output enables (OE1, OE2), CMOS-level inputs, and ±35 mA output drive capability. It is used for bidirectional bus interfacing, address/data latching, and logic-level translation in industrial control and embedded I/O expansion.
For engineers reviewing the 74HC541PW,118 datasheet, 74HC541PW,118 pinout, 74HC541PW,118 application, or 74HC541PW,118 equivalent, key selection criteria include propagation delay (10–35 ns at VCC = 4.5–6.0 V), 3-state enable/disable timing (16–48 ns), input voltage thresholds (VIH = 1.5 V min at VCC = 2.0 V), output drive strength, and thermal derating behavior above 100 °C.
Technical Context
This device implements eight identical non-inverting buffer circuits with independent 3-state control via two active-low enables. Each output enters high-impedance state when either OE1 or OE2 is HIGH, enabling flexible bus arbitration in multi-driver systems.
It supports wide-voltage operation (2.0–6.0 V) with CMOS-compatible input thresholds and delivers rail-to-rail output swing under load. Input clamp diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - Enables direct interface with 3.3 V and 5 V logic domains without level shifters. |
| Propagation Delay | 10 ns (typ) at VCC = 6.0 V - Supports high-speed data transfer in 20–30 MHz bus applications. |
| Output Drive | ±35 mA - Sufficient to drive multiple TTL loads or terminate short PCB traces without external buffers. |
| Input Thresholds | VIH = 1.5 V (min) at VCC = 2.0 V - Ensures reliable logic HIGH detection across full supply range. |
| 3-State Enable Time | 16 ns (typ) at VCC = 6.0 V - Minimizes bus contention window during output activation. |
| Operating Temperature | −40 °C to +125 °C - Qualified for extended industrial and under-hood environments. |
| Power Dissipation | 500 mW (max) - Derates linearly at 10.0 mW/K above 100 °C in TSSOP20 package. |
Pinout & Package
TSSOP20 (SOT360-1) package: 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, surface-mount, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output enable inputs - Either HIGH forces all Yn outputs into high-impedance state. |
| 2–9 | A0–A7 | Data inputs - Non-inverting inputs driving corresponding Y0–Y7 outputs. |
| 10 | GND | Ground reference - Must be low-impedance connection to minimize noise coupling and ensure stable logic thresholds. |
| 11–18 | Y0–Y7 | Data outputs - 3-state buffered outputs with rail-to-rail swing and ±35 mA drive capability. |
| 20 | VCC | Supply voltage - Decoupling capacitor (100 nF) required within 5 mm of this pin for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2.0 V to 6.0 V - Eliminates need for separate voltage regulators in mixed-supply systems. |
| Dual Output Enables | OE1 and OE2 - Enables hierarchical bus control (e.g., chip-select + write-enable gating). |
| High Noise Immunity | Typical VIH/VIL hysteresis > 0.5 V - Reduces susceptibility to ground bounce and EMI in noisy industrial environments. |
| Input Clamp Diodes | Integrated - Allows safe interfacing to signals up to VCC + 0.5 V using series current-limiting resistors. |
| Latch-Up Robustness | >100 mA per JESD78 Class II Level B - Prevents destructive latch-up during transient overvoltage events. |
Applications
| Industrial PLC I/O Expansion | Microcontroller Bus Buffering |
|---|---|
|
Use Scenario: Isolating and driving parallel I/O lines between a microcontroller and modular I/O cards in programmable logic controllers. IC Role / Device Role / Timing Role: Octal non-inverting buffer with 3-state control acts as bi-directional bus isolator, enabling dynamic assignment of address/data lines to different peripheral modules. Use Value: Dual OE inputs allow synchronized enable/disable of all eight outputs, preventing bus contention during module hot-swap or configuration changes. |
Use Scenario: Expanding GPIO count on resource-constrained MCUs by connecting parallel peripherals (e.g., LCD controllers, ADCs, memory-mapped sensors). IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer that translates MCU logic levels to peripheral requirements while maintaining signal integrity across 10–15 cm PCB traces. Use Value: 10 ns propagation delay and 16 ns enable time ensure timing-critical peripherals meet setup/hold windows without added wait states. |
| Legacy System Interface Adapter | Test Equipment Signal Conditioning |
|
Use Scenario: Bridging modern 3.3 V microcontrollers to legacy 5 V parallel interfaces (e.g., printers, industrial sensors, EPROM programmers). IC Role / Device Role / Timing Role: Voltage-tolerant buffer with CMOS inputs and rail-swing outputs serves as unidirectional level translator and drive booster. Use Value: Input clamp diodes and 6 V absolute max rating permit safe 5 V input signaling even when VCC = 3.3 V, eliminating external protection components. |
Use Scenario: Driving multiple test points or calibration DACs from a single digital pattern generator channel in automated test equipment. IC Role / Device Role / Timing Role: Precision-controlled 3-state driver ensures clean signal routing without crosstalk or loading effects during multiplexed stimulus delivery. Use Value: Low output leakage (< ±0.5 μA off-state) prevents unintended biasing of high-impedance DUT inputs during inactive periods. |
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 |
|---|---|---|---|
| 74HCT541PW,118 | TTL-compatible inputs (VIH = 2.0 V min), same pinout and timing - requires ≥4.5 V supply for guaranteed compatibility with legacy 5 V TTL sources. | Better suited for mixed 5 V TTL/CMOS systems where input noise margins must match standard TTL thresholds. | Select when interfacing directly to 5 V TTL outputs or legacy logic families requiring VIH ≥ 2.0 V. |
| SN74LVC541APWR | Lower VCC range (1.65–3.6 V), 32 mA drive, 3.3 V only - not compatible with 5 V operation or 6 V absolute max ratings. | Optimized for ultra-low-power portable and battery-operated systems with strict 3.3 V domain constraints. | Choose only for 3.3 V-only designs requiring lower ICC (10 μA typical) and smaller footprint (TSSOP20 same, but lower thermal mass). |
Compared with 74HC541PW,118, the 74HCT541PW,118 offers superior TTL input compatibility at higher supply voltages, while SN74LVC541APWR reduces static power and fits tighter 3.3 V margins - neither matches the 2.0–6.0 V flexibility or 6 V absolute max rating of the HC variant.
Availability
74HC541PW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller bus buffering, legacy system interface adapters, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74HC541PW,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, analog, and MOSFET solutions with focus on reliability, efficiency, and sustainability in industrial, automotive, and consumer applications.
The 74HC541 belongs to Nexperia's high-speed CMOS logic family designed for robust, low-power, wide-supply-range interfacing in demanding industrial and embedded control systems.
FAQ
What is the maximum clock frequency supported by 74HC541PW,118?
The 74HC541PW,118 is not a clocked device-it has no internal clock and operates asynchronously. Its usable data rate depends on propagation delay (10–35 ns) and system timing margins; for clean 20 MHz parallel bus operation, it meets setup/hold requirements with appropriate PCB layout and termination.
Can 74HC541PW,118 drive LEDs directly?
No-its outputs are designed for logic-level interfacing, not current sourcing/sinking for LEDs. While it can source/sink ±35 mA per pin, sustained LED drive risks exceeding total package power dissipation (500 mW) and violates recommended operating conditions for continuous DC output loading.
Is there a pin-compatible 74HC541 variant with integrated ESD protection beyond HBM 2000 V?
No-the 74HC541PW,118 already complies with ANSI/ESDA/JEDEC JS-001 Class 2 (HBM ≥ 2000 V) and JS-002 Class C3 (CDM ≥ 1000 V). Nexperia does not offer a pin-compatible revision with enhanced ESD ratings; system-level protection remains the recommended approach for harsh ESD environments.
Does 74HC541PW,118 support hot insertion in backplane applications?
Not inherently-its inputs lack live-insertion protection circuitry. While input clamp diodes tolerate brief overvoltage, uncontrolled hot insertion may cause supply rail disturbance or ground bounce. Use with controlled power sequencing, pre-charge resistors, and bus isolation ICs is required for safe backplane use.
74HC541PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74HC541PW,118 FAQ
1.How can I place an order for 74HC541PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC541PW,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 74HC541PW,118 reliable?
The price and inventory of 74HC541PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC541PW,118 is usually 5 days.
3.What payment methods are accepted for 74HC541PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC541PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC541PW,118?
74HC541PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC541PW,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 74HC541PW,118?
For technical support, including 74HC541PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC541PW,118 requirements.
6.How does Aetrix verify that 74HC541PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HC541PW,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 74HC541PW,118 meets industry standards.
7.What is the process for return or replacement of 74HC541PW,118?
All 74HC541PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC541PW,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 74HC541PW,118 part is unused and in its original packaging.
Return procedure for 74HC541PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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