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Nexperia USA Inc. 74VHCT541PW,118
- Part No.:
- 74VHCT541PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74VHCT541PW,118.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
74VHCT541PW,118 from Nexperia is an octal non-inverting 3-state buffer/line driver in TSSOP20 package, operating at 4.5 V to 5.5 V supply, with TTL-compatible inputs, propagation delay ≤7.0 ns (CL = 50 pF), and output drive capability of ±8 mA. It enables bidirectional bus isolation in industrial control backplanes and microcontroller peripheral expansion interfaces.
For engineers reviewing the 74VHCT541PW,118 datasheet, 74VHCT541PW,118 pinout, 74VHCT541PW,118 application, or 74VHCT541PW,118 equivalent, key selection criteria include TTL-level input compatibility, 3-state dual enable control (OE0/OE1), guaranteed operation from –40 °C to +125 °C, and low dynamic power dissipation (CPD = 12 pF).
Technical Context
This device implements eight independent non-inverting buffers, each with high-impedance outputs controlled by two active-low enable inputs (OE0 and OE1). Both enables must be LOW for output transparency; either HIGH forces all Yn outputs into high-impedance state.
It uses Si-gate CMOS technology with Schmitt-trigger inputs, supports input voltages up to 5.5 V regardless of VCC, and features ESD protection exceeding 2000 V HBM - enabling robust operation in noisy industrial environments with mixed-voltage signal routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VCC) | 4.5 V to 5.5 V - ensures compatibility with 5 V TTL logic systems and stable operation across industrial temperature range. |
| Input threshold (VIH/VIL) | VIH ≥ 2.0 V, VIL ≤ 0.8 V - guarantees reliable recognition of standard TTL logic levels at VCC = 4.5–5.5 V. |
| Propagation delay (tpd) | ≤ 7.0 ns @ CL = 50 pF, VCC = 5 V - supports data rates up to ~70 MHz in buffered address/data paths. |
| Output drive (IO) | ±8.0 mA - sufficient to drive 50 pF loads with <10 ns edge times and interface with standard CMOS/TTL inputs. |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood, motor control, and industrial PLC applications without derating. |
| Power dissipation capacitance (CPD) | 12 pF - enables accurate dynamic power estimation: PD = CPD × VCC² × fi × N. |
| ESD rating (HBM) | ≥ 2000 V - exceeds IEC 61000-4-2 Level 2 requirements for system-level ESD immunity. |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-lead, body width 4.4 mm, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE0) | Active-low output enable | Controls Y0–Y7; LOW enables outputs, HIGH forces high-impedance state - used for bus arbitration. |
| 2–9 (A0–A7) | Data inputs | Non-inverting inputs accepting TTL/CMOS logic; Schmitt-trigger action rejects noise on slow-rising signals. |
| 10 (GND) | Ground reference | 0 V return path for all internal circuitry and output current sinking - must be low-inductance connection. |
| 11–18 (Y7–Y0) | Data outputs | 3-state buffered outputs; drive strength ±8 mA; compatible with 5 V CMOS/TTL fan-out requirements. |
| 19 (OE1) | Active-low output enable | Second enable input; both OE0 and OE1 must be LOW for output activation - provides dual-control redundancy. |
| 20 (VCC) | Supply voltage | Primary power rail (4.5–5.5 V); decoupling capacitor (100 nF) required within 5 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates need for level shifters when interfacing with legacy 5 V microcontrollers. |
| Dual active-low output enables | OE0 and OE1 both required LOW for output assertion - enables fail-safe bus control and hierarchical enable schemes. |
| High-noise-immunity inputs | Schmitt-trigger action with hysteresis ≥ 0.5 V - suppresses glitches on long traces or in electrically noisy enclosures. |
| Extended temperature operation | Specified from –40 °C to +125 °C - supports deployment in motor drives, power supplies, and automotive under-hood modules. |
| Low dynamic power consumption | CPD = 12 pF - reduces switching power by >20% vs. older 74LS541 in high-frequency bus applications. |
Applications
| Industrial Backplane Buffering | Microcontroller Peripheral Expansion |
|---|---|
|
Use Scenario: Isolating and driving address/data lines between a main controller and multiple I/O modules on a DIN-rail mounted PLC backplane. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control, synchronizing data flow during slot-select cycles and preventing bus contention. Use Value: Dual OE inputs allow per-slot enable sequencing; ±8 mA drive sustains signal integrity over 15 cm ribbon cable runs at 20 MHz. |
Use Scenario: Expanding GPIO count of an ARM Cortex-M4 MCU by interfacing parallel LCD controller, keypad matrix, and sensor ADC interface. IC Role / Device Role / Timing Role: Level-translating buffer that accepts MCU's 3.3 V logic while driving 5 V peripherals, with precise timing control via OE pins. Use Value: TTL-compatible inputs eliminate external translators; 7 ns max tpd ensures setup/hold compliance for 40 MHz pixel clock domains. |
| Test Equipment Signal Routing | Programmable Logic Interface |
|
Use Scenario: Multiplexing digital stimulus signals from FPGA-based pattern generators to DUT test points in automated bench test fixtures. IC Role / Device Role / Timing Role: Bidirectional bus driver enabling reconfigurable signal path selection under firmware control via OE0/OE1. Use Value: High-impedance OFF-state (< ±0.25 μA IOZ) prevents loading of unused channels; 2000 V HBM withstands ESD events during probe contact. |
Use Scenario: Interfacing CPLD configuration data lines (e.g., Xilinx XC9500XL) to external PROM and JTAG boundary-scan circuitry. IC Role / Device Role / Timing Role: Glue logic buffer ensuring clean signal edges and proper voltage translation between 3.3 V CPLD I/O and 5 V configuration memory. Use Value: Input voltage tolerance up to 5.5 V allows safe connection to 5 V PROM outputs without clamping diodes; 12 pF CPD minimizes jitter in programming clocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC541APW,118 | Lower VCC range (1.65–3.6 V), CMOS-input only, 3.3 V native operation | Not suitable for 5 V TTL systems; requires level shifting if interfacing with 5 V peripherals | Select when full system operates at 3.3 V and lowest static power (ICC < 1 μA) is critical |
| SN74HCT541PWR | Same 5 V TTL compatibility, SOIC-20 package (7.5 mm width), higher ICC (max 80 μA) | Larger footprint; less suitable for space-constrained PCBs but easier hand-soldering and probing | Select when board layout prioritizes manufacturability over density, or when SOIC is required for legacy assembly lines |
Compared with 74LVC541APW,118 and SN74HCT541PWR, the 74VHCT541PW,118 uniquely balances 5 V TTL interoperability, TSSOP20 space efficiency, and –40 °C to +125 °C operation - making it optimal for compact, high-reliability industrial controllers where mixed-voltage signal integrity is essential.
Availability
74VHCT541PW,118 is available at Aetrix Electronics and suitable for industrial automation backplanes, microcontroller peripheral expansion, test equipment signal routing, and programmable logic interface applications requiring stable component supply across extended temperature ranges.
Supply support for 74VHCT541PW,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 optimized for efficiency, reliability, and miniaturization in industrial and automotive applications.
The 74VHCT series targets robust, drop-in replacements for legacy 74HCT logic in high-noise, wide-temperature environments - emphasizing ESD resilience, input overvoltage tolerance, and consistent timing across voltage and temperature extremes.
FAQ
Can 74VHCT541PW,118 operate with a 3.3 V supply?
No. The 74VHCT541PW,118 is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) require minimum 4.5 V VCC to guarantee correct logic interpretation. For 3.3 V systems, use the 74LVC541APW,118 instead.
What is the function of the dual OE inputs (OE0 and OE1)?
Both OE0 (pin 1) and OE1 (pin 19) are active-low enables. All eight outputs (Y0–Y7) enter high-impedance state if either OE is HIGH. Outputs are driven only when both OE0 and OE1 are LOW - providing redundant control for fault-tolerant bus arbitration and hierarchical enable architectures.
Is the exposed thermal pad on the TSSOP20 package electrically connected?
No. The exposed pad on SOT360-1 (TSSOP20) is not electrically connected to any internal node. Per Nexperia documentation, it may remain floating or be connected to GND for thermal enhancement - but no electrical requirement exists for soldering or grounding it.
How does the Schmitt-trigger input improve noise immunity?
The Schmitt-trigger action provides hysteresis (~0.5 V typical) between VIH and VIL thresholds, preventing multiple output transitions caused by slow-rising or noisy input signals. This eliminates false triggering on long PCB traces or in electrically noisy industrial cabinets without requiring external RC filtering.
74VHCT541PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- 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:
- 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-TSSOP
74VHCT541PW,118 FAQ
1.How can I place an order for 74VHCT541PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT541PW,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 74VHCT541PW,118 reliable?
The price and inventory of 74VHCT541PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT541PW,118 is usually 5 days.
3.What payment methods are accepted for 74VHCT541PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT541PW,118 transactions.
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4.How is shipping managed for 74VHCT541PW,118?
74VHCT541PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT541PW,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 74VHCT541PW,118?
For technical support, including 74VHCT541PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT541PW,118 requirements.
6.How does Aetrix verify that 74VHCT541PW,118 is sourced from the original manufacturer or authorized distributors?
All 74VHCT541PW,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 74VHCT541PW,118 meets industry standards.
7.What is the process for return or replacement of 74VHCT541PW,118?
All 74VHCT541PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT541PW,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 74VHCT541PW,118 part is unused and in its original packaging.
Return procedure for 74VHCT541PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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