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Nexperia USA Inc. 74HC541PW,112
- Part No.:
- 74HC541PW,112
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC541PW,112.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,659
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Product details
Overview
74HC541PW,112 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 input levels, and guaranteed operation from –40 °C to +125 °C - used for bidirectional bus interfacing and address/data line driving in industrial control logic.
For engineers reviewing the 74HC541PW,112 datasheet, 74HC541PW,112 pinout, 74HC541PW,112 application, or 74HC541PW,112 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), output drive capability (±6 mA at VCC = 4.5 V), and thermal derating behavior above 100 °C.
Technical Context
This device implements eight identical non-inverting buffer circuits with independent high-impedance control via two active-low enables. Each output enters high-Z when either OE1 or OE2 is HIGH, enabling flexible bus arbitration in multi-driver systems.
Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Static characteristics include VIH = 1.5 V (min) at VCC = 2.0 V and VOH = 3.98 V (min) at IO = –6.0 mA and VCC = 4.5 V, ensuring robust noise margin across voltage ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing including 3.3 V and 5 V logic domains |
| Propagation Delay (tpd) | 10 ns (typ) at VCC = 6.0 V, CL = 50 pF - ensures sub-100 MHz bus timing compliance |
| Output Drive Strength | ±6.0 mA (min) at VCC = 4.5 V - sufficient to drive standard TTL loads and 50 pF transmission lines |
| Enable/Disable Time (ten/tdis) | 16–48 ns (max) - enables fast bus turnaround in time-critical multiplexed data paths |
| Operating Temperature | –40 °C to +125 °C - qualified for extended industrial and under-hood applications |
| Input Leakage Current | ±0.1 μA (max) at VCC = 6.0 V - minimizes static power draw in battery-backed or low-power hold states |
| Power Dissipation Cap. | 37 pF (CPD) - enables accurate dynamic power estimation using PD = CPD × VCC² × fi × N |
Pinout & Package
TSSOP20 (SOT360-1) package: 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output enable inputs - either HIGH forces all eight outputs into high-impedance state |
| 2–9 | A0–A7 | Non-inverting data inputs - directly routed to corresponding Y outputs when both OEs are LOW |
| 10 | GND | Ground reference - must be connected to system 0 V plane with low-inductance path for noise immunity |
| 11–18 | Y0–Y7 | 3-state buffered outputs - present inverted logic only if external inversion is added; otherwise true non-inverting |
| 20 | VCC | Positive supply - requires local 100 nF ceramic decoupling capacitor placed within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 2.0 V to 6.0 V operation enables direct interface between 3.3 V microcontrollers and 5 V peripherals without level shifters |
| CMOS low power | ICC ≤ 8.0 μA (typ) at VCC = 6.0 V - reduces quiescent current in always-on control subsystems |
| High noise immunity | VIH/VIL thresholds defined across full VCC range ensure >40% noise margin at 5 V and >30% at 2 V |
| ESD protection | HBM > 2000 V, CDM > 1000 V - eliminates need for external ESD protection on board-level I/O traces |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events |
Applications
| Industrial PLC Backplane Interface | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Driving parallel address/data buses between CPU module and I/O expansion cards in modular PLC chassis. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating CPU bus from multiple peripheral modules; enables time-multiplexed access via OE1/OE2 sequencing. Use Value: 10 ns propagation delay and 16 ns enable time support 50 MHz bus clocking; ±6 mA drive sustains signal integrity over 15 cm backplane traces. | Use Scenario: Expanding limited GPIO count of ARM Cortex-M0+ MCU to control 8-channel relay bank and status LEDs. IC Role / Device Role / Timing Role: Logic-level translation and fanout buffer - accepts 3.3 V MCU outputs and drives 5 V relay coils and LED anodes. Use Value: 2.0–6.0 V supply range allows direct 5 V VCC connection while accepting 3.3 V inputs; dual OE pins simplify software-controlled channel grouping. |
| Legacy Parallel Printer Interface | Test Equipment Signal Conditioning |
Use Scenario: Interfacing modern embedded controller to Centronics-style parallel printer port requiring TTL-compatible 5 V signaling. IC Role / Device Role / Timing Role: Bidirectional bus driver with tristate control - buffers data lines (D0–D7) and handshaking signals (STROBE, ACK) under firmware control. Use Value: Guaranteed 5 V operation with VIH = 2.0 V (74HCT variant compatible) and VOL ≤ 0.26 V ensures reliable recognition by legacy printer ICs. | Use Scenario: Isolating DUT signals from test instrumentation during automated functional testing of digital boards. IC Role / Device Role / Timing Role: Unidirectional signal conditioner - buffers and directionally gates test vectors onto DUT inputs while preventing back-drive during fault injection. Use Value: High-impedance OFF-state leakage < ±5 μA prevents loading of sensitive analog nodes; 125 °C rating supports operation inside heated test chambers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal non-inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT541PW,112 | TTL-compatible inputs (VIH = 2.0 V min at VCC = 5 V); identical pinout and timing | Required when driving from legacy 5 V TTL sources or mixed-signal systems with 5 V logic families | Select when interfacing to 5 V-only controllers lacking CMOS-level output swing |
| SN74LVC541APWR | Lower VCC range (1.65–3.6 V); 3.3 V only; higher speed (tpd = 5.2 ns typ at 3.3 V) | Suitable for modern low-voltage FPGA/CPU I/O expansion but incompatible with 5 V buses | Choose for 3.3 V domain applications where speed > power trade-off favors LVC family |
Compared with 74HC541PW,112, the 74HCT541PW,112 offers better compatibility with 5 V TTL sources but shares identical thermal and packaging specs, while SN74LVC541APWR delivers faster switching at lower voltage but cannot operate above 3.6 V - making it unsuitable for mixed-voltage or legacy 5 V systems.
Availability
74HC541PW,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, microcontroller GPIO expansion, legacy parallel interfaces, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74HC541PW,112 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, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization for industrial and automotive markets.
The 74HC series targets general-purpose logic applications demanding wide supply range, low static power, and robust noise immunity - designed specifically for industrial control, instrumentation, and legacy interface bridging where voltage flexibility and thermal resilience are critical.
FAQ
What is the maximum clock frequency supported by 74HC541PW,112 in a data bus application?
The 74HC541PW,112 does not operate on a clock; it is asynchronous. Its usable data rate depends on propagation delay (10–35 ns) and system setup/hold margins. With 20 ns tpd and 5 ns margins, it reliably supports bus toggle rates up to ~20 MHz in point-to-point configurations. For longer traces or stubs, signal integrity analysis is required.
Can OE1 and OE2 be tied together for single-enable operation?
Yes - OE1 and OE2 can be connected to a common control signal. The functional table confirms that a HIGH on either enable forces all outputs to high-Z. This simplifies PCB routing and firmware control when independent enable control is unnecessary, with no impact on timing or drive strength.
Is 74HC541PW,112 pin-compatible with 74LS541 in SO20 packages?
No - while both are octal 3-state buffers, 74LS541 uses TTL technology with different input thresholds, drive strength, and power consumption. Pin numbering matches (SOT163-1 vs SOT360-1 share identical pin 1–20 mapping), but electrical substitution requires verification of VIH/VIL, fanout, and VCC constraints; direct replacement is not recommended without redesign.
Does this device require external pull-up or pull-down resistors on OE pins?
No - OE1 and OE2 have no internal pull resistors and must be actively driven. Leaving them floating risks undefined output states and potential bus contention. In most designs, they are connected to MCU GPIOs or decoded logic; if unused, tie both to GND (to enable outputs) or VCC (to disable) via 10 kΩ resistors for safety.
74HC541PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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,112 FAQ
1.How can I place an order for 74HC541PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC541PW,112 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,112 reliable?
The price and inventory of 74HC541PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC541PW,112 is usually 5 days.
3.What payment methods are accepted for 74HC541PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC541PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC541PW,112?
74HC541PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC541PW,112 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,112?
For technical support, including 74HC541PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC541PW,112 requirements.
6.How does Aetrix verify that 74HC541PW,112 is sourced from the original manufacturer or authorized distributors?
All 74HC541PW,112 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,112 meets industry standards.
7.What is the process for return or replacement of 74HC541PW,112?
All 74HC541PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC541PW,112, 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,112 part is unused and in its original packaging.
Return procedure for 74HC541PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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