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NXP Semiconductors 74HC541N,652
- Part No.:
- 74HC541N,652
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
74HC541N,652.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,247
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Product details
Overview
74HC541N,652 from Nexperia is an octal non-inverting 3-state buffer/line driver in a 20-lead DIP package (SOT146-1), operating from 2.0 V to 6.0 V supply, delivering ±35 mA output drive per channel with propagation delay as low as 10 ns at VCC = 6.0 V and CL = 50 pF - used for bidirectional bus interfacing and address/data latching in industrial control logic systems.
For engineers reviewing the 74HC541N,652 datasheet, 74HC541N,652 pinout, 74HC541N,652 application, or 74HC541N,652 equivalent, this page delivers verified pin mapping, temperature-rated static/dynamic specifications, JEDEC-compliant noise immunity data, and direct alternatives for legacy DIP-based board designs requiring CMOS-level input compatibility and high-impedance bus isolation.
Technical Context
The 74HC541N,652 implements eight identical non-inverting buffer circuits with dual active-low output enables (OE1, OE2) enabling independent group control of Y0–Y7 outputs. Its CMOS input structure supports rail-to-rail voltage thresholds (VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V) and integrates input clamp diodes for overvoltage tolerance with current-limiting resistors.
It operates across -40 °C to +125 °C, meets JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, and features HBM ESD protection >2000 V and latch-up immunity >100 mA per JESD78 Class II Level B - confirming suitability for noise-prone industrial I/O expansion and microcontroller peripheral buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing without level shifters |
| Propagation Delay (tpd) | 10 ns (max) at VCC = 6.0 V, CL = 50 pF - enables reliable timing in 50 MHz+ digital control buses |
| Output Drive Current | ±35 mA per output - sufficient to directly drive LEDs, relays, or TTL inputs without external buffers |
| Input Thresholds (VCC = 6.0 V) | VIH = 4.2 V, VIL = 1.8 V - ensures robust noise margin (>1.2 V) in electrically noisy environments |
| Operating Temperature | -40 °C to +125 °C - qualified for extended-range industrial PLC and motor drive applications |
| Power Dissipation (Ptot) | 500 mW (max) - allows full 8-channel operation under continuous load at ambient ≤109 °C |
| Input Clamp Diodes | Integrated - permits safe interface to signals exceeding VCC when used with current-limiting resistors |
Pinout & Package
74HC541N,652 uses a 20-lead plastic dual in-line package (DIP), SOT146-1, with 2.54 mm lead pitch and 0.3 inch body width - compatible with standard through-hole PCB assembly and socketing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output enable inputs - both must be LOW to activate all eight outputs; independent control enables partial bus gating |
| 2–9 | A0–A7 | Data inputs - CMOS-compatible, rail-to-rail switching with <3.5 pF input capacitance per pin |
| 10 | GND | Ground reference - dedicated low-impedance return path for all internal logic and output stages |
| 11–12, 13–18 | Y0–Y7 | Non-inverting 3-state outputs - HIGH/LOW/Hi-Z states controlled by OE1/OE2; ±35 mA sink/source capability |
| 20 | VCC | Positive supply - powers all logic and output drivers; decoupling capacitor required within 10 mm |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent output enables | OE1 and OE2 allow selective activation of output groups - critical for multi-master bus arbitration and memory-mapped I/O partitioning |
| Wide supply range (2.0–6.0 V) | Eliminates need for separate voltage regulators in mixed-supply systems such as 3.3 V MCU + 5 V peripheral interfaces |
| High noise immunity | CMOS input structure with >1.2 V noise margin at VCC = 6.0 V - suppresses false triggering in industrial EMI environments |
| Latch-up immunity >100 mA | Meets JESD78 Class II Level B - prevents destructive latch-up during transient overcurrent events on I/O lines |
| Clamp diode protected inputs | Enables safe connection to voltages up to VCC + 0.5 V using series current-limiting resistors - simplifies interface to higher-voltage sensors or legacy logic |
Applications
| Industrial PLC I/O Expansion | Microcontroller Address/Data Bus Buffering |
|---|---|
Use Scenario: Isolating and driving 8-bit parallel data paths between a microcontroller and multiple peripheral modules in a programmable logic controller rack. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing bidirectional signal integrity, bus contention prevention, and drive strength enhancement for address/data lines. Use Value: Enables clean signal transmission over 15 cm PCB traces at 20 MHz while supporting hot-swap of I/O modules via Hi-Z state control. |
Use Scenario: Interfacing an 8-bit microcontroller's port pins to external SRAM or EPROM chips requiring higher capacitive load drive and bus isolation. IC Role / Device Role / Timing Role: Line driver that translates MCU logic levels to memory-compatible voltage swing and provides output disable during memory read/write cycles. Use Value: Reduces signal rise/fall time degradation caused by 30 pF trace + device loading, maintaining setup/hold timing margins across temperature. |
| Legacy System Bus Interface | LED Array Driver with Bus Isolation |
Use Scenario: Adapting modern low-voltage logic to legacy 5 V TTL backplanes in test equipment or instrumentation upgrades. IC Role / Device Role / Timing Role: Voltage-tolerant buffer translating 3.3 V MCU outputs to full 5 V swing while preserving timing integrity and preventing backfeeding. Use Value: Eliminates need for discrete level-shifter networks; clamp diodes protect against accidental 5 V signal injection into 3.3 V domain. |
Use Scenario: Driving 8-segment LED displays or indicator arrays from a shared microcontroller port without affecting other peripherals on the same bus. IC Role / Device Role / Timing Role: Output driver with 3-state control allowing dynamic multiplexing and simultaneous disabling of all segments during display refresh. Use Value: Delivers 20 mA per segment at 5 V with <0.4 V VOL, ensuring consistent brightness across all LEDs without external current-limiting resistors per segment. |
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 |
|---|---|---|---|
| 74HC541D,652 | SO20 surface-mount package (SOT163-1); identical electrical specs but 7.5 mm body width and gull-wing leads | Requires rework of PCB layout; unsuitable for through-hole prototyping or socket-based testing | Select when space-constrained PCBs demand surface-mount integration and thermal performance exceeds DIP limits |
| SN74HC541N | Same DIP-20 mechanical form factor; TI-manufactured with VIH/VIL thresholds aligned to 74HC family (not 74HCT), but lower max ICC (160 μA vs 70 mA) | Valid for low-power logic interfacing but not for high-current loads like relays or LEDs | Choose for battery-powered or ultra-low-quiescent systems where output drive ≤6 mA suffices |
Compared with 74HC541N,652, the 74HC541D,652 offers superior thermal dissipation in compact layouts but mandates SMT assembly, while SN74HC541N retains DIP compatibility yet sacrifices output drive strength - making 74HC541N,652 optimal for legacy-replacement scenarios demanding full 35 mA per channel and through-hole serviceability.
Availability
74HC541N,652 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller bus buffering, and legacy system interface applications requiring stable component supply, long-term obsolescence management, and through-hole assembly support.
Supply support for 74HC541N,652 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC541N,652 belongs to Nexperia's HC-series logic family, engineered for robustness in industrial automation and control systems where wide voltage operation, noise immunity, and extended temperature range are mandatory design requirements.
FAQ
What is the maximum operating temperature for the 74HC541N,652?
The 74HC541N,652 is fully specified and qualified for continuous operation from -40 °C to +125 °C. This extended temperature range is validated per JEDEC standards and confirmed in the static and dynamic characteristics tables across all supply voltages (2.0 V to 6.0 V), making it suitable for under-hood industrial enclosures and motor drive control units where ambient heat exceeds 85 °C.
Does the 74HC541N,652 support TTL-level inputs?
No, the 74HC541N,652 does not support TTL-level inputs. It is a true 74HC-family device with CMOS input thresholds (VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V). For TTL-compatible operation, use the pin-compatible 74HCT541N variant, which specifies VIH = 2.0 V and VIL = 0.8 V at VCC = 4.5 V–5.5 V - a key distinction confirmed in Table 6 of the Nexperia datasheet Rev. 6.
Can both OE1 and OE2 be tied together in the 74HC541N,652?
Yes, OE1 and OE2 can be tied together and driven by a single control signal in the 74HC541N,652. The functional table (Table 3) confirms that either OE1 or OE2 being HIGH forces all outputs into high-impedance state - tying them simplifies enable logic at no electrical penalty, as each input draws only ±1.0 μA leakage current and shares identical voltage thresholds.
What is the typical propagation delay of the 74HC541N,652 at 5 V supply?
At VCC = 5.0 V and CL = 15 pF, the 74HC541N,652 exhibits a typical propagation delay (tpd) of 10 ns, as specified in Table 7. This value applies to both A→Y and OE→Y transitions and is measured under standard test conditions (VM = 0.5 × VCC, tr/tf = 6 ns), ensuring predictable timing behavior in synchronous 5 V logic systems.
Is the 74HC541N,652 RoHS compliant and halogen-free?
Yes, the 74HC541N,652 is RoHS compliant and halogen-free, as confirmed by Nexperia's product compliance documentation and material declarations. The SOT146-1 package uses lead-free matte tin terminations and meets EU Directive 2011/65/EU, with no brominated flame retardants or chlorine-based compounds in the molding compound - verified in Nexperia's official environmental reports dated 2024.
74HC541N,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 20-DIP
74HC541N,652 FAQ
1.How can I place an order for 74HC541N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC541N,652 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 74HC541N,652 reliable?
The price and inventory of 74HC541N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC541N,652 is usually 5 days.
3.What payment methods are accepted for 74HC541N,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC541N,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC541N,652?
74HC541N,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC541N,652 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 74HC541N,652?
For technical support, including 74HC541N,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC541N,652 requirements.
6.How does Aetrix verify that 74HC541N,652 is sourced from the original manufacturer or authorized distributors?
All 74HC541N,652 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 74HC541N,652 meets industry standards.
7.What is the process for return or replacement of 74HC541N,652?
All 74HC541N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC541N,652, 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 74HC541N,652 part is unused and in its original packaging.
Return procedure for 74HC541N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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