CD74HC541EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC541EE4 is a high-speed CMOS octal buffer and line driver with 3-state outputs from Texas Instruments in a 20-pin DIP package. It features dual active-low output enable controls, 2V to 6V supply range, and unidirectional drive with 50 pF load tolerance. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC541EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 3-state buffer/line driver with dual active-low output enable for flexible bus control and signal isolation in digital systems
- High-speed CMOS HC/UH logic family supporting 2V to 6V supply voltage for compatibility with standard 3.3V and 5V bus architectures
- Unidirectional drive architecture with 50 pF load capacitance tolerance enabling reliable data transmission on high-capacitance backplanes and buses
- Through-hole 20-pin PDIP package with Pb-free e4 RoHS-compliant construction, ideal for prototyping and legacy industrial applications
Applications
The CD74HC541EE4 is widely used as a data bus buffer and line driver in microprocessor address and data bus systems, enabling multiple peripherals to share a common bus without signal contention. Its dual output-enable inputs make it effective for bus isolation, signal multiplexing, and direction control in bidirectional interface designs. The through-hole DIP package also makes it a popular choice for prototyping boards, educational electronics projects, and legacy industrial equipment maintenance.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.006A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 35ns |
| Propagation Delay (tpd) | 175ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC541EE4:
Frequently Asked Questions
What is the function of the dual output enable pins on the CD74HC541EE4?
The CD74HC541EE4 has two active-low output enable pins (OE1 and OE2) that must both be low to enable the outputs. When either pin is high, all outputs are placed in a high-impedance state, allowing multiple devices to share the same bus without signal conflicts.
What supply voltage range does the CD74HC541EE4 support?
The CD74HC541EE4 operates over a supply voltage range of 2V to 6V, making it compatible with both 3.3V and 5V digital logic systems. This wide range provides design flexibility for mixed-voltage environments common in industrial and embedded systems.
What package type does the CD74HC541EE4 use?
The CD74HC541EE4 uses a 20-pin plastic dual-in-line package (PDIP), identified by JESD-30 code R-PDIP-T20. This through-hole package is well-suited for prototyping on breadboards and soldering into through-hole PCBs used in legacy industrial designs.
What are common applications for the CD74HC541EE4?
Common applications include microprocessor bus buffering, address line driving, memory interface expansion, and signal isolation between logic domains. The 3-state output capability makes it especially useful in shared-bus architectures where multiple drivers must be connected to a single bus.
What surface-mount alternative exists for the CD74HC541EE4?
Surface-mount alternatives include the SN74HC541 in SOIC or TSSOP packages, offering the same octal 3-state buffer functionality in a smaller footprint. Verify pinout compatibility when substituting, as pin numbering may differ slightly between DIP and surface-mount variants.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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