74HCT7541D,112 Nexperia Integrated Circuit (Other) In Stock
Nexperia 74HCT7541D,112 is a high-speed CMOS octal 3-state unidirectional buffer with dual active-low output-enable inputs housed in a 20-pin SOP (SOT163-1) package. Operating from 4.5 V to 5.5 V with full TTL input-level compatibility, it drives 8 signal lines with 50 pF load capacitance capability for bus interface applications. Available from authorized distributors worldwide at competitive pricing with fast shipping.
- Manufacturer
- Nexperia
- Package
- Other
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- 74HCT7541D,112 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 3-state unidirectional buffer with dual active-low output-enable (OE1, OE2) for flexible bus control
- HCT family ensures full TTL input-level compatibility operating from 4.5 V to 5.5 V VCC
- Drives up to 50 pF load capacitance across all 8 outputs for standard logic bus applications
- Compact 20-pin SOP (SOT163-1, 7.50 mm body) package optimized for SMT automated assembly
Applications
74HCT7541D,112 is widely used in microprocessor address and data bus buffering, memory interface expansion, and multi-board backplane designs requiring 8-channel 3-state drive capability from a 5 V supply. Its dual active-low output-enable inputs simplify bus arbitration logic in industrial controllers, embedded systems, and communication equipment. The HCT family's TTL input compatibility makes it a direct drop-in replacement in legacy 5 V TTL system upgrades.
Specifications
| Manufacturer Package Code | SOT163-1 |
| Date Of Intro | 1993-11-01 |
| YTEOL | 0 |
| Additional Feature | WITH DUAL OUTPUT ENABLE |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HCT |
| JESD-30 Code | R-PDSO-G20 |
| 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 | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 48ns |
| Propagation Delay (tpd) | 48ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD SILVER |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage and logic family does the 74HCT7541D,112 belong to?
The 74HCT7541D,112 belongs to the HCT (High-speed CMOS TTL-compatible) logic family and operates from a 4.5 V to 5.5 V supply. Its TTL-compatible input thresholds allow direct interfacing with bipolar TTL devices while providing CMOS output drive strength across all 8 channels, making it ideal for mixed-logic 5 V bus environments.
How does the dual output-enable architecture of 74HCT7541D,112 benefit bus arbitration designs?
The 74HCT7541D,112 provides two independent active-low output-enable inputs, both of which must be asserted simultaneously to activate all 8 outputs. This dual-enable scheme simplifies bus arbitration in 5 V microprocessor systems by requiring two control signals to gate the buffer, reducing accidental bus contention in address or data bus expansion circuits.
What package does 74HCT7541D,112 use and how does it compare to through-hole alternatives?
The 74HCT7541D,112 comes in a 20-pin SOP (SOT163-1) package with a 7.50 mm body width, occupying significantly less PCB area than an equivalent 20-pin DIP through-hole package. The surface mount format supports automated reflow assembly, improves thermal performance, and is compatible with modern high-density PCB layouts in embedded and industrial designs.
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