SN74LS541DWIn StockTexas Instruments
SN74LS541DW is a TTL octal buffer/line driver IC by Texas Instruments. Key specs: 8-bit non-inverting buffer, LS-TTL logic family, 20-pin DW (SOIC) package. From $0.264, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2640(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit non-inverting buffer with tri-state outputs for bus driving
- LS-TTL logic family with low power Schottky for balanced speed and power
- 20-pin SOIC (DW) package for compact PCB footprint
- Active-low output enable (OE) control for easy bus sharing
- Compatible with standard 74LS logic levels and 5V supply
Applications
SN74LS541DW is widely used in data bus buffering and line driving applications in microprocessor systems, memory interfaces, and digital communication circuits. Its tri-state outputs make it ideal for driving shared data buses where multiple devices must coexist. Typical applications include address/data bus expansion, I/O port buffering, and signal level restoration in industrial control and embedded systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74LS541DW and what does it do?
The SN74LS541DW is an octal (8-bit) non-inverting buffer and line driver from Texas Instruments, fabricated in the LS-TTL (Low-power Schottky) logic family. It features tri-state outputs controlled by two active-low output enable pins, making it suitable for driving high-capacitance bus lines in 5V digital systems.
What are the key electrical specifications of the SN74LS541DW?
The SN74LS541DW operates from a 5V supply (4.75V–5.25V). It supports standard LS-TTL input thresholds (VIH ≥ 2V, VIL ≤ 0.8V) and delivers up to 24mA output sink current per channel. Propagation delay is typically 15ns, and operating temperature range is 0°C to 70°C for the commercial grade.
What package does the SN74LS541DW come in and what are alternative packages?
The SN74LS541DW is housed in a 20-pin wide-body SOIC (DW) package, offering good thermal performance and ease of PCB assembly. Texas Instruments also offers the SN74LS541N in a 20-pin PDIP package for through-hole designs, and the SN74LS541NSR in a 20-pin SSOP for more compact surface-mount layouts.
What are common applications for the SN74LS541DW?
The SN74LS541DW is commonly used in microprocessor address and data bus buffering, memory interface circuits, I/O port expansion, and industrial control systems. Its tri-state capability enables multiple drivers to share a single bus without contention, making it essential in multi-master bus architectures and backplane designs.
Where can I buy the SN74LS541DW and what is the price?
The SN74LS541DW is available from major distributors such as Digi-Key, Mouser, and Arrow, as well as through FindMyChip. Pricing starts at approximately $0.264 per unit at volume, with worldwide shipping available. Stock levels vary by distributor, so it is recommended to check current availability on FindMyChip for the best pricing and lead times.
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Why Buy from FindMyChip
About Texas Instruments
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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