SN74AS258N Texas Instruments In Stock
SN74AS258N is a quad 2-to-1 data selector/multiplexer with 3-state outputs by Texas Instruments, featuring Advanced Schottky TTL logic for high-speed operation. Key specs: 4 channels, active-low output enable, 5V supply voltage, 20-pin PDIP package. From $2.24, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $2.2375(MOQ 107)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AS258N?
- Quad 2-to-1 data selector/multiplexer with 3-state outputs for bus-oriented applications
- Advanced Schottky TTL technology for high-speed switching and reduced power consumption
- Active-low output enable (OE) allows easy bus expansion and control
- Compatible with TTL/CMOS logic levels, operates on 5V supply
- Available in 20-pin PDIP (N) package for through-hole PCB assembly
What is SN74AS258N used for?
The SN74AS258N is widely used in digital systems requiring data routing and bus multiplexing, such as microprocessor address/data bus selection and memory bank switching. Its 3-state outputs make it ideal for shared bus architectures in industrial control systems, communications equipment, and embedded computing designs. It is also commonly deployed in test and measurement instruments where fast, reliable data path switching between multiple signal sources is required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74AS258N?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74AS258N and what does it do?
The SN74AS258N is a quad 2-to-1 data selector/multiplexer with 3-state outputs from Texas Instruments. It selects one of two 4-bit data inputs (A or B) and routes it to the output based on a common select line, while the active-low output enable pin allows the outputs to be placed in a high-impedance state for bus sharing.
What are the key electrical specifications of the SN74AS258N?
The SN74AS258N operates from a 5V supply voltage and uses Advanced Schottky TTL technology, providing typical propagation delays of around 5ns. It features a 20-pin PDIP package, outputs rated for standard TTL fan-out, and an operating temperature range of 0°C to 70°C for commercial-grade applications.
What applications is the SN74AS258N best suited for?
The SN74AS258N is ideal for microprocessor bus multiplexing, memory bank selection, data routing in digital logic systems, and any application requiring high-speed switching between two 4-bit data sources. Its 3-state outputs make it especially well-suited for shared bus architectures in industrial control, embedded systems, and communications equipment.
What is the difference between the SN74AS258N and the SN74AS157?
Both are quad 2-to-1 multiplexers in the AS TTL family, but the SN74AS258N has inverted (complemented) 3-state outputs, while the SN74AS157 has non-inverting totem-pole outputs. Choose SN74AS258N when 3-state bus capability is needed; choose SN74AS157 for standard driven-output applications.
Where can I buy the SN74AS258N and what is the price?
The SN74AS258N is available through FindMyChip with worldwide shipping, priced from approximately $2.24 per unit. Submit a quote request on our platform to get current stock availability, volume pricing, and lead time information from verified distributors.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 107+ | $2.8000 | $299.60 |
| 400+ | $2.4700 | $988.00 |
| 1000+ | $2.3750 | $2375.00 |
| 10000+ | $2.2375 | $22375.00 |
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