SN74AS151N Texas Instruments In Stock
SN74AS151N is an 8-input data selector/multiplexer logic IC by Texas Instruments, featuring advanced Schottky TTL technology for high-speed operation. Key specs: 8-to-1 multiplexing, 3-state outputs, 5V supply voltage, propagation delay ~5ns. From $3.25, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $3.2500(MOQ 74)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AS151N?
- 8-to-1 data selector/multiplexer with advanced Schottky TTL for high-speed switching
- Active-LOW strobe input enables cascading multiple devices for larger multiplexing
- 3-state output option provides bus-compatible interface for system integration
- Standard DIP-16 package ensures easy PCB integration and broad tooling support
- Compatible with TTL, LSTTL, and CMOS logic families for versatile system design
What is SN74AS151N used for?
The SN74AS151N is widely used in digital systems requiring data routing and selection, such as microcontroller I/O expansion, data bus switching, and logic function generation. It is commonly found in industrial control systems, communication equipment, and embedded designs where high-speed signal multiplexing is critical. Its TTL compatibility also makes it suitable for upgrading or replacing legacy logic circuits in existing hardware platforms.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74AS151N?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74AS151N and what does it do?
The SN74AS151N is an 8-input data selector/multiplexer from Texas Instruments. It selects one of eight data inputs based on a 3-bit binary address and routes the selected signal to the output, making it ideal for data routing, function generation, and parallel-to-serial conversion in digital circuits.
What are the key electrical specifications of the SN74AS151N?
The SN74AS151N operates on a 5V supply voltage, features advanced Schottky TTL technology with a typical propagation delay of around 5ns, supports an 8-to-1 multiplexing ratio, and provides complementary (Y and W) outputs. Maximum operating frequency exceeds 100MHz, making it suitable for high-speed digital systems.
What package type does the SN74AS151N come in and is it RoHS compliant?
The SN74AS151N is available in a 16-pin PDIP (plastic dual in-line package) through-hole package, which is convenient for prototyping and hand soldering. This legacy package variant may have RoHS exemptions; users requiring full RoHS compliance should consider the surface-mount SN74AS151D or SN74AS151DR alternatives.
What are common applications for the SN74AS151N?
Common applications include microprocessor data bus expansion, digital signal routing in communications equipment, combinational logic function implementation, parallel-to-serial data conversion, and channel selection in test and measurement instruments. The device is also used in industrial control systems requiring reliable, high-speed logic switching.
What are suitable replacement or equivalent parts for the SN74AS151N?
Suitable pin-compatible alternatives include the SN74LS151N (low-power Schottky), SN74F151N (FAST TTL), and SN74HC151N (CMOS, 2V–6V supply). For surface-mount designs, the SN74AS151D offers the same functionality in an SOIC-16 package. Always verify timing and voltage specifications before substituting in a design.
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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 |
|---|---|---|
| 74+ | $4.0600 | $300.44 |
| 275+ | $3.6100 | $992.75 |
| 1000+ | $3.4500 | $3450.00 |
| 10000+ | $3.2500 | $32500.00 |
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