CD74AC157E-NG Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74AC157E-NG is a quad 2-to-1 data multiplexer IC from Texas Instruments in the high-speed AC-series CMOS logic family, featuring four independent single-bit 2-input MUX channels in a 16-pin DIP package. It supports fast switching with low propagation delay and operates over standard logic supply voltages. In stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74AC157E-NG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad 2-to-1 multiplexer architecture selects between two 4-bit data buses with a single common select pin
- AC-series CMOS technology delivers high-speed switching with propagation delays as low as 5 ns at 5V supply
- 16-pin DIP package provides easy prototyping and breadboard compatibility for data-routing applications
- Wide operating voltage range and full compatibility with TTL and CMOS logic levels enables mixed-logic system integration
Applications
The CD74AC157E-NG is used in digital data routing circuits, bus multiplexing, and data selector applications in microprocessor-based systems and embedded designs. It enables efficient selection between two parallel 4-bit data sources using a single select line, making it ideal for memory address multiplexing, ALU input selection, and signal switching in communications hardware. The device is also widely used in FPGA prototyping, test equipment, and logic design training platforms.
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 function of the CD74AC157E-NG?
The CD74AC157E-NG is a quad 2-to-1 data multiplexer. It has four independent MUX channels, each selecting one of two data inputs (A or B) based on a common SELECT input. All four channels switch simultaneously, allowing 4-bit parallel bus selection in a single IC.
What logic family does the CD74AC157E-NG belong to and what are its speed characteristics?
The CD74AC157E-NG belongs to the AC (Advanced CMOS) logic series, which offers significantly higher switching speeds than the standard 4000-series CMOS. The AC family typically achieves propagation delays of approximately 5 ns at 5V, enabling use in fast digital designs.
What package does the CD74AC157E-NG use?
The CD74AC157E-NG is packaged in a 16-pin plastic DIP (Dual In-Line Package). This through-hole package is well-suited for prototyping, breadboarding, and applications where soldering density requirements are relaxed.
Is the CD74AC157E-NG compatible with TTL logic levels?
Yes, the CD74AC157E-NG in the AC CMOS series accepts TTL-compatible input voltage levels, making it suitable for interfacing with TTL-output devices such as legacy microprocessors and standard logic ICs operating at 5V.
What are typical applications for the CD74AC157E-NG?
Typical applications include bus multiplexing in microprocessor systems, data source selection in ALUs, address multiplexing in memory controllers, test and measurement equipment, and signal routing in programmable logic prototyping boards.
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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.
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