CD40257BE-NG Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD40257BE-NG is a CMOS quad 2-to-1 data selector/multiplexer from Texas Instruments in the 4000-series logic family, providing four independent single-bit multiplexer channels with a common select input and 3-state outputs in a through-hole DIP package. It operates across a wide 3 V to 18 V supply range for broad compatibility with TTL and CMOS logic systems. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD40257BE-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 with common SELECT and ENABLE inputs, allowing simultaneous 4-bit data path switching with a single control signal
- 3-state outputs on all four channels enable direct bus connection and tri-state data bus sharing without additional buffers
- Wide 3 V to 18 V supply voltage range and CMOS 4000-series compatibility for easy integration across 5 V TTL and 12 V analog control systems
Applications
The CD40257BE-NG is used in digital data routing, 4-bit bus multiplexing, and source-selection circuits in embedded control and instrumentation systems. Its 3-state outputs make it suitable for shared data bus architectures where multiple devices must drive a common line in a time-multiplexed fashion. The wide supply voltage range and through-hole DIP package make it a practical choice for prototyping, educational platforms, and legacy industrial control boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD40257BE-NG:
Multiplexer, 4000/14000/40000 Series, 4-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDIP16
Frequently Asked Questions
What is the function of the CD40257BE-NG?
The CD40257BE-NG is a quad 2-to-1 data selector/multiplexer. Each of its four channels selects between two data inputs based on a common SELECT pin and presents the result on a 3-state output. The ENABLE input can disable all outputs simultaneously, putting them in a high-impedance state.
What supply voltage does the CD40257BE-NG operate from?
The CD40257BE-NG operates across a wide supply voltage range of 3 V to 18 V, typical of the CMOS 4000-series family. This allows the device to interface with 3.3 V microcontrollers, 5 V TTL logic, and 12 V industrial control systems without additional level-shifting circuitry.
What package does the CD40257BE-NG use?
The CD40257BE-NG is housed in a through-hole dual-in-line package (DIP), making it easy to use in breadboard prototyping, wire-wrapped assemblies, and legacy PCB designs. The DIP format is widely stocked and compatible with standard 0.3-inch socket footprints.
Can the CD40257BE-NG be used in 3-state bus applications?
Yes, the CD40257BE-NG features 3-state outputs controlled by an active-low ENABLE input. When ENABLE is high, all four outputs are placed in high-impedance mode, allowing multiple multiplexers to share a common data bus without bus contention.
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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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