CD74HC4515EG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments CD74HC4515EG4 is a high-speed CMOS 4-to-16 line decoder/demultiplexer with active-low outputs, operating from 2 V to 6 V supply. It features an enable input and is housed in a 24-pin DIP package suitable for logic decoding applications.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4515EG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-to-16 line decoder/demultiplexer with active-low outputs enabling up to 16 decoded address lines from 4 binary inputs
- Wide 2 V to 6 V supply voltage range with high-speed CMOS technology providing propagation delays as low as 8 ns at 6 V
- Active-low enable input (E) for cascading multiple decoders to expand decoding capacity without additional glue logic
Applications
The CD74HC4515EG4 is used in address decoding for memory and peripheral selection in microprocessor-based systems, where 4 binary address lines must select among up to 16 output lines. It is also applied in data routing, multiplexing, and LED matrix driving circuits that require a compact 24-pin DIP solution operating from 2 V to 6 V. Industrial control systems and programmable logic controllers use this device for I/O port expansion and output demultiplexing.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4515EG4:
Frequently Asked Questions
What supply voltage range does the CD74HC4515EG4 support, and how does that affect its propagation delay?
The CD74HC4515EG4 operates from 2 V to 6 V supply voltage. At 6 V, typical propagation delay is approximately 8 ns, while at 2 V it increases to around 75 ns. This wide range allows integration into 3.3 V and 5 V logic systems without level translation.
How many decoded output lines does the CD74HC4515EG4 provide from its 4 binary inputs?
The CD74HC4515EG4 decodes 4 binary address inputs into 16 active-low output lines, enabling selection of 1 of 16 outputs at a time. This makes it suitable for memory chip-select decoding or 16-port output demultiplexing in embedded designs.
Can CD74HC4515EG4 units be cascaded for larger decoding systems?
Yes, the active-low enable input (E) on the CD74HC4515EG4 allows multiple devices to be cascaded to decode 5 or more address bits into 32 or more output lines. Each stage requires only one 24-pin DIP device, keeping board space and component count low.
Which package does the CD74HC4515EG4 use, and what does the EG4 suffix indicate?
The CD74HC4515EG4 comes in a 24-pin DIP (Dual-In-Line Package) with 2.54 mm pin pitch. The 'EG4' suffix denotes the green (RoHS-compliant, lead-free) variant manufactured by Texas Instruments, meeting REACH and RoHS environmental standards for global distribution.
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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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