CD74HC237EG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC237EG4 is a high-speed CMOS 3-to-8 line decoder and demultiplexer from Texas Instruments in a 16-pin DIP package. It decodes a 3-bit binary address to activate one of eight active-high outputs, with 2V to 6V supply range and enable control. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC237EG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-to-8 line decoder/demultiplexer decoding a 3-bit binary input to one of eight active-high outputs for address decoding and data routing
- High-speed HC CMOS logic family with 2V to 6V supply voltage range, providing fast propagation delays compatible with standard 3.3V and 5V systems
- Latch enable and strobe input for addressable output control, enabling dynamic address selection without glitches during address transitions
- Through-hole 16-pin DIP package ideal for breadboard prototyping, educational use, and legacy industrial equipment maintenance and repair
Applications
The CD74HC237EG4 is commonly used in address decoding for memory expansion and peripheral selection in microprocessor and microcontroller systems, where a 3-bit address bus output selects one of eight memory banks or I/O devices. It also serves as a demultiplexer for routing a single data line to one of eight destinations in data distribution networks and bus expansion circuits. The device is additionally used in LED matrix row/column selection, relay driving arrays, and multiplexed display segment control in industrial and consumer electronics applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC237EG4:
Frequently Asked Questions
What does the CD74HC237EG4 do?
The CD74HC237EG4 is a 3-to-8 line decoder and demultiplexer. It takes a 3-bit binary address input and activates one of eight output lines high, with all others remaining low. This makes it ideal for address decoding, peripheral selection, and data demultiplexing in digital systems.
What supply voltage range does the CD74HC237EG4 operate over?
The CD74HC237EG4 operates from 2V to 6V supply voltage, covering standard 3.3V and 5V CMOS logic levels. This wide range provides compatibility with both modern low-voltage microcontroller systems and legacy 5V digital designs used in industrial control and embedded computing applications.
What package does the CD74HC237EG4 use?
The CD74HC237EG4 is housed in a 16-pin DIP (Dual In-line Package). This through-hole package is compatible with standard 0.1-inch breadboards and DIP IC sockets, making it a popular choice for prototyping, educational projects, and replacement in legacy industrial equipment.
Does the CD74HC237EG4 have an enable or latch control input?
Yes, the CD74HC237EG4 includes enable and latch inputs that allow the decoded output to be enabled or disabled and held stable during address changes. The latch input stores the current address to prevent glitches on the outputs while the address lines are being updated, which is critical in bus-sharing applications.
What is the difference between the CD74HC237 and CD74HC138?
Both are 3-to-8 decoders, but the CD74HC237 has active-high outputs while the CD74HC138 has active-low outputs. The CD74HC237 also includes an address latch function for glitch-free output transitions. Choose between them based on whether your system requires active-high or active-low enable/select signals for connected devices.
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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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