CD74AC163E-NG Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74AC163E-NG is a 4-bit synchronous binary counter from the AC-series high-speed CMOS logic family, featuring synchronous clear, parallel load, and carry-out for easy cascade expansion in a 16-pin DIP through-hole package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74AC163E-NG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Synchronous binary counting with synchronous clear eliminates output glitches during reset, ensuring clean digital timing
- Parallel load capability allows presetting the counter to any 4-bit value on-the-fly without stopping the clock
- Carry-out (RCO) output enables direct cascade of multiple counters for wider bit-width frequency division
- AC-series high-speed CMOS logic provides fast propagation with low power vs. legacy 74HC or 74LS families
Applications
The CD74AC163E-NG is widely used in digital frequency dividers, clock generation circuits, and address generators in embedded microprocessor systems requiring precise timing references. It is a fundamental building block in digital state machines, sequence controllers, and educational logic design labs due to its versatile synchronous load and clear functions. The DIP package makes it accessible for prototyping, repair, and breadboard-based digital design experimentation.
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 type of counter is the CD74AC163E-NG and what are its key functional features?
The CD74AC163E-NG is a 4-bit synchronous binary up-counter with synchronous parallel load, synchronous clear, two count-enable inputs (P and T), and a ripple carry output (RCO). These features allow it to be preset to any value, enabled or disabled without losing count, and cascaded to form wider counters.
How can the CD74AC163E-NG be cascaded to build wider counters?
The RCO (ripple carry output) goes high when the counter reaches its maximum count (15), which can be connected to the count-enable input of the next stage. This allows multiple CD74AC163E-NG devices to be chained to create 8-bit, 12-bit, or wider synchronous binary counters with minimal external logic.
What package does the CD74AC163E-NG use and is it suitable for prototyping?
The CD74AC163E-NG is packaged in a 16-pin Dual-In-Line Package (DIP), which is ideal for breadboard prototyping, educational kits, and through-hole PCB assembly. The DIP format is widely supported by standard IC sockets, making it easy to swap or replace in the field.
What is the difference between synchronous clear and asynchronous clear in the CD74AC163E-NG?
The CD74AC163E-NG implements synchronous clear, meaning the counter resets to zero only on the next rising clock edge after the clear input is asserted. This prevents output glitches that can occur with asynchronous clear designs, ensuring clean and predictable behavior in timing-sensitive digital systems.
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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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