SN74ALS161BDIn StockTexas Instruments
SN74ALS161BD is a 4-bit synchronous binary counter with synchronous clear and parallel load by Texas Instruments. Key specs: 4-bit count, 25MHz typical clock frequency, 5V supply voltage, DIP-16 package. From $0.28, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2800(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-bit synchronous binary counter with synchronous parallel load and clear
- High-speed ALS (Advanced Low-power Schottky) CMOS technology for reliable logic performance
- Synchronous clear and load operations minimize timing complexity in system design
- Compatible with TTL logic levels, ideal for direct interface with standard 5V logic systems
- Low propagation delay for high-frequency counting applications up to 25MHz
Applications
The SN74ALS161BD is widely used in digital timing circuits, frequency dividers, and event counters in industrial control systems and embedded electronics. It is suitable for address generation in memory interfacing, clock division in communication systems, and sequencer circuits in programmable logic designs. Its synchronous operation makes it an excellent choice for applications requiring predictable, glitch-free counting behavior.
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 maximum clock frequency of the SN74ALS161BD?
The SN74ALS161BD supports a typical maximum clock frequency of 25MHz, making it suitable for high-speed digital counting applications. Its ALS technology ensures low propagation delay and reliable performance at these frequencies.
What are typical applications for the SN74ALS161BD?
The SN74ALS161BD is commonly used in digital counters, frequency dividers, event counters, address generators for memory interfaces, and sequencer logic circuits in industrial and embedded systems. Its synchronous clear and load functions make it versatile for a wide range of timing and control applications.
What package does the SN74ALS161BD come in and what is its supply voltage?
The SN74ALS161BD is available in a DIP-16 (BDIP) through-hole package, which is well-suited for prototyping and traditional PCB assembly. It operates on a standard 5V supply voltage, compatible with TTL and ALS logic families.
What is the difference between synchronous clear and asynchronous clear in the SN74ALS161BD?
The SN74ALS161BD features a synchronous clear input, meaning the counter resets to zero on the next rising clock edge when the clear signal is asserted. This differs from asynchronous clear, which would immediately reset the counter regardless of the clock, providing more predictable and glitch-free operation in synchronous designs.
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Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6000 | $0.60 |
| 41+ | $0.4000 | $16.40 |
| 151+ | $0.2800 | $42.28 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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