Description
A set of 5 x SN74HC161N High-Speed CMOS 4-Bit Synchronous Binary Counter ICs in DIP-16 package, ideal for high-speed counting, timing, and digital control applications.
The SN74HC161N is a synchronous, presettable 4-bit binary counter featuring an internal carry look-ahead for fast counting designs. All flip-flops are clocked simultaneously, ensuring outputs change together and eliminating the counting spikes associated with ripple counters. A buffered CLK input triggers counting on the rising edge of the clock signal.
Perfect for repairs, prototyping, education, and DIY electronics projects.
- Product: SN74HC161N 4-Bit Binary Counter IC
- Type: Synchronous Binary Counter
- Package: DIP-16 (Through-Hole)
- Logic Family: HC (High-Speed CMOS)
- Quantity: Pack of 5 ICs
Features:
- Standard SN74HC161N logic IC
- 4-bit synchronous binary counting
- Synchronous preset (programmable) inputs
- Internal carry look-ahead for fast counting
- Carry output for n-bit cascading
- Count enable inputs (ENP, ENT)
- Buffered clock input (positive-edge triggered)
- Wide operating voltage range: 2V to 6V
- Low power consumption – 80µA max ICC
- Typical propagation delay: 14ns
- ±4mA output drive at 5V
- Outputs can drive up to 10 LSTTL loads
- Low input current – 1µA max
What’s Included:
- 5 x SN74HC161N DIP-16 4-Bit Binary Counter ICs
Great For:
- High-speed counting circuits
- Timers and frequency dividers
- Digital clocks and counters
- N-bit counter cascading designs
- Microcontroller and logic interfacing
- Repairs, replacements, and educational use
Usage Tips:
- Ensure correct use of ENP and ENT for counting and cascading
- Clock input triggers on the rising edge only
- Use carry output for multi-stage counters
- Observe correct IC orientation when installing
- Refer to the SN74HC161N datasheet for full electrical and timing specifications



