74LS161 Synch 4-Bit Counter

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74LS161 Synch 4-Bit Counter

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Description: 1. The 74LS161 is a synchronous 4-bit counter IC that counts up from binary zero (0000) to binary fifteen (1111) when the clock input is active. 2. Features: This counter includes five output pins (Q0 through Q3) for counting results, a synchronous reset input, and a gated clock input. It operates on a single positive power supply (+5V), with an operating temperature range of -55°C to +125°C. 3. Applications: The 74LS161 is commonly used in digital systems for generating sequences, pulse trains, or timing applications where precise counting is required. It can be found in clock dividers, sequential logic circuits, and test equipment. 4. Synchronous operation: Unlike asynchronous counters, the 74LS161 updates its outputs simultaneously with each clock pulse, ensuring the correctness and stability of the output sequence. This is particularly useful in applications where precise timing or synchronization is essential. 5. Easy-to-use: The 74LS161's straightforward design and operation

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Specification	Details
Device Type	Synchronous Binary Counter
Number of Bits	4 bits
Counter Function	Up/Down Counter
Clock Input	Active HIGH Positive Edge Triggered
Count Enable (CE)	Active LOW
Reset Input	Asynchronous
Frequency Range	DC to 50 MHz
Propagation Delay	9 ns
Supply Voltage	+5V
Current Consumption	4 mA at +5V TTL load
Package Type	14-pin Dual In-Line Package (DIP)
Operating Temperature	-40°C to +85°C