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SN74LS161 replacement chip. DIP 16, 4-Bit Synchronous Binary Counter.
The 74LS161 is a 4-bit binary counter IC (integrated circuit) that is commonly used in digital electronic circuits. It belongs to the TTL (Transistor-Transistor Logic) family of ICs and is widely used in various applications, including digital counters, frequency dividers, and general-purpose digital systems.
Here are some key features and characteristics of the 74LS161:
It’s important to refer to the datasheet of the specific manufacturer for detailed information on electrical characteristics, timing diagrams, and recommended operating conditions. The 74LS161 is widely available and has been used in a variety of digital electronics projects over the years.
Here’s a list of arcade games and pinball machines that use the the 74LS161 on their PCBs.
The following represents the pinout of the 74LS161N in a DIP-16 package, commonly used in arcade and pinball machines.
You can find the datasheet for the 74LS161 here: 74LS161 datasheet