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The CD40110 DIP CMOS Decade Up-Down Counter/Latch/Display Driver integrates a decade counter, latch, and display driver, ideal for digital clocks, frequency counters, and other display applications.
The CD40193 DIP 4-Bit Up/Down Binary Counter is a CMOS-based counter with a 4-bit wide data path, allowing counting from 0 to 15 in both up and down directions. Featuring an asynchronous reset and up/down control, it’s ideal for applications in frequency division, digital clocks, event counting, state machines, and timing circuits. The CD40193 offers low power consumption, high noise immunity, and a wide voltage range for flexible integration in digital systems.
The CD4033 DIP Decade Counter with Decoded 7-Segment Display Out is a CMOS IC that combines a decade counter (0–9) with decoded outputs to drive seven-segment displays directly, making it ideal for use in digital clocks, timers, counters, and other display-based systems. With BCD input and reset capabilities, the CD4033 operates over a wide voltage range and comes in a DIP-16 package for easy integration into PCBs and breadboards.
The CD4022 DIP 4-Bit Binary Up/Down Counter is a versatile CMOS-based counter capable of counting from 0 to 15 in both up and down modes. It features a ripple carry output, asynchronous reset, and low power consumption, making it ideal for timing, frequency division, and event counting applications.
TIP35C TO247 NPN Power Transistors 25A, 40-100V, 125W 
BC550C TO92 45V 100mA NPN Transistor 
MAX9814 Electret Microphone Amplifier Stable Module with Auto Gain Control 
