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  1. 74HC393 Binary Counter : 4 Steps - Instructables

  2. CD4060 – A Binary Counter With a Built-In Oscillator

  3. CD4020B data sheet, product information and support | TI.com

  4. 74LS93 4 Bit Binary Counter Pinout, Working and Examples

  5. CD4020B 14 bit Binary Counter IC - Microcontrollers Lab

  6. CD4029BE Texas Instruments | Integrated Circuits (ICs) | DigiKey

  7. 74LS169 Synchronous 4-Bit Up/Down Binary Counter IC | Datasheet

  8. 74F579 Octal 8-Bit Bidirectional Binary Counter IC with 3-State …

  9. Binary Counter in Digital Electronics - Online Tutorials Library