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The Harris Semiconductor CD4516BD3 is a 4-bit synchronous binary up/down counter with asynchronous preset and clear. It belongs to the CD4000 series of integrated circuits and is commonly used in digital electronics applications. Functions: 1. 4-bit synchronous binary up/down counting 2. Asynchronous preset for loading an initial count value 3. Asynchronous clear for resetting the counter 4. Synchronously loads data when enabled Applications: 1. Digital counters and sequencers 2. Industrial control systems 3. Test equipment 4. Timing circuits 5. Digital clocks Alternative Components: 1. Texas Instruments CD4516B 2. Nexperia HEF4516B 3. ON Semiconductor MC14516B Embedded Modules: 1. Arduino Libraries 2. Raspberry Pi GPIO interfacing 3. Microcontroller development boards --- Related Q&A: 1. Q: What is the maximum clock frequency supported by the CD4516BD3 counter? - A: The CD4516BD3 can typically support clock frequencies up to 10MHz. 2. Q: Can the CD4516BD3 be cascaded to create higher bit-count counters? - A: Yes, multiple CD4516BD3 counters can be cascaded to create larger bit-count counters when needed. 3. Q: How do you set the initial count value using the asynchronous preset in CD4516BD3? - A: The asynchronous preset pin (PE) is used to load the initial count value into the counter when activated with a low pulse. 4. Q: What is the power supply voltage range for CD4516BD3? - A: The CD4516BD3 typically operates within a power supply voltage range of 3V to 18V. 5. Q: Can the CD4516BD3 operate in both up and down counting modes simultaneously? - A: No, the CD4516BD3 can operate either in up-counting mode, down-counting mode, or in a hold state, but not in both up and down counting simultaneously.