Description:The Intersil 82C84A is a high performance CMOS Clock Generatordriver which is designed to service the requirements of both CMOS and NMOS microprocessors such as the 80C86, 80C88, 8086 and the 8088. The chip contains a crystal controlled oscillator, a divide-bythree counter and complete "Ready" synchronization and reset logic. Static CMOS circuit design permits operation with an external frequency source from DC to 25MHz. Crystal controlled operation to 25MHz is guaranteed with the use of a parallel, fundame
The recommended operating temperature range for CP82C84A is -40°C to +85°C, as specified in the datasheet. However, it's essential to note that the device can operate at a wider temperature range, but with reduced performance and reliability.
The CP82C84A has an internal POR and BOD circuitry. To handle POR, ensure that the power supply voltage rises monotonically and reaches the minimum operating voltage (VDD) within the specified time. For BOD, the device will reset if the voltage drops below the brown-out detection threshold (VBOD). You can adjust the BOD threshold by connecting an external resistor and capacitor to the BOD pin.
The maximum clock frequency supported by CP82C84A is 24 MHz, as specified in the datasheet. However, the actual clock frequency may vary depending on the system design, clock source, and operating conditions.
The CP82C84A has a built-in UART interface. To configure it, you need to set the UART mode, baud rate, data bits, parity, and stop bits using the UART control registers. You can also use the internal baud rate generator or an external clock source. Refer to the datasheet and application notes for detailed configuration and programming information.
The WDT is a safety feature that resets the device if it detects a system malfunction or software hang-up. You can enable or disable the WDT using the WDT control register. The WDT timeout period can be set using the WDT prescaler and clock source. The WDT can be used to detect system failures, such as software crashes or infinite loops, and reset the device to a safe state.
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