CLOCKING OPTIONS ON THE TMS320C5X

There are three speed versions available on most TMS320C5x devices-50 ns, 35 ns, and 25 ns. If you desire to run these devices at full speed, the clock input required is 20 MHz, 57 MHz, and 80 MHz, respectively. In a standard configuration, the input clock is divided by two to get the internal machine cycle: 40 MHz/2 = 20 MHz = 50 ns. The CLKOUT1 pin will run at the same speed as the internal machine rate. This document discusses how a designer can reduce the frequency of the input clock rate.

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.

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