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Is there no chip select/clock enable on 74xx595?
I have a project where I have a bunch of stuff, including 74HC595 and 74HC165, on the SPI bus of a microcontroller. The 165s are easily selectable with the CE pin but I can't find anything similar on the 595s.
Here is the datesheet of 74hc595:http://www.componentschip.com/details/Texas-Instruments/74HC595D.html
The reason for doing this is that I am sending the same data to both the 595s and another chip on the bus, at the same time, but the 595s is expecting the data a bit differently. I could save clock cycles if I could disable the 595s' clock input for a small part of the data transmission.
Is there a smart way of doing this or would I have to add circuitry (transistor/gate) for disabling the clock input?
Here is the datesheet of 74hc595:http://www.componentschip.com/details/Texas-Instruments/74HC595D.html
The reason for doing this is that I am sending the same data to both the 595s and another chip on the bus, at the same time, but the 595s is expecting the data a bit differently. I could save clock cycles if I could disable the 595s' clock input for a small part of the data transmission.
Is there a smart way of doing this or would I have to add circuitry (transistor/gate) for disabling the clock input?
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