Electronics > Beginners
Why two inputs?
viperidae:
Looking at the datasheet for this bus interface IC, there are two inputs. They're both identical. Why would they do that?
https://www.renesas.com/us/en/doc/products/assp/rej03f0095_ha12240fp.pdf
S1 and S2 are both TX inputs.
vealmike:
--- Quote from: viperidae on February 07, 2019, 07:26:52 am ---Looking at the datasheet for this bus interface IC, there are two inputs. They're both identical. Why would they do that?
https://www.renesas.com/us/en/doc/products/assp/rej03f0095_ha12240fp.pdf
S1 and S2 are both TX inputs.
--- End quote ---
Philosophical rather than electrical your question is. The application must you consider. To see a wood, one must first ignore the trees. Change must come from within, but charge a product of time and current it is.
Yeerrs.
viperidae:
The application for the chip is a physical driver for IEBus, to connect to a NEC/Renesas MCU with a built in IEBus controller.
Those built in controllers only have one TX output.
Ice-Tea:
S1 and S2 are followed by an OR gate. So it allows some sort of multiplexing or logic gating. If you don't need it, tie it to ground.
bsudbrink:
--- Quote from: vealmike on February 07, 2019, 07:45:39 am ---
--- Quote from: viperidae on February 07, 2019, 07:26:52 am ---Looking at the datasheet for this bus interface IC, there are two inputs. They're both identical. Why would they do that?
https://www.renesas.com/us/en/doc/products/assp/rej03f0095_ha12240fp.pdf
S1 and S2 are both TX inputs.
--- End quote ---
Philosophical rather than electrical your question is. The application must you consider. To see a wood, one must first ignore the trees. Change must come from within, but charge a product of time and current it is.
Yeerrs.
--- End quote ---
Stock in Disney/Lucas Arts he owns.
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