Does anybody know where can I get a good
electrical description of the Motorola DSP 5680x pins ?
I have to interface the DSP with components
that work with 5V. I guess that the DSP will never take 5V.
In the case of the logic ICs that I use (74HC
and 74ACT families), they have a clamping diode with 10mA max current. Therefore
I can supply them with 3.3V and put 5V in their inputs using current limiting
resistors.
Is this available in 5680x DSPs ? can this be
applied to all digital and analog pins ? If not, what do you do if you need
voltage level translation?
Thanks!
Mariano
Reply by Paco Bogonez●January 26, 20042004-01-26
Hi,
If you want to traslate voltage levels you can use a LVCC3245 part from
Texas Instruments. This chip translates from 3.3V to 5V and viceversa.
I hope this could be useful.
Mariano Filippa
<m...@fibertel.com.ar> wrote:
Does anybody know where can I get a good
electrical description of the Motorola DSP 5680x pins ?
I have to interface the DSP with components
that work with 5V. I guess that the DSP will never take 5V.
In the case of the logic ICs that I use (74HC
and 74ACT families), they have a clamping diode with 10mA max current. Therefore
I can supply them with 3.3V and put 5V in their inputs using current limiting
resistors.
Is this available in 5680x DSPs ? can this be
applied to all digital and analog pins ? If not, what do you do if you need
voltage level translation?
Thanks!
Mariano
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Does anybody know where can I get a good
electrical description of the Motorola DSP 5680x pins ?
I have to interface the DSP with components
that work with 5V. I guess that the DSP will never take 5V.
In the case of the logic ICs that I use (74HC
and 74ACT families), they have a clamping diode with 10mA max current. Therefore
I can supply them with 3.3V and put 5V in their inputs using current limiting
resistors.
Is this available in 5680x DSPs ? can this be
applied to all digital and analog pins ? If not, what do you do if you need
voltage level translation?
Thanks!
Mariano
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"reply" with your email client, only the author of this message will receive
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56F series have 5v tolerant I/O on most
pins. Download the data sheet (not the users manual) for the device
of interest, it will include electrical specs.
Does anybody know where can I get a good
electrical description of the Motorola DSP 5680x pins ?
I have to interface the DSP with components
that work with 5V. I guess that the DSP will never take 5V.
In the case of the logic ICs that I use (74HC
and 74ACT families), they have a clamping diode with 10mA max current. Therefore
I can supply them with 3.3V and put 5V in their inputs using current limiting
resistors.
Is this available in 5680x DSPs ? can this be
applied to all digital and analog pins ? If not, what do you do if you need
voltage level translation?
Thanks!
Mariano
_____________________________________ Note: If you do a simple
"reply" with your email client, only the author of this message will receive
your answer. You need to do a "reply all" if you want your answer to be
distributed to the entire group.
_____________________________________ About this discussion group:
Does anybody know where can I get a good
electrical description of the Motorola DSP 5680x pins ?
I have to interface the DSP with components
that work with 5V. I guess that the DSP will never take 5V.
In the case of the logic ICs that I use (74HC
and 74ACT families), they have a clamping diode with 10mA max current. Therefore
I can supply them with 3.3V and put 5V in their inputs using current limiting
resistors.
Is this available in 5680x DSPs ? can this be
applied to all digital and analog pins ? If not, what do you do if you need
voltage level translation?
Thanks!
Mariano
_____________________________________ Note: If you do a simple
"reply" with your email client, only the author of this message will receive
your answer. You need to do a "reply all" if you want your answer to be
distributed to the entire group.
_____________________________________ About this discussion group:
Does anybody know where can I get a good
electrical description of the Motorola DSP 5680x pins ?
I have to interface the DSP with components
that work with 5V. I guess that the DSP will never take 5V.
In the case of the logic ICs that I use (74HC
and 74ACT families), they have a clamping diode with 10mA max current. Therefore
I can supply them with 3.3V and put 5V in their inputs using current limiting
resistors.
Is this available in 5680x DSPs ? can this be
applied to all digital and analog pins ? If not, what do you do if you need
voltage level translation?
Thanks!
Mariano
_____________________________________ Note: If you do a simple
"reply" with your email client, only the author of this message will receive
your answer. You need to do a "reply all" if you want your answer to be
distributed to the entire group.
_____________________________________ About this discussion group: