TI E2E Community
Other Analog & Touch
Temperature Sensors Forum
LM95071 CS high time
The LM95071 data sheet (SNIS137B) section 1.2 states that the CS signal should be held high for at least one clock cycle (160ns minimum) between communications.
I would like to confirm if this statement means CS should be held high for 1 clock cycle time on the SPI bus so if the SPI clock has a period of 1000ns it should be held high for 1000ns.
Or is the 160ns period fixed (an internal period) and the time CS should be held high between communication can be 160ns even with an SPI clock of 1000ns.
This time does not see to appear in the timing diagrams/table
It is the second scenario you mentioned and an internal period. Also you need to be aware that since the bus can run at 6/25 MHz that you can aquire data much quicker than a temperature update. It can take a maximum of 228ms for new temperature data to be made available. So if you continously read at a very high rate you will get the same temperature multiple times.
Temperature Sensor ApplicationsTexas Instruments
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.