Hi,
- My design requires the use of battery-backed SRAM. I am planning on using a 1.8V asynchronous SRAM device.
- I am considering using the TPS3610U18 battery-backup supervisor for RAM retention.
- On our design’s that require battery-backed SRAM in a 3.3V signaling environment, we use 3V coin Lithium batteries. These are not available in 1.8V.
Question: Using a 3V coin lithium battery and diodes in series (to drop the 3V down to approx. 1.8V), can I still use the TPS3610U18 supervisor? Would the diodes interfere with the TPS3610U18‘s internal circuit?
Thanks.
Ernest