open-source-silicon.dev

2×2 array I wanted to use 

For that following 10ns , 10us and 1-10ms width; amplitude 3.3,0.2 and 2v 

Using the external pulse trying to have control over the pulse using Johnson counter with nor gate so as per the requirement of pulse I could make it big counter 

Also What should be the width for read operation. <@U05GF3APUTG>

On the read operation, are you using an off-chip SMU or are you intending to design an on-chip sense amplifier?  Off-chip read pulse width will depend on your measuring equipment capabilities (pulsed-measurement will be faster than many SMUs).  With a 2x2 array, on-chip could probably go really fast (&lt;5 ns pulse) if the sense amplifier control signals are fast enough.

I think he is doing off-chip measurement. Luke is correct--it depends on the equipment you are using to do current measurement. You just need the pulse to be longer than the capture window (plus settling times)

Okay thank you so much for great information I am trying to do with offchip and while we we do write operation we do verify so for verify also above instructions will apply?

Yes, “verify” just means “read to check if write happened successfully”

<@U01TJJTLSD8> <@U05CEKD6P7Y> hello when the measurement's accuracy relies on the device, could you clarify a few points?  If we utilize the AD3, which has a minimum width and amplitude of 10ns, would this be suitable for read operations?  If we use a 10ns pulse, would adjustments to the set and reset voltages be necessary?

My concern is that the device's amplitude and width may vary, particularly during read operations.  Therefore, is using the 10ns pulse from the AD3 for reading operations reliable?

We are currently in the process of acquiring a new pulse generator.  Until it arrives, I am attempting to utilize the AD3.

10ns seems too short to do a good READ operation with an external device. That is probably ok for SET/RESET though. When doing READ operation on an external device, I've typically used much much longer pulse times, on the order of 1-10 ms

The reason is that you need the voltage to settle properly before measuring the current