SPI 1Gbit  DDP　S70FL01GSAGMFI010

Hello Kojima san,

We do not provide junction to case thermal resistance value for our flash devices. But, we can provide you the thermal parameters below.

1. Theta JA: 38.7 C/W

2. Psi JT: 0.1 C/W

You can use these parameters to calculate operating junction temperature using the below formula.

Tj = (Theta JA * P) + TA

Tj: Operating junction temperature

P: Power consumption of flash device

TA: Ambient temperature

Please see more details in our application note available at: https://www.cypress.com/file/210756/download

Thanks and Regards,

Sudheesh