IS66/67WVR4M8ALL/BLL

Integrated Silicon Solution, Inc.- www.issi.com

22

Rev. A2

07/08/2024

5.10

DEEP POWER DOWN MODE

The Deep Power-down instruction (B9h) is for setting the device on the minimizing the power consumption (enter

into Power-down mode). During this mode, standby current is reduced from Isb1 to Isb2 after tDPDIN.

Figure 5.16 DEEP POWR DOWN ENTRY Timing (SPI MODE)

CLK

0

SI

MSB

LSB

1

0

0

1

1

0

1

1

CE#

DPD mode

Enter DPD

Mode

tDPDIN

1

2

3

4

5

6

7

Figure 5.17 DEEP POWR DOWN ENTRY Timing (QPI MODE)

CLK

0

SIO[3:0]

MSB

LSB

9

B

CE#

DPD mode

Enter DPD

Mode

tDPDIN

1