AT25QL641 datasheet(46/80 Pages) RENESAS

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DS-AT25QL641-130 Rev. G

Page 46

Sep 14, 2022

AT25QL641 Datasheet

8.23 Deep Power-Down (B9h)

Executing the Deep Power-Down command is the best way to put the device in the lowest power consumption.

The Deep Power-Down command reduces the standby current (from ICC1 to ICC2, as specified in Table 26, AC

Electrical Characteristics). The command is entered by driving the CS pin low with following the command code

B9h. See Figure 40 and Figure 41.

The CS pin must go high exactly at the byte boundary (the latest eighth bit of command code been latched-

in); otherwise, the Deep Power-Down command is not executed. After CS goes high, it requires a delay of tDP and

the Deep Power-Down mode is entered. While in the Deep Power-Down state, the Release Deep Power-Down /

Device ID (ABh) command, which restores the device to normal operation, is recognized. All other commands are

ignored, including the Read Status Register (05h) command, which is always available during normal operation.

Figure 40. Deep Power-Down Command (SPI Mode)

Figure 41. Deep Power-Down Command (QPI Mode)

246

Mode 3

Mode 0

Mode 3

Mode 0

Power-Down Current

Stand-By Current

SCK

Command (B9h)

SCK

Mode 3

Command

B9h

Mode 0

Mode 3

Mode 0

tDP

Power-Down mode

Stand-By mode

AT25QL641 Datasheet(PDF) 46 Page - Renesas Technology Corp