23LC1024 datasheet(13/33 Pages) MICROCHIP

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DS20005142D-page 13

23A1024/23LC1024

selected and a serial sequence is underway, the HOLD

pin may be pulled low to pause further serial

communication without resetting the serial sequence.

The HOLD pin should be brought low while SCK is low,

otherwise the HOLD function will not be invoked until

the next SCK high-to-low transition. The 23A1024/

23LC1024 must remain selected during this sequence.

The SI and SCK levels are “don’t cares” during the time

the device is paused and any transitions on these pins

will be ignored. To resume serial communication,

HOLD should be brought high while the SCK pin is low,

otherwise serial communication will not be resumed

until the next SCK high-to-low transition.

The SO line will tri-state immediately upon a high-to low

transition of the HOLD pin, and will begin outputting

again immediately upon a subsequent low-to-high

transition of the HOLD pin, independent of the state of

SCK.

Hold functionality is not available when operating in

SQI bus mode.

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