IS43LR16640C datasheet(21/47 Pages) ISSI

21 / 47 page

Rev. 0A | October 2022

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IS43/46LR32320C

IS43/46LR16640C

9. The following states must not be interrupted by any executable command; DESELECT or NOP commands must be applied to each

positive clock edge during these states.

• Refreshing: Starts with registration of an AUTO REFRESH command and ends when tRFC is met.

Once tRFC is met, the Mobile DDR will be in an ''all banks idle'' state.

• Accessing Mode Register: Starts with registration of a MODE REGISTER SET command and ends when tMRD has been met.

Once tMRD is met, the Mobile DDR will be in an ''all banks idle'' state.

• Precharging All: Starts with the registration of a PRECHARGE ALL command and ends when tRP is met.

Once tRP is met, the bank will be in the idle state.

10. Not bank-specific; requires that all banks are idle and no bursts are in progress.

11. Not bank-specific. BURST TERMINATE affects the most recent READ burst, regardless of bank.

12. Requires appropriate DM masking.

13. A WRITE command may be applied after the completion of the READ burst; otherwise, a Burst terminate must be used to end the

READ prior to asserting a WRITE command.

IS43LR16640C Scheda tecnica(PDF) 21 Page - Integrated Silicon Solution, Inc