參數(shù)資料
型號: IS43R16160A
廠商: Integrated Silicon Solution, Inc.
英文描述: 16Meg x 16 256-MBIT DDR SDRAM
中文描述: 16Meg × 16 256兆位DDR SDRAM的
文件頁數(shù): 26/56頁
文件大小: 792K
代理商: IS43R16160A
26
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00B
11/28/05
ISSI
IS43R16160A
NOTE: (continued)
Row Activating: Starts with registration of an ACTIVE command and ends when
t
RCD is
met. Once
t
RCD is met, the bank will be in the “row active” state.
Read w/Auto-Precharge Enabled: Starts with registration of a READ command with AUTO PRECHARGE
enabled and ends when
t
RP has been met. Once
t
RP is met, the bank will
be in the idle state.
Write w/Auto-Precharge Enabled: Starts with registration of a WRITE command with AUTO PRECHARGE
enabled and ends when
t
RP has been met. Once
t
RP is met, the bank will
be in the idle state.
5. The following states must not be interrupted by any executable command; DESELECT or NOP commands must be
applied on each positive clock edge during these states.
Refreshing: Starts with registration of an AUTO REFRESH command and ends when
t
RC is met. Once
t
RFC is met, the DDR SDRAM will be in the “all banks
idle” state.
Accessing Mode Register: Starts with registration of a MODE REGISTER SET command and ends
when
t
MRD has been met. Once
t
MRD is met, the DDR SDRAM will be in
the “all banks idle” state.
Precharging All: Starts with registration of a PRECHARGE ALL command and ends when
t
RP is met. Once
t
RP is met, all banks will be in the idle state.
6. All states and sequences not shown are illegal or reserved.
7. Not bank-specific; requires that all banks are idle and no bursts are in progress.
8. May or may not be bank-specific; if multiple banks are to be precharged, each must be in a valid state for precharging.
9. Not bank-specific; BURST TERMINATE affects the most recent READ burst, regardless of bank.
10. READs or WRITEs listed in the Command/Action column include READs or WRITEs with AUTO PRECHARGE
enabled and READs or WRITEs with AUTO PRECHARGE disabled.
11. Requires appropriate DM masking.
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