HY5FS123235AFCP-09 datasheet(35/74 Pages) HYNIX

部件名	HY5FS123235AFCP-09

功能描述	512M (16Mx32) GDDR4 SDRAM

Download	74 Pages

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制造商	HYNIX [Hynix Semiconductor]

网页	http://www.skhynix.com/kor/main.do

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35 / 74 page

Rev. 1.2 /June. 2008

35

HY5FS123235AFCP

4. AUTO REFRESH and MODE REGISTER SET commands may only be issued when all banks are idle.

5. All states and sequences not shown are illegal or reserved.

6. 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.

7. Requires appropriate DM masking.

Table 11 Minimum Delay Between Commands to Different Banks with Auto

Precharge Enabled

CL = CAS latency (CL) rounded up to the next integer

BL = Burst length

WL = WRITE latency

From Command

To Command

Minimum delay

(with concurrent auto precharge)

WRITE

with AUTO

PRECHARGE

READ or READ with AUTO PRECHARGE

[WL + (BL/2)] tCK + tWTR

WRITE or WRITE with AUTO PRECHARGE

(BL/2) tCK

PRECHARGE

2 tCK

ACTIVE

2 tCK

READ

with AUTO

PRECHARGE

READ or READ with AUTO PRECHARGE

(BL/2) * tCK

WRITE or WRITE with AUTO PRECHARGE

[CL+(BL/2) + 2 - WL] * tCK

PRECHARGE

2 tCK

ACTIVE

2 tCK

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