HY5DU561622FTP-5 参数 Datasheet PDF下载

1HY5DU561622FTP-5

HY5DU561622FTP-4

WRITE MASK TRUTH TABLE

Function

Data Write

Data-In Mask

Lower Byte Write /

Upper Byte-In Mask

Upper Byte Write /

Lower Byte-In Mask

CKEn-1

H

H

H

H

CKEn

X

X

X

X

/CS, /RAS, /CAS, /WE

X

X

X

X

LDM

L

H

L

H

UDM

L

H

H

L

ADDR

A10/

AP

X

X

X

X

BA

Note

1,2

1,2

1,2

1,2

Note :

1. Write Mask command masks burst write data with reference to LDQS/UDQS(Data Strobes) and it is not related with read data.

2. LDM and UDM control lower byte(DQ0~7) and Upper byte(DQ8~15) respectively.

Rev. 1.1 / Mar. 2008

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