HY5DU281622ETP-36 参数 Datasheet PDF下载

1HY5DU281622ETP

WRITE MASK TRUTH TABLE

Function

Data Write

Data-In Mask

CKEn-1

H

H

CKEn

X

X

/CS, /RAS,

/CAS, /WE

X

X

DM

L

H

ADDR

A8/

AP

X

X

BA

Note

1,2,3

1,2,3

Note :

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

2. LDM corresponds to the data on DQ0-Q7 and UDM corresponds to the data on DQ8-Q15

3. In here, Don’t Care means logical value only, it doesn’t mean ’Don’t care for DC level of each signals’. DC level should be out of

V

IHmin

~ V

ILmax

Rev. 1.0 / Oct. 2005

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