SAA7740 datasheet(18/28 Pages) PHILIPS

18 / 28 page

1997 May 30

Philips Semiconductors

Product speciﬁcation

Digital Audio Processing IC (DAPIC)

SAA7740H

th1CA;CAS

column address hold time to CAS

× 1⁄2Tclk − 14

−

th2CA;CAS

column address hold time to CAS precharge

⁄2Tclk − 15

−

tW;CAS

CAS pulse width

× 1⁄2Tclk − 14

−

tp;CAS

CAS precharge time

× 1⁄2Tclk − 11

−

tcy;CAS

CAS page mode cycle time

× 1⁄2Tclk

−

tacc;CA

access time from column address

−

× 1⁄2Tclk − 20

tacc;CAS

access time from CAS

−

× 1⁄2Tclk − 24

tacc;RAS

access time from RAS

−

× 1⁄2Tclk − 22

thDAT;CAS

data hold time from CAS

−

trcy;def

read cycle deﬁnition time

× 1⁄2Tclk − 10

−

tsu;DAT

data input set-up time

⁄2Tclk − 8

−

th;DAT

data input hold time

× 1⁄2Tclk − 16

−

thDAT;RAS

data input hold time from RAS

× 1⁄2Tclk − 15

−

twcy;def

write cycle deﬁnition time

× 1⁄2Tclk − 12

−

toff

output data disable time

−

⁄2Tclk +8

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

Fig.9 I2S-bus timing diagram.

handbook, full pagewidth

MLC157

DATA IN

DATA OUT

t acc

t h2

t su2

t h1

t su1

t HC

t LC

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