TMS44400, TMS44400P, TMS46400, TMS46400P

1048576-WORD BY 4-BIT

DYNAMIC RANDOM-ACCESS MEMORIES

SMHS562C – MAY 1995 – REVISED NOVEMBER 1996

16

POST OFFICE BOX 1443

PARAMETER MEASUREMENT INFORMATION

RAS

CAS

A0 – A9

W

Row

Column

Don’t Care

See Note A

See Note A

Valid

In

tRP

Valid Data In

Don’t Care

Don’t Care

Don’t Care

Don’t Care

Column

tRASP

tCSH

tPC

tCRP

tRSH

tCAS

tRCD

tRAH

tCAH

tCP

tRAD

tCWL

tWP

tRWL

tDH

tDH

tDS

tDS

tRAL

tAR

tDHR

tWCR

See Note A

tCAL

DQ1 – DQ4

Don’t Care

Don’t Care

OE

tOEH

tOED

tOEH

tASR

tASC

tCWL

NOTES: A. Referenced to CAS or W, whichever occurs last

B. A read cycle or a read-write cycle can be intermixed with write cycles as long as read and read-write timing specifications are not

violated.

Figure 9. Enhanced-Page-Mode Write-Cycle Timing