TMS44409, TMS44409P

1048576-WORD BY 4-BIT

DYNAMIC RANDOM-ACCESS MEMORY

SMHS563 – JULY1995

17

POST OFFICE BOX 1443

PARAMETER MEASUREMENT INFORMATION

RAS

CAS

A0 – A9

W

OE

DQ1 – DQ4

Row

Column

Don’t Care

See Note A

See Note A

Don’t Care

Valid

In

tRP

Valid Data In

Don’t Care

Don’t Care

Don’t Care

Don’t Care

Don’t Care

Column

tRASP

tCSH

tHPC

tRSH

tCAS

tRCD

tASC

tRAH

tCAH

tCP

tASR

tWP

tCWL

tRWL

tDH

tDH

tDS

tDS

tOEH

tOEH

tOED

tRAL

tCRP

tCWL

tRAD

tCAL

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. EDO-Write-Cycle Timing