TMS416400 Datasheet, PDF (23/30 Pages) Texas Instruments – 4194304-WORD BY 4-BIT HIGH-SPEED DRAMS

RAS
CAS
Address
TMS416400, TMS416400P, TMS417400, TMS417400P
TMS426400, TMS426400P, TMS427400, TMS427400P
4194304-WORD BY 4-BIT HIGH-SPEED DRAMS
SMKS881B – MAY 1995 – REVISED AUGUST 1995
PARAMETER MEASUREMENT INFORMATION
tRC
tRAS
Don’t Care
Don’t Care
tCRP
tASR
tRP
tT
tRPC
Row
tRAH
Don’t Care
Row
W
Don’t Care
DQ1 – DQ4
Don’t Care
OE
Don’t Care
Figure 10. RAS-Only Refresh Timing
tRC
tRP
tRAS
RAS
CAS
W
tRPC
tCSR
tWRP
tCHR
tT
tWRH
Address
Don’t Care
OE
Don’t Care
DQ1 – DQ4
Hi-Z
Figure 11. Automatic-CBR-Refresh-Cycle Timing
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