SMJ44C256 Datasheet, PDF (17/21 Pages) Texas Instruments – 262144 BY 4-BIT DYNAMIC RANDOM-ACCESS MEMORY

RAS
CAS
A0 – A8
SMJ44C256
262144 BY 4-BIT
DYNAMIC RANDOM-ACCESS MEMORY
SGMS034C – MAY 1989 – REVISED JUNE 1995
PARAMETER MEASUREMENT INFORMATION
tw(RL)
tc(rd)
td(CHRL)
Don’t Care
tsu(RA)
Don’t Care
tw(RH)
tt
td(RHCL)R
Row
th(RA)
Don’t Care
Row
W
Don’t Care
DQ1–DQ4
Don’t Care
G
Don’t Care
Figure 9. RAS-Only Refresh Timing
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