SMJ44C256 データシートの表示（PDF） - Austin Semiconductor

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SMJ44C256

262144 BY 4-BIT DYNAMIC RANDOM-ACCESS MEMORY

Austin Semiconductor 

SMJ44C256

262144 BY 4-BIT

DYNAMIC RANDOM-ACCESS MEMORY

SGMS034C – MAY 1989 – REVISED JUNE 1995

PARAMETER MEASUREMENT INFORMATION

RAS

tw(RL)

tc(W)

tt

CAS

td(RLCL)

td(CLRH)

td(RLCH)

tw(CL)

tsu(RA)

th(RA)

tsu(CA)

th(RLCA)

td(CACH)

td(CARH)

A0 – A8

Row

Column

Don’t Care

td(RLCA)

W

Don’t Care

th(CA)

tsu(WCH)

tsu(WRH)

th(RLW)

th(CLW)

tsu(WCL)

tsu(D)

th(RLD)

tw(WL)

th(D)

DQ1 – DQ4

Valid Data

tw(RH)

td(CHRL)

tw(CH)

Don’t Care

Don’t Care

G

Don’t Care

Figure 3. Early-Write-Cycle Timing

• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443

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