7721 Datasheet, PDF (432/577 Pages) List of Unclassifed Manufacturers – H Bridge Power Module

APPLICATION
16.1 Memory connection
<When reading>
E
(OE)
RAS
CAS
MA0–MA9
A16/D0–
A23/D7
<When writing>
E
RAS
CAS
R/W
W
MA0–MA9
A16/D0–
A23/D7
tw(EL) = 135 (min)
tw(RASH) = 60 (min)
td(E-RASL) = 30 (max)
td(E-CASL) = 77.5 (max)
td(RA-RAS) = 5 (min)
Row address
td(E-CA) = 60 (max)
Address
tw(RASL) = 120 (min)
td(RAS-CAS) = 28 (min)
tw(CASL) = 92.5 (min)
td(CA-CAS) = 5 (min)
Column address
tOEA^V = 20 (max)
tAA^V = 35 (max)
tRAC^V = 70 (max)
tCLZ^V = 5 (min)
tCAC^V = 20 (max)
Input data
tsu(DL-E) ≥ 30
tpzx(E-DLZ) = 20 (min)
tOEZ^V = 0–20
tw(RASH) = 60 (min)
tw(EL) = 135 (min)
tw(RASL) = 120 (min)
td(R/W-E) = 20 (min)
td(E-CASL) = 80–115
tw(CASL) = 55 (min)
AC32(tPHL)
tWCS^V = 0 (min)
tWCH^V = 15 (min)
AC32(tPHL)
td(RA-RAS) = 5 (min)
Row address
Address
th(RAS-RA) = 18 (min)
Column address
td(CA-CAS) = 10 (min)
th(CAS-CA) = 60 (min)
Data
V : Specifications of M5M44400CJ-7
The others are specifications of M37721.
tDH^V = 15 (min)
th(E-DLQ) = 18 (min)
(Unit : ns)
Fig. 16.1.25 Timing chart for example of M5M44400CJ (1M ! 4 bits) connection (external bus width = 8 bits)
7721 Group User’s Manual
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