![](http://datasheet.mmic.net.cn/370000/UD61464DC07_datasheet_16740041/UD61464DC07_11.png)
December 12, 1997
11
UD61464
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AA
AA
AA
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
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AAAA
A
A
A
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AAAA
AAAA
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AAA
AAA
AAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
h(RAS-RA)
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
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AAAA
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AA
AA
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AA
AA
AA
t
cR
FPM Read
t
w(RASH)
t
w(RASL)
t
RASL-CASH
t
RASL-CASL
t
cPG
t
CASH-RASL
V
IH
V
IL
t
w(CASL)
t
w(CASH)
t
w(CASL)
t
w(CASH)
t
CASL-RASH
w(CASL)
t
h(RAS-R)
t
CASH-RASL
t
h(CAS-R)
t
su(R-CAS)
t
h(CAS-R)
t
su(R-CAS)
t
h(CAS-R)
t
su(R-CAS)
t
su(RA-RAS)
V
IH
V
IL
t
h(RAS-RA)
su(CA-CAS)
t
h(CAS-CA)
t
su(CA-CAS)
t
h(CAS-CA)
t
su(CA-CAS)
t
CA-RASH
t
h(CAS-CA)
t
a(CA)
t
RAS-CA
t
a(RAS)
t
a(CA)
t
a(CA)
t
a(CASH)
t
a(CASH)
t
v(CAS)
t
v(CAS)
t
CASL-QX
t
a(G)
t
v(G)
t
CASL-QX
t
a(G)
t
v(G)
t
a(G)
t
v(G)
t
v(CAS)
AAA
AAA
AAA
AAA
t
CASL-QX
V
IH
V
IL
V
IH
V
IL
V
OH
V
OL
V
IH
V
IL
RAS
CAS
W
A0 - A7
DQ0 -
DQ3
G
Outp. D.
Outp. D.
Outp. D.
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
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AAAA
AAAA
AAAA
AAAA
A
A
A
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
t
cW
t
w(RASL)
t
w(RASH)
t
cPG
t
RASL-CASH
t
RASL-CASL
t
CASH-RASL
t
w(CASL)
t
w(CASH)
t
w(CASL)
t
w(CASH)
t
w(CASL)
t
CASL-RASH
t
CASH-RASL
t
h(W-CAS)
t
h(CAS-W)
t
w(W)
t
h(W-CAS)
t
h(CAS-W)
t
w(W)
t
h(W-CAS)
t
h(CAS-W)
t
w(W)
t
su(W-CAS)
t
su(W-CAS)
t
su(W-CAS)
t
CA-RASH
t
h(CAS-
CA)
t
su(CA-CAS)
t
h(CAS-CA)
t
su(CA-CAS)
t
h(CAS-CA)
t
h(RAS-CA)
su(CA-CAS)
AAA
AAA
AAA
t
RAS-CA
t
su(D-CAS)
t
su(RA-RAS)
t
h(CAS-D)
t
su(D-CAS)
t
h(CAS-D)
t
su(D-CAS)
t
h(CAS-D)
t
h(W-RAS)
RAS
CAS
W
A0 - A7
DQ0 -
DQ3
G
Input Data
Input Data
Input Data
FPM Write (CAS-controlled)
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAA
AAA
AAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAAA
AAA
AAA
AAA