HM5117400B Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics
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HM5117400B Datasheet PDF : 25 Pages
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HM5117400B Series
AC Characteristics (Ta = 0 to +70 C, VCC = 5 V 10%, VSS = 0 V)*1, *2, *18, *19
Test Conditions
Input rise and fall time: 5 ns
Input timing reference levels : 0.8 V, 2.4 V
Output load : 2 TTL gate + CL (100 pF) (Including scope and jig)
Read, Write, Read-Modify-Write and Refresh Cycles (Common parameters)
HM5117400B
-6
-7
Parameter
Symbol Min
Random read or write cycle time tRC
110
precharge time
t RP
40
precharge time
t CP
10
pulse width
t RAS
60
pulse width
t CAS
15
Row address setup time
tASR
0
Row address hold time
tRAH
10
Column address setup time
tASC
0
Column address hold time
tCAH
10
to
delay time
tRCD
20
to column address delay time tRAD
15
hold time
t RSH
15
hold time
t CSH
60
to
precharge time
tCRP
5
to Din delay time
t OED
15
delay time from Din
t DZO
0
delay time from Din
t DZC
0
Transition time (rise and fall)
tT
3
Max Min
—
130
—
50
—
10
10000 70
10000 18
—
0
—
10
—
0
—
15
45
20
30
15
—
18
—
70
—
5
—
18
—
0
—
0
50
3
-8
Max Min
—
150
—
60
—
10
10000 80
10000 20
—
0
—
10
—
0
—
15
52
20
35
15
—
20
—
80
—
5
—
20
—
0
—
0
50
3
Max Unit Notes
—
ns
—
ns
—
ns
10000 ns
10000 ns
—
ns
—
ns
—
ns
—
ns
60
ns 3
40
ns 4
—
ns
—
ns
—
ns
—
ns 5
—
ns 6
—
ns 6
50
ns 7
7
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