HM5164165 Series, HM5165165 Series
AC Characteristics (Ta = 0 to +70°C, VCC = 3.3 V ± 0.3 V, VSS = 0 V)*1, *2, *19, *27
Test Conditions
• Input rise and fall time: 2 ns
• Input pulse levels: VIL = 0 V, VIH = 3.0 V
• Input timing reference levels: 0.8 V, 2.0 V
• Output timing reference levels: 0.8 V, 2.0 V
• Output load: 1 TTL gate + CL (100 pF) (Including scope and jig)
Read, Write, Read-Modify-Write and Refresh Cycles (Common parameters)
Parameter
Random read or write cycle time
RAS precharge time
CAS precharge time
RAS pulse width
CAS pulse width
Row address setup time
Row address hold time
Column address setup time
Column address hold time
RAS to CAS delay time
RAS to column address delay time
RAS hold time
CAS hold time
CAS to RAS precharge time
OE to Din delay time
OE delay time from Din
CAS delay time from Din
Transition time (rise and fall)
Symbol
t RC
t RP
t CP
t RAS
t CAS
t ASR
t RAH
t ASC
t CAH
t RCD
t RAD
t RSH
t CSH
t CRP
t OED
t DZO
t DZC
tT
HM5164165/HM5165165
-5
-6
Min Max Min Max Unit
84
—
104 —
ns
30
—
40
—
ns
8
—
10
—
ns
50
10000 60
10000 ns
8
10000 10
10000 ns
0
—
0
—
ns
8
—
10
—
ns
0
—
0
—
ns
8
—
10
—
ns
12
37
14
45
ns
10
25
12
30
ns
13
—
15
—
ns
35
—
40
—
ns
5
—
5
—
ns
13
—
15
—
ns
0
—
0
—
ns
0
—
0
—
ns
2
50
2
50
ns
Notes
31
28
28
3
4
29
5
6
6
7
12