hm5264165f-75 Elpida Memory, Inc., hm5264165f-75 Datasheet - Page 51

• Manufacturer Part Number: hm5264165f-75
• Description: 64m Lvttl Interface Sdram
• Manufacturer: Elpida Memory, Inc.

AC Characteristics (Ta = 0 to +70˚C, V
Parameter
System clock cycle time
CLK high pulse width
CLK low pulse width
Access time from CLK
Data-out hold time
CLK to Data-out low impedance t
CLK to Data-out high
impedance
Input setup time
CKE setup time for power down
exit
Input hold time
Ref/Active to Ref/Active
command period
Active to Precharge command
period
Active command to column
command (same bank)
Precharge to active command
period
Write recovery or data-in to
precharge lead time
Active (a) to Active (b)
command period
Transition time (rise and fall)
Refresh period
(CAS latency = 2)
(CAS latency = 3)
(CAS latency = 2)
(CAS latency = 3)
(CAS latency = 2, 3)
HM5264165F/HM5264805F/HM5264405F-75/A60/B60
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CK
CK
CKH
CKL
AC
AC
OH
LZ
HZ
AS
DS
CESP
AH
DH
RC
RAS
RCD
RP
DPL
RRD
T
REF
, t
, t
, t
Data Sheet E0135H10
, t
CS
CES
CH
CEH
,
,
PC/100
Symbol Min
Tclk
Tclk
Tch
Tcl
Tac
Tac
Toh
Tsi
Tpde
Thi
Trc
Tras
Trcd
Trp
Tdpl
Trrd
CC
, V
HM5264165F/HM5264805F/HM5264405F
-75
10
7.5
2.5
2.5
—
—
2.7
2
—
1.5
1.5
0.8
67.5 —
45
20
20
10
15
1
—
CC
Q = 3.3 V ± 0.3 V, V
Max
—
—
—
—
6
5.4
—
—
5.4
—
—
—
120000 50
—
—
—
—
5
64
-A60
Min
10
10
3
3
—
—
3
2
—
2
2
1
70
20
20
10
20
1
—
Max
—
—
—
—
6
6
—
—
6
—
—
—
—
120000 50
—
—
—
—
5
64
-B60
Min
15
10
3
3
—
—
3
2
—
2
2
1
70
20
20
10
20
1
—
SS
, V
Max
—
—
—
—
8
6
—
—
6
—
—
—
—
120000 ns
—
—
—
—
5
64
SS
Q = 0 V)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
Notes
1
1
1
1, 2
1, 2
1, 2, 3
1, 4
1, 5, 6
1
1, 5
1
1
1
1
1
1
51