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K4D553235F-GC25 Datasheet

  • K4D553235F-GC25

  • 256M GDDR SDRAM

  • 18頁(yè)

  • SAMSUNG   SAMSUNG

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K4D553235F-GC
DC CHARACTERISTICS
Parameter
Operating Current
(One Bank Active)
Precharge Standby Current
in Power-down mode
Precharge Standby Current
in Non Power-down mode
Active Standby Current
power-down mode
Active Standby Current
in Non Power-down mode
Operating Current
( Burst Mode)
Refresh Current
Self Refresh Current
Operating Current
(4Bank interleaving)
Note :
1 Refresh period is 32ms
256M GDDR SDRAM
Recommended operating conditions Unless Otherwise Noted, T
A
=0 to 65
擄
C)
Symbol
I
CC1
I
CC2
P
I
CC2
N
I
CC3
P
I
CC3
N
I
CC4
I
CC5
I
CC6
I
CC7
Test Condition
Burst Lenth=2
t
RC
鈮?/div>
t
RC
(min)
I
OL
=0mA,
t
CC
=
t
CC
(min)
CKE
鈮?/div>
V
IL
(max),
t
CC
=
t
CC
(min)
CKE
鈮?/div>
V
IH
(min), CS
鈮?/div>
V
IH
(min),
t
CC
=
t
CC
(min)
CKE
鈮?/div>
V
IL
(max),
t
CC
=
t
CC
(min)
CKE
鈮?/div>
VIH(min), CS
鈮?/div>
VIH(min),
t
CC
=
t
CC
(min)
I
OL
=0mA ,
t
CC
=
t
CC
(min),
Page Burst, All Banks activated.
Version
-25
270
10
57
60
201
368
314
7
615
-2A
242
10
52
55
183
342
286
7
533
-33
238
10
47
48
164
314
274
7
479
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
1
Note
t
RC
鈮?/div>
t
RFC
(min)
CKE
鈮?/div>
0.2V
Burst Length=4
t
RC
鈮?/div>
t
RC
(min)
I
OL
=0mA,
t
CC
=
t
CC
(min)
AC INPUT OPERATING CONDITIONS
Recommended operating conditions(Voltage referenced to V
SS
=0V, T
A
=0 to 65擄C)
Parameter
Input High (Logic 1) Voltage ;DQ
Input Low (Logic 0) Voltage; DQ
Clock Input Differential Voltage; CK and CK
Clock Input Crossing Point Voltage; CK and CK
Symbol
V
IH
V
IL
V
ID
V
IX
Min
V
REF
+0.35
-
0.7
0.5*V
DDQ
-0.2
Typ
-
-
-
-
Max
-
V
REF
-0.35
V
DDQ
+0.6
0.5*V
DDQ
+0.2
Unit
V
V
V
V
Note
1
2
Note :
1. V
ID
is the magnitude of the difference between the input level on CK and the input level on CK
2. The value of V
IX
is expected to equal 0.5*V
DDQ
of the transmitting device and must track variations in the DC level of the same
- 11 -
Rev 1.6 (May 2005)

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