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128M GDDR SDRAM
K4D261638F
- 11 -
Rev. 1.2 (Jan. 2004)
DC CHARACTERISTICS
Note :
1. Measured with outputs open.
2. Refresh period is 32ms.
Parameter
Symbol
Test Condition
Version
Unit Note
-25
-2A
-33
-36
-40
-50
Operating Current
(One Bank Active)
I
CC1
Burst Lenth=2
t
RC
≥
t
RC
(min)
I
OL
=0mA,
t
CC
=
t
CC
(min)
TBD
210
190
180
170
150
mA
1
Precharge Standby Current
in Power-down mode
I
CC2
P
CKE
≤
V
IL
(max),
t
CC
=
t
CC
(min)
TBD
60
45
mA
Precharge Standby Current
in Non Power-down mode
I
CC2
N
CKE
≥
V
IH
(min), CS
≥
V
IH
(min),
t
CC
=
t
CC
(min)
TBD
90
75
70
65
60
mA
Active Standby Current
power-down mode
I
CC3
P
CKE
≤
V
IL
(max),
t
CC
=
t
CC
(min)
TBD
75
65
60
55
50
mA
Active Standby Current in
in Non Power-down mode
I
CC3
N
CKE
≥
VIH(min), CS
≥
VIH(min),
t
CC
=
t
CC
(min)
TBD
135
100
100
95
90
mA
Operating Current
( Burst Mode)
I
CC4
t
RC
≥
t
RFC
(min)
t
RC
≥
t
RFC
(min)
Page Burst, All Banks activated.
TBD
400
290
275
260
245
mA
Refresh Current
I
CC5
t
RC
≥
t
RFC
(min)
TBD
245
210
200
195
190
mA
2
Self Refresh Current
I
CC6
CKE
≤
0.2V
4
mA
Recommended operating conditions Unless Otherwise Noted, T
A
=0 to 65
°
C)
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
3. For the K4D261638F-TC25/2A, VDD & VDDQ = 2.8V+0.1V.
Note :
AC INPUT OPERATING CONDITIONS
Recommended operating conditions(Voltage referenced to V
SS
=0V, V
DD
=2.5V+
5%, V
DDQ
=2.5V+
5%,T
A
=0 to 65
°
C)
Parameter
Symbol
Min
Typ
Max
Unit
Note
Input High (Logic 1) Voltage; DQ
V
IH
V
REF
+0.35
-
-
V
Input Low (Logic 0) Voltage; DQ
V
IL
-
-
V
REF
-0.35
V
Clock Input Differential Voltage; CK and CK
V
ID
0.7
-
V
DDQ
+0.6
V
1
Clock Input Crossing Point Voltage; CK and CK
V
IX
0.5*V
DDQ
-0.2
-
0.5*V
DDQ
+0.2
V
2