k4h280438d Samsung Semiconductor, Inc., k4h280438d Datasheet - Page 47

• Manufacturer Part Number: k4h280438d
• Description: 128mb D-die X4/8 Ddr Sdram
• Manufacturer: Samsung Semiconductor, Inc.

128Mb D-die(x4/8) DDR SDRAM
9. AC Operating Test Conditions
10. Input/Output Capacitance
(V
Input reference voltage for Clock
Input signal maximum peak swing
Input signal minimum slew rate (for imput only)
Input slew rate (I/O pins)
Input Levels(V
Input timing measurement reference level
Output timing measurement reference level
Output load condition
(V
Input capacitance
(A
Input capacitance( CK, CK )
Data & DQS input/output capacitance
Input capacitance(DM)
DD
DD
0
=2.5V, V
~ A
=2.5, V
1 1
, BA
DDQ
DDQ
IH
0
/V
~ BA
=2.5V, T
=2.5V, T
IL
)
Parameter
Parameter
1,
CKE, CS, RAS,CAS, WE)
A
A
= 25
= 0 to 70 C )
Output
C
Figure 26. Output Load Circuit (SSTL_2)
, f=1MHz)
Table 17. AC operating test conditions
Table 18. Input/output capacitance
Z0=50
C
LOAD
- 47 -
=30pF
V
Symbol
tt
C
C
C
C
=0.5*V
OUT
IN1
IN2
IN3
V
R
REF
DDQ
T
See Load Circuit
=50
+0.31/V
0.5 * V
V
=0.5*V
Min
4.0
4.0
REF
2
2
Value
V
1.5
0.5
0.5
V
REF
tt
DDQ
DDQ
REF
-0.31
Max
3.0
3.0
5.0
5.0
REV. 0.3 Jan.31. 2001
Delta Cap(max)
0.25
0.5
0.5
Unit
V/ns
V/ns
V
V
V
V
V
Note
Unit
pF
pF
pF
pF