k4h2g0638a Samsung Semiconductor, Inc., k4h2g0638a Datasheet - Page 22

• Manufacturer Part Number: k4h2g0638a
• Description: Stacked 2gb A-die Sdram
• Manufacturer: Samsung Semiconductor, Inc.

DDR SDRAM stacked 2Gb A-die (x4)
Figure 4. I/V characteristics for input/output buffers:Pull up(above) and pull down(below)
90
80
70
60
50
40
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20
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0
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Pulldown Characteristics for Weak Output Driver
Pullup Characteristics for Weak Output Driver
1.0
1.0
2.0
2.0
Vout(V)
Vout(V)
Rev. 0.0 June. 2005
DDR SDRAM
Maximum
Typical High
Typical Low
Minumum
Typical Low
Typical High
Maximum
Minimum
Preliminary