Internet Data Sheet
HY[B/I]18T256[40/80/16]0A[C/F](L)
256-Mbit Double-Data-Rate-Two SDRAM
5.5
Input / Output Capacitance
This chapter contains the Input / Output Capacitance.
TABLE 30
Input / Output Capacitance
Symbol Parameter
DDR2-800
DDR2-667
DDR2-533
DDR2-400
Unit
Min. Max. Min. Max. Min. Max. Min. Max.
CCK
CDCK
CI
Input capacitance, CK and CK
1.0
—
2.0
1.0
—
2.0
1.0
—
2.0
1.0
—
2.0
pF
pF
pF
Input capacitance delta, CK and CK
0.25
1.75
0.25
2.0
0.25
2.0
0.25
2.0
Input capacitance, all other input-only
pins
1.0
1.0
1.0
1.0
CDI
Input capacitance delta, all other input-
only pins
—
0.25
3.5
—
0.25
3.5
—
0.25
4.0
—
0.25
4.0
pF
pF
pF
CIO
Input/output capacitance,
DQ, DM, DQS, DQS
2.5
—
2.5
—
2.5
—
2.5
—
CDIO
Input/output capacitance delta,
DQ, DM, DQS, DQS
0.5
0.5
0.5
0.5
Rev. 1.50, 2007-12
33
03062006-7M17-PXBC
QIMONDA [ QIMONDA AG ]
