Internet Data Sheet
HY[B/I]18T256[40/80/16]0B[C/F](L)
256-Mbit Double-Data-Rate-Two SDRAM
5.5
Input / Output Capacitance
This chapter contains the input / output capacitance.
TABLE 39
Input / Output Capacitance for DDR2-800
Symbol
Parameter
DDR2-800
Min.
Max.
Unit
CCK
CDCK
CI
Input capacitance, CK and CK
1.0
—
2.0
pF
pF
pF
pF
pF
Input capacitance delta, CK and CK
Input capacitance, all other input-only pins
Input capacitance delta, all other input-only pins
0.25
1.75
0.25
3.5
1.0
—
CDI
CIO
Input/output capacitance,
2.5
DQ, DM, DQS, DQS, RDQS, RDQS
CDIO
Input/output capacitance delta,
—
0.5
pF
DQ, DM, DQS, DQS, RDQS, RDQS
TABLE 40
Input / Output Capacitance for DDR2-667
Symbol
Parameter
DDR2-667
Min.
Max.
Unit
CCK
CDCK
CI
Input capacitance, CK and CK
1.0
—
2.0
pF
pF
pF
pF
pF
Input capacitance delta, CK and CK
Input capacitance, all other input-only pins
Input capacitance delta, all other input-only pins
0.25
2.0
1.0
—
CDI
CIO
0.25
3.5
Input/output capacitance,
2.5
DQ, DM, DQS, DQS, RDQS, RDQS
CDIO
Input/output capacitance delta,
—
0.5
pF
DQ, DM, DQS, DQS, RDQS, RDQS
TABLE 41
Input / Output Capacitance for DDR2-533
Symbol
Parameter
DDR2-533
Min.
Max.
Unit
CCK
CDCK
CI
Input capacitance, CK and CK
1.0
—
2.0
pF
pF
pF
pF
Input capacitance delta, CK and CK
Input capacitance, all other input-only pins
Input capacitance delta, all other input-only pins
0.25
2.0
1.0
—
CDI
0.25
Rev. 1.11, 2007-07
36
11172006-LBIU-F1TN
QIMONDA [ QIMONDA AG ]
