MB86296 Datasheet, PDF (340/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
There are some cases regarding AC specifications of output signals.
The following tables shows typical twelve cases of external SDRFAM capacitance.
(1) External SDRAM capacitance case 1
External SDRAM capacitance
SDRAM x1
Total capacitance
Unit
MCLKO
9.8pF (DRAM CLK 2.5pF, Board pattern 5pF)
pF
MA,MRAS,MCAS,MWE 7.5pF (DRAM A.DQM 2.5pF, Board pattern 5pF)
pF
MD,DQM
9.0pF (DRAM D 4pF, Board pattern 5pF)
pF
Output signals
Parameter
Symbol Condition
Rating *1
Min. Typ. Max.
Unit
MCLKI signal delay time against
MCLKO
tDID
0
4.2 ns
MA, MRAS, MCAS, MWE
Access time
tMAD
1.0
5.0 ns
MDQM Access time
tMDQMD
1.1
5.4 ns
MD Output access time
tMDOD
1.1
5.4 ns
(2) External SDRAM capacitance case 2
External SDRAM capacitance
SDRAM x1
Total capacitance
Unit
MCLKO
24.8pF (DRAM CLK 4.0pF, Board pattern 15pF)
pF
MA,MRAS,MCAS,MWE 20.0pF (DRAM A.DQM 5pF, Board pattern 15pF)
pF
MD,DQM
21.5pF (DRAM D 6.5pF, Board pattern 15pF)
pF
Output signals
Parameter
Symbol Condition
Rating *1
Min. Typ. Max.
Unit
MCLKI signal delay time against
MCLKO
tDID
0
3.5 ns
MA, MRAS, MCAS, MWE
Access time
tMAD
1.0
5.2 ns
MDQM Access time
tMDQMD
1.2
5.5 ns
MD Output access time
tMDOD
1.2
5.5 ns
MB86296S<Coral-PA>
330
Specification Manual Rev0.1