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STPCI2GDY 数据表(PDF) 51 Page - STMicroelectronics |
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STPCI2GDY 数据表(HTML) 51 Page - STMicroelectronics |
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51 / 111 page  ELECTRICAL SPECIFICATIONS Issue 1.0 - July 24, 2002 51/111 The PC100 memory is recommended to reach 90MHz operation. Table 4-11. SDRAM Bus AC Timings - Industrial Temperature Range Name Parameter Min Typ Max Unit Tcycle MCLKI Cycle Time 11 ns Thigh MCLKI High Time 4 ns Tlow MCLKI Low Time 4 ns MCLKI Rising Time 1 ns MCLKI Falling Time 1 ns Tdelay MCLKx to MCLKI delay 1.8 ns Toutput MCLKI to RAS# Valid 1.7 6.5 ns MCLKI to CAS# Valid 1.7 6.5 ns MCLKI to CS# Valid 1.7 6 ns MCLKI to DQM[ ] Outputs Valid 26 ns MCLKI to MD[ ] Outputs Valid 27.8 ns MCLKI to MA[ ] Outputs Valid 1.7 6.5 ns MCLKI to MWE# Valid 1.7 6 ns Tsetup MD[63:0] setup to MCKLI 7.5 ns Thold MD[63:0] hold from MCKLI -0.36 ns Note: These timings are for a load of 50pF, part running at 90MHz and ReadCLK not activated |
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