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MC9328MXL Folha de dados(PDF) 61 Page - Freescale Semiconductor, Inc |
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MC9328MXL Folha de dados(HTML) 61 Page - Freescale Semiconductor, Inc |
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61 / 84 page ![]() Specifications MC9328MXL Advance Information, Rev. 5 Freescale Semiconductor 61 Active which sets up the status register read. The bank and row addresses are driven during this command. The third command of the triplet is Read. Bank and column addresses are driven on the address bus during this command. Data is returned from memory on the low order 8 data bits following the CAS latency. Figure 48. SDRAM/SyncFlash Read Cycle Timing Diagram Table 23. SDRAM Timing Parameter Table Ref No. Parameter 1.8V ± 0.10V 3.0V ± 0.30V Unit Minimum Maximum Minimum Maximum 1 SDRAM clock high-level width 2.67 – 4 – ns 2 SDRAM clock low-level width 6– 4– ns 3 SDRAM clock cycle time 11.4 – 10 – ns 3S CS, RAS, CAS, WE, DQM setup time 3.42 – 3 – ns SDCLK CS CAS WE RAS ADDR DQ DQM ROW/BA COL/BA 3S 3H 3S 3H 3S 3S 3H 3H 3H 4S 4H 5 3S 3 2 1 8 Data 7 6 Note: CKE is high during the read/write cycle. |
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