| 전자부품 데이터시트 검색엔진 |
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CS89712 데이터시트(PDF) 156 Page - Cirrus Logic |
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CS89712 데이터시트(HTML) 156 Page - Cirrus Logic |
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156 / 170 page ![]() CS89712 156 DS502PP2 NOP T1 T2 T3 T4 T6 T7 T8 T9 T10 CLK nRAS / nCAS / nWE T0 NOP NOP NOP (ACT) CKE nCS 1 dev 1 dev DQM DQ DI0 DI1 DI2 DI3 Bank sel A10 (prech sel) addr CAS lat 3 tRCD tRP tRAS tRC auto precharge row col row bank bank T5 NOP T11 ACT NOP READ NOP NOP NOP NOP Figure 28. SDRAM Read Cycles CAS Latency = 3 Note: tRC1 (REF to REF/ACT command period [refresh]) = 90 ns or 4 cycles at 36 MHz. T1 T2 T3 T4 T5 T6 T7 CLK nRAS / nCAS / nWE NOP ACT NOP T0 WRITE NOP NOP NOP NOP NOP CKE nCS 1 dev 1 dev DQM DQ Bank sel A10 (prech sel) addr tRCD tRP tRAS tRC tDPL DO0 DO1 DO2 DO3 (ACT) row col row bank bank auto precharge Figure 29. SDRAM Write Cycles Note: tDPL (data in to PRE command period command) = 10 ns or 1 cycle at 36 MHz. |
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