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GLT5160L16I-7TC Datasheet(PDF) 11 Page - List of Unclassifed Manufacturers |
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GLT5160L16I-7TC Datasheet(HTML) 11 Page - List of Unclassifed Manufacturers |
11 / 45 page 11 G-LINK Technology DEC. 2003 (Rev.2.4) Read After tRCD from the bank activation, a READ command can be issued. 1st output data is available after the CAS Latency from the READ, followed by (BL-1) consecutive data when the Burst Length is BL. The start address is specified by A[7:0], and the address sequence of burst data is defined by the Burst Type. A READ com- mand may be applied to any active bank, so the row precharge time (tRP) can be hidden behind continuous output data (in case of BL = 4) by interleaving the dual banks. When A[10] is high at a READ command, the auto-precharge (READA) is performed. Any com- mand (READ, WRITE, PRE, ACT) to the same bank is inhibited till the internal precharge is complete. The internal precharge start tim- ing depends on CAS Latency. The next ACT command can be issued after tRP from the internal precharge timing. CLK Figure 4. Dual Bank Interleaving READ (BL=4, CL=3) Command A[9:0] A[10] BA DQ ACT REA ACT PRE Qa2 Qa1 Qa0 Qa3 REA Xa Ya Xb Yb Xa 0 Xb 0 0 0 0 1 0 1 Qb0 Qb1 Qb2 tRCD CAS Latency Burst Length CLK Figure 5. READ with Auto-Precharge (BL=4, CL=3) Command A[9:0] A[10] BA DQ ACT READ A ACT Qa2 Qa1 Qa0 Qa3 tRCD Xa Y Xa Xa 1 Xa 0 0 0 tRP Internal Precharge begins CLK Figure 6. READ Auto-Precharge Timing (BL=4) Command CL=3 DQ CL=2 DQ ACT READ A Internal Precharge Start Timing Qa2 Qa1 Qa0 Qa3 Qa2 Qa1 Qa0 Qa3 |
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