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NT5CC256M16ER-DIB Datasheet(PDF) 34 Page - Nanya Technology Corporation. |
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NT5CC256M16ER-DIB Datasheet(HTML) 34 Page - Nanya Technology Corporation. |
34 / 158 page Version 1.8 34 Nanya Technology Cooperation © 04/2019 All Rights Reserved. DDR3-4Gb E-Die NT5CB(C)512M8EQ/NT5CB(C)256M16ER DLL Switch Sequence from DLL-on to DLL-off CK CK T0 T1 T a 0 T a 1 T b 0 T c 0 T d 0 T d 1 T e 0 T e 1 MRS 2) 1) CMD CKE ODT tMOD T f 0 tCKSRE 4) tCKSRX 5) tXS tMOD NOP SRE 3) NOP SRX 6) NOP MRS 7) NOP Vali d 8) tCKESR Vali d 8) Vali d 8) Tim e break Do not Car e Note: ODT: Static LOW in case RTT_Nom and RTT_WR is enabled, otherwise static Low or High 1) Starting with Idle State, RTT in Hi-Z State. 2) Disable DLL by setting MR1 Bit A0 to 1. 3) Enter SR. 4) Change Frequency. 5) Clock must be stable at least tCKSRX. 6) Exit SR. 7) Update Mode registers with DLL off parameters setting. 8) Any valid command. |
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