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GS82583EQ18GK-400I Fiches technique(PDF) 8 Page - GSI Technology

No de pièce GS82583EQ18GK-400I
Description  8Mb x 36 and 16Mb x 18 organizations available
Download  26 Pages
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Fabricant  GSI [GSI Technology]
Site Internet  http://www.gsitechnology.com
Logo GSI - GSI Technology

GS82583EQ18GK-400I Fiches technique(HTML) 8 Page - GSI Technology

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GS82583EQ18/36GK-500/450/400
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 1.06 8/2017
8/26
© 2014, GSI Technology
Input Timing
These devices utilize three pairs of positive and negative input clocks, CK & CK and KD[1:0] & KD[1:0], to latch the various
synchronous inputs. Specifically:
CK and CK latch all address (SA) inputs.
CK latches all control (R, W) inputs.
KD[1:0] and KD[1:0] latch particular write data (D) inputs, as follows:
KD0 and KD0 latch D[17:0] in x36, and D[8:0] in x18.
KD1 and KD1 latch D[35:18] in x36, and D[17:9] in x18.
Output Timing
These devices provide two pairs of positive and negative output clocks (aka “echo clocks”), CQ[1:0] & CQ[1:0], whose timing is
tightly aligned with read data in order to enable reliable source-synchronous data transmission.
These devices utilize a DLL to control output timing. When the DLL is enabled, it generates 0
 and 180 phase clocks from CK
that control read data output clock (CQ, CQ), read data (Q), and read data valid (QVLD) output timing, as follows:
CK+0 generates CQ[1:0], CQ[1:0], Q1 active, and Q2 inactive.
• .
CK+180 generates CQ[1:0], CQ[1:0], Q1 inactive, Q2 active, and QVLD active/inactive.
Note: Q1 and Q2 indicate the first and second pieces of read data transferred in any given clock cycle during Read operations.
When the DLL is enabled,
CQ is aligned to CK. See the AC Timing Specifications for more information.
CQ[1:0] and CQ[1:0] align with particular Q and QVLD outputs, as follows:
CQ0 and CQ0 align with Q[17:0], QVLD0 in x36 devices, and Q[8:0], QVLD0 in x18 devices.
CQ1 and CQ1 align with Q[35:18], QVLD1 in x36 devices, and Q[17:9], QVLD0 in x18 devices.


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