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H5GQ1H24AFR-R0C Datasheet(PDF) 12 Page - Hynix Semiconductor

Part # H5GQ1H24AFR-R0C
Description  1Gb (32Mx32) GDDR5 SGRAM
PDF  173 Pages
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Manufacturer  HYNIX [Hynix Semiconductor]
Direct Link  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

H5GQ1H24AFR-R0C Datasheet(HTML) 12 Page - Hynix Semiconductor

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This document is a general product description and is subject to change without notice. Hynix Semiconductor does not assume any
responsability for use of circuits described. No patent licenses are implied.
Rev. 1.0 /Nov. 2009
12
H5GQ1H24AFR
1) Assert RESET# Low anytime when reset is needed.
2) Hold RESET# Low for minimum 100ns. Assert and hold NOP command.
3) Set CKE# for the desired ADR/CMD ODT settings, then bring RESET# High to latch in the logic state of 
CKE#; tATS and tATH must be met during this procedure. Keep EDC1 (MF=0) / EDC2 (MF=1) at the same 
logic level as during power‐up initialization as device functionality is not guaranteed if the I/O width has 
changed.
4) Continue with step 9 of the power‐up initialization sequence.
Figure 4: Initialization with Stable Power
TRAIN / MRS
ADR
CKE#
min. 100 ns
CMD
VDD, VDDQ
VREFD/C
RESET#
tATS tATH
DQ<31:0>,
DBI#<3:0>
ADR
EDC<3:0>
All Banks
Precharge
WCK
NOP
NOP
CK#
CK
WCK#
PRE
NOP
tRP
Execution of steps
13‐21 in Power‐up
sequence
TRAIN / MRS
TRAIN / MRS
ADR
A.C.
ADR ADR
min. 200 μs
NOP
NOP
TRAIN / MRS
A.C.
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2.  Device functionality is not guaranteed if x32/x16 mode is not the same as during power‐up initialization.
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Notes:  1.  A.C. = Any Command



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