HYB18H1G321AF QIMONDA [Qimonda AG], HYB18H1G321AF Datasheet - Page 41

• Manufacturer Part Number: HYB18H1G321AF
• Description: GDDR3 Graphics RAM 1-Gbit GDDR3 Graphics RAM
• Manufacturer: QIMONDA [Qimonda AG]

1) At 1000 MHz speed grade only 1-CS mode is supported
2) DLL on mode
3) Timing is calculated for a clock frequency of 700 MHz
4)
5) This value of
6)
7)
8)
9) WTR and
10) WTR and
11) This parameter is defined for commands issued to rank m following rank n where m ≠ n. For all other type of access, standard timing
12) Please round up
13) This parameter is defined per byte
Rev. 0.92, 2007-10
06122007-MW7D-3G3M
Parameter
Power Down Exit time
Other Timing Parameters
RES to CKE setup timing
RES to CKE hold timing
Termination update Keep Out
timing
Rev. ID EMRS to DQ on timing
REV. ID EMRS to DQ off timing
t
t
t
t
parameters do apply.
HP
MRD
RAS,max
CCD
is the lesser of
is either for gapless consecutive reads or gapless consecutive writes.
is defined from MRS to any other command then READ.
is 8×
t
t
WR
WR
t
REFi
t
MRD
start at the first rising edge of CLK after the last valid (falling) WDQS edge of the slowest WDQS signal.
start at the first rising edge of CLK after the last valid (falling) WDQS edge of the slowest WDQS signal.
t
RTW
applies only to the case where the "DLL reset"’ bit is not activated.
t
CL
CAS
latency
minimum and
to the next integer of
t
CH
Symbo
l
t
t
t
t
t
t
XPN
ATS
ATH
KO
RIDon
RIDoff
minimum actually applied to the device CLK, CLK inputs
t
CK
.
–10
min
7
10
10
10
—
—
—
—
—
—
20
20
max
41
–11
7
10
10
10
—
—
min
Limit Values
max
—
—
—
—
20
20
-14
min
8
10
10
10
—
—
HYB18H1G321AF–10/11/14
max
—
—
—
—
20
20
Internet Data Sheet
1-Gbit GDDR3
Unit Note
t
ns
ns
ns
ns
ns
CK