參數(shù)資料
型號(hào)： K4T1G084QQ-HC(L)F7
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： 1Gb Q-die DDR2 SDRAM Specification
中文描述： 1Gb的調(diào)Q DDR2內(nèi)存芯片規(guī)格
文件頁數(shù)： 12/44頁
文件大?。?/td> 891K
代理商： K4T1G084QQ-HC(L)F7
K4T1G084QQ
K4T1G164QQ
Rev. 1.01 November 2007
DDR2 SDRAM
12 of 44
K4T1G044QQ
7.2 Operating Temperature Condition
1. Operating Temperature is the case surface temperature on the center/top side of the DRAM.
2. At 85 - 95
°
C operation temperature range, doubling refresh commands in frequency to a 32ms period ( tREFI=3.9 us ) is required, and to enter to
self refresh mode at this temperature range, an EMRS command is required to change internal refresh rate.
7.3 Input DC Logic Level
7.4 Input AC Logic Level
7.5 AC Input Test Conditions
Note :
1. Input waveform timing is referenced to the input signal crossing through the V
IH/IL
(AC)
level applied to the device under test.
2. The input signal minimum slew rate is to be maintained over the range from V
REF
to V
IH
(AC) min for rising edges and the range from V
REF
to V
IL
(AC)
max for falling edges as shown in the below figure.
3. AC timings are referenced with input waveforms switching from V
IL
(AC) to V
IH
(AC) on the positive transitions and V
IH
(AC) to V
IL
(AC) on the negative
transitions.
Symbol
Parameter
Rating
Units
Notes
TOPER
Operating Temperature
0 to 95
°
C
1, 2
Symbol
Parameter
Min.
Max.
Units
Notes
V
IH
(DC)
DC input logic high
V
REF
+ 0.125
V
DDQ
+ 0.3
V
V
IL
(DC)
DC input logic low
- 0.3
V
REF
- 0.125
V
Symbol
Parameter
DDR2-667, DDR2-800
Units
Min.
Max.
V
IH
(AC)
AC input logic high
V
REF
+ 0.200
V
V
IL
(AC)
AC input logic low
V
REF
- 0.200
V
Symbol
Condition
Value
Units
Notes
V
REF
Input reference voltage
0.5 * V
DDQ
V
1
V
SWING(MAX)
Input signal maximum peak to peak swing
1.0
V
1
SLEW
Input signal minimum slew rate
1.0
V/ns
2, 3
V
DDQ
V
IH
(AC) min
V
IH
(DC) min
V
REF
V
IL
(DC) max
V
IL
(AC) max
V
SS
< AC Input Test Signal Waveform >
V
SWING(MAX)
delta TR
delta TF
V
REF
- V
IL
(AC) max
delta TF
Falling Slew =
Rising Slew =
V
IH
(AC) min - V
REF
delta TR
相關(guān)PDF資料
PDF描述
K4T1G044QQ 1Gb Q-die DDR2 SDRAM Specification
K4T1G044QQ-HC(L)E6 1Gb Q-die DDR2 SDRAM Specification
K4T1G044QQ-HC(L)E7 1Gb Q-die DDR2 SDRAM Specification
K4T1G044QQ-HC(L)F7 1Gb Q-die DDR2 SDRAM Specification
K4T1G084QQ 1Gb Q-die DDR2 SDRAM Specification
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