参数资料
型号: W989D2CBJX6E
厂商: WINBOND ELECTRONICS CORP
元件分类: DRAM
英文描述: 16M X 32 DDR DRAM, 5.4 ns, PBGA90
封装: 8 X 13 MM, 0.80 MM PITCH, HALOGEN FREE AND LEAD FREE, VFBGA-90
文件页数: 4/67页
文件大小: 1469K
代理商: W989D2CBJX6E
W989D6CB / W989D2CB
512Mb Mobile LPSDR
Publication Release Date: Jun, 27, 2011
- 12 -
Revision A01-004
PARAMETER
SYM
-6
-75
UNIT
NOTE
MIN.
MAX.
MIN.
MAX.
CKE Set-up Time
tCKS
1.5
-
ns
CKE Hold Time
tCKH
1
-
ns
Command Set-up Time
tCMS
1.5
-
ns
Command Hold Time
tCMH
1
-
ns
Refresh Time
tREF
64
ms
Mode register Set Cycle
Time
tRSC
12
15
-
ns
8
Ref to Ref/Active
Command period
tRFC
72
-
ns
Self Refresh exit to next
valid command delay
tXSR
115
-
ns
6.6.2 AC Test Condition
SYMBOL
PARAMETER
VALUE
UNIT
VIH(min)
Input High Voltage Level (AC)
0.8 x VDDQ
V
VIL(max)
Input Low Voltage Level (AC)
0.2 x VDDQ
V
VREF
Input Signal Reference Level
0.5 x VDDQ
V
VOTR
Output Signal Reference Level
0.5 x VDDQ
V
SLEW
Input Signal Slew Rate
1
V/ns
Transition times are measured between VIH and VIL.
output
AC TEST LOAD
Z = 50
Ω
VTT=0.9V
RT=50
Ω
VDDQ
VSS
VIH(min)
VREF
VIL(max)
tT
VOTR
CLOAD = 30pF
SLEW = ( VIH(min)- VIL(max) / tT
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