參數(shù)資料
型號(hào): W3EG72255S202AJD3M
廠(chǎng)商: WHITE ELECTRONIC DESIGNS CORP
元件分類(lèi): DRAM
英文描述: 256M X 72 DDR DRAM MODULE, 0.8 ns, DMA184
封裝: DIMM-184
文件頁(yè)數(shù): 10/15頁(yè)
文件大小: 305K
代理商: W3EG72255S202AJD3M
W3EG72255S-D3
-JD3
-AJD3
4
White Electronic Designs
November 2004
Rev. 2
PRELIMINARY
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
Parameter
Symbol
Value
Units
Voltage on any pin relative to VSS
VIN, VOUT
-0.5 - 3.6
V
Voltage on VCC supply relative to VSS
VCC, VCCQ
-1.0 - 3.6
V
Storage Temperature
TSTG
-55 - +150
°C
Power Dissipation
PD
27
W
Short Circuit Current
I0S
50
mA
Note: Permanent device damage may occur if ‘ABSOLUTE MAXIMUM RATINGS’ are exceeded.
Functional operation should be restricted to recommended operating condition.
Exposure to higher than recommended voltage for extended periods of time could affect device reliability
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Unit
Supply Voltage
VCC
2.3
2.7
V
Supply Voltage
VCCQ
2.3
2.7
V
Reference Voltage
VREF
1.15
1.35
V
Termination Voltage
VTT
1.15
1.35
V
Input High Voltage
VIH
VREF + 0.15
VCCQ + 0.3
V
Input Low Voltage
VIL
-0.3
VREF - 0.15
V
Output High Voltage
VOH
VTT + 0.76
V
Output Low Voltage
VOL
—VTT - 0.76
V
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
CIN1
6.25
pF
Input Capacitance (RAS#, CAS#, WE#)
CIN2
6.25
pF
Input Capacitance (CKE0)
CIN3
6.25
pF
Input Capacitance (CK0,CK0#)
CIN4
5.5
pF
Input Capacitance (CS0#)
CIN5
6.25
pF
Input Capacitance (DQM0-DQM8)
CIN6
13.0
pF
Input Capacitance (BA0-BA1)
CIN7
6.25
pF
Data input/output capacitance (DQ0-DQ63)(DQS)
COUT
13.0
pF
Data input/output capacitance (CB0-CB7)
COUT
13.0
pF
DC CHARACTERISTICS
0°C TA 70°C, VCC = 2.5V ± 0.2V
CAPACITANCE
TA = 25°C, f = 1MHz, VCC = 2.5V ± 0.2V
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