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參數(shù)資料
| 型號： | W3H128M72E-667SBM |
| 廠商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分類： | DRAM |
| 英文描述： | 128M X 72 DDR DRAM, 1.25 ns, PBGA208 |
| 封裝： | 16 X 22 MM, 1 MM PITCH, PLASTIC, BGA-208 |
| 文件頁數(shù)： | 15/32頁 |
| 文件大小： | 988K |
| 代理商： | W3H128M72E-667SBM |
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W3H128M72E-XSBX
22
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
September 2009
Rev. 6
White Electronic Designs Corp. reserves the right to change products or specications without notice.
DC OPERATING CONDITIONS
All voltages referenced to VSS
Parameter
Symbol
Min
Typical
Max
Unit
Notes
Supply voltage
VCC
1 .7
1 .8
1 .9
V
1, 5
VCCL Supply voltage
VCCL
1.7
1.8
1.9
V
4, 5
I/O Supply voltage
VCCQ
1 .7
1 .8
1 .9
V
4, 5
I/O Reference voltage
VREF
0.49 x VCCQ
0.50 x VCCQ
0.51 x VCCQ
V2
I/O Termination voltage
VTT
VREF-0.04
VREF
VREF + 0.04
V
3
Notes:
1.
VCC and VCCQ must track each other. VCCQ must be less than or equal to VCC.
2.
VREF is expected to equal VCCQ/2 of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise on VREF may not exceed ±1 percent of the DC
value. Peak-to-peak AC noise on VREF may not exceed ±2 percent of VREF. This measurement is to be taken at the nearest VREF bypass capacitor.
3.
VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF and must track variations in the DC level of VREF.
4.
VCCQ tracks with VCC, VCCL tracks with VCC.
5.
VSSQ = VSSL = VSS
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
MIN
MAX
U nit
VCC
Voltage on VCC pin relative to VSS
-1.0
2.3
V
VCCQ
Voltage on VCCQ pin relative to VSS
-0.5
2.3
V
VIN, VOUT
Voltage on any pin relative to VSS
-0.5
2.3
V
TSTG
Storage temperature
-55
125
°C
IL
Input leakage current; Any input 0V<VIN<VCC; VREF input
0V<VIN<0.95V; Other pins not under test = 0V
-25
25
μA
IOZ
Output leakage current;
0V<VOUT<VCCQ; DQs and ODT are disable
-25
25
μA
IVREF
VREF leakage current; VREF = Valid VREF level
-10
10
μA
INPUT/OUTPUT CAPACITANCE
TA = 25°C, f = 1MHz, VCC = VCCQ = 1.8V
Parameter
Symbol
Max
Unit
Input capacitance (A0 - A12, BA0 - BA2 ,CS#, RAS#, CAS#, WE#, CKE, ODT)
CIN1
24
pF
Input capacitance CK, CK#
CIN2
9.5
pF
Input capacitance DM, DQS, DQS#
CIN3
10.5
pF
Input capacitance DQ0 - 71
COUT
10.5
pF
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