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AS4DDR264M64PBG1R-38/IT 参数 Datasheet PDF下载

AS4DDR264M64PBG1R-38/IT图片预览
型号: AS4DDR264M64PBG1R-38/IT
PDF下载: 下载PDF文件 查看货源
内容描述: 64Mx64 DDR2 SDRAM W /共享控制总线集成塑封微电路 [64Mx64 DDR2 SDRAM w/ SHARED CONTROL BUS iNTEGRATED Plastic Encapsulated Microcircuit]
分类和应用: 动态存储器双倍数据速率
文件页数/大小: 28 页 / 243 K
品牌: AUSTIN [ AUSTIN SEMICONDUCTOR ]
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iPEM  
4.2 Gb SDRAM-DDR2  
Austin Semiconductor, Inc.  
AS4DDR264M64PBG1  
DC OPERATING CONDITIONS  
All Voltages referenced to Vss  
Parameter  
Supply Voltage  
Symbol  
VCC  
MIN  
1.7  
TYP  
1.8  
MAX  
1.9  
Units  
Notes  
V
V
V
V
1
4
2
3
VCCQ  
VREF  
VTT  
I/O Supply Voltage  
1.7  
1.8  
1.9  
I/O Reference Voltage  
I/O Termination Voltage  
0.49 x VCCQ  
VREF - 0.04  
0.50 x VCCQ  
VREF  
0.51 x VCCQ  
VREF + 0.04  
1. VCCQ tracks VCC due to direct tie in package.  
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 track with VCC.  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
VCC  
Parameter  
Voltage on VCC pin relative to VSS  
Voltage on VCCQ pin relative to V  
Min  
-1.0  
Max  
2.3  
Unit  
V
VCCQ  
-0.5  
2.3  
V
SS  
VIN, VOUT  
TSTG  
Voltage on any pin relative to V  
-0.5  
2.3  
V
oC  
oC  
SS  
Storage Temperature  
-55.0  
-55.0  
125.0  
125.0  
TCASE  
Device Operating Temperature  
ADDR, BAx  
-8  
8
uA  
RAS\, CAS\, WE\, CS\,  
CKE, DM, DQS, DQS\,  
RDQS  
-5  
5
uA  
Input Leakage current; Any input 0V<V <VCC  
IN  
;
VREF =  
II  
.5XVCCQ; Other balls not under test = 0V  
CK, CK\  
DM  
-5  
-5  
5
5
uA  
uA  
OV ” VOUT ” VDDQ, DQ & ODT Disabled  
VREF Leakage Current  
IOZ  
-5  
5
uA  
uA  
IVREF  
-10  
10  
INPUT / OUTPUT CAPACITANCE  
TA = 25oC, f = 1 MHz, VCC = VCCQ = 1.8V  
Parameter  
Symbol  
Max  
Unit  
CADDR  
CIN2  
Input capacitance (A0-A12, BA0-BA2, CS\, RAS\, CAS\, WE\, CKE, ODT)  
Input capacitance CK, CK#  
20  
8
pF  
pF  
pF  
pF  
CIN3  
Input capacitance DM, DQS, DQS#  
10  
12  
COUT  
Input capacitance DQ0-71  
Austin Semiconductor, Inc.  
Austin, Texas  
512.339.1188  
www.austinsemiconductor.com  
AS4DDR264M64PBG1  
Rev. 0.5 06/08  
21  
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