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參數(shù)資料
| 型號： | IS43R32400A-5B |
| 廠商： | INTEGRATED SILICON SOLUTION INC |
| 元件分類： | DRAM |
| 英文描述： | 4Meg x 32 128-MBIT DDR SDRAM |
| 中文描述： | 4M X 32 DDR DRAM, 0.7 ns, PBGA144 |
| 封裝： | 12 X 12 MM, 0.80 MM PITCH, MINI, FBGA-144 |
| 文件頁數(shù)： | 16/25頁 |
| 文件大小： | 1295K |
| 代理商： | IS43R32400A-5B |
16
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00D
02/15/06
ISSI
IS43R32400A
EXTENDED MODE REGISTER DEFINITION
Drive Strength
E6
0
0
1
—
E5
0
0
0
—
E4
0
0
0
—
E3
0
0
0
—
E2
0
0
0
—
E1
0
1
1
—
Type
Full Strength
Weak-60%
Matched Impedence
All Other States Reserved
Operating Mode
E13
0
—
E12
1
—
E11
0
—
E10
0
—
E9
0
—
E8
0
—
E7
0
—
Mode
Standard Operation
All Other States Reserved
DLL
E0
0
1
Status
Enable
Disable
BA1 BA0 A11 A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
Address Bus (Ax)
Mode Register (Ex)
EXTENDED MODE REGISTER DEFINITION
The Extended Mode Register is a second register to
enable additional functions of the DDR SDRAM. This
register is loaded as a step in the normal initialization
of the device. The Load Extended Mode Register
command samples the values on inputs A0-A11, BA0
(High) and BA1 (Low) and stores them as register
values E0-E13. The additional functions are DLL
enable/disable and output drive strength. Similarly to
the Load Mode Register, the Load Extended Mode
Register has reserved bit values, a bank idle pre-
requisite, and a tMRD time requirement. The data in
the mode register is retained until it is reloaded or the
device loses its power.
DLL Enable/Disable
When the Load Extended Mode Register command is
issued, DLL should be enabled (E0 = 0). Normal
operation of the device requires this, but DLL can be
disabled for debugging or evaluation, if necessary.
Output Drive Strength
Normal drive strength for the outputs is specified as
SSTL 2. However, there are options for reduced drive
strength included.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IS43R32400A-5BL | 4Meg x 32 128-MBIT DDR SDRAM |
| IS43R32400A-6B | 4Meg x 32 128-MBIT DDR SDRAM |
| IS43R32400A-6BI | 4Meg x 32 128-MBIT DDR SDRAM |
| IS43R32400A-6BL | 4Meg x 32 128-MBIT DDR SDRAM |
| IS43R32400A-6BLI | 4Meg x 32 128-MBIT DDR SDRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS43R32400A-5BL | 功能描述:動態(tài)隨機(jī)存取存儲器 128M 2.5v 4Mx32 400MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲容量:16 MB 最大時鐘頻率: 訪問時間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS43R32400A-5BL-TR | 功能描述:動態(tài)隨機(jī)存取存儲器 128M 2.5v 4Mx32 400MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲容量:16 MB 最大時鐘頻率: 訪問時間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS43R32400A-5B-TR | 功能描述:動態(tài)隨機(jī)存取存儲器 128M 2.5v 4Mx32 400MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲容量:16 MB 最大時鐘頻率: 訪問時間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS43R32400A-6B | 功能描述:動態(tài)隨機(jī)存取存儲器 128M 2.5v 4Mx32 333MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲容量:16 MB 最大時鐘頻率: 訪問時間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS43R32400A-6BI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:4Meg x 32 128-MBIT DDR SDRAM |
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