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參數(shù)資料
| 型號(hào)： | IS43R16160A-6T |
| 廠商： | INTEGRATED SILICON SOLUTION INC |
| 元件分類： | DRAM |
| 英文描述： | 16Meg x 16 256-MBIT DDR SDRAM |
| 中文描述： | 16M X 16 DDR DRAM, 0.7 ns, PDSO66 |
| 封裝： | PLASTIC, TSOP2-66 |
| 文件頁數(shù)： | 5/56頁 |
| 文件大?。?/td> | 792K |
| 代理商： | IS43R16160A-6T |
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Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00B
11/28/05
5
ISSI
IS43R16160A
Functional Description
■
Power-Up Sequence
The following sequence is required for POWER UP.
1. Apply power and attempt to maintain CKE at a low state (all other inputs may be undefined.)
- Apply VDD before or at the same time as VDDQ.
- Apply VDDQ before or at the same time as VTT & Vref.
2. Start clock and maintain stable condition for a minimum of 200us.
3. The minimum of 200us after stable power and clock (CLK, CLK), apply NOP & take CKE high.
4. Precharge all banks.
5. Issue EMRS to enable DLL.(To issue “DLL Enable” command, provide “Low” to A0, “High” to BA0
and “Low” to all of the rest address pins, A1~A11 and BA1)
6. Issue a mode register set command for “DLL reset”. The additional 200 cycles of clock input is
required to lock the DLL. (To issue DLL reset command, provide “High” to A8 and “Low” to BA0)
7. Issue precharge commands for all banks of the device.
8. Issue 2 or more auto-refresh commands.
9. Issue a mode register set command to initialize device operation.
Note1 Every “DLL enable” command resets DLL. Therefore sequence 6 can be skipped during power up. Instead of it,
the additional 200 cycles of clock input is required to lock the DLL after enabling DLL.
Extended Mode Register Set (EMRS)
The extended mode register stores the data for enabling or disabling DLL. The default value of the extend-
ed mode register is not defined, therefore the extended mode register must be written after power up for en-
abling or disabling DLL. The extended mode register is written by asserting low on CS, RAS, CAS, WE and
high on BA
0
(The DDR SDRAM should be in all bank precharge with CKE already high prior to writing into
the extended mode register). The state of address pins A
0
~ A
12
and BA
1
in the same cycle as CS, RAS,
CAS and WE low is written in the extended mode register. Two clock cycles are required to complete the
write operation in the extended mode register. The mode register contents can be changed using the same
command and clock cycle requirements during operation as long as all banks are in the idle state. A
0
is used
for DLL enable or disable. “High” on BA
0
is used for EMRS. All the other address pins except A
0
and BA
0
must be set to low for proper EMRS operation. A
1
is used at EMRS to indicate I/O strength A
1
= 0 full strength,
A
1
= 1 half strength. Refer to the table for specific codes.
Power up Sequence & Auto Refresh(CBR)
Command
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
t
RP
2 Clock min.
precharge
ALL Banks
2nd Auto
Refresh
Mode
Register Set
CoAny
t
RFC
1st Auto
Refresh
t
RFC
min. 200 Cycle
CK, CK
EMRS
MRS
DLL Reset
2 Clock min.
200
μ
S Power up
to 1st command
2 Clock min.
6
5
4
7
8
8
precharge
ALL Banks
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IS43R16160A | 16Meg x 16 256-MBIT DDR SDRAM |
| IS43R16320A | 32Meg x 16 512-MBIT DDR SDRAM |
| IS43R16320A-6TL | 32Meg x 16 512-MBIT DDR SDRAM |
| IS43R16800A-6 | 8Meg x 16 128-MBIT DDR SDRAM |
| IS43R16800A-6T | 8Meg x 16 128-MBIT DDR SDRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS43R16160B | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:32Mx8, 16Mx16 256Mb DDR Synchronous DRAM |
| IS43R16160B-5BI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:32Mx8, 16Mx16 256Mb DDR Synchronous DRAM |
| IS43R16160B-5BL | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M (16Mx16) 400MHz DDR 2.5v 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(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)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 |
| IS43R16160B-5BLI | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M (16Mx16) 400MHz DDR 2.5v 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(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)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 |
| IS43R16160B-5BLI-TR | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M (16Mx16) 400MHz DDR 2.5v 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(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)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 |
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