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參數(shù)資料
| 型號： | IS42S16400B1 |
| 廠商： | Integrated Silicon Solution, Inc. |
| 英文描述： | 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM |
| 中文描述： | 1梅格位× 16位× 4銀行（64兆位）同步動(dòng)態(tài)RAM |
| 文件頁數(shù)： | 6/55頁 |
| 文件大?。?/td> | 468K |
| 代理商： | IS42S16400B1 |
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IS42S16400B1
ISSI
6
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. A
12/09/03
TRUTH TABLE – COMMANDS AND DQM OPERATION
(1)
FUNCTION
CS
RAS
CAS
WE
DQM
ADDR
DQs
COMMAND INHIBIT (NOP)
H
X
X
X
X
X
X
NO OPERATION (NOP)
L
H
H
H
X
X
X
ACTIVE (Select bank and activate row)
(3)
L
L
H
H
X
Bank/Row
X
READ (Select bank/column, start READ burst)
(4)
L
H
L
H
L/H
(8)
Bank/Col
X
WRITE (Select bank/column, start WRITE burst)
(4)
L
H
L
L
L/H
(8)
Bank/Col
Valid
BURST TERMINATE
L
H
H
L
X
X
Active
PRECHARGE (Deactivate row in bank or banks)
(5)
L
L
H
L
X
Code
X
AUTO REFRESH or SELF REFRESH
(Enter self refresh mode)
(6,7)
L
L
L
H
X
X
X
LOAD MODE REGISTER
(2)
L
L
L
L
X
Op-Code
X
Write Enable/Output Enable
(8)
—
—
—
—
L
—
Active
Write Inhibit/Output High-Z
(8)
—
—
—
—
H
—
High-Z
NOTES:
1. CKE is HIGH for all commands except SELF REFRESH.
2. A0-A11 define the op-code written to the mode register.
3. A0-A11 provide row address, and BA0, BA1 determine which bank is made active.
4. A0-A7 (x16) provide column address; A10 HIGH enables the auto precharge feature (nonpersistent), while A10 LOW disables
auto precharge; BA0, BA1 determine which bank is being read from or written to.
5. A10 LOW: BA0, BA1 determine the bank being precharged. A10 HIGH: All banks precharged and BA0, BA1 are “Don’t Care.”
6. AUTO REFRESH if CKE is HIGH, SELF REFRESH if CKE is LOW.
7. Internal refresh counter controls row addressing; all inputs and I/Os are “Don’t Care” except for CKE.
8. Activates or deactivates the DQs during WRITEs (zero-clock delay) and READs (two-clock delay).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS42S16400B1-7T | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM |
| IS42S16400B-6T | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM |
| IS42S16400B-6TL | 制造商:Integrated Silicon Solution Inc 功能描述: |
| IS42S16400B-6TLI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM |
| IS42S16400B-6TL-TR | 制造商:Integrated Silicon Solution Inc 功能描述: |
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