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參數(shù)資料
| 型號(hào)： | IS42S16800A-10TI |
| 廠商： | INTEGRATED SILICON SOLUTION INC |
| 元件分類： | DRAM |
| 英文描述： | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| 中文描述： | 8M X 16 SYNCHRONOUS DRAM, 7 ns, PDSO54 |
| 封裝： | PLASTIC, TSOP2-54 |
| 文件頁(yè)數(shù)： | 53/66頁(yè) |
| 文件大小： | 556K |
| 代理商： | IS42S16800A-10TI |
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Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
ADVANCED INFORMATION
Rev. 00A
06/01/02
53
ISSI
IS42S81600A, IS42S16800A, IS42S32400A
IS42LS81600A, IS42LS16800A, IS42LS32400A
CLK
CKE
HIGH
ALL BANKS
BANK SELECT
BANK ADDRESS
CS
RAS
CAS
WE
A0-A9, A11
A10
BA0, BA1
DON'T CARE
CLK
CKE
COMMAND
NOP
NOP
ACTIVE
≥
t
CKS
t
CKS
All banks idle
Enter
power-down mode
Exit power-down mode
t
RCD
t
RAS
t
RC
Input buffers gated
off
less than 64ms
PRECHARGE Command
POWER-DOWN
POWER-DOWN
Power-down occurs if CKE is registered LOW coincident
with a NOP or COMMAND INHIBIT when no accesses are
in progress. If power-down occurs when all banks are idle,
this mode is referred to as precharge power-down; if power-
down occurs when there is a row active in either bank, this
mode is referred to as active power-down. Entering power-
down deactivates the input and output buffers, excluding
CKE, for maximum power savings while in standby. The
device may not remain in the power-down state longer than
the refresh period (64ms) since no refresh operations are
performed in this mode.
The power-down state is exited by registering a NOP or
COMMAND INHIBIT and CKE HIGH at the desired clock
edge (meeting t
CKS
). See figure below.
PRECHARGE
The PRECHARGE command (see figure) is used to deac-
tivate the open row in a particular bank or the open row in all
banks. The bank(s) will be available for a subsequent row
access some specified time (t
RP
) after the PRECHARGE
command is issued. Input A10 determines whether one or
all banks are to be precharged, and in the case where only
one bank is to be precharged, inputs BA0, BA1 select the
bank. When all banks are to be precharged, inputs BA0,
BA1 are treated as “Don’t Care.” Once a bank has been
precharged, it is in the idle state and must be activated prior
to any READ or WRITE commands being issued to that
bank.
相關(guān)PDF資料 |
PDF描述 |
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| IS42S16800A-10TL | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A-10TLI | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A-7TL | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A-7TLI | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S32400A | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS42S16800A-10TL | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A-10TLI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A1-7TL | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:8Meg x16 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A-6T | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| IS42S16800A-6TL | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
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