參數(shù)資料
型號： IC42S32202L-8TIG
英文描述： 512K x 32 Bit x 4 Banks (64-MBIT) SDRAM
中文描述： 為512k × 32位× 4個銀行（64兆位）內(nèi)存
文件頁數(shù)： 18/62頁
文件大?。?/td> 774K
代理商： IC42S32202L-8TIG
IC42S3220
2/
L
18
Integrated Circuit Solution Inc.
DR0
42
-0C 0
8
/
1
7/2004
Test Mode field (A8~A7)
These two bits are used to enter the test mode and must be programmed to “00”in normal operation.
This bit is used to select the burst write length.
A9
Write Burst Length
0
Burst
1
Single Bit
Write Burst Length (A9)
8
No-Operation command
(RAS#=”H”,CAS#=”H”,WE#=”H”)
The No-Operation command is used to perform a NOP to the SDRAM which is selected (CS#
is Low).This prevents unwanted commands from being registered during idle or wait states.
Burst Stop command
(RAS#=”H”,CAS#=”H”,WE#=”L”)
The Burst Stop command is used to terminate either fixed-length or full-page bursts.This
command is only effective in a read/write burst without the auto precharge function.The terminated
read burst ends after a delay equal to the CAS#latency (refer to the following figure).The
termination of a write burst is shown in the following figure.
9
Termination of a Burst Read Operation (Burst Length
> 4
,CAS#Latency =2,3)
Termination of a Burst Write Operation (Burst Length =X)
CLK
COMMAND
T0
T 1
T2
T3
T4
T5
T6
T7
T
8
READ A
NOP
NOP
NOP
NOP
NOP
NOP
NOP
CAS# latency=2
tCK2,DQ’s
DOUT A0
DOUT A1
DOUT A2
DOUT A
3
DOUT A0
DOUT A1
DOUT A2
DOUT A
3
CAS# latency=3
tCK3,DQ’s
The Burst ends after a delay equal to the CAS# latency.
Burst Stop
CLK
COMMAN D
T0
T 1
T2
T3
T4
T5
T6
T7
T
8
NOP
WRITE A
NOP
NOP
NOP
NOP
NOP
NOP
Burst Stop
CAS# latency=2,3
DQ’s
DIN A0
DIN A1
DIN A2
don’t care
Input Data for the Write is masked.
A8
0
0
1
A7
0
1
X
Test Mode
normal mode
Vendor Use Only
Vendor Use Only
相關(guān)PDF資料
PDF描述
IC42S32202-6B 512K x 32 Bit x 4 Banks (64-MBIT) SDRAM
IC42S32202-6BI 512K x 32 Bit x 4 Banks (64-MBIT) SDRAM
IC42S32202-6T 512K x 32 Bit x 4 Banks (64-MBIT) SDRAM
IC42S32202-6TI 512K x 32 Bit x 4 Banks (64-MBIT) SDRAM
IC42S32400-7TIG 1M x 32 Bit x 4 Banks (128-MBIT) SDRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IC42S32400 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:1M x 32 Bit x 4 Banks (128-MBIT) SDRAM
IC42S32400-6B 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:1M x 32 Bit x 4 Banks (128-MBIT) SDRAM
IC42S32400-6BG 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:1M x 32 Bit x 4 Banks (128-MBIT) SDRAM
IC42S32400-6BI 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:1M x 32 Bit x 4 Banks (128-MBIT) SDRAM
IC42S32400-6BIG 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:1M x 32 Bit x 4 Banks (128-MBIT) SDRAM
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