參數(shù)資料
型號: IS42G32256-10PQ
廠商: INTEGRATED SILICON SOLUTION INC
元件分類: DRAM
英文描述: 256K x 32 x 2 (16-Mbit) SYNCHRONOUS GRAPHICS RAM
中文描述: 512K X 32 SYNCHRONOUS GRAPHICS RAM, 7 ns, PQFP100
封裝: 14 X 20 MM , PLASTIC, QFP-100
文件頁數(shù): 50/52頁
文件大?。?/td> 456K
代理商: IS42G32256-10PQ
IS42G32256
50
Integrated Silicon Solution, Inc.
ADVANCE INFORMATION
SR037-0C
09/10/98
ISSI
Figure 35. Self Refresh Entry and Exit Cycle
Notes:
TO ENTER SELF REFRESH MODE
1.
CS
,
RAS
, and
CAS
with CKE should be low at the same clock cycle.
2. After one clock cycle, all the inputs including the system clock can be “Don’t Care” except for CKE.
3. The device remains in the self refresh mode as long as CKE stays “Low”. Once the device enters self refresh mode
minimum t
RAS
is required before exit from self refresh.
TO EXIT SELF REFRESH MODE
4. System clock restart and be stable before returning CKE high.
5.
CS
starts from high.
6. Minimum t
RC
is required after CKE going high to complete self refresh exit.
7. 2K cycle of burst auto refresh is required before self refresh entry and after self refresh exit if system uses burst
refresh.
CLK
CKE
CS
RAS
CAS
A0-A8
WE
DSF
DQM
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
A10
A9
SELF
REFRESH
ENTRY
SELF
REFRESH
EXIT
AUTO
REFRESH
: DON’T CARE
DQ
HI-Z
HI-Z
NOTE 3
NOTE 2
NOTE 6
NOTE 5
NOTE 7
NOTE 7
NOTE 4
NOTE 1
t
RCmin
t
SS
t
SS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IS42G32256-7PQ 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:256K x 32 x 2 (16-Mbit) SYNCHRONOUS GRAPHICS RAM
IS42G32256-8PQ 制造商:Integrated Silicon Solution Inc 功能描述:
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IS42KS 制造商:IDEC Corporation 功能描述:SENS.IND. 10-30VDC NPN NC
IS42L 制造商:IDEC Corporation 功能描述:SENS.IND. 10-30VDC NPN NC