參數(shù)資料
型號(hào): KM44S16020B
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 8M x 4Bit x 2 Banks Synchronous DRAM(8M x 4位 x 2組同步動(dòng)態(tài)RAM)
中文描述: 8米× 4位× 2銀行同步DRAM(8米× 4位× 2組同步動(dòng)態(tài)RAM)的
文件頁數(shù): 42/43頁
文件大?。?/td> 597K
代理商: KM44S16020B
ELECTRONICS
REV. 2 Mar. '98
TIMING DIAGRAM - II
CMOS SDRAM
0
1
2
3
4
5
6
ó
7
8
9
10
11
12
13
14
15
16
17
18
19
Self Refresh Entry & Exit Cycle
Self Refresh Entry
: Don't care
*Note 1
*Note 7
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
Hi-Z
ó
ó
ó
ó
ó
ó
Hi-Z
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
ó
Self Refresh Exit
Auto Refresh
tSS
*Note 2
*Note 3
*Note 4
tRFCmin
*Note 6
*Note 5
BA
DQ
ADDR
CAS
RAS
CS
CKE
CLOCK
WE
DQM
A
10
/AP
*Note :
TO ENTER SELF REFRESH MODE
1. CS, RAS & CAS with CKE should be low at the same clcok cycle.
2. After 1 clock cycle, all the inputs including the system clock can be don't care except for CKE.
3. The device remains in self refresh mode as long as CKE stays
cf.) Once the device enters self refresh mode, minimum t
"Low".
RAS
is required before exit from self refresh.
TO EXIT SELF REFRESH MODE
4. System colck restart and be stable before returning CKE high.
5. CS starts from high.
6. Minimum t
RFC
is required after CKE going high to complete self refresh exit.
7. 4K cycle of burst auto refresh is required before self refresh entry and after self refresh exit if the system uses burst ref
resh.
相關(guān)PDF資料
PDF描述
KM44S4020CT 2M x 4Bit x 2 Banks Synchronous DRAM(2M x 4位 x 2組同步動(dòng)態(tài)RAM)
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KM44V16000B 16M x 4Bit CMOS Dynamic RAM with Fast Page Mode(16M x 4位CMOS 動(dòng)態(tài)RAM(帶快速頁模式))
KM44V16100B 16M x 4Bit CMOS Dynamic RAM with Fast Page Mode(16M x 4位CMOS 動(dòng)態(tài)RAM(帶快速頁模式))
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