參數(shù)資料
型號: CYM1831V33
廠商: Cypress Semiconductor Corp.
英文描述: 64K x 32 3.3V Static RAM Module(64K x 32 3.3V 靜態(tài)RAM模塊)
中文描述: 64K的× 32 3.3靜態(tài)存儲器模塊(64K的× 32 3.3靜態(tài)內(nèi)存模塊)
文件頁數(shù): 4/7頁
文件大?。?/td> 120K
代理商: CYM1831V33
CYM1831V33
4
Switching Characteristics
Over the Operating Range
[3]
(continued)
1831V33-20
1831V33-25
1831V33-35
Parameter
READ CYCLE
Description
Min.
Max.
Min.
Max.
Min.
Max.
Unit
t
RC
t
AA
t
OHA
t
ACS
t
DOE
t
LZOE
t
HZOE
t
LZCS
t
HZCS
t
PD
WRITE CYCLE
[6]
Read Cycle Time
20
25
35
ns
Address to Data Valid
20
25
35
ns
Data Hold from Address Change
3
3
3
ns
CS LOW to Data Valid
20
25
35
ns
OE LOW to Data Valid
12
15
18
ns
OE LOW to Low Z
0
0
0
ns
OE HIGH to High Z
CS LOW to Low Z
[4]
CS HIGH to High Z
[4, 5]
10
12
15
ns
3
3
3
ns
10
12
15
ns
CS HIGH to Power-Down
20
25
35
ns
t
WC
t
SCS
t
AW
t
HA
t
SA
t
PWE
t
SD
t
HD
t
LZWE
t
HZWE
Write Cycle Time
20
25
35
ns
CS LOW to Write End
17
20
30
ns
Address Set-Up to Write End
17
20
30
ns
Address Hold from Write End
3
3
3
ns
Address Set-Up to Write Start
2
2
2
ns
WE Pulse Width
15
20
30
ns
Data Set-Up to Write End
12
15
20
ns
Data Hold from Write End
2
2
2
ns
WE HIGH to Low Z
WE LOW to High Z
[5]
3
3
3
ns
0
12
0
12
0
15
ns
Switching Waveforms
Notes:
7.
8.
WE is HIGH for read cycle.
Device is continuously selected, CS = V
IL
, and OE= V
IL
.
Read Cycle No. 1
PREVIOUS DATA VALID
DATA VALID
t
RC
t
AA
t
OHA
1831V33–5
ADDRESS
DATA OUT
[7, 8]
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