參數(shù)資料
型號(hào): CYM1841V33
廠商: Cypress Semiconductor Corp.
英文描述: 256K x 32 3.3V Static RAM Module(256K x 32 位3.3V 靜態(tài)RAM模塊)
中文描述: 256K × 32 3.3靜態(tài)存儲(chǔ)器模塊(256K × 32位3.3V的靜態(tài)內(nèi)存模塊)
文件頁(yè)數(shù): 3/7頁(yè)
文件大?。?/td> 115K
代理商: CYM1841V33
CYM1841V33
3
AC Test Loads and Waveforms
1841V33–3
1841V33–4
90%
10%
3.0V
GND
90%
10%
ALL INPUT PULSES
3.3V
OUTPUT
30 pF
INCLUDING
JIG AND
SCOPE
3.3V
OUTPUT
5 pF
INCLUDING
JIG AND
SCOPE
(a)
(b)
< 5 ns
< 5 ns
OUTPUT
R317
R317
R2
351
R2
351
167
Equivalent to:
THé VENIN
EQUIVALENT
1.73V
Switching Characteristics
Over the Operating Range
[3]
1841V33-15
Parameter
READ CYCLE
Description
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]
t
WC
t
SCS
t
AW
t
HA
t
SA
t
PWE
t
SD
t
HD
t
LZWE
t
HZWE
Read Cycle Time
15
ns
Address to Data Valid
15
ns
Data Hold from Address Change
3
ns
CS LOW to Data Valid
15
ns
OE LOW to Data Valid
8
ns
OE LOW to Low Z
0
ns
OE HIGH to High Z
CS LOW to Low Z
[4]
CS HIGH to High Z
[4, 5]
8
ns
3
ns
8
ns
CS HIGH to Power-Down
15
ns
Write Cycle Time
15
ns
CS LOW to Write End
10
ns
Address Set-Up to Write End
10
ns
Address Hold from Write End
0
ns
Address Set-Up to Write Start
1
ns
WE Pulse Width
12
ns
Data Set-Up to Write End
8
ns
Data Hold from Write End
1
ns
WE HIGH to Low Z
WE LOW to High Z
[5]
3
ns
0
8
ns
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