DS1646 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1646 Datasheet PDF : 12 Pages
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DS1646/DS1646P
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Read Cycle Time
Address Access Time
CE Access Time
CE Data Off Time
Output Enable Access Time
Output Enable Data Off Time
Output Enable to DQ Low–Z
CE to DQ Low–Z
Output Hold from Address
Write Cycle Time
Address Setup Time
CE Pulse Width
Address Hold from End of Write
Write Pulse Width
WE Data Off Time
WE or CE Inactive Time
Data Setup Time
Data Hold Time High
tRC
tAA
tCEA
tCEZ
tOEA
tOEZ
tOEL
tCEL
tOH
tWC
tAS
tCEW
tAH1
tAH2
tWEW
tWEZ
tWR
tDS
tDH1
tDH2
DS1646–120
MIN
MAX
120
120
120
40
100
40
5
5
5
120
0
100
5
30
75
40
10
85
0
25
(0°C to 70°C; VCC = 5.0V + 10%)
DS1646–150
MIN
MAX
UNITS NOTES
150
ns
150
ns
150
ns
50
ns
120
ns
50
ns
5
ns
5
ns
5
ns
150
ns
0
ns
120
ns
5
ns
5
30
ns
6
90
ns
50
ns
10
ns
110
ns
0
ns
5
25
ns
6
AC TEST CONDITIONS
Input Levels:
0V to 3V
Transition Times: 5 ns
CAPACITANCE
PARAMETER
Capacitance on all pins
(except DQ)
Capacitance on DQ pins
(tA = 25°C)
SYMBOL MIN
TYP
MAX
UNITS NOTES
CI
7
pF
CDQ
10
pF
031698 6/12
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