DS1557 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1557 Datasheet PDF : 19 Pages
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DS1557
READ CYCLE, AC CHARACTERISTICS
(0°C to 70°C; VCC = 5.0V ±10%)
70 ns access 100 ns access
PARAMETER
SYMBOL MIN MAX MIN MAX UNITS NOTES
Read Cycle Time
tRC
70
100
ns
Address Access Time
tAA
70
100
ns
CE to DQ Low-Z
tCEL
5
5
ns
CE Access Time
tCEA
70
100
ns
CE Data Off time
tCEZ
25
35
ns
OE to DQ Low-Z
tOEL
5
5
ns
OE Access Time
tOEA
35
55
ns
OE Data Off Time
tOEZ
25
35
ns
Output Hold from Address
tOH
5
5
ns
READ CYCLE, AC CHARACTERISTICS
(0°C to 70°C; VCC = 3.3V ±10%)
120 ns access 150 ns access
PARAMETER
SYMBOL MIN MAX MIN MAX UNITS NOTES
Read Cycle Time
tRC
120
150
ns
Address Access Time
tAA
120
150
ns
CE to DQ Low-Z
tCEL
5
5
ns
CE Access Time
tCEA
120
150
ns
CE Data Off time
tCEZ
40
50
ns
OE to DQ Low-Z
tOEL
5
5
ns
OE Access Time
tOEA
100
130
ns
OE Data Off Time
tOEZ
35
35
ns
Output Hold from Address
tOH
5
5
ns
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