DS1742W-150 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1742W-150 Datasheet PDF : 12 Pages
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DS1742
DC ELECTRICAL CHARACTERISTICS
PARAMETER
(Over the Operating Range; VCC = 3.3V ± 10%)
SYMBOL MIN TYP MAX UNITS NOTES
Active Supply Current
ICC
TTL Standby Current ( CE = VIH )
ICC1
CMOS Standby Current
ICC2
( CE ≥=VCC - 0.2V)
Input Leakage Current (any input)
IIL
Output Leakage Current
IOL
(any output)
Output Logic 1 Voltage
VOH
(IOUT = -1.0 mA)
Output Logic 0 Voltage
(IOUT =2.1 mA)
VOL
Write Protection Voltage
VPF
Battery Switch-over Voltage
VSO
10
30
0.7
2
0.7
2
-1
+1
-1
+1
2.4
0.4
2.80
2.97
VBAT
or VPF
mA
2, 3
mA
2, 3
mA
2, 3
µA
µA
1
1
V
1
V
1, 4
READ CYCLE, AC CHARACTERISTICS
(Over the Operating Range; 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
6 of 12
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