DS1746WP-120IND(2010) 查看數據表（PDF） - Maxim Integrated
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DS1746WP-120IND Datasheet PDF : 16 Pages
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DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
DC ELECTRICAL CHARACTERISTICS
(VCC = 3.3V 10%, TA = Over the Operating Range.)
PARAMETER
SYMBOL MIN
Active Supply Current
Icc
TTL Standby Current
( CE = VIH)
Icc1
CMOS Standby Current
( CE VCC-0.2V)
Icc2
Input Leakage Current (any input)
IIL
-1
Output Leakage Current
(any output)
IOL
-1
Output Logic 1 Voltage
(IOUT = -1.0 mA)
VOH
2.4
TYP
MAX
30
UNITS NOTES
mA 2, 3, 10
2
mA
2, 3
2
mA
2, 3
+1
A
+1
A
1
Output Logic 0 Voltage
(IOUT = +2.1 mA)
VOL
0.4
1
Write Protection Voltage
Battery Switchover Voltage
VPF
2.80
2.97
V
1
VBAT
VSO
or
VPF
V
1, 4
AC CHARACTERISTICS—READ CYCLE (5V)
(VCC = 5.0V 10%, TA = Over the Operating Range.)
PARAMETER
SYMBOL MIN
Read Cycle Time
tRC
70
Address Access Time
tAA
CE to DQ Low-Z
tCEL
5
CE Access Time
tCEA
CE Data Off Time
OE to DQ Low-Z
OE Access Time
OE Data Off Time
tCEZ
tOEL
5
tOEA
tOEZ
Output Hold from Address
tOH
5
TYP
MAX
70
70
25
35
25
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
9 of 16
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