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DS1743 Datasheet(PDF) 9 Page - Maxim Integrated Products

Part # DS1743
Description  Y2K-Compliant, Nonvolatile Timekeeping
PDF  16 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1743 Datasheet(HTML) 9 Page - Maxim Integrated Products

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DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
9 of 16
DC ELECTRICAL CHARACTERISTICS (3.3V)
(VCC = 3.3V ±10%, TA = Over the Operating Range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Active Supply Current
ICC
10
30
mA
2, 3
TTL Standby Current (
CE = V
IH)
ICC1
0.7
2
mA
2, 3
CMOS Standby Current
(
CE
≥ V
CC - 0.2V;
CE2 = GND + 0.2V)
ICC2
0.7
2
mA
2, 3
Input Leakage Current
(Any Input)
IIL
-1
+1
μA
Output Leakage Current
(Any Output)
IOL
-1
+1
μA
Output Logic 1 Voltage
(IOUT = -1.0mA)
VOH
2.4
1
Output Logic 0 Voltage
(IOUT =2.1mA)
VOL1
0.4
1
Write-Protection Voltage
VPF
2.75
2.97
V
1
Battery Switchover Voltage
VSO
VBAT
or
VPF
V
1, 4
AC CHARACTERISTICS—READ CYCLE (5V)
(VCC = 5.0V ±10%, TA = Over the Operating Range
.)
ACCESS
70ns
85ns
100ns
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
NOTES
Read Cycle Time
tRC
70
85
100
ns
Address Access Time
tAA
70
85
100
ns
CE to CE2 to DQ Low-Z
tCEL
5
5
5
ns
5
CE Access Time
tCEA
70
85
100
ns
5
CE2 Access Time
tCE2A
80
95
105
ns
5
CE and CE2 Data-Off
Time
tCEZ
25
30
35
ns
OE to DQ Low-Z
tOEL
5
5
5
ns
OE Access Time
tOEA
35
45
55
ns
OE Data-Off Time
tOEZ
25
30
35
ns
Output Hold from
Address
tOH
5
5
5
ns



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