DS1743 Maxim, DS1743 Datasheet - Page 9

• Manufacturer Part Number: DS1743
• Description: The DS1743 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 8k x 8 nonvolatile static RAM
• Manufacturer: Maxim

DC ELECTRICAL CHARACTERISTICS (3.3V)
(V
AC CHARACTERISTICS—READ CYCLE (5V)
(V
Active Supply Current
TTL Standby Current (CE = V
CMOS Standby Current
(CE V
CE2 = GND + 0.2V)
Input Leakage Current
(Any Input)
Output Leakage Current
(Any Output)
Output Logic 1 Voltage
(I
Output Logic 0 Voltage
(I
Write-Protection Voltage
Battery Switchover Voltage
Read Cycle Time
Address Access Time
CE to CE2 to DQ Low-Z
CE Access Time
CE2 Access Time
CE and CE2 Data-Off
Time
OE to DQ Low-Z
OE Access Time
OE Data-Off Time
Output Hold from
Address
CC
CC
OUT
OUT
= 3.3V 10%, T
= 5.0V 10%, T
= -1.0mA)
=2.1mA)
PARAMETER
CC
PARAMETER
- 0.2V;
A
A
= Over the Operating Range.)
= Over the Operating Range.)
SYMBOL
IH
)
t
t
t
t
t
t
t
CE2A
t
t
t
CEL
CEA
CEZ
OEL
OEA
OEZ
AA
OH
RC
SYMBOL
MIN
V
V
V
I
I
V
I
I
70
I
CC1
CC2
5
5
5
CC
OL
OL1
IL
OH
SO
PF
DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
70ns
MAX
9 of 16
70
70
80
25
35
25
MIN
2.75
2.4
-1
-1
MIN
85
5
5
5
ACCESS
85ns
TYP
V
MAX
V
0.7
0.7
10
or
BAT
85
85
95
30
45
30
PF
MIN
100
MAX
5
5
5
2.97
0.4
30
+1
+1
2
2
100ns
MAX
100
100
105
35
55
35
UNITS
mA
mA
mA
A
A
V
V
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
NOTES
2, 3
2, 3
2, 3
1, 4
1
1
1
5
5
5