DS1742 Maxim, DS1742 Datasheet - Page 8

• Manufacturer Part Number: DS1742
• Description: The DS1742 is a full-function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) and 2k x 8 nonvolatile static RAM
• Manufacturer: Maxim

DC ELECTRICAL CHARACTERISTICS
(V
AC CHARACTERISTICS—READ CYCLE (5V)
(V
Active Supply Current
TTL Standby Current (
V
CMOS Standby Current
(
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
Output Hold from
Address
CE
CE
CE
OE
OE
OE
CC
CC
CE
OUT
OUT
IH
)
= 3.3V 10%, Over the operating range.)
= 5.0V 10%, Over the operating range.)
to DQ Low-Z
Access Time
Data Off time
to DQ Low-Z
Access Time
Data Off Time
 V
= -1.0mA)
=2.1mA)
PARAMETER
CC
PARAMETER
- 0.2V)
CE
=
SYMBOL
t
t
t
t
t
t
t
t
t
OEA
CEL
CEA
CEZ
OEL
OEZ
RC
OH
AA
SYMBOL
V
I
I
V
V
V
I
I
CC1
CC2
I
CC
OL
OH
IL
OL
SO
PF
MIN
85
5
5
5
ACCESS
85ns
8 of 16
2.80
MIN
2.4
-1
-1
MAX
85
85
30
45
30
V
100ns ACCESS
TYP
BAT
V
0.7
0.7
10
MIN
100
PF
5
5
5
or
MAX
2.97
MAX
0.4
100
100
30
+1
+1
35
55
35
2
2
UNITS
UNITS
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
A
A
NOTES
2, 3
2, 3
2, 3
1, 4
DS1742
1
1
1