DS1642
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
–0.3V to +7.0V
0° to 70°
C
C
–20° to +70°
C
C
260° for 10 seconds (See Note 6)
C
* This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
Logic 1 Voltage All Inputs
Logic 0 Voltage All Inputs
SYMBOL
V
IH
V
IL
MIN
2.2
-0.3
TYP
MAX
V
CC
+0.3
0.8
(0°C to 70°C)
UNITS
V
V
NOTES
1
1
DC ELECTRICAL CHARACTERISTICS
(0°C < t
A
< 70°C; V
CC
(MAX) < V
CC
< V
CC
(MIN)
PARAMETER
Active Supply Current
TTL Standby Current
(
CE
= V
IH
)
CMOS Standby Current
(
CE
< V
CC
-0.2V)
Input Leakage Current
(any input)
I/O Leakage Current
(any output)
Output Logic 1 Voltage
(I
OUT
= -1.0 mA)
Output Logic 0 Voltage
(I
OUT
= +2.1 mA)
Write Protection Voltage
SYMBOL
I
CC
I
CC1
I
CC2
I
IL
I
OL
V
OH
V
OL
V
PF
4.25
4.37
-1
-1
2.4
0.4
4.50
V
MIN
TYP
15
1
1
MAX
50
3
3
+1
+1
UNITS
mA
mA
mA
µA
µA
1
1
1
NOTES
2, 3
2, 3
2, 3
5 of 11
DALLAS [ DALLAS SEMICONDUCTOR ]
