
DS1021
6 of 9
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
Short Circuit Output Current
-1.0V to +7.0V
0
°
C to 70
°
C
-55
°
C to +125
°
C
260
°
C for 10 seconds
50 mA for 1 second
* 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.
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYM
(0°C to 70°C; V
CC
= 5.0V ± 5%)
TYP
MAX
TEST
CONDITION
MIN
UNITS
NOTES
Supply Voltage
High Level Input
Voltage
Low Level Input
Voltage
Input Leakage
Current
Active Current
V
CC
V
IH
4.75
2.2
5.00
5.25
V
V
1
1
V
CC
+ 0.5
V
IL
-0.5
0.8
V
1
I
1
0.0V
≤
V
I
≤
V
CC
-1.0
1.0
μA
I
CC
V
CC
=MAX;
Period=1 μs
V
CC
=MIN.
V
OH
=2.7V
V
CC
=MIN.
V
OL
=0.5V
30.0
mA
3
High Level Output
Current
Low Level Output
Current
I
OH
-1.0
mA
I
OL
8
mA
4
AC ELECTRICAL CHARACTERISTICS
PARAMETER
Clock Frequency
Enable Width
Clock Width
Data Setup to Clock
Data Hold from Clock
Data Setup to Enable
Data Hold from Enable
Enable to Serial
Output Valid
Enable to Serial
Output High Z
Clock to Serial
Output Valid
Clock to Serial
Output Invalid
Enable Setup to Clock
Enable Hold from Clock
Parallel Input Valid
to Delay Valid
(0°C to 70°C; V
CC
= 5V ± 5%)
TYP
MAX
UNITS
10
SYMBOL
f
C
t
EW
t
CW
t
DSC
t
DHC
t
DSE
t
DHE
t
EQV
MIN
NOTES
MHz
ns
ns
ns
ns
ns
ns
ns
50
50
30
10
30
20
Fig. 7, 8
Fig. 8
Fig. 8
Fig. 8
Fig. 7
Fig. 7
Fig. 8
50
t
EQZ
0
50
ns
Fig. 8
t
CQV
50
ns
Fig. 8
t
CQX
10
ns
Fig. 8
t
ES
t
EH
t
PDV
50
50
ns
ns
μs
Fig. 8
Fig. 8
Fig. 6
50