Tde Instruments 7401AS Scheda Tecnica
2
Draft
Supply
2.6 - 3.4VDC
Current consumption
<10µA, 5µA typical.
Reset Button
The 7400 has a Reset Button.
The 7401 does not.
The 7401 does not.
Display
8 digit black LCD, 8mm characters
Count Range
99999999 - rollover to 0
Operating temperature
-10°C to +60°C
Storage temperature
-20°C to +60°C
Altitude
Up to 2000m
Relative Humidity
80% max up to 31°C, decreasing to 50%
max at 40°C
max at 40°C
Specification
R
2
–
1 D +
Connections
Note:
This product is ideally suited to battery powered applications. Should the product be used
in a circuit where an external power source is used, then the complete system will require
separate approval to meet the CE standards.
This product is ideally suited to battery powered applications. Should the product be used
in a circuit where an external power source is used, then the complete system will require
separate approval to meet the CE standards.
–
D
+
R
–
+
–
1
2.6 - 3.4V
<= +18V
+
2
–
+
High Speed Count
(TTL/CMOS)
(TTL/CMOS)
Low Speed Count
(Contact Closure/
(Contact Closure/
Open Collector)
External Reset
(Contact Closure/
Open Collector)
(Contact Closure/
Open Collector)
Direction
(TTL/CMOS)
(TTL/CMOS)
This product can be powered from a higher
voltage DC supply using the external voltage
control circuit shown on page 7.
voltage DC supply using the external voltage
control circuit shown on page 7.
up
down
internal
resistor
resistor
internal
resistor
resistor
internal
resistor
resistor
<=5KHz
<=18V
0.7V
=>100 S
µ
<=20Hz
<=18V
0.7V
=>25mS
<=18V
0.7V
<=18V
0.7V
=>15mS
740001.qxd 04/01/02 14:36 Page 2