UM809_15 Datasheet, PDF (4/14 Pages) Union Semiconductor, Inc. – 3-Pin Microprocessor Reset Circuits

Block Diagram
VCC
UM809/810
-
+
1.2V
RESET
GENERATOR
RESET
GND GND
Typical Operating Circuit
VCC
VCC
UM809/810
RESET
(RESET)*
GND
VCC
PROCESSOR
RESET
INPUT
GND
( )* for UM810
Typical Characteristics
The following data is given for UM809 threshold levels: 2.63V, 3.08V, 4.00V and 4.38V.
UM810 threshold levels: 2.63V, 2.93V, 3.08V, 4.38V and 4.63V.
6
6
5
5
4
VCC=5V
3
2
VCC=3V
1
0
-40
-20
0
20
40
60
85
TEMPERATURE(^oC)
Figure 1. Supply Current vs Temperature
(No Load, SOT323)
4
VCC=5V
3
2
VCC=3V
1
0
-40
-20
0
20
40
60
85
TEMPERATURE(^oC)
Figure 2. Supply Current vs Temperature
(No Load, SOT23-3)
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