U5020M-FP TEMIC [TEMIC Semiconductors], U5020M-FP Datasheet - Page 5

• Manufacturer Part Number: U5020M-FP
• Description: Digital Window Watchdog Timer
• Manufacturer: TEMIC [TEMIC Semiconductors]

TELEFUNKEN Semiconductors
Rev. A3, 27-Feb-97
Figure 7 shows the switch-over from the short to the long
watchdog mode. The wake up signal during the enable
time, t
Application Hint
In order to prevent the IC from an undesired reset output signal which may be caused by transcients on the supply under
certain conditions a pc board connection from Pin 2 to GND is strongly recommended.
Absolute Maximum Ratings
Thermal Resistance
Supply voltage
Output current
Input voltage
Ambient temperature range
Storage temperature range
Junction ambient
Reset out
Wake-up
Mode
Trigger
Enable
5
, activates a reset pulse, t
Parameters
Parameters
SO16
6
.
t
2
Figure 7. Pulse diagram of the long watchdog time
Preliminary Information
t
4
The watchdog can be switched back from the long to the
short watchdog mode with a low potential at the mode pin
(Pin 12).
Symbol
Symbol
R
V
I
T
V
T
OUT
amb
thJA
DD
stg
IN
–0.5 V to V
–55 to +150
–40 to +85
t
5
Value
Value
"
160
6.5
DD
2
t
6
+ 0.5 V
U5020M
95 10640
t
1
Pin 12
Pin 11
Pin
Pin 10
Pins 3 to 8
K/W
Unit
Unit
mA
V
V
C
C
9
5 (8)