U5021M_05 ATMEL [ATMEL Corporation], U5021M_05 Datasheet - Page 9

• Manufacturer Part Number: U5021M_05
• Description: Digital Window Watchdog Timer
• Manufacturer: ATMEL [ATMEL Corporation]

8. Electrical Characteristics (Continued)
V
9. Ordering Information
10. Package Information
4756D–AUTO–11/05
Parameters
Timing
Frequency deviation
Debounce time
Debounce time
Maximum trigger pulse length
Power-up reset time
Switch over mode time
Disable time
Enable time
Disable time
Enable time
Reset-out time
Note:
Extended Type Number
U5021M-NFPY
U5021M-NFPG3Y
DD
= 5 V; T
1. Frequency deviation also depends on the tolerances of the external components
amb
= -40°C to +85°C; reference point is pin 7, unless otherwise specified
(1)
Package SO8
Dimensions in mm
Test Conditions
R
V
Short watchdog window
Short watchdog window
Long watchdog window
Long watchdog window
DD
1
= 66 k , C
= 4.5 V to 5.5 V
0.4
1
8
1
1.27
= 470 pF,
5.00
4.85
3.81
Package
SO8
SO8
5
4
1.4
0.25
0.10
2, 3
Pin
1
Remarks
Tubed, Pb-free
Taped and reeled, Pb-free
technical drawings
according to DIN
specifications
Symbol
t
trgmax
t
t
t
t
t
t
t
o
1
2
3
4
5
6
f
6.15
5.85
5.2
4.8
3.7
3.8
Min.
96
3
0.2
71,970
30,002
1,112
Typ.
201
130
124
45
40
Max.
128
U5021M
5
4
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Unit
%
9