ne56625-20 NXP Semiconductors, ne56625-20 Datasheet - Page 7

• Manufacturer Part Number: ne56625-20
• Description: Ne56625-20 System Reset With Watchdog Timer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2003 Oct 15
System reset with Watchdog timer
Figure 13. Power-on reset delay time versus temperature.
Figure 9. Battery check LOW-level output voltage versus
Figure 11. RESET and battery detection voltages versus
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.40
100
80
60
40
20
–25
0
–25
I
V
V
BC
BC
CC
= 5 mA
2
= 0.5 V
= 2.0 V
BATTERY CHECK OUTPUT SINK CURRENT, I
battery check output sink current
4
0
0
AMBIENT TEMPERATURE, T
AMBIENT TEMPERATURE, T
T
amb
V
V
SHR
6
SHB
temperature.
= +75 C
T
amb
8
25
25
= +100 C
V
10
SLR
T
amb
12
V
C
V
50
CC
CC
50
T
= 0.022 F
= –25 C
amb
= 2.4 V
rising from 0 V to 2.4 V
amb
14
V
SLB
( C)
( C)
T
OLB
amb
16
75
75
(mA)
= +25 C
18
SL01824
SL01826
SL01828
20
100
100
7
Figure 14. Watchdog monitoring time versus temperature.
Figure 12. RESET and battery hysteresis voltages versus
Figure 10. LOW-level RESET output voltage versus
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
140
120
100
90
85
80
75
70
65
60
200
180
160
95
80
60
40
20
–25
0.0
–25
I
V
V
V
RESET
RESET
CC
S
= 0 V
0.3
= 2.0 V
= 500 A
T
= 0.5 V
amb
RESET output sink current.
RESET OUTPUT SINK CURRENT, I
0.6
0
0
AMBIENT TEMPERATURE, T
= +100 C
AMBIENT TEMPERATURE, T
0.9
V
temperature.
SL
V
T
amb
HYSR
1.2
25
25
= +75 C
T
amb
1.5
= –25 C
V
1.8
HYSB
50
NE56625-20
50
amb
amb
2.1
OLR
( C)
( C)
C
(mA)
V
R
T
T
CC
CT
amb
= 0.022 F
75
2.4
75
= 2.4 V
= OPEN
Product data
= +25 C
2.7
SL01825
SL01827
SL01829
100
100
3.0