R
EM6151
Timing Characteristics
V
DD
= 5.0 V, T
j
= -40 to +125
°C,
unless otherwise specified
Parameter
Propagation delay
TCL
to Output Pins
V
IN
sensitivity
Watchdog Reset Pulse Period
Version V30
Power-on Reset delay
Closed Window Time
Open Window Time
Watchdog Time
Watchdog Reset Pulse Width if no
TCL
Version V50
Power-on Reset delay
Closed Window Time
Open Window Time
Watchdog Time
Watchdog Reset Pulse Width if no
TCL
Version V53
Power-on Reset delay
Closed Window Time
Open Window Time
Watchdog Time
Watchdog Reset Pulse Width if no
TCL
Version V55
Power-on Reset delay
Closed Window Time
Open Window Time
Watchdog Time
Watchdog Reset Pulse Width if no
TCL
Watchdog Reset Pulse Width in Sleep Mode
Watchdog Reset Pulse Period in Sleep Mode
Symbol
T
DIDO
T
SEN
T
WDRP
T
POR
T
CW
T
OW
T
WD
T
WDR
T
POR
T
CW
T
OW
T
WD
T
WDR
T
POR
T
CW
T
OW
T
WD
T
WDR
T
POR
T
CW
T
OW
T
WD
T
WDR
T
WDRS
T
WDRPS
Test Conditions
V
INhigh
=1.1
x
V
REF
, V
INlow
=0.9
x
V
REF
TCL
inactive
R
OSC
= 116.9 kΩ
±1%
Min.
Typ.
Max.
250
500
1
5
20
T
CW
+ T
OW
+ T
WDR
100
80
40
100
2.5
100
80
40
100
2.5
5.0
10
20
20
0.625
100
80
40
100
2.5
3.2
1100
108.3
85.76
42.88
107.2
2.75
108.3
85.76
42.88
107.2
2.75
5.44
10.77
21.54
21.54
0.69
108.3
85.76
42.88
107.2
2.75
3.6
1450
Units
ns
μs
ms
91.6
74
37
92.5
2.25
91.6
74
37
92.5
2.25
4.57
9.24
18.48
18.48
0.56
91.6
74
37
92.5
2.25
2.8
750
ms
R
OSC
= 121.6 kΩ
±1%
ms
R
OSC
= 23.2 kΩ
±1%
ms
R
OSC
= 107.5 kΩ
±1%
ms
R
OSC
off; R
INT
=1MΩ
TCL
inactive
Table 4
For different values of T
WD
and R
OSC
, see figures 9 to 12.
Timing Waveforms
Watchdog Timeout Period
Version V50:
T
WD
For R
OSC
=121.6 kOhm
Version V53:
T
WD
For R
OSC
=23.2 kOhm
T
CW
(closed window)
T
OW
(open)
T
CW
(closed)
T
OW
(open)
Watchdog
timer reset
80
120
Time [ms]
Watchdog
timer reset
10
30
Time [ms]
( V30, V50 and V55 have similar ratios for T
CW
and T
OW
)
Fig. 4
Copyright © 2005, EM Microelectronic-Marin SA
rev. B / 06.06
4
www.emmicroelectronic.com
EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
