R
EM6153
Timing Characteristics
VINPUT = 13.5 V, IL = 100 μA, CL = 10 μF + 100 nF, CINPUT = 22 μF, VINH = 5 V, Tj = -40 to + 125 °C, unless otherwise specified
Parameter
Symbol Test Conditions
Min.
Typ. Max. Units
Propagation delay TCL to Output Pins
VIN sensitivity
TDIDO
TSEN
250
3
500
15
ns
μs
VINhigh=1.1xVREF, VINlow=0.9xVREF
0.5
Watchdog Reset Pulse Period
TWDRP
TCL inactive
TCW + TOW+ TWDR
ms
Version V50
Power-on Reset delay
Closed Window Time
Open Window Time
Watchdog Time
Watchdog Reset Pulse Width if no TCL
TPOR
TCW
TOW
TWD
TWDR
ROSC= 121.6 kΩ ±1%
91.6
74
37
92.5
2.25
100
80
40
100
2.5
108.3
85.76
42.88
107.2
2.75
ms
ms
Version V53
Power-on Reset delay
Closed Window Time
Open Window Time
Watchdog Time
Watchdog Reset Pulse Width if no TCL
TPOR
TCW
TOW
TWD
TWDR
ROSC = 23.2 kΩ ±1%
4.57
9.24
18.48
18.48
5.0
10
20
20
5.44
10.77
21.54
21.54
0.56 0.625 0.69
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
TPOR
TCW
TOW
TWD
TWDR
ROSC = 107.5 kΩ ±1%
91.6
74
37
92.5
2.25
2.8
100
80
40
100
2.5
3.2
108.3
85.76
42.88
107.2
2.75
ms
TWDRS ROSC off; RINT=1MΩ
TWDRPS TCL inactive
3.6
750
1100 1450
Table 4
For different values of TWD and ROSC, see figures 9 to 11.
Timing Waveforms
Watchdog Timeout Period
Version V50:
Version V53:
For ROSC=121.6 kOhm
For ROSC=23.2 kOhm
TWD
TWD
TCW (closed window)
TOW (open)
TCW (closed)
TOW (open)
120
80
30
10
Watchdog
timer reset
Watchdog
timer reset
Time [ms]
Time [ms]
( V30, V50 and V55 have similar ratios for TCW and TOW
)
Fig. 4
Copyright © 2006, EM Microelectronic-Marin SA
06/06, rev. B, prelim.
5
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EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
