Datasheet

DC and AC parameters M41T82, M41T83
54/64 DocID012578 Rev 16
Figure 28. Power down/up mode AC waveforms
Table 24. Power down/up trip points DC characteristics
Sym Parameter
(1)(2)
1. All voltages referenced to V
SS
2. Valid for ambient operating temperature: T
A
= –40 to 85 °C; V
CC
= 2.38 to 5.5 V (except where noted)
Min Typ Max Unit
V
RST
Reset threshold voltage
S 2.85 2.93 3.0 V
R 2.55 2.63 2.7 V
Z 2.25 2.32 2.38 V
V
SO
Battery backup switchover V
RST
V
Hysteresis 25 mV
t
rec
RST duration after V
CC
high 140 280 ms
t
RD
V
CC
to reset delay
(3)
3. Measured with V
CC
falling slew rate of 10 mV/μs for V
CC
in the range V
RST
+ 100 mV to V
RST
– 100 mV
2.5 μs
AI00596
V
CC
t
rec
V
SO
SDA, SCL
DON'T CARE
V
RST
RST
t
RD