Datasheet

DocID12615 Rev 8 47/56
M41T93 DC and AC parameters
56
Figure 22. Power down/up mode AC waveforms
Table 21. 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
Reset pulse width (V
CC
rising) 140 280 ms
V
CC
to reset delay, V
CC
= (V
RST
+ 100 mV), falling to
(V
RST
– 100 mV; for V
CC
slew rate of 10 mV/μs
2.5 μs
AI11839
V
CC
trec
tPD
V
SO
SCL
SDI
DON'T CARE