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M41T93RMY6F датащи(PDF) 39 Page - STMicroelectronics

номер детали M41T93RMY6F
подробное описание детали  Serial SPI bus RTC with battery switchover
PDF  51 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T93RMY6F датащи(HTML) 39 Page - STMicroelectronics

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M41T93
DC and AC parameters
39/51
Figure 17.
ICC2 vs. temperature
Table 19.
Crystal electrical characteristics
Symbol
Parameter(1)(2)
1.
Externally supplied if using the QFN16 package. STMicroelectronics recommends the Citizen CFS-145
(1.5 x 5 mm) and the KDS DT-38 (3 x 8 mm) for thru-hole, or the KDS DMX-26S (3.2 x 8 mm) or Micro
Crystal MS3V-T1R (1.5 x 5 mm) for surface-mount, tuning fork-type quartz crystals. For contact
information, see Section 8: References on page 49.
2.
Load capacitors are integrated within the M41T93. Circuit board layout considerations for the 32.768 kHz
crystal of minimum trace lengths and isolation from RF generating signals should be taken into account.
Min
Typ
Max
Units
fO
Resonant frequency
32.768
kHz
RS
Series resistance
65(3)
3.
Guaranteed by design.
k
Ω
CL
Load capacitance
12.5
pF
Table 20.
Oscillator characteristics
Symbol
Parameter(1)(2)
1.
With default analog calibration value ( = 0)
2.
Reference value
Conditions
Min
Typ
Max
Units
VSTA
Oscillator start voltage
≤4 s
2.0
V
tSTA
Oscillator start time
VCC = VSO
1s
CXI, CXO
(1)
Capacitor input, capacitor output
25
pF
IC-to-IC frequency variation(2)(3)
3.
TA = 25°C, VCC = 5.0 V
–10
+10
ppm
ai 13909
2.000
3.000
4.000
5.000
6.000
7.000
8.000
9.000
10.000
-40
-20
0
20
40
60
80
Temperature (˚C)
(3.0V)
(5.0V)



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