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M41T93RMY6F датащи(PDF) 38 Page - STMicroelectronics

номер детали M41T93RMY6F
подробное описание детали  Serial SPI bus RTC with battery switchover
PDF  49 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T93RMY6F датащи(HTML) 38 Page - STMicroelectronics

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DC and AC parameters
M41T93
38/49
Note:
1
Externally supplied if using the QFN16 package. STMicroelectronics recommends the
Citizen CFS-145 (1.5x5mm) and the KDS DT-38 (3x8mm) for thru-hole, or the KDS DMX-
26S (3.2x8mm) for surface-mount, tuning fork-type quartz crystals.
KDS can be contacted at kouhou@kdsj.co.jp or http://www.kdsj.co.jp.
Citizen can be contacted at csd@citizen-america.com or http://www.citizencrystal.com.
2
Load capacitors are integrated within the M41T93. Circuit board layout considerations for
the 32.768kHz crystal of minimum trace lengths and isolation from RF generating signals
should be taken into account.
3
Guaranteed by design.
1.
With default Analog Calibration value ( = 0).
2.
Reference value
3.
TA = 25°C, VCC = 5.0V.
Table 19.
Crystal electrical characteristics
Symbol
Parameter(1,2)
Min
Typ
Max
Units
fO
Resonant frequency
32.768
kHz
RS
Series resistance
65(3)
k
Ω
CL
Load capacitance
12.5
pF
Table 20.
Oscillator characteristics
Symbol
Parameter(1,2)
Conditions
Min
Typ
Max
Units
VSTA
Oscillator start voltage
≤4s
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)
–10
+10
ppm



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