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M41T63 датащи(PDF) 31 Page - STMicroelectronics

номер детали M41T63
подробное описание детали  Serial Access Real-Time Clock with Alarms
PDF  40 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T63 датащи(HTML) 31 Page - STMicroelectronics

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M41T62/63/64/65
DC and AC parameters
31/40
5
DC and AC parameters
This section summarizes the operating and measurement conditions, as well as the DC and
AC characteristics of the device. The parameters in the following DC and AC Characteristic
tables are derived from tests performed under the Measurement Conditions listed in the
relevant tables. Designers should check that the operating conditions in their projects match
the measurement conditions when using the quoted parameters.
Figure 23.
AC measurement I/O waveform
Figure 24.
Crystal isolation example
1.
Substrate pad should be tied to VSS.
Table 12.
Operating and AC measurement conditions(1)
1.
Output Hi-Z is defined as the point where data is no longer driven.
Parameter
M41T6x
Supply voltage (VCC)
1.3V to 4.4V
Ambient operating temperature (TA)
–40 to 85°C
Load capacitance (CL)
50pF
Input rise and fall times
≤5ns
Input pulse voltages
0.2VCC to 0.8 VCC
Input and output timing ref. voltages
0.3VCC to 0.7 VCC
AI02568
0.8VCC
0.2VCC
0.7VCC
0.3VCC
AI09127
Crystal
XI
XO
GND
Local Grounding Plane
(Layer 2)



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