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M41T62 датащи(PDF) 23 Page - STMicroelectronics

номер детали M41T62
подробное описание детали  Low-power serial real-time clocks (RTCs) with alarm
PDF  42 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T62 датащи(HTML) 23 Page - STMicroelectronics

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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.
Table 11. Operating and AC measurement conditions
Parameter
M41T6x
Supply voltage (VCC)
1.3 V to 4.4 V
Ambient operating temperature (TA)
–40 to 85 °C
Load capacitance (CL)
50 pF
Input rise and fall times
≤ 5 ns
Input pulse voltages
0.2 VCC to 0.8 VCC
Input and output timing ref. voltages
0.3 VCC to 0.7 VCC
Note:
Output Hi-Z is defined as the point where data is no longer driven.
Figure 22. AC measurement I/O waveform
0.8VCC
0.2VCC
0.7VCC
0.3VCC
Figure 23. Crystal isolation example
Crystal
XI
XO
GND
Local Grounding Plane
(Layer 2)
Note:
Substrate pad should be tied to VSS.
M41T62, M41T64, M41T65
DC and AC parameters
DS3840 - Rev 24
page 23/42



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