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M41T62 데이터시트(PDF) 25 Page - STMicroelectronics |
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M41T62 데이터시트(HTML) 25 Page - STMicroelectronics |
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25 / 33 page ![]() 25/33 M41T62/63/64/65 DC AND AC PARAMETERS This section summarizes the operating and mea- surement 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 Measure- ment Conditions listed in the relevant tables. De- signers should check that the operating conditions in their projects match the measurement condi- tions when using the quoted parameters. Table 12. Operating and AC Measurement Conditions Note: Output Hi-Z is defined as the point where data is no longer driven. Figure 25. AC Measurement I/O Waveform Figure 26. Crystal Isolation Example Note: Substrate pad should be tied to VSS. Table 13. Capacitance Note: 1. Effective capacitance measured with power supply at 3.6V; sampled only, not 100% tested. 2. At 25°C, f = 1MHz. 3. Outputs deselected. Parameter M41T6x Supply Voltage (VCC) 1.3V to 3.6V 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) Symbol Parameter(1,2) Min Max Unit CIN Input Capacitance 7 pF COUT (3) Output Capacitance 10 pF tLP Low-pass filter input time constant (SDA and SCL) 50 ns |
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