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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M41T83RM6F датащи(PDF) 41 Page - STMicroelectronics |
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M41T83RM6F датащи(HTML) 41 Page - STMicroelectronics |
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41 / 64 page  DocID012578 Rev 19 41/64 M41T82, M41T83 Clock operation 3.9 Square wave output (M41T83 only) The M41T83 offers the user a programmable square wave function which is output on the SQW pin. RS3-RS0 bits located in 13h establish the square wave output frequency. These frequencies are listed in Table 13. Once the selection of the SQW frequency has been completed, the SQW pin can be turned on and off under software control with the square wave enable bit (SQWE) located in register 0Ah. Note: If the SQWE bit is set to '1' and VCC falls below the switchover (VSO) voltage, the square wave output will be disabled. Table 13. Square wave output frequency Square wave bits Square wave RS3 RS2 RS1 RS0 Frequency Units 0 0 0 0 None – 0 0 0 1 32.768 kHz 0 0 1 0 8.192 kHz 0 0 1 1 4.096 kHz 0 1 0 0 2.048 kHz 0 1 0 1 1.024 kHz 0 1 1 0 512 Hz 0 1 1 1 256 Hz 1 0 0 0 128 Hz 1 0 0 1 64 Hz 1 0 1 0 32 Hz 1 0 1 1 16 Hz 1 1 0 0 8 Hz 1 1 0 1 4 Hz 1 1 1 0 2 Hz 1 1 1 1 1 Hz |
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