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M41T82 数据表(PDF) 8 Page - STMicroelectronics |
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M41T82 数据表(HTML) 8 Page - STMicroelectronics |
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8 / 61 page  Description M41T82-M41T83 8/61 Doc ID 12578 Rev 12 Table 1. Signal names Symbol Description XI(1) 1. For SO8 and QFN16 packages only. 32 KHz oscillator input XO(1) 32 KHz oscillator output IRQ1/OUT/FT(2) 2. For SOX18 and QFN16 packages only. Interrupt 1/output driver/frequency test output (open drain) SQW(3) 3. Defaults to 32 KHz on power-up. 32 KHz programmable square wave output RST Power-on reset output (open drain) FT/RST Frequency test output/power-on reset (open drain - M41T82 only) IRQ2(2) Interrupt for alarm 2 (open drain) SDA Serial data address input/output SCL Serial clock input VBAT Battery supply voltage (tie VBAT to VSS if no battery is connected.) DU(4) 4. DU pin must be tied to VCC. Do not use VCC Supply voltage VSS Ground |
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