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QST1508MH1 Datasheet(PDF) 7 Page - STMicroelectronics |
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QST1508MH1 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 51 page QST108 Pin description 7/51 6 RESET BD Reset (active low) 10nF capacitor to ground 7 NC Not connected 8VDD_1 S Supply voltage 9VSS_1 S Ground voltage 10 VSS_2 S Ground voltage 11 VSS_3 S Ground voltage 12 VSS_4 S Ground voltage 13 VDD_2 S Supply voltage 14 SNS_SCK1 SNS Key 1 sense pin to Cs Open 15 SNSK_SCK1 SNS Key 1 sense pin to Cs/Rs Open 16 SNS_SCK2 SNS Key 2 sense pin to Cs Open 17 SNSK_SCK2 SNS Key 2 sense pin to Cs/Rs Open 18 SNS_SCK3 SNS Key 3 sense pin to Cs Open 19 SNSK_SCK3 SNS Key 3 sense pin to Cs/Rs Open 20 SNS_SCK4 SNS Key 4 sense pin to Cs Open 21 SNSK_SCK4 SNS Key 4 sense pin to Cs/Rs Open 22 SNS_SCK5 SNS Key 5 sense pin to Cs Open 23 SNSK_SCK5 SNS Key 5 sense pin to Cs/Rs Open 24 SNS_SCK6 SNS Key 6 sense pin to Cs Open 25 SNSK_SCK6 SNS Key 6 sense pin to Cs/Rs Open 26 SNS_SCK7 SNS Key 7 sense pin to Cs Open 27 SNSK_SCK7 SNS Key 7 sense pin to Cs/Rs Open 28 SNS_SCK8 SNS Key 8 sense pin to Cs Open 29 SNSK_SCK8 SNS Key 8 sense pin to Cs/Rs Open 30 GPO1/OPT1/KOUT1 (2) PP (HS) Key 1 output / BCD output 1 and MODE option resistor General purpose output 1 and MODE option resistor Option resistor 31 GPO2/OPT2/KOUT2 (2) PP (HS) Key 2 output / BCD output 2 and AKS option resistor General purpose output 2 and I2C address bit 0 option resistor Option resistor 32 GPO3/OPT3/KOUT3 (2) PP (HS) Key 3 output / BCD output 3 and LP option resistor General purpose output 3 and I2C address bit 1 option resistor Option resistor 1. S: supply pin, BD: bidirectional pin, SNS: capacitive sensing pin, PP: Output push-pull, OD: Output open-drain, TOD: Output true open-drain and HS: 20mA high sink capability (on N-buffer only) 2. During the reset phase, these pins are floating and their state depends on the option resistor. 3. An external pull-up is required on these pins. Table 2. Device pin description (continued) Pin Pin name Type (1) Stand-alone mode function I2C mode function If unused |
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