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QT1101 Datasheet(PDF) 3 Page - Quantum Research Group |
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QT1101 Datasheet(HTML) 3 Page - Quantum Research Group |
3 / 16 page 1.1 Wiring Table 1.1 Pinlist Vdd Input for 2W mode 2W Receive I RX 32 32 - Requires pull-up to Vdd 1W mode serial I/O I/OD 1W 31 31 100K ✡ resistor to Vss 0 = a key state has changed Requires pull-up State changed OD /CHANGE 30 30 Open - - - n/c 29 29 Open To Cs9 + Key Sense pin I/O SNS9K 28 28 Open To Cs9 Sense pin I/O SNS9 27 27 Open To Cs8 + Key Sense pin I/O SNS8K 26 26 Open To Cs8 Sense pin I/O SNS8 25 25 Open - - - n/c 23, 24 - Open See Table 1.4 Detect Status O/OD DETECT 22 24 Vdd or Vss** Rising edge sync or LP pulse Sync In or LP In I SYNC/LP‡ 21 23 Open - - - n/c 18, 19, 20 - - 0V Ground Pwr Vss 17 22 Open - - - n/c 11, 12, 13, 14, 15, 16 - Open To Cs7 + Key Sense pin I/O SNS7K 10 21 Open or mode resistor† or option resistor* To Cs7 and/or mode resistor† or option resistor* Sense pin and mode or option select I/O SNS7 9 20 Open or mode resistor† To Cs6 + Key and/or mode resistor† Sense pin and mode select I/O SNS6K 8 19 Open or option resistor* To Cs6 and/or option resistor* Sense pin and option select I/O SNS6 7 18 Open To Cs5 + Key Sense pin I/O SNS5K 6 17 Open or option resistor* To Cs5 and/or option resistor * Sense pin and option select I/O SNS5 5 16 Open To Cs4 + Key Sense pin I/O SNS4K 4 15 Open To Cs4 Sense pin I/O SNS4 3 14 Open To Cs3 + Key Sense pin I/O SNS3K 2 13 Open or option resistor* To Cs3 and/or option resistor* Sense pin and option select I/O SNS3 1 12 Open To Cs2 + Key Sense pin I/O SNS2K 48 11 Open or option resistor* To Cs2 and/or option resistor* Sense pin and option select I/O SNS2 47 10 Open To Cs1 + Key Sense pin I/O SNS1K 46 9 Open or option resistor* To Cs1 and/or option resistor* Sense pin and option select I/O SNS1 45 8 Open To Cs0 + Key Sense pin I/O SNS0K 44 7 Open or option resistor* To Cs0 and/or option resistor Sense pin and option select I/O SNS0 43 6 Open - - - n/c 39, 40, 41, 42 - - Leave open - - n/c 38 5 - Resistor to Vdd and optional spread spectrum RC network Oscillator I OSC 37 4 - +2.8 ~ +5.0V Power Pwr Vdd 36 3 Vdd Active low reset Reset input I /RST 35 2 Open - - - n/c 34 - 100K ✡ resistor to Vss Spread spectrum drive Spread spectrum OD SS 33 1 If Unused Notes Function Type Name 48 SSOP Pin 32-QFN Pin Pin Type I CMOS input only I/O CMOS I/O OD CMOS open drain output I/OD CMOS input or open drain output O/OD CMOS push pull or open-drain output (option selected) Pwr Power / ground Notes † Mode resistor is required only in Simplif ied mode (see Figure 1.2) * Option resistor is required only in Full Options mode (see Figure 1.1) ‡ Pin is either Sync or LP depending on options selected (functions SL_0, SL_1, see Figure 1.1) ** See text Lq 3 QT1101 R4.06/0806 |
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