1.2 Wiring
Table 1.1 Pinlist
OpenOut 7O/ODOUT_73232
OpenOut 6O/ODOUT_63131
OpenOut 5O/ODOUT_53030
OpenOut 4O/ODOUT_42929
Open
In binary coded mode, these
pins are clamped internally to
Vss
Out 3O/ODOUT_32828
Open
Also, binary coded output 2
Out 2O/ODOUT_22727
OpenAlso, binary coded output 1Out 1O/ODOUT_12626
OpenAlso, binary coded output 0Out 0O/ODOUT_02525
-Leave open--n/c23, 24 -
OpenActive = any key in detectDetect StatusO/ODDETECT2224
Vdd or VssRising edge sync or LP pulseSync In or LP InISYNC/LP
‡
2123
-Leave open--n/c18, 19, 20 -
-0VGroundPwrVss1722
-Leave open--n/c
11, 12, 13,
14, 15, 16
-
OpenTo Cs7 + KeySense pinI/OSN7K1021
Open or mode
resistor
†
or option
resistor*
To Cs7 and/or mode resistor
†
or option resistor*
Sense pin and mode
or option select
I/OSNS7920
Open or
mode resistor
†
To Cs6 + Key and/or
mode resistor
†
Sense pin and
mode select
I/OSNS6K819
Open or
option resistor*
To Cs6 and/or
option resistor*
Sense pin and
option select
I/OSNS6718
OpenTo Cs5 + KeySense pinI/OSNS5K617
Open or
option resistor*
To Cs5 and/or
option resistor*
Sense pin and
option select
I/OSNS5516
OpenTo Cs4 + KeySense pinI/OSNS4K415
Open or
option resistor*
To Cs4 and/or
option resistor*
Sense pin and
option select
I/OSNS4314
OpenTo Cs3 + KeySense pinI/OSNS3K213
Open or
option resistor*
To Cs3 and/or
option resistor*
Sense pin and
option select
I/OSNS3112
OpenTo Cs2 + KeySense pinI/OSNS2K4811
Open or
option resistor*
To Cs2 and/or
option resistor*
Sense pin and
option select
I/OSNS24710
OpenTo Cs1 + KeySense pinI/OSNS1K469
Open or
option resistor*
To Cs1 and/or
option resistor*
Sense pin and
option select
I/OSNS1458
OpenTo Cs0 + KeySense pinI/OSNS0K447
Option resistor
To Cs0 and/or
option resistor
Sense pin and
option select
I/OSNS0436
-Leave open--n/c
38, 39, 40,
41, 42
5
-
Resistor to Vdd and optional
spread spectrum RC network
OscillatorIOSC374
-+2.8 ~ +5.0VPowerPwrVdd363
VddActive low resetReset inputI/RST352
-Leave open--n/c34 -
100K resistor to VssSpread spectrum driveSpread spectrumODSS331
If UnusedNotesFunctionTypeName
48-SSOP
Pin
32-QFN
Pin
Pin Type
I CMOS input only
I/O CMOS I/O
O CMOS push-pull output
OD CMOS open drain output
O/OD CMOS push pull or open-drain output (option selected)
Pwr Power / ground
Notes
†
Mode resistor is required only in Simplified 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)
lQ
4 QT1080 R11.06/0806
