1.3 Wiring
Table 1.1 Pin Descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Name
SS
/RST
Vdd
OSC
n/c
SNS0
SNS0K
SNS1
SNS1K
SNS2
SNS2K
SNS3
SNS3K
SNS4
SNS4K
SNS5
SNS5K
SNS6
SNS6K
SNS7
SNS7K
Vss
SYNC/LP
‡
DETECT
SNS8
SNS8K
SNS9
SNS9K
n/c
/CHANGE
1W
RX
Type
OD
I
P
I
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
P
I
O/OD
I/O
I/O
I/O
I/O
-
OD
I/OD
I
Function
Spread spectrum
Reset input
Power
Oscillator
-
Sense pin and
option select
Sense pin
Sense pin and
option select
Sense pin
Sense pin and
option select
Sense pin
Sense pin and
option select
Sense pin
Sense pin
Sense pin
Sense pin and
option select
Sense pin
Sense pin and
option select
Sense pin and
mode select
Sense pin and mode
or option select
Sense pin
Ground
Sync In or LP In
Detect Status
Sense pin
Sense pin
Sense pin
Sense pin
-
State changed
1W mode serial I/O
2W Receive
Notes
Spread spectrum drive
Active low reset
+2.8 ~ +5.0V
Resistor to Vdd and optional
spread spectrum RC network
Leave open
To Cs0 and/or
option resistor
To Cs0 + Key
To Cs1 and/or
option resistor*
To Cs1 + Key
To Cs2 and/or
option resistor*
To Cs2 + Key
To Cs3 and/or
option resistor*
To Cs3 + Key
To Cs4
To Cs4 + Key
To Cs5 and/or
option resistor *
To Cs5 + Key
To Cs6 and/or
option resistor*
To Cs6 + Key and/or
mode resistor
†
To Cs7 and/or mode resistor
†
or option resistor*
To Cs7 + Key
0V
Rising edge sync or LP pulse
See Table 1.4
To Cs8
To Cs8 + Key
To Cs9
To Cs9 + Key
-
0 = a key state has changed
Requires pull-up
Requires pull-up to Vdd
Input for 2W mode
100k
If Unused
resistor to Vss
-
-
-
-
Open or
option resistor*
Open
Open or
option resistor*
Open
Open or
option resistor*
Open
Open or
option resistor*
Open
Open
Open
Open or
option resistor*
Open
Open or
option resistor*
Open or
mode resistor
†
Open or mode resistor
†
or option
resistor*
Open
-
Vdd or Vss**
Open
Open
Open
Open
Open
Open
100k
resistor to Vss
-
Vdd
Pin Type
I
I/O
OD
I/OD
O/OD
P
CMOS input only
CMOS I/O
CMOS open drain output
CMOS input or open drain output
CMOS push-pull or open-drain output (option selected)
Ground or power
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)
** See text
Lq
5
QT1103_3R0.03_0607
QUANTUM [ QUANTUM RESEARCH GROUP ]
