1.1 Wiring
Table 1.1 Pinlist
32-QFN 48 SSOP
Pin
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
33
34
35
36
37
38
39, 40,
41, 42
43
44
45
46
47
48
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
n/c
/RST
Vdd
OSC
n/c
n/c
SNS0
SNS0K
SNS1
SNS1K
SNS2
SNS2K
SNS3
SNS3K
SNS4
SNS4K
SNS5
SNS5K
SNS6
SNS6K
SNS7
SNS7K
n/c
Vss
n/c
SYNC/LP
‡
DETECT
n/c
SNS8
SNS8K
SNS9
SNS9K
n/c
/CHANGE
1W
RX
Type
OD
-
I
Pwr
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
-
Pwr
-
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
If Unused
100K✡ resistor to Vss
Open
Vdd
-
-
-
Open
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
Open
-
Open
Vdd or Vss**
Open
Open
Open
Open
Open
Open
Open
100K✡ resistor to Vss
-
Vdd
Pin Type
I
I/O
OD
I/OD
O/OD
Pwr
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)
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
QUANTUM [ QUANTUM RESEARCH GROUP ]
