qt1100a Quantum Research Group, qt1100a Datasheet - Page 7

• Manufacturer Part Number: qt1100a
• Description: 10 Key Qtouch? Sensor Ic
• Manufacturer: Quantum Research Group

Table 1.4 SPI Pinlist
With or without EEPROM
LQ
Pin
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
I
I/O
O
OD
Pwr
LED/STAT
CMODE
SNS3K
SNS4K
SNS5K
SNS6K
SNS7K
SNS8K
SNS9K
SNS0K
SNS1K
SNS2K
Name
WAKE
CKEE
DOEE
CRDY
CSEE
SYNC
SNS3
SNS4
SNS5
SNS6
SNS7
SNS8
SNS9
OSC1
OSC2
SNS0
SNS1
SNS2
DIEE
CLK
RST
Vdd
Vss
/SS
DO
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
DI
CMOS input
CMOS I/O
CMOS output (push-pull)
CMOS open drain I/O
Power / ground
Type
Pwr
Pwr
OD
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
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
-
-
I
-
I
I
I
I
I
I
I
I
I
I
-
-
-
-
SPI Slave select
SPI handshake
Comms select
LED & Status
Reset input
Function
Resonator
Resonator
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
Sense pin
EEPROM
EEPROM
EEPROM
EEPROM
SPI clock
SPI data
SPI data
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Ground
unused
Sync In
Power
Wake
EEPROM chip select; Use pull-down R
12MHz - Can also be ext clock in
1 = Comms ready; Use pull-up R
7
Data in from EEPROM
To host; use pull-up R
Data out to EEPROM
Always use pull-up R
Clock to EEPROM
Wake from sleep
To CS3 + Key
To CS4 + Key
To CS5 + Key
To CS6 + Key
To CS7 + Key
To CS8 + Key
To CS9 + Key
To CS0 + Key
To CS1 + Key
To CS2 + Key
+3.3 ~ +5V
From host
From host
From host
Active low
To CS3
To CS4
To CS5
To CS6
To CS7
To CS8
To CS9
To CS0
To CS1
To CS2
To Vdd
Notes
To Vss
To Vss
To Vss
0V
-
-
-
-
-
-
-
-
-
Copyright © 2003-2005 QRG Ltd
QT1100A-ISG R3.02/1105
20K ~ 220K to Vdd
Vss or open
Vss or open
Vss or open
Vss or open
Vss or open
Vss or open
Vss or open
Vss or open
Vss or open
Vss or open
If Unused
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Vdd
Vdd
Vss
Vdd
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-