qt1100a Quantum Research Group, qt1100a Datasheet - Page 4

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

Table 1.1 Scanport / UART Pinlist
With or without EEPROM; either UART or Scanport or both may be used
LQ
Pin
25
26
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
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
SCANO_0
SCANO_1
SCANO_2
SCANO_3
RX/WAKE
SCANI_2
SCANI_1
SCANI_0
CMODE
SNS3K
SNS4K
SNS5K
SNS6K
SNS7K
SNS8K
SNS9K
SNS0K
SNS1K
SNS2K
Name
DOEE
CRDY
SYNC
CKEE
CSEE
OSC1
OSC2
SNS3
SNS4
SNS5
SNS6
SNS7
SNS8
SNS9
SNS0
SNS1
SNS2
DIEE
RST
Vdd
Vss
n/c
n/c
n/c
n/c
n/c
n/c
TX
CMOS input
CMOS I/O
CMOS output (push-pull)
CMOS open drain I/O
Power / ground
I/O, OD
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
O
O
O
O
O
O
O
O
O
-
-
I
I
I
I
I
I
I
I
-
-
-
-
UART, Wakeup
Comms select
LED & Status
Scanport out
Scanport out
Scanport out
Scanport out
Handshake
Scanport in
Scanport in
Scanport in
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
Unused
Unused
Unused
Unused
Unused
Unused
Ground
Sync in
Power
UART
EEPROM chip select; use pull-down-R
Serial to host; If used, use pull-up-R
4
12MHz - Can also be ext clock in
1 = Comms ready; use pull-up-R
Serial in / Wake from sleep
Data in from EEPROM
Data out to EEPROM
Always use pull-up R
Clock to EEPROM
To CS3 + Key
To CS4 + Key
To CS5 + Key
To CS6 + Key
To CS7 + Key
To CS8 + Key
To CS9 + Key
See Table 2.1
See Table 2.1
See Table 2.1
See Table 2.1
See Table 2.1
See Table 2.1
See Table 2.1
To CS0 + Key
To CS1 + Key
To CS2 + Key
+3.3 ~ +5V
Active low
To CS3
To CS4
To CS5
To CS6
To CS7
To CS8
To CS9
To CS0
To CS1
To CS2
Notes
To Vss
0V
-
-
-
-
-
-
-
-
Copyright © 2003-2005 QRG Ltd
QT1100A-ISG R3.02/1105
10K ~ 220K to Vdd
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
Open
Open
Open
Open
Vdd
Vdd
Vdd
Vss
Vss
Vss
Vss
-
-
-
-
-
-
-
-
-
-