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PDF QST608 Data sheet ( Hoja de datos )
| Número de pieza | QST608 | |
| Descripción | Capacitive touch sensor device | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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www.datasheet4u.com
QST608
Capacitive touch sensor device
with rotor or slider plus five extra keys and I2C interface
Preliminary Data
Features
■ Patented charge-transfer design
■ Rotor (or slider) plus five extra keys
■ Up to five general-purpose outputs
■ I2C interface
■ Fully “debounced” results
■ Patented AKS™ Adjacent Key Suppression
■ Self-calibration and auto drift compensation
■ Spread-spectrum bursts to reduce EMI
■ ECOPACK® (RoHS compliant) packages
Applications
This device specifically targets human interfaces
and front panels for a wide range of applications
such as PC peripherals, home entertainment
systems, gaming devices, lighting and appliance
controls, remote controls, etc.
QST devices are designed to replace mechanical
switching/control devices and the reduced
number of moving parts in the end product
provides the following advantages:
■ Lower customer service costs
■ Reduced manufacturing costs
■ Increased product lifetime
LQFP32 (7x7 mm)
Description
The QST608 is the ideal solution for the design of
capacitive touch sensing user interfaces.
Touch-sensitive controls are increasingly
replacing electromechanical switches in home
appliances, consumer and mobile electronics,
and in computers and peripherals. Capacitive
touch controls allow designers to create stylish,
functional, and economical designs which are
highly valued by consumers, often at lower cost
than the electromechanical solutions they
replace.
The QST608 QTouch™ sensor IC is a pure digital
solution based on Quantum's patented charge-
transfer (QProx™) capacitive technology.
QTouch™ and QProx™ are trademarks of the
Quantum Research Group.
Table 1. Device summary
Feature
Operating supply voltage
Supported interface
Operating temperature
Package
Order code
QST608KT6
2.4V to 5.5V
I2C
–40° to +85° C
LQFP32 (7x7)
December 2007
Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/44
www.st.com
1
1 page  
QST608
2 Pin description
Figure 1. 32-pin package pinout
www.datasheet4u.com
Pin description
GPO4 (HS)
GPO5 (HS)
IRQ (HS)
I2C_SDA (HS)
I2C_SCL (HS)
RESET
NC
VDD_1
32 31 30 29 28 27 26 25
1 24
2 23
3 22
4 QST608KT6
5
21
20
6 19
7 18
8 17
9 10 11 12 13 14 15 16
SNS_SCK2
SNSK_SCK1
SNS_SCK1
SNSK_SCK5
SNS_SCK5
SNSKC_MCK1
SNSC_MCK1
SNSKB_MCK1
(HS) 20mA high sink capability (on N-buffer only)
Table 2. Device pin description
Pin Pin name
Type (1)
Function
1 GPO4 (2)
2 GPO5 (2)
PP (HS) General purpose output 4
PP (HS) General purpose output 5
3 IRQ
4 I2C_SDA (3)
5 I2C_SCL (3)
OD (HS) Interrupt line (active low)
TOD (HS) I2C serial data
TOD (HS) I2C serial clock
6 RESET
BD Reset (active low)
7 NC
8 VDD_1
9 VSS_1
10 VSS_2
11 VSS_3
12 VSS_4
13 VDD_2
Not connected
S Supply voltage
S Ground voltage
S Ground voltage
S Ground voltage
S Ground voltage
S Supply voltage
If unused
Open
Open
Open
Open
Open
10nF capacitor
to ground
5/44
5 Page 
QST608
4 Device operating mode
Device operating mode
The QST608 only supports one operating mode featuring an I2C interface. This interface
www.datasheet4u.com offers a large range of device configurations.
4.1 Main features
● 5 general-purpose outputs
● Configuration of up to 8 AKS groups
● Large range of low power modes
● Accessible internal capacitive sensing parameters
● Continuous range of Max On-Duration
11/44
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| Páginas | Total 44 Páginas | |
| PDF Descargar | [ Datasheet QST608.PDF ] | |
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