QT60240-ISG Atmel, QT60240-ISG Datasheet - Page 9

• Manufacturer Part Number: QT60240-ISG
• Description: SENSOR IC MTRX TOUCH24KEY 32-QFN
• Manufacturer: Atmel
• Series: QMatrix™r
• Type: Capacitiver

Specifications of QT60240-ISG

• Number Of Inputs/keys: 24 Key
• Resolution (bits): 10 b
• Data Interface: I²C, Serial, SPI™
• Voltage Reference: External
• Voltage - Supply: 1.8V, 3.3V, 5V
• Current - Supply: 4.6mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-MLF®, QFN
• Output Type: *
• Interface: *
• Input Type: *
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 427-1126-2

See Table 2.2 for further connection information.
Suggested regulator manufacture rs:
lQ
recommended values for input and
output bypass capacitors; keep output
capacitor close to QT60xx0 pins 4 and 6.
If not possible, add a 100nF capacitor
next to those pins.
•
•
•
follow regulator manufacturers
Toko (XC6215 series)
Seiko (S817 series)
BCDSemi (AP2121 series)
Vunreg
SCOPE SYNC
MAINS SYNC
I2C
CHANGE
LATCH
+1.8V to +5V
SDA
SCL
VREG
10K
VDD
10K
Figure 2.7 Wiring Diagram
VDD
QT60240
QT60160
9
RS2
1M
* optional - for emission suppression
** optional - for RF susceptibility improvement
RS1
1M
*RX7
*RX3
1K
1K
RS0
1M
*RX6
*RX2
1K
1K
CS0
CS1
CS2
Note: Leave YnA, YnB unconnected
QT60240-ISG R8.06/0906
*RX1
4.7nF
4.7nF
4.7nF
if not used
*RX5
1K
1K
**RY0
**RY1
**RY2
*RX0
*RX4
1K
1K
1K
1K
1K