AT42QT1110-MU Atmel, AT42QT1110-MU Datasheet - Page 39

• Manufacturer Part Number: AT42QT1110-MU
• Description: IC TOUCH SENSOR 11KEY 32QFN
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of AT42QT1110-MU

• Touch Panel Interface: 10, 2-Wire
• Number Of Inputs/keys: 11 Key
• Data Interface: Serial, SPI™
• Voltage Reference: Internal
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 8mA, 12mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Output Type: Logic
• Interface: SPI
• Input Type: Logic
• Supply Voltage: 3 V to 5.5 V
• Dimensions: 5 mm L x 5 mm W x 0.9 mm H
• Output Voltage: 0.7 V to 0.8 V
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT42QT1110-MU; AT42QT1110-MUTR

8.5
8.5.1
8.5.2
8.5.3
9520I–AT42–03/10
Parameter
Address space
Maximum clock rate
Minimum low clock period
Minimum high clock period
Clock idle
Setup on
Clock out on
SPI Enable delay (SS low to SCK low)
Parameter
Time between bytes
Time between communications
Parameter
Time between bytes
Time between communications
SPI Bus Specifications
General Specifications
Full SPI Mode
Quick SPI Mode
Specification
8-bit
1.5 MHz
333 ns
333 ns
High
Leading (falling) edge
Trailing (rising) edge
1 µs
Specification
150 µs
Generally 150 µs; longer delays required to implement some commands, as follows:
Specification
50 µs
Generally 50 µs, except for the following:
• Send Setups: 150 µs after all setup bytes are returned
• Calibrate All: 150 µs
• Calibrate Key: 150 µs
• Reset: 160 ms
• Sleep: 150 µs after a low signal is applied to SS or CHANGE to wake the device
• Store to EEPROM: 200 ms
• Restore from EEPROM: 150 ms
• Erase EEPROM: 50 ms
• Recover EEPROM: 50 ms
• Store to EEPROM: 200 ms
• Switch to Full SPI: 150 µs
AT42QT1110-MU/AT42QT1110-AU
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