1.8 V CapSense? Controller with SmartSense? Auto-tuning 31 Buttons, 6 Sliders, Proximity Sensors

特性 Features

■QuietZone? Controller

?Patented Capacitive Sigma Delta PLUS (CSD PLUS?) sensing algorithm for robust performance

?High Sensitivity (0.1 pF) and best-in-class SNR performance to support:

? Overlay thickness of 15 mm for glass and 5 mm plastic

? Proximity Solutions

?Superior noise immunity performance against conducted and radiated noise and ultra low radiated emissions

? Standardized user modules for overcoming noise

■Low power CapSense? block with SmartSense Auto-tuning

?Low average power consumption –

? 28 μA/sensor in run time (wake-up and scan once every 125 ms)

?SmartSense_EMC_PLUS Auto-Tuning

? Sets and maintains optimal sensor performance during run time

? Eliminates system tuningduring development and production

? Compensates for variations in manufacturing process

■Driven shield available on five GPIO pins

?Delivers best-in class water tolerant designs

?Robust proximity sensing in the presence of metal objects

?Supports longer trace lengths

?Max load of 100 pF (3 MHz)

■Powerful Harvard-architecture processor

?M8C CPU with a max speed of 24 MHz

■Operating Range: 1.71 V to 5.5 V

?Standby Mode 1.1 μA (Typ)

?Deep Sleep 0.1 μA (Typ)

■Operating Temperature range: –40oC to +85oC

■Flexible on-chip memory

?8 KB flash, 1 KB SRAM

?16 KB flash, 2 KB SRAM

?32 KB flash, 2 KB SRAM

?50,000 flash erase/write cycles

?Read while Write with EEPROM emulation

?In-system programming simplifies manufacturing process

■4 Clock Sources

?Internal main oscillator (IMO): 6/12/24 MHz

?Internal low-speed oscillator (ILO) at 32 kHz for watchdog and sleep timers

?External 32 KHz Crystal Oscillator

?External Clock Input

■Programmable pin configurations

?Up to 34 general-purpose I/Os (GPIOs)

?Dual mode GPIO (Analog and Digital)

?High sink current of 25 mA per GPIO

? Max sink current 120 mA for all I/Os combined

?Source Current

? 5 mA on ports 0 and 1

? 1 mA on ports 2,3 and 4

?Configurable internal pull-up, high-Z and open drain modes

?Selectable, regulated digital I/O on port 1

?Configurable input threshold on port 1

■Versatile Analog functions

?Internal analog bus supports connection of multiple sensors to form ganged proximity sensor

?Internal Low-Dropout voltage regulator for high power supply rejection ratio (PSRR)

■Additional system resources

?I2C Slave:

? Selectable to 50 kHz, 100 kHz, or 400 kHz

? Selectable Clock stretch or Forced Nack Mode

? I2C wake from sleep with Hardware address match

?12 MHz (Configurable) SPI master and slave

?Three 16-bit timers

?Watchdog and sleep timers

?Integrated supervisory circuit

?10-bit incremental analog-to-digital converter (ADC) with internal voltage reference

?Two general-purpose high speed, low power analog comparators

■Complete development tools

?Free development tool (PSoC Designer?)

■Sensor and Package options

?10 Sensing Inputs – 16-pin QFN, 16-pin SOIC

?16 Sensing Inputs – 24-pin QFN

?24 Sensing Inputs – 30-pin WLCSP[1]

?25 Sensing Inputs – 32-pin QFN

?31 Sensing Inputs – 48-pin QFN