The QuickSense™ C8051F99x family of ultra low power capacitive sensing MCUs provides the lowest power and highest sensitivity touch sensing solution for capacitive buttons, sliders, wheels and capacitive proximity sensing.

Architected from the popular C8051F9xx platform, the device combines the industry-leading low power technology of the C8051F9xx family with the fast and accurate capacitive sensing features of the QuickSense C8051F7xx/8xx families to address fast-growing capacitive touch applications.

Features

• High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
• Industry’s lowest active & sleep currents
• 150 µA/MHz active mode
• 10 nA sleep mode
• 50 nA sleep mode with brown-out protection
• 300 nA sleep mode with internal oscillator
• 14 input charge timing capacitance to digital converter
• 12-bit 75 ksps single-ended ADC
• 6-bit current reference
• Precision calibrated 24.5 MHz internal oscillator
• SmaRTClock oscillator
• 8 kB of on-chip Flash memory
• 512 bytes of on-chip RAM
• Implemented SMBus/I2C, UART and SPI serial interfaces
• Four general-purpose 16-bit timers
• Programmable Counter/Timer Array (PCA)
• On-chip internal voltage reference
• On-chip watchdog timer
• On-chip power-on reset and supply monitor
• On-chip voltage comparator
• 17 general purpose I/O
• In-system, full-speed, non-intrusive debug interface (on-chip)