Ultra Low Power Capacitive Sensing MCU - C8051F99x

C8051F99x Ultra Low Power Touch Sense MCUs

The C8051F99x family of ultra low power capacitive sensing microcontroller (MCU) devices provide 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 C8051F7xx/8xx families to address fast-growing capacitive touch applications.

C8051F990, F991, F996, F997 touch sense MCUs feature sub micro amp (<1 μA) wake on touch average current consumption, 150 µA/MHz active mode and multiple sleep modes as low as 10 nA. With up to 14 capacitive sensing inputs and a patent-pending charge timing hardware capacitance to digital converter, the C8051F99x family achieves unparalleled touch sensitivity, speed and ultra-low power in packages as small as a 3 mm x 3 mm QFN20.

C8051F99x Common Specs

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)

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C8051F99x Ultra Low Power Touch Sense MCUs

C8051F99x Common Specs

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