The QuickSense™ C8051F8xx family of capacitive sensing MCUs provides an easy and reliable solution for capacitive buttons, sliders, wheels and capacitive proximity sensing. The C8051F800 family builds upon the C8051F700 MCU family by adding a lower-pin count, small form factor option to the industry’s fastest capacitive touch sense solutions. The C8051F800 adds 16-, 20- and 24-pin package options to the existing 48- and 64-pin C8051F700, providing more options to fit products with the optimal pin count, size and cost. Additional resources such as a 10-bit ADC and digital PWM provide additional human interface support for accelerometers, vibratory haptic feedback, LED illumination control, temperature sensing and resistive touch screen sensing.
With on-chip power-on reset, VDD monitor, watchdog timer and clock oscillator, the C8051F8xx devices are truly stand-alone, system-on-a-chip solutions. The Flash memory can be reprogrammed even in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software has complete control of all peripherals, and may individually shut down any or all peripherals for power savings.
The C8051F8xx capacitive touch sense microcontroller (MCU) processors include Silicon Labs’ 2-Wire C2 Debug and Programming interface, which allows non-intrusive (uses no on-chip resources), full speed, in-circuit debugging using the production MCU installed in the final application. This debug logic supports inspection of memory, viewing and modification of special function registers, setting breakpoints, single stepping, and run and halt commands. All analog and digital peripherals are fully functional while debugging using C2. The two C2 interface pins can be shared with user functions, allowing in-system debugging without occupying package pins.
Each device is specified for 1.8 – 3.6 V operation over the industrial temperature range (–45 to +85 °C). An internal LDO is used to supply the processor core voltage at 1.8 V. The Port I/O and RST pins are tolerant of input signals up to 2 V above the VDD supply.
Features
High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
In-system, full-speed, non-intrusive on-chip debug interface
10-bit 500 ksps single-ended ADC
Precision calibrated 24.5 MHz internal oscillator
16 kB of on-chip Flash memory
512 bytes of on-chip RAM
Implemented SMBus/I2C, UART and SPI serial interfaces
Three general-purpose 16-bit timers
16-input capacitance to digital converter
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
Applications
Instrumentation panels
Touch panels
Kiosks
Gaming systems
Industrial interface
Security
Residential HVAC
Home appliances
Toys
Keyboards
Fax/printer/scanner front panels
The QuickSense™ C8051F8xx family of capacitive sensing MCUs provides an easy and reliable solution for capacitive buttons, sliders, wheels and capacitive proximity sensing. The C8051F800 family builds upon the C8051F700 MCU family by adding a lower-pin count, small form factor option to the industry’s fastest capacitive touch sense solutions. The C8051F800 adds 16-, 20- and 24-pin package options to the existing 48- and 64-pin C8051F700, providing more options to fit products with the optimal pin count, size and cost. Additional resources such as a 10-bit ADC and digital PWM provide additional human interface support for accelerometers, vibratory haptic feedback, LED illumination control, temperature sensing and resistive touch screen sensing.
With on-chip power-on reset, VDD monitor, watchdog timer and clock oscillator, the C8051F8xx devices are truly stand-alone, system-on-a-chip solutions. The Flash memory can be reprogrammed even in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software has complete control of all peripherals, and may individually shut down any or all peripherals for power savings.
The C8051F8xx capacitive touch sense microcontroller (MCU) processors include Silicon Labs’ 2-Wire C2 Debug and Programming interface, which allows non-intrusive (uses no on-chip resources), full speed, in-circuit debugging using the production MCU installed in the final application. This debug logic supports inspection of memory, viewing and modification of special function registers, setting breakpoints, single stepping, and run and halt commands. All analog and digital peripherals are fully functional while debugging using C2. The two C2 interface pins can be shared with user functions, allowing in-system debugging without occupying package pins.
Each device is specified for 1.8 – 3.6 V operation over the industrial temperature range (–45 to +85 °C). An internal LDO is used to supply the processor core voltage at 1.8 V. The Port I/O and RST pins are tolerant of input signals up to 2 V above the VDD supply.
Features
- High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
- In-system, full-speed, non-intrusive on-chip debug interface
- 10-bit 500 ksps single-ended ADC
- Precision calibrated 24.5 MHz internal oscillator
- 16 kB of on-chip Flash memory
- 512 bytes of on-chip RAM
- Implemented SMBus/I2C, UART and SPI serial interfaces
- Three general-purpose 16-bit timers
- 16-input capacitance to digital converter
- 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
Applications
- Instrumentation panels
- Touch panels
- Kiosks
- Gaming systems
- Industrial interface
- Security
- Residential HVAC
- Home appliances
- Toys
- Keyboards
- Fax/printer/scanner front panels
