C8051F80x/1x/2x/3x Capacitive Touch Sense MCUs

The C8051F8xx family of capacitive sensing microcontrollers (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 a 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.

Capacitive touch channels
16
Core Frequency
25 MHz

C8051F80x/1x/2x/3x Common Specs

  • High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
  • In-system, full-speed, non-intrusive 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

Status

Find the Right C8051F80x/1x/2x/3x Device Select Columns
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Part Number MCU Core MHz Flash (kB) RAM (kB) Dig I/O Pins 5 Volt Tolerant ADC 1 USB Temp Sensor Timers (16-bit) PCA Channels ADC 2 DAC Comparators UART SPI I2C HS I2C Slave I2S EMIF CAN LIN AES AEC-Q100 Vdd (min) Vdd (max) Package Type Package Size (mm) Internal Osc. VREF Debug Interface Other
8051 25 16 0.5 17 10-bit, 16-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.5 17 10-bit, 16-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.5 17 10-bit, 16-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.5 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 16 0.5 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 16 0.5 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 16 0.5 17 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.5 17 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.5 17 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.5 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 16 0.5 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 16 0.5 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.5 17 10-bit, 16-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.5 17 10-bit, 16-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.5 17 10-bit, 16-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.5 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.5 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.5 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.5 17 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.5 17 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.5 17 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.5 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.5 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.5 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.25 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.25 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.25 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.25 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.25 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 8 0.25 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 4 0.25 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 4 0.25 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 4 0.25 13 10-bit, 12-ch., 500 ksps 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 4 0.25 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 4 0.25 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2
8051 25 4 0.25 13 3 3 1 1 1 1 0 0 0 0 0 1.8 3.6 SOIC16 9.9x3.9 ±2 C2

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