The C8051F7xx family of high pin-count capacitive touch sense microcontroller (MCU) devices for cost-sensitive, high I/O embedded systems offer a patent-pending touch sensing feature that is robust, accurate, responsive and easy to configure. Offering up to 54 general purpose I/O pins and a 25 MIPS 8051 CPU, the C8051F7xx family of microcontrollers brings a high level of processing power and flexibility to applications such as industrial controls, security systems, residential HVAC, home appliances, keyboards, cash machines and fax/printer/scanner front panels.
With on-chip power-on reset, VDD monitor, watchdog timer and clock oscillator, the C8051F70x/71x 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 C8051F70x/71x 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 debug interface (on-chip)
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
Four general-purpose 16-bit timers
Capacitive Sense interface with 32 input channels
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
54 general purpose I/O
Applications
Instrumentation panels
Touch panels
Industrial interface
Security
Residential HVAC
Home appliances
Toys
Keyboards
Fax/printer/scanner front panels
The C8051F7xx family of high pin-count capacitive touch sense microcontroller (MCU) devices for cost-sensitive, high I/O embedded systems offer a patent-pending touch sensing feature that is robust, accurate, responsive and easy to configure. Offering up to 54 general purpose I/O pins and a 25 MIPS 8051 CPU, the C8051F7xx family of microcontrollers brings a high level of processing power and flexibility to applications such as industrial controls, security systems, residential HVAC, home appliances, keyboards, cash machines and fax/printer/scanner front panels.
With on-chip power-on reset, VDD monitor, watchdog timer and clock oscillator, the C8051F70x/71x 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 C8051F70x/71x 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 debug interface (on-chip)
- 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
- Four general-purpose 16-bit timers
- Capacitive Sense interface with 32 input channels
- 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
- 54 general purpose I/O
Applications
- Instrumentation panels
- Touch panels
- Industrial interface
- Security
- Residential HVAC
- Home appliances
- Toys
- Keyboards
- Fax/printer/scanner front panels
