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The C8051F121-GQ is a high-speed 8-bit microcontroller based on the 8051 core from Silicon Labs. It operates at up to 100MHz and provides 128KB of in-system programmable flash memory, along with 8.25KB of internal data RAM. The device is offered in a 64-lead TQFP package (10x10mm) with 32 I/O lines.
This MCU integrates a comprehensive set of analog and digital peripherals. It features an 8-bit ADC with 8 external inputs and a 12-bit ADC with 8 external inputs, as well as two 12-bit DACs. On-chip peripherals include a brown-out detector, power-on reset, pulse-width modulation (PWM), a temperature sensor, and a watchdog timer.
For connectivity, the C8051F121-GQ supports SMBus (I2C-compatible), SPI, and two UART/USART interfaces, along with an external memory interface (EBI/EMI). The built-in internal oscillator eliminates the need for an external clock. It operates from a 3.0V to 3.6V supply and is specified for the industrial temperature range of -40°C to +85°C.
The combination of large flash memory, mixed-signal integration, and multiple serial interfaces makes this microcontroller suitable for embedded control and data acquisition applications. The surface-mount 64-TQFP package supports streamlined PCB assembly for space-constrained designs.
The supply voltage range is 3V to 3.6V.
The device comes in a 64-TQFP (10x10mm) surface-mount package.
It operates from -40°C to +85°C.
The database lists it as RoHS3 Compliant, but this status has not been independently verified.
It uses an 8051 8-bit core, with a maximum speed of 100MHz.
It has 128KB of program flash and 8.25KB of data RAM.
It supports EBI/EMI, SMBus (2-wire/I2C), SPI, and UART/USART.