C8051F921-F-GM

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The C8051F921-F-GM microcontroller, produced by Silicon Laboratories, is an all-in-one integrated microcontroller with a wide range of applications. This microcontroller combines 8-bit or 12-bit analog-to-digital conversion, 50 MHz CPU/ADC, on-chip LCD, Flash program memory, and numerous I/O features all on one single die.

The C8051F921-F-GM is ideally suited for low cost applications requiring a reliable embedded controller with analog to digital features. Its features make it well suited for consumer, industrial, and medical applications in areas such as industrial process control, medical diagnostics and consumer electronics.

The C8051F921-F-GM is an 8-bit microcontroller with a low power consumption. It utilizes a 50 MHz CPU/ADC, allowing it to process analog-to-digital conversion quickly and accurately. In addition to its 50 MHz CPU/ADC, the C8051F921-F-GM also includes an on-chip LCD, Flash program memory, and several input/output features.

The C8051F921-F-GM contains an 8051 core, 8kB Flash program memory, 256 bytes RAM, and many I/O features. Its 8051 core offers high performance, with a maximum instruction cycle of 24 clocks per 8-bit instruction and a maximum executed instruction rate of 6.25 MIPS. Furthermore, to reduce the external component count, the C8051F921-F-GM contains integrated timers and interrupt controller.

The C8051F921-F-GM also offers an on-chip LCD controller that has 1/3 bias. This controller has a 143x20, 3.5-inch LCD interface with support for up to 16 multiplexed LCD panels. The configuration and control of the LCD is set up through the LCD control registers (LCDCR), the LCD data registers (LCDDR) the LCD memory (LMD), and the LCD timing registers.

The C8051F921-F-GM also features a standard 8-bit and 12-bit analog-to-digital converter (ADC). It is capable of sampling up to 18 channels at up to 50Msps. This ADC also features selectable input ranges, internal reference voltages, and an external voltage reference input.

The C8051F921-F-GM features an on-chip 12-bit processor, Flash program memory, and 256KB RAM. There are also four channels of enhanced UART that offer SPI, SPI Master/Slave, LIN1.2, and I2C support. Additionally, the 128K-word on-chip Flash program memory allows the C8051F921-F-GM to execute user-defined code.

The C8051F921-F-GM offers a wide range of robust I/O features. The C8051F921-F-GM has 32 GPIO pins, 14 16-bit counters/timers, 4 UARTs (with selectable baud rate), three 16-bit Pulse Width Modulators (PWMs), 2 channels for quadrature decoder/position counter, 2 16-bit SPI interfaces, and 2 10-bit analog-to-digital converters (ADCs). The PBBR register allows GPIO pins to be used as address busses for easier port expansion.

The C8051F921-F-GM also offers excellent power management features. Its power levels can be adjusted through the on-chip regulators with selectable supply voltage from 1.8V and 3.3V. It also features a power down mode, an active sleep mode, and an ultra-low power consumption mode to reduce power consumption while in use.

In summary, the C8051F921-F-GM is an all-in-one integrated microcontroller, coupling 8-bit or 12-bit analog-to-digital conversion, 50 MHz CPU/ADC, on-chip LCD, Flash program memory, and numerous I/O features all in one single die. This microcontroller is ideally suited for low-cost applications that require a reliable embedded controller with analog-to-digital capabilities. As such, it is widely used in consumer, industrial, and medical applications in the fields of industrial process control, medical diagnostics, and consumer electronics.

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