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Product Detailed Parameters
- Description：IC MCU 8BIT 8KB FLASH 32LQFP
- Series：C8051F2xx
- Mfr：Silicon Labs
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：8051
- Core Size：8-Bit
- Speed：25MHz
- Connectivity：SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, WDT
- Number of I/O：22
- Program Memory Size：8KB (8K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：256 x 8
- Voltage - Supply (Vcc/Vdd)：2.7V ~ 3.6V
- Data Converters：A/D 22x8b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-LQFP (7x7)
- Package / Case：32-LQFP
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Overview
The C8051F221-GQR is an 8-bit microcontroller from the Silicon Labs C8051F22x series, featuring a high-speed 8051-compatible core operating at up to 25 MHz. It integrates 8 kB of in-system programmable Flash memory and 256 bytes of RAM. The device includes a 32-channel, 8-bit analog-to-digital converter (ADC) and supports multiple communication interfaces including SPI and UART. Powered by a 2.7 V to 3.6 V supply, it operates within a temperature range of -40°C to +85°C and is housed in a 32-lead LQFP package.
Feature Summary
- Integrates a high-performance 8051 core with full instruction set compatibility for efficient code execution.
- Includes on-chip Flash memory allowing for in-system programming without external programmer hardware.
- Features a multi-channel analog-to-digital converter for direct signal acquisition and processing.
- Supports standard serial communication protocols via integrated SPI and UART peripherals.
Applications
- Battery-powered sensor nodes requiring low power consumption
- Industrial control systems with analog input monitoring
- Embedded data acquisition modules
- Portable instrumentation devices
Procurement Notes
Verify component authenticity through authorized distributors or original manufacturer channels. Confirm package integrity and pin alignment upon receipt. Check manufacturing date codes against project requirements. Ensure storage conditions comply with moisture sensitivity level specifications. Validate part markings match official datasheet identifiers to avoid counterfeit risks.
Selection Notes
Select this component when an 8-bit architecture suffices for application logic. Choose based on the requirement for 8 kB program memory and 256 bytes of data RAM. Consider the 25 MHz maximum clock speed for timing constraints. Evaluate the 32-channel ADC capability for analog interface needs. Verify voltage supply compatibility with the 2.7 V to 3.6 V operational range.
Part Context
This microcontroller belongs to the C8051F22x family of fully integrated mixed-signal System-on-Chip devices. The series emphasizes cost-effective solutions for embedded applications by combining the 8051 processor with extensive peripheral sets. The GQR suffix denotes the specific surface-mount leaded quad flat package variant used for this component.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult Silicon Labs for current equivalent recommendations or updated series replacements.
