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Product Detailed Parameters
- Description：IC MCU 8BIT 8KB FLASH 24QSOP
- Series：C8051F9xx
- Mfr：Silicon Labs
- Package：Tube
- Core Processor：CIP-51 8051
- Core Size：8-Bit
- Speed：25MHz
- Connectivity：SMBus (2-Wire/I2C), SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：17
- Program Memory Size：8KB (8K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：512 x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 3.6V
- Data Converters：-
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：24-QSOP
- Package / Case：24-SSOP (0.154", 3.90mm Width)
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Overview
The C8051F987-GU is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a CIP-51 core operating at up to 25MHz. It integrates 8KB of flash memory and 512 bytes of RAM within a 24-QSOP package. The device supports supply voltages between 1.8V and 3.6V and includes peripherals such as SMBus, SPI, UART/USART, PWM, and a temperature sensor.
Feature Summary
- Integrates a high-performance CIP-51 8051 core with pipelined instruction execution for efficient processing.
- Includes on-chip analog peripherals such as multiple 12-bit ADCs and a built-in temperature sensor.
- Supports standard serial communication interfaces including I2C, SPI, and USART for system connectivity.
Applications
- Industrial control systems requiring robust 8-bit processing
- Consumer electronics utilizing low-voltage operation
- Sensor interface modules leveraging integrated ADC capabilities
Procurement Notes
Verify component authenticity through authorized distributors due to obsolescence status. Confirm package integrity upon receipt, as moisture sensitivity requires proper handling. Review latest errata documents for any known silicon revisions or functional updates prior to integration into final designs.
Selection Notes
Select this component for applications needing a mature 8051 architecture with integrated analog features. Ensure design compatibility with the 24-QSOP footprint and verify that the 8KB program memory suffices for firmware requirements. Consider power consumption profiles against the 1.8V to 3.6V operating range.
Part Context
Part of the C8051F9xx family, designed for cost-sensitive embedded applications. Shares architectural similarities with C8051F986 and C8051F989 but differs in specific memory configurations and peripheral sets. Manufactured by Silicon Labs using CMOS technology.
Replacement Considerations
Consult official documentation for direct substitutes. Potential alternatives within the same family include C8051F986-GU and C8051F989-GU, though pinouts and memory sizes may vary. Verify compatibility before replacement.
