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Product Detailed Parameters
- Description：IC MCU 8BIT 8KB FLASH 24QFN
- Series：C8051F9xx
- Mfr：Silicon Labs
- Package：Tape & Reel (TR)
- 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-QFN (4x4)
- Package / Case：24-WFQFN Exposed Pad
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Overview
The C8051F987-G-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a CIP-51 core operating at up to 25MHz. It integrates 4KB of flash memory and 512 bytes of RAM within a 24-QFN (4x4) package. The device supports a supply voltage range of 1.8V to 3.6V and includes peripherals such as SMBus, SPI, UART/USART, PWM, and a temperature sensor. It operates between -40°C and 85°C.
Feature Summary
- Integrates a high-performance CIP-51 8051-compatible core with on-chip debug capabilities.
- Includes multiple communication interfaces including SMBus, SPI, and UART/USART for system connectivity.
- Features integrated analog peripherals such as a temperature sensor and programmable counter arrays.
Applications
- Battery-powered portable devices requiring low power consumption
- Industrial control systems utilizing SMBus or SPI communication
- Consumer electronics with embedded monitoring functions
Procurement Notes
Verify the specific suffix designation, as the provided model indicates GMR while official documentation often references C-GMR variants. Confirm current manufacturing status, as related parts in this family have been marked obsolete. Ensure compatibility with existing PCB footprints for the 24-QFN package before procurement.
Selection Notes
Select this component for applications requiring an 8-bit MCU with integrated analog sensing and standard digital interfaces. Compare against other C8051F9xx members based on required flash capacity and I/O count. Verify that the 1.8V to 3.6V supply range meets system power constraints.
Part Context
This part belongs to the C8051F9xx family of mixed-signal microcontrollers designed for cost-sensitive and space-constrained applications. The series emphasizes integration by combining the CIP-51 core with essential analog and digital peripherals on a single chip.
Replacement Considerations
Related parts in the C8051F9xx series may be obsolete. Check for EFM8BB50F4G-A-QF as a potential alternative from the same manufacturer, though architectural differences exist.
