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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 24QSOP
- 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：4KB (4K 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 C8051F989-GUR 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-pin QSOP package. The device supports supply voltages between 1.8V and 3.6V and includes peripherals such as SMBus, SPI, UART/USART, PWM, WDT, and power-on reset.
Feature Summary
- Integrates a CIP-51 8051-compatible core with internal oscillator for system clock generation
- Includes serial communication interfaces supporting SMBus, SPI, and UART/USART protocols
- Provides hardware peripherals including pulse width modulation, watchdog timer, and power-on reset
Applications
- Low-power embedded control systems requiring 8051 compatibility
- Industrial monitoring applications utilizing serial communication buses
- Battery-operated devices supported by wide voltage range operation
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 24-QSOP specification. Check for moisture sensitivity level compliance prior to soldering. Review official errata documents for known silicon revisions. Ensure end-of-life status does not conflict with long-term production requirements.
Selection Notes
Compare program storage capacity against application code size requirements. Evaluate peripheral availability for specific interface needs like I2C or SPI. Consider thermal performance within the specified operating temperature range. Assess package dimensions for PCB layout constraints. Verify voltage supply compatibility with system power rails.
Part Context
This component belongs to the C8051F9xx family of mixed-signal microcontrollers. It shares architectural similarities with other members like the C8051F989-GM but differs in packaging. The series emphasizes high integration and low power consumption for embedded applications.
Replacement Considerations
The C8051F989-GM serves as a functional alternative with identical specifications but utilizes a QFN package instead of QSOP. Verify footprint compatibility before substitution.
