C8051F989-GU

Description：IC MCU 8BIT 4KB FLASH 24QSOP
Series：C8051F9xx
Mfr：Silicon Labs
Package：Tube
Core Processor：CIP-51 8051

SKU:15eaabd55a29 Category: Microcontrollers Brand: Silicon Labs

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 4KB 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：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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C8051F989-GU

Overview

The C8051F989-GU is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a CIP-51 8051 core. It operates at speeds up to 25MHz with an internal oscillator and includes 4KB of flash program memory alongside 512 bytes of RAM. The device supports a supply voltage range of 1.8V to 3.6V and functions within a temperature range of -40°C to 85°C. It utilizes a 24-QSOP surface-mount package and provides 17 I/O lines. Connectivity options include SMBus (I2C), SPI, and UART/USART interfaces.

Feature Summary

Integrates a high-performance CIP-51 8051 core with on-chip flash memory for code storage.
Includes analog peripherals such as a power-on reset and brown-out detection circuitry.
Features programmable digital cross-switch for flexible peripheral pin assignment.
Supports standard serial communication protocols including SPI and UART.

Applications

Battery-powered embedded systems requiring low voltage operation
Industrial control modules with serial communication needs
Portable instrumentation devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific revision level against official errata sheets, particularly regarding the C8051F99x/98x Rev A/B documentation. Ensure compatibility with existing design constraints before procurement, noting that this part number may be subject to discontinuation status.

Selection Notes

Select this component when a compact 8-bit MCU with integrated flash and basic serial interfaces is required. It suits designs needing 1.8V to 3.6V operation and QSOP packaging. Consider alternative members of the C8051F9xx family if larger memory capacity or different pin counts are necessary for the application.

Part Context

This microcontroller belongs to the C8051F9xx series, which focuses on mixed-signal capabilities in small packages. The series shares architectural similarities with other C8051F models but offers specific memory and peripheral configurations tailored for cost-sensitive applications. The C8051F989 variant specifically provides 4KB of flash, distinguishing it from higher-capacity siblings in the same lineup.