Silicon Labs 8-bit 8KB 25MHz QFN Embedded Microcontroller MCU C8051F991-GMR

8-bit 8051 MCU, 8KB Flash, 25MHz, 20-Pin QFN EP, SMT Product overview: C8051F991-GMR from Silicon Labs is an Embedded Microcontroller MCU for industrial control, IoT devices, embedded automation, motor control, metering, and low-power board designs. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 8-bit, 8KB, 25MHz, QFN. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 8-bit, 8KB, 25MHz, QFN. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-C8051F991-GMR can be used for catalog matching and distributor lookup.

Manufacturer: Silicon Labs
Win Source Part Number: 722901-C8051F991-GMR
Series: C8051F9xx
Packaging: Reel - TR
Operating Temperature Range: -40°C ~ 85°C (TA)
Core Processor: CIP-51 8051
Speed: 25MHz
Package: 20-UFQFN Exposed Pad
Core Size: 8-Bit
Connectivity: SMBus (2-Wire/I2C), SPI, UART/USART
Peripherals: Brown-out Detect/Reset, Cap Sense, POR, PWM, WDT
Number of I/O: 16
Program Memory Size: 8KB (8K x 8)
Program Memory Type: FLASH
RAM Size: 512 x 8
Oscillator Type: Internal
Supply Voltage: 1.8 V ~ 3.6 V
Part Status: Obsolete(EOL)
Family Name: C8051F991
Categories: Integrated Circuits (ICs)
Manufacturer Homepage: www.silabs.com
Manufacturer Package: 20-QFN (3x3)
Alternative Parts (Cross-Reference): STM8L101F3U6BTR; STM8L101F3U3TR; STM8L101F3U3ATR;
Introduction Date: November 21, 2000
ECCN: EAR99
Country of Origin: Republic of Korea
Estimated EOL Date: End of life (Obsolete)
Popularity: Medium
Fake Threat In the Open Market: 61 pct.
Supply and Demand Status: Limited