Kb926qf Datasheet May 2026

Based on publicly available information, I've put together a feature covering the "KB926QF" datasheet. Here's what I found:

Introduction

The KB926QF is a high-performance, low-power consumption microcontroller (MCU) designed by Beken Corporation, a leading provider of wireless connectivity solutions. The KB926QF is built around an ARM Cortex-M4 core, making it suitable for a wide range of applications, including IoT devices, wearables, and industrial control systems.

Key Features

Here are some key features of the KB926QF:

  • ARM Cortex-M4 Core: The KB926QF is powered by an ARM Cortex-M4 core, which provides a balance between performance and power efficiency.
  • Clock Speed: The MCU has a maximum clock speed of up to 180 MHz, allowing for fast processing and response times.
  • Memory: The KB926QF features 1 MB of flash memory and 256 KB of SRAM, providing ample storage and runtime memory for a wide range of applications.
  • Wireless Connectivity: The MCU supports Wi-Fi (IEEE 802.11 b/g/n) and Bluetooth 5.0 connectivity, making it suitable for IoT applications that require wireless connectivity.
  • Peripherals: The KB926QF includes a range of peripherals, including:
    • USB 2.0 OTG
    • UART, SPI, I2C, and I2S interfaces
    • GPIO, ADC, and DAC channels
    • PWM and timer modules
  • Power Efficiency: The MCU is designed to be power-efficient, with a low-power consumption of < 1 μA in sleep mode.

Datasheet Highlights

Here are some key highlights from the KB926QF datasheet:

  • Operating Voltage: 2.7V to 3.6V
  • Temperature Range: -40°C to 85°C
  • Package: QFN48 (6mm x 6mm)

Target Applications

The KB926QF is suitable for a wide range of applications, including:

  • IoT Devices: Smart home devices, industrial control systems, and wearable devices
  • Wireless Connectivity: Wi-Fi and Bluetooth-enabled devices
  • Industrial Control: Industrial automation, robotics, and control systems
  • Consumer Electronics: Smart appliances, audio devices, and gaming peripherals

Conclusion

The KB926QF is a versatile and powerful MCU that offers a range of features and peripherals, making it suitable for a wide range of applications. Its low power consumption, wireless connectivity options, and high-performance ARM Cortex-M4 core make it an attractive option for developers and designers. kb926qf datasheet

Datasheet Availability

The KB926QF datasheet is available from the Beken Corporation website or through authorized distributors. If you're interested in learning more about the KB926QF or would like to request a sample, I recommend visiting the Beken Corporation website or contacting an authorized distributor.

The ENE KB926QF is a highly integrated Embedded Controller (EC) specifically designed for notebook and laptop platforms. It acts as the "Keyboard Controller" (KBC) and manages critical low-level system functions. Key Technical Functions

According to the KB926QF Implementation Overview and technical notes from Yashan, this chip handles the following:

Power Sequencing: It is responsible for the system's trigger mechanism before the power button is even pressed. It must receive stable power (often referred to as EC_AVCC) and a 32.768 kHz clock to initialize the system. Integrated Peripherals:

8051 MCU Core: The internal processing unit for control logic.

LPC Interface: Connects to the chipset (PCH/Southbridge) for communication.

Keyboard Matrix Encoder: Directly manages the laptop’s physical keyboard. Interfaces: Includes PS/2, SMBus, SPI, and GPIO pins.

Hardware Monitoring: Fan control via PWM and thermal management through A/D converters. Physical & Product Variations

Package Type: Typically found in a 128-pin QFP (Quad Flat Package) format. Based on publicly available information, I've put together

Common Revisions: You may encounter different versions such as KB926QF-A1, B1, C0, C1, D2, D3, and E0. These are often listed as "IO Chipsets" or "Multicontrollers" on electronics supply sites like Jotrin Electronics and Atom Bilgisayar. Common Implementation Details

Reset Logic: The Power-On Reset (POR#) occurs after the clock is stable, ensuring the chip starts in a known state.

Voltage Support: It requires specific analog and digital power sections to be active for proper system triggering.

Where to find the full datasheet:Official full datasheets for ENE chips are often restricted to registered OEMs. However, partial documentation, pinouts, and implementation guides can be found on sites like The Datasheet Archive and Scribd. ENE KB926QF D3 Search Results - The Datasheet Archive

is a widely used Embedded Controller (EC) chip, primarily found in laptop motherboards (such as those from HP and Acer) for managing low-level hardware tasks like power sequencing, keyboard scanning, and thermal monitoring. Technical Overview

Based on its typical implementation and datasheet specifications, here is a review of the KB926QF from an engineering and repair perspective: Reliability & Protection : One of its strongest suits is the integrated thermal and overcurrent protection

. These built-in safety features are critical for preventing permanent damage during power surges or component failures on the motherboard. Voltage Regulation

: The chip functions efficiently as a Low Dropout (LDO) regulator for low-power electronics. It is noted for its high output voltage accuracy (typically ±1% tolerance

), which is vital for maintaining the stability of sensitive analog and digital circuits. Power Efficiency

: It is specifically tailored for modern low-power electronics. Its low dropout voltage allows it to operate with a minimal gap between input and output, which helps extend battery life in portable devices like laptops. Ease of Integration ARM Cortex-M4 Core : The KB926QF is powered

: For engineers, the KB926QF offers excellent line and load regulation, meaning it maintains a steady output even when the input voltage fluctuates or the current demand changes. Repair Community Perspective

In the laptop repair community, the KB926QF is known for being a "workhorse" chip. Because it manages the

sequence, it is often the first suspect when a laptop fails to trigger after pressing the power button. Availability

: It is widely available through electronic component distributors like Complexity

: Unlike newer programmable ECs, the KB926QF usually reads its instruction set from an external SPI Flash ROM, making it easier to troubleshoot since you often only need to check the external BIOS/Firmware chip rather than programming the EC itself. The KB926QF remains a reliable and precise

choice for voltage regulation and hardware management in space-constrained designs. While it is an older generation chip, its stability makes it a staple in the secondary market for motherboard repairs. programming instructions for this chip? IC KB926QF - Quality Electronic Components in Stock

In summary, the KB926QF stands out as a reliable, accurate, and efficient LDO regulator tailored for modern low-power electronics. Alibaba.com IC KB926QF - Quality Electronic Components in Stock

In summary, the KB926QF stands out as a reliable, accurate, and efficient LDO regulator tailored for modern low-power electronics. Alibaba.com

LPC Bus Interface (Pins 1-10)

  • LCLK: 33 MHz clock from chipset.
  • LFRAME#: Delimits start of LPC cycle.
  • LAD[0:3]: Multiplexed address/data lines.
  • LRESET#: Reset from platform.
  • SERIRQ: Serial interrupt request.

3. Fan Control Registers

  • Addresses: Typically 0x00 to 0x0F for fan speed (PWM duty cycle) and temperature readings.
  • Example: Write 0x80 to fan control register = 50% speed.

Common Applications of KB926QF

The KB926QF was designed for embedded and industrial applications where legacy I/O remains relevant. Common use cases include:

1. Multi-Function Pin Mapping (GPIO Muxing)

  • Why useful: The same physical pin can act as GPIO, PS/2, fan tachometer, ADC, or PWM.
  • Look for: Tables showing Pin # → Function 0/1/2/3 (e.g., pin 87 = GPIO42 or FAN_TACH2).

3. Interface Signals

The datasheet outlines several critical inputs and outputs:

  • KBC (Keyboard Scan Lines): These pins connect directly to the keyboard matrix.
  • LPC Interface: This connects the controller to the Southbridge. If these lines are stuck, the laptop may not post (Power On Self Test).
  • Reset & Clock: Vital for the chip to initialize. If the clock signal is missing, the keyboard controller will remain dormant.

Key Features (Typical for this chip family):

  • LPC (Low Pin Count) interface to the host system.
  • Legacy I/O support:
    • Serial ports (UARTs, usually 2–4)
    • Parallel port (SPP/EPP/ECP)
    • Floppy disk controller
    • PS/2 keyboard & mouse controller
  • Hardware monitoring:
    • Temperature sensors (supports external thermal diodes)
    • Voltage monitoring (multiple power rails)
    • Fan tachometer inputs and PWM fan control
  • GPIO pins (General Purpose I/O for board-level functions)
  • Watchdog timer & power management logic
  • CIR (Consumer Infrared) receiver/transmitter support
  • Package: Typically 128-pin QFP (QF = Quad Flat Pack)

⚠️ Note: The exact feature set depends on the specific suffix and firmware configuration. KB926QF datasheets often exceed 200+ pages, containing register maps, timing diagrams, and programming info.

8. SMBus/I2C Slave Addresses

  • Default addresses: Often 0x16 or 0x2E for host communication. Needed for tools like rw-everything.