Out of stock
Integrated Analog-to-Digital Channels for thermal/voltage sensing Pulse Width Modulation channels for fan speed control Pinout Configuration and Critical Signals
The output signal sent from the KB926QF to the Southbridge or PCH (Platform Controller Hub) to initiate the system boot.
Communicates with the smart battery via the SMBus protocol to regulate charging current and display battery health.
The laptop turns on for 1-2 seconds, lights up an LED, and immediately shuts down. This points to a failed power sequence acknowledgment handshake (e.g., missing SUSB# or SUSC# inputs). Repair and Replacement Tips
The chip exists in several versions, such as , C1 , D2 , and D3 . Technicians often seek these datasheets when troubleshooting "no power" states, keyboard failures, or charging issues. Because the IC is highly customized via firmware, replacing it often requires ensuring the firmware in the shared SPI flash is compatible with the specific chip revision. KB926QF Datasheet, PDF - ALLDATASHEET.COM kb926qf datasheet
The KB926QF belongs to the ENE family of KBC (Keyboard Controller) / Super I/O controllers. It is designed to bridge the gap between low-level hardware components (keyboard, thermal sensors, fans) and the main chipset (Southbridge/PCH or SoC). ENE Technology Inc. Package Type: QFP128 (Quad Flat Package with 128 pins).
Drives status indicators (Power, Charge, Wi-Fi) and handles miscellaneous general-purpose input/output signals. 2. Technical Specifications Specification Manufacturer ENE Technology Inc. Package Type LQFP-128 (Low-profile Quad Flat Package, 128 pins) Core Architecture 8051-compatible 8-bit Microcontroller Host Interface LPC (Low Pin Count) Interface Operating Voltage (VCC) 3.3V (±10%) Frequency
While a full schematic is necessary for repair, these are crucial pin categories: VCCcap V sub cap C cap C end-sub (pins 10, 32, 60, 81, 102, 122). Ground Pins: GNDcap G cap N cap D (pins 11, 33, 61, 82, 103, 123). Reset Pin: Pin 21. LPC Bus: Pins 50-60 (approximate). Keyboard Matrix: Pins 60-100 (approximate). Common Applications and Troubleshooting
I monitor the temperature sensors. If things get too hot, I spin up the cooling fans. This points to a failed power sequence acknowledgment
The is a critical component for power management and user input. Understanding its datasheet is crucial for technicians troubleshooting laptop failures. You can often find the full KB926QF datasheet, pinout, and schematics on technical forums such as Scribd or specialized IC component sites.
Understanding the KB926QF Datasheet: An In-Depth Look at ENE’s Embedded Controller
Processing inputs from the built-in laptop keyboard matrix.
If you're new to the KB926QF or similar MCUs, consider: Because the IC is highly customized via firmware,
: Primarily functions as an i8042-compatible keyboard controller , managing the keyboard matrix and PS/2 interface for touchpads.
If you are replacing a KB926QF , , particularly the decoupling capacitors, as a shorted capacitor can make a good KBC look like a dead one. If you can identify the exact motherboard model, I can help you find a schematic diagram to locate specific pins. KB926QF-CO.pdf - IC Components
Verify that pressing the power button drops the voltage on NBSWON# to 0V and returns to 3.3V upon release. If it does not drop, check the power button board or cable. Replacement and Soldering Guidelines
Out of stock