Kb926qf Datasheet Page

The EC communicates directly with the battery's Smart Data System (SBS). If a laptop refuses to charge a battery despite a working charger, the KB926QF could be the culprit. The datasheet identifies the SMBus (System Management Bus) pins, enabling technicians to check for communication errors between the battery and the controller.

The KB926QF is essentially a cost-optimized variant with enhanced GPIO and improved power sequencing logic.

At the bottom of the datasheet, in fine print that shifts when you look away:

The KB926QF has several revisions that are often interchangeable depending on the specific motherboard schematic: A1, B1, C0, C1, D2, D3, and E0. Interchangeability: kb926qf datasheet

Utilizes LAD0-3 , LFRAME# , and LDRQ# for low pin count bus communication. Version Variations & Compatibility

While the base part number is KB926QF, you will often see suffixes denoting specific revisions: KB926QF B1, C0, D2, D3, E0:

| Pin Range (approx) | Function Group | Description | |--------------------|----------------|-------------| | 1–8 | LPC Interface | LCLK, LFRAME#, LAD[3:0], LDRQ#, SERIRQ | | 12–24 | GPIO Port 0-1 | Configurable input/output | | 30–42 | UART A & B | TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI | | 50–58 | Parallel Port | PD[0:7], STB#, AFD#, ERR#, INIT#, SLCT | | 68–76 | Keyboard/Mouse | KBCLK, KBDAT, MSCLK, MSDAT | | 80–92 | HWM (Hardware Monitor) | VIN0–VIN7, TMPIN0, FANIN0–FANIN2 | | 100–112 | Power & Ground | VCC (3.3V), VSB (standby), VSS, AVCC | | 118–128 | Clock & Reset | XTAL1, XTAL2, RESET#, PWRGD | The EC communicates directly with the battery's Smart

A standby signal that, if low (0V), triggers sleep or standby mode based on the laptop lid's position. Common Variants

The original builders used the KB926QF to stabilize quantum states across interstellar distances. Their datasheet included a warning: "Not for use in devices that observe their own output."

Since ITE (now ITE Tech. Inc.) restricts distribution, here are legitimate ways to obtain the full datasheet: The KB926QF is essentially a cost-optimized variant with

For detailed pin-by-pin assignments, engineers often refer to the KB926QF Pinout Guide provided by the manufacturer. KB926QF ENE KB926QF D3 KB926QFD3 TQFP IC Power Chip

The KB926QF belongs to a series designed for low power consumption and high customization for various laptop brands (e.g., Compal, Quanta, Lenovo). Built around an 8051 MCU core. Package: Typically found in a 128-pin TQFP or QFP package. Interfaces: LPC Interface: For communication with the system chipset. Keyboard Matrix: Integrated keyboard encoder.