Kbc1126nu - Datasheet Hot

SMSC KBC1126-NU

The is a 128-pin TQFP/LQFP Keyboard Controller (KBC) and Embedded Controller (EC) commonly found in HP laptops from the Ivy Bridge era (e.g., EliteBook 8570w, ProBook 4530s ). Core Specifications Manufacturer : SMSC (acquired by Microchip Technology ). Package : 128-pin TQFP / LQFP. Architecture : High-performance embedded 8051-based core. Operating Temp : Extended range of TAcap T sub cap A

Package

| Feature | Specification | |---------|---------------| | | 128-pin LQFP (14x14mm) | | Core Voltage | 3.3V ±5% | | Standby Voltage (VBAT) | 2.0V - 3.3V (RTC well) | | Clock Input | 32.768 kHz (crystal) + 14.318 MHz (optional) | | Operating Temp | 0°C to +70°C (commercial) / -40°C to +85°C (industrial variant) | | Microcontroller | Embedded 8051-compatible core | | Memory | 64KB ROM, 256B internal RAM, external address space | | LPC Interface | LPC 1.1 compliant (Low Pin Count bus) | | Interrupts | IRQ1, IRQ12, IRQ3, IRQ4, IRQ7, IRQ5, etc. | kbc1126nu datasheet hot

Firmware:

Some versions require external SPI Flash programming, while others are "blank" and pull code from the main BIOS. SMSC KBC1126-NU The is a 128-pin TQFP/LQFP Keyboard

Keyboard Matrix:

Supports large scan matrices, typically up to 18x8 or similar configurations. Key Features Architecture : High-performance embedded 8051-based core