KBC1122P-AJZS

Specialized Overview

The KBC1122P-AJZS is a Mobile Keyboard Controller and System Management Controller manufactured by SMSC. It integrates a high-performance 8051 microcontroller, an LPC Bus Interface with Firmware Hub support, and Super I/O resources. The device operates on two power planes (VCC1, VCC0) for advanced power management. Key features include Direct Battery Management with an 8-channel ADC and 3-channel DAC, Consumer Infrared Communications Controller supporting RC6 framing, and three hardware-driven PS/2 ports. It utilizes a 156-pin DQFN lead-free RoHS compliant package.

Specialized Feature Summary

• Integrated 8051 Microcontroller providing system power management, watchdog timer, and keyboard scanning capabilities.
• Direct Battery Management subsystem featuring analog-to-digital conversion, digital-to-analog conversion, and hardware thermal protection.
• Consumer Infrared Communications Controller supporting NEC, RC5, and RC6 framing protocols.
• LPC/Firmware Hub Host Flash Interface enabling memory read/write operations and address redirection.

Specialized Applications

• Mobile keyboard controllers
• System management controllers
• Super I/O implementations

Specialized Procurement Notes

Verify the manufacturer designation as SMSC or its subsidiaries based on the provided datasheet revision 0.8. Confirm that the ordering suffix AJZS corresponds to the 156-pin DQFN lead-free RoHS compliant package configuration. Ensure compatibility with ACPI 1.0b/2.0 standards before integration.

Specialized Selection Notes

Select this component for applications requiring integrated keyboard control and direct battery management. Evaluate the requirement for consumer infrared communication support, specifically RC6 framing which is noted for the P variant. Consider the dual power plane architecture for low standby current requirements in mobile systems.

Specialized Part Context

The KBC1122 series serves as an integrated solution combining keyboard controller functions with system management and Super I/O resources. The KBC1122P-AJZS variant specifically includes the Consumer Infrared Communications Controller with RC6 support. It is designed for mobile platforms requiring sophisticated power management and peripheral integration within a compact footprint.

Specialized Replacement Considerations

No public confirmed substitute part numbers are available in the source material.