LC709006V-E

Overview

The LC709006V-E is a CMOS I/O expander IC designed to extend microcontroller capabilities. It interfaces via synchronous serial communication and provides 24-bit parallel I/O. The device supports a wide operating voltage range of 2.0V to 6.0V. Key features include bit-level I/O direction specification, configurable output types (CMOS or N-channel open drain), and port-based output voltage adjustment. Maximum output current is 12mA.

Feature Summary

• Supports 4- or 5-wire synchronous serial transmission and reception for efficient data handling.
• Provides 24-bit parallel I/O with flexible configuration options for direction and output type.
• Enables output voltage adjustment on a per-port basis to match peripheral equipment power levels.

Applications

• Microcontroller I/O port expansion in embedded systems
• Peripheral interface control requiring voltage level adaptation
• Applications needing configurable CMOS or open-drain outputs

Procurement Notes

Verify the End-of-Life status before procurement. The component was discontinued in Q4 2014 according to official notices. Confirm availability through authorized distributors or surplus channels, as standard production supply is no longer active. Ensure compatibility with existing designs due to potential obsolescence.

Selection Notes

Select this part only if legacy support or specific voltage flexibility is required. The LC709006V-E offers unique port-based voltage adjustment and configurable output types. Consider newer alternatives if long-term supply assurance is critical, as this model is discontinued. Verify package and pinout compatibility during replacement planning.

Part Context

The LC709006V-E belongs to the LC709006 series of I/O expanders from onsemi. It is an EOL product, with discontinuance announced in Q4 2014. The series includes variants like LC709006A-E. These devices are specialized for expanding MCU I/O ports with flexible electrical characteristics.

Replacement Considerations

No direct public substitute part numbers are confirmed. As the LC709006V-E is discontinued, engineers must evaluate functional equivalents from other manufacturers or redesign using modern I/O expanders with guaranteed supply chains. Verify pin compatibility and electrical specifications carefully.