LM9704SL

Application Specific Microcontrollers Overview

The LM9704SL is a real-time digital image processor manufactured by Texas Instruments (originally National Semiconductor). It integrates a 16-bit RISC microprocessor, flexible image processing pipeline, and hardware JPEG compression into a single IC. Designed for SXGA or VGA digital still and video cameras, it supports array formats including CIF, VGA, and SXGA with Bayer pattern input. The device features a glueless CMOS image sensor interface, integrated USB v1.1, and ACCESS.bus serial interface. Key electrical specifications include a core supply voltage of 2.25 to 2.75 V and an IO supply of 2.7 to 3.6 V, with an average power dissipation of 95 mW.

Application Specific Microcontrollers Feature Summary

• Embedded 16-bit RISC processor system with up to 16 Mbytes external memory addressing space and 32 Kbytes internal RAM
• Hardware JPEG compression engine supporting both video and snapshot modes
• Integrated USB v1.1 controller and USART providing data rates up to 921.6 K-bits per second
• Raw and color image processing capabilities including defective pixel correction, Bayer to RGB interpolation, and programmable gamma correction

Application Specific Microcontrollers Applications

• PC Cameras
• Digital Still Cameras
• Clip-on Cameras for PDAs and Cell Phones
• Industrial Cameras

Application Specific Microcontrollers Procurement Notes

Verify the manufacturer origin, as the component was originally produced by National Semiconductor before its acquisition by Texas Instruments. Confirm the package type is the 128-pin Laminated CSP and ensure the operating temperature range meets requirements of -10°C to +85°C. Check for availability of development kits such as the LM9704DEV-KIT if software support via NCOS is required.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring high-performance image processing with low memory overhead due to its optimized memory management. Ensure the design accommodates the dual voltage supplies: 2.25–2.75 V for the core and 2.7–3.6 V for IO. Verify compatibility with supported CMOS sensors like the LM9627 or LM9648 for VGA and SXGA resolutions respectively.

Application Specific Microcontrollers Part Context

The LM9704SL is part of the LM9704 family of real-time digital image processors. It is often paired with specific National Semiconductor CMOS image sensors (e.g., LM96xx series) and development boards (LM9704CAMBOARD) to create complete camera solutions. Related products include the LM9702 and various head boards and lens kits designed for integration with this processor.

Application Specific Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The LM9704 is a specialized image processor; alternative selection requires evaluating other digital image processors with similar RISC integration and JPEG compression capabilities.