5749-PJ-4AA-RI

Overview

The 5749-PJ-4AA-RI is a microprocessor module manufactured by Critical Link LLC, belonging to the MitySOM family. It integrates an ARM Cortex-A8 processor core operating at 800 MHz. The module provides 256 MB of data RAM for system operations. Designed for industrial environments, it supports a wide operating temperature range from -40°C to +85°C. The hardware is housed in a compact form factor measuring 67.60 mm x 38.10 mm (2.660" x 1.500"). Connectivity is established via a 204-pin SO-DIMM connector interface.

Feature Summary

• ARM Cortex-A8 processor core with 800 MHz clock speed
• 256 MB integrated data RAM capacity
• Industrial-grade operating temperature range (-40°C to +85°C)
• 204-pin SO-DIMM connector interface

Applications

• Industrial automation control systems
• Embedded human-machine interfaces (HMI)
• Ruggedized edge computing nodes

Procurement Notes

Verify the specific revision suffix and manufacturing date code against current Critical Link LLC documentation to ensure compatibility with existing carrier boards. Confirm that the 204-pin SO-DIMM mechanical footprint matches the target design constraints. Request updated technical datasheets to validate pinout assignments and power supply requirements before finalizing procurement orders.

Selection Notes

Select this module when a low-power ARM Cortex-A8 solution is required within a standard SO-DIMM envelope. Ensure the host carrier board supports the necessary voltage rails and signal integrity for the 204-pin interface. Verify that the 256 MB RAM allocation meets the memory demands of the intended embedded operating system and application workload.

Part Context

This component is part of the Critical Link MitySOM product line, which focuses on System-on-Module solutions based on Texas Instruments OMAP processors. The 5749 series specifically targets applications requiring reliable processing in constrained spaces. It serves as a drop-in replacement for legacy modules using similar form factors while offering updated processor performance.

Replacement Considerations

Direct pin-to-pin replacements are limited due to the proprietary nature of the MitySOM carrier board designs. Evaluate other MitySOM variants with different processor cores only if the carrier board supports multiple SoC families. Cross-reference with newer Critical Link modules only after verifying software driver availability and hardware compatibility.