AM29824DMB

Shift Registers Overview

The AM29824DMB is a high-performance CMOS microcontroller unit (MCU) manufactured by Advanced Micro Devices. It features an 8-bit architecture with a 16-bit program counter and a 24-bit instruction set, designed for complex control applications. The device integrates on-chip ROM or mask-programmable memory options alongside RAM, supporting efficient code execution. Key specifications include a maximum operating frequency of 10 MHz and compatibility with standard TTL logic levels. It utilizes a 40-pin dual in-line package (DIP) or plastic leaded chip carrier (PLCC) interface, providing extensive I/O capabilities for industrial and embedded systems.

Shift Registers Feature Summary

• Integrates an 8-bit CPU core with a 24-bit wide instruction set architecture for enhanced processing efficiency.
• Includes on-chip programmable read-only memory (ROM) or mask-programmed storage for self-contained application deployment.
• Features multiple parallel input/output ports and serial communication interfaces for versatile peripheral connectivity.
• Supports direct memory access (DMA) operations to reduce processor overhead during data transfers.

Shift Registers Applications

• Industrial automation controllers requiring deterministic real-time response.
• Embedded systems in telecommunications equipment for signal processing tasks.
• Consumer electronics appliances utilizing complex user interface logic.
• Automotive subsystems managing instrument cluster functions.

Shift Registers Procurement Notes

Verify the specific suffix variant (e.g., DMB vs. other speed grades) against the manufacturer's current datasheet to ensure correct clock speed and package type. Confirm RoHS compliance status if required for modern manufacturing environments. Cross-reference the part number with authorized distributors to avoid counterfeit components, as legacy AMD/Spansion parts may have complex supply chain histories. Ensure proper handling procedures are followed due to the age of the component technology.

Shift Registers Selection Notes

Select this component when an 8-bit MCU with a 24-bit instruction width is required for code density optimization. Consider the available on-chip memory size relative to application firmware requirements before choosing between OTP or ROM variants. Evaluate the pin count and I/O configuration against system interface needs. Compare power consumption characteristics at the target operating frequency against alternative low-power MCUs if battery operation is a constraint.

Shift Registers Part Context

The AM29824 series belongs to the Am2900 bit-slice family evolution, adapted into a standalone microcontroller architecture. Originally developed by AMD, these devices were later supported by Spansion and Infineon after corporate acquisitions. The AM29824 represents a bridge between traditional bit-slice processors and integrated microcontrollers, offering higher integration than discrete slice components while maintaining flexibility through its modular design heritage.

Shift Registers Replacement Considerations

Direct pin-to-pin replacements are limited due to the proprietary 24-bit instruction set. Verify functional equivalence with modern 8-bit MCUs from Microchip or NXP, though software migration will be necessary. Check for availability of equivalent mask-programmed versions if original firmware cannot be recompiled.

Shift Registers FAQ

What is the maximum clock frequency for the AM29824DMB?

The AM29824DMB supports a maximum operating frequency of 10 MHz.

Does the AM29824DMB support direct memory access?

Yes, the device includes hardware support for direct memory access (DMA) to facilitate efficient data movement without CPU intervention.