75126D

Overview

The Rochester Electronics 75126D is a high-speed CMOS E²PROM memory device offering 8 megabits of storage capacity. It utilizes a parallel interface architecture with an 8-bit data width and supports 32 address lines to access the internal memory array. The component operates within a standard single-supply voltage range, typically centered around 5V, ensuring compatibility with conventional digital logic systems. Designed for robust performance, it features fast read cycle times suitable for demanding embedded applications. The device is housed in a 40-pin Plastic Dual In-Line Package (PDIP), facilitating through-hole mounting on printed circuit boards while maintaining industrial-grade reliability standards.

Feature Summary

• Non-volatile storage capability retains data without power supply
• High-speed parallel interface for efficient data transfer
• Integrated erase and write cycles controlled by dedicated command sequences

Applications

• Industrial control system configuration storage
• Embedded firmware retention in microcontroller-based designs
• Data logging for automated machinery parameters

Procurement Notes

Verify the specific suffix designation against the manufacturer's official documentation to confirm pinout compatibility and voltage specifications. Ensure the component meets the required environmental operating conditions for the target application. Cross-reference the date code and lot number with quality assurance records to validate authenticity and handling history prior to integration into production assemblies.

Selection Notes

Select this component when non-volatile storage with parallel interface speed is required for 8-megabit capacity needs. Evaluate the package constraints to ensure the 40-pin DIP footprint fits the board layout. Confirm that the system voltage aligns with the device's operational limits and that the control logic supports the necessary erase and write command protocols for reliable data management.

Part Context

Rochester Electronics specializes in providing lifecycle solutions for obsolete and hard-to-find semiconductors. This part represents their sourcing and qualification of legacy memory components, ensuring availability for long-term manufacturing support. The company focuses on maintaining the functional integrity of original specifications while providing traceability and testing services for critical electronic supply chains.

Replacement Considerations

Direct replacements must match the 8Mbit density, 8-bit parallel interface, and 40-pin DIP package. Verify electrical characteristics such as access time and supply voltage tolerance. Check for any pinout differences or command set variations that may require schematic modifications during the transition process.