IS29GL256-70DLEB

Memory IC Overview

The IS29GL256-70DLEB is a 256 Mbit (32M x 8 or 16M x 16) NOR Flash memory component manufactured by ISSI. It features an asynchronous parallel interface with a maximum access time of 70 ns. The device operates within a voltage range of 2.7 V to 3.6 V and supports both 8-bit and 16-bit data bus widths. It is housed in a 56-pin TSOP package and is designed for industrial temperature applications, typically ranging from -40°C to +85°C.

Memory IC Feature Summary

• Supports simultaneous read and write operations at different addresses within the same block array
• Provides high-speed asynchronous parallel access for direct code execution
• Features sector protection mechanisms to prevent accidental erasure or programming

Memory IC Applications

• Embedded systems requiring direct code execution from flash memory
• Industrial control units needing reliable non-volatile storage
• Firmware storage for microcontroller-based hardware designs

Memory IC Procurement Notes

Verify the specific suffix 'DLEB' against the official ISSI datasheet to confirm exact pinout, temperature grade, and packaging details. Ensure compatibility with the target system's voltage levels and timing requirements before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when a parallel interface is required for high-performance code execution. Consider the 70 ns access speed and 256 Mbit capacity relative to system memory constraints. Verify that the TSOP-56 package fits the available PCB space and manufacturing capabilities.

Memory IC Part Context

This part belongs to the IS29GL series of NOR Flash memories, which are designed for applications requiring fast random access and XIP (Execute-In-Place) capabilities. The series offers various densities and speeds, with the IS29GL256 providing a balance of capacity and performance for embedded storage needs.

Memory IC Replacement Considerations

Check for cross-reference parts with identical 70 ns speed, 256 Mbit density, and TSOP-56 packaging. Ensure any substitute maintains the same 2.7V-3.6V operating voltage and parallel interface compatibility.