MX25U1633FZUJ

Memory IC Overview

The MX25U1633FZUJ is a 16M-bit CMOS MXSMIO® Serial NOR Flash memory in the J Grade variant, supporting an operating temperature range of -40°C to 105°C. It operates on a single power supply voltage of 1.65V to 2.0V for read, erase, and program operations. The device features a 16,777,216 x 1 bit structure, or equivalent configurations for dual and quad I/O modes. It supports SPI Mode 0 and Mode 3 with fast read capabilities up to 80MHz in single I/O mode and 75MHz in four I/O mode. Memory organization includes equal sectors of 4K bytes and blocks of 32K or 64K bytes.

Memory IC Feature Summary

• Supports Single, Dual, and Quad I/O modes for flexible data transfer rates
• Includes advanced security features such as block lock protection and 8K-bit secured OTP
• Features a HOLD pin to pause serial communications without deselecting the device
• Provides hardware write protection via the WP# pin

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control applications within extended temperature ranges
• Consumer electronics utilizing execute-in-place (XIP) functionality

Memory IC Procurement Notes

Verify the specific suffix 'ZUJ' against the manufacturer's ordering information to confirm the package type and tape/reel specifications. Ensure that the system design accommodates the 1.65V to 2.0V supply voltage requirements. Confirm that the J Grade temperature rating aligns with the operational environment constraints of the final application.

Memory IC Selection Notes

Select this component when an extended industrial temperature range (-40°C to 105°C) is required alongside low-voltage operation. The J Grade designation specifically indicates compliance with these thermal conditions compared to standard commercial grades. Consider the available multi-I/O interfaces if higher throughput is necessary for the target system architecture.

Memory IC Part Context

This part belongs to the Macronix MX25U1633F series of Serial NOR Flash memories. The MXSMIO® technology enables high-speed sequential reads across the entire chip. The J Grade variant is distinguished by its wider operating temperature range, making it suitable for environments where standard commercial grade parts may not function reliably.

Memory IC Replacement Considerations

Direct replacements must match the 16M-bit capacity, 1.65V-2.0V voltage range, and J Grade temperature specification. Verify pin compatibility and command set adherence to ensure seamless integration without firmware modifications.