Model No: MX66UW1G45GXDI00

Macronix MX66UW1G45GXDI00

Manufacturer: Macronix
SEMICON NO.: MX66UW1G45GXDI00
Package: 24-TFBGA
Stock: In stock
Description: Serial NOR Flash Memory IC 1Gbit SPI - Octal I/O 200mhz
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 Mfr       Macronix 
 Product Family OctaFlash    
 Device Type  Serial NOR Flash Memory  
 Technology  FLASH - NOR (SLC)    
 Memory Size / Density 1 Gbit (128 MByte)    
 Memory Organization 128M x 8 
 Interface Type SPI - Octal I/O    
 Max Clock Frequency  200 MHz    
 Max Data Transfer Rate (DTR)   400 MB/s    
 Supply Voltage (VCC)   1.65 V to 2 V    
 Operating Temperature -40°C to +85°C
 Package 24-TFBGA
 Mounting Type
 Surface Mount
 Compliance    
 RoHS Compliant
MX66UW1G45GXDI00‌ SPI NOR Flash memory IC Serial flash chip
The ‌MX66UW1G45GXDI00‌ is a high-performance, 1G-bit (128M-byte) SPI NOR Flash memory chip from Macronix. It utilizes a 4KB uniform sector architecture and supports the high-speed Quad Peripheral Interface (QPI) and Dual/Quad I/O modes for fast data transfer. The device operates on a single 1.8V power supply and features a wide operating temperature range, making it suitable for code storage and execution in a variety of demanding applications. Its primary applications include automotive infotainment and telematics systems, industrial controllers, networking equipment (routers, switches), IoT devices, and consumer electronics where fast boot times and robust data integrity are critical.
Key features include:‌ a fast clock frequency of up to 133 MHz in Quad I/O mode, enabling rapid read operations for execute-in-place (XIP) functionality; advanced security features such as a One-Time Programmable (OTP) area and block protection with individual lock-down capability; and low power consumption in both active and deep power-down modes. The memory is organized in a uniform 4KB sector and 64KB block structure, providing flexible erase and programming capabilities. It also supports a Continuous Read Mode that bypasses the 8-cycle address input, further improving read performance.
Alternative SPI Flash memory Models
● W25Q128JV by Winbond:‌ A popular 128M-bit SPI NOR Flash with Quad SPI support, operating at 3.3V/1.8V and offering high reliability for a wide range of embedded systems.
● S25FL128S by Infineon/Cypress:‌ A 128M-bit Flash memory featuring a high-performance SPI interface with multi-I/O support and enhanced data protection features for automotive and industrial use.
● GD25Q127C by GigaDevice:‌ A 128M-bit SPI NOR Flash memory supporting Standard/Dual/Quad SPI modes and offering fast read performance, commonly used in consumer and communication devices.
● AT25SF128A by Adesto:‌ A 128M-bit Serial Flash memory with a flexible architecture and low power consumption, suitable for portable and battery-powered applications.