PM25LQ512B-SCE

The PM25LQ512B-SCE is a 512Mb (64MB) serial NOR flash memory from Puya Semiconductor, designed for high-performance applications. It features a quad SPI (QSPI) interface with 104MHz clock speed, enabling fast read operations. Key specifications include:
- Density: 512Mb (64MB)
- Interface: SPI/QSPI (1-1-1, 1-1-4, 1-4-4 modes)
- Speed: Up to 104MHz (QSPI)
- Voltage: 2.7V–3.6V (single supply)
- Sector Architecture: Uniform 4KB sectors with 256B subsectors
- Endurance: 100,000 program/erase cycles
- Data Retention: 20 years
It supports XIP (Execute-In-Place) for direct code execution and includes security features like OTP (One-Time Programmable) areas and software/hardware protection. Ideal for IoT, automotive, industrial, and consumer electronics, it offers low power consumption and high reliability.
Puya’s proprietary Puyacore™ technology enhances performance while maintaining compatibility with industry-standard NOR flash.

Equivalent products to the PM25LQ512B-SCE (512Kb SPI NOR Flash) include:
- AT25SF041 (Microchip)
- W25X40CL (Winbond)
- MX25L4006E (Macronix)
- S25FL104K (Infineon/Cypress)
These are 4Mbit (512KB) SPI NOR Flash chips with similar voltage (2.7V–3.6V), speed, and pin compatibility. Verify datasheets for exact specs.

The PM25LQ512B-SCE is manufactured by Puya Semiconductor (Shanghai Puya Microelectronics Co., Ltd.), a Chinese company specializing in NOR Flash memory and microcontrollers.
Puya Semiconductor focuses on developing high-performance, low-power memory solutions, primarily for consumer electronics, IoT, and industrial applications. The company is known for its cost-effective alternatives to established flash memory manufacturers.
The PM25LQ512B-SCE is a 512Mb (64MB) serial NOR Flash device, offering features like high-speed read operations and low power consumption, making it suitable for embedded systems.

The PM25LQ512B-SCE is a 512Mb (64MB) serial NOR flash memory chip. It comes in a 16-pin SOP (Small Outline Package) with a 150mil width. This package type is surface-mounted, compact, and suitable for high-density PCB designs. It supports SPI (Serial Peripheral Interface) for fast data transfer.