The Puya P25Q64LB‑CAH is a 64 Mbit (8 MB) serial NOR flash memory designed for low-power, high-performance embedded and consumer applications. It supports SPI, Dual I/O, Quad I/O, QPI, and DTR modes, delivering fast read capabilities up to 133 MHz, perfect for executing code directly from flash (XIP) and accelerating firmware updates Operating within a voltage range of 1.65 V to 2.0 V, this device eliminates the need for separate programming voltages, simplifying system design and reducing BOM costs It offers 256‑byte page program, 4 KB sector erase, 32/64 KB block erase, and full-chip erase options. Advanced features include a 3×1024‑byte OTP security register, 128‑bit unique ID, and hardware sector locking via /WP pin to bolster data protection With 100,000 program/erase cycles, deep power‑down functionality, and long data retention, the P25Q64LB‑CAH is well-suited for portable IoT devices, smart wearables, consumer electronics, and industrial modules It’s housed in compact SOP‑8 (CAH) package for easy PCB integration.