BY25Q16ESSIG(R)

This device is a 16Mb serial Flash memory built on an advanced CMOS floating-gate process technology. It supports Standard SPI, Dual SPI, Quad SPI, and QPI (Quad Peripheral Interface) operation modes, delivering high-performance read, program, and erase capabilities. Its architecture is based on uniformly distributed 4KB sectors, which can be organized into 32KB or 64KB blocks for flexible data management. The device supports Execute-in-Place (XIP) operation, allowing microcontrollers to execute code directly from Flash memory, thereby improving system performance and simplifying design. It integrates multiple data protection mechanisms, including software and hardware write protection, security registers, and block protection features. The device is designed to operate at low power consumption with high endurance and long-term data retention.

Key features

• Serial Peripheral Interface: supports Standard SPI, Dual SPI, Quad SPI, and QPI modes.
• Read: Normal Read (serial) clock rate up to 104MHz; Fast Read (serial) clock rate up to 108MHz at 30pF load; Dual I/O data transfer up to 216Mbits/s; Quad I/O data transfer up to 432Mbits/s; QPI data transfer up to 432Mbits/s; supports Execute-In-Place (XIP) operation: continuous read with 8/16/32/64-byte wrap.
• Program: serial input page program up to 256 bytes; supports program suspend and resume.
• Erase: supports Block Erase (64/32 KB), Sector Erase (4 KB), and Chip Erase; supports erase suspend and resume.
• Program/Erase Speed: typical page program time 0.16ms; typical sector erase time 20ms; typical block erase time 0.055/0.2s; typical chip erase time 4s.
• Flexible Architecture: 4KB sectors; 32/64KB blocks.
• Low Power: maximum operating current 9mA; maximum power-down current 2.5μA.
• Software/Hardware Write Protection: three 1024-byte security registers with one-time programmable lock; Serial Flash Discoverable Parameters (SFDP) register; protection enable/disable via WP pin; software write protection for all or part of memory; supports top or bottom, sector or block selection.
• Single Supply Voltage: full voltage range 2.7~3.6V.
• Temperature Range: commercial (-40°C to +85°C); industrial (-40°C to +85°C); industrial (-40°C to +105°C); industrial (-40°C to +125°C).
• Endurance/Data Retention: typical 100k program-erase cycles per sector; typical 20-year data retention.