BY25D20ASOIG(T)

Memory IC Overview

The BY25D20AS is a 2M-bit SPI NOR Flash memory supporting Standard and Dual SPI interfaces. It operates on a single 2.7V to 3.6V supply. Key electrical parameters include a maximum active current of 20mA and a power-down current of 5µA. The device supports clock rates up to 108MHz for Fast Read and Dual Read operations. It features a flexible architecture with 4KB sectors, 32KB/64KB blocks, and 256-byte page programming capabilities.

Memory IC Feature Summary

• Supports Dual SPI operation for high-speed data transfer using bidirectional I/O pins.
• Provides comprehensive software and hardware write protection mechanisms via status register bits and the /WP pin.
• Includes a factory-set unique 64-bit identification number for system security and anti-cloning purposes.
• Features deep power-down mode to minimize standby current consumption in battery-powered applications.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Consumer electronics with limited power budgets
• Industrial control devices needing reliable data retention
• IoT modules utilizing secure device identification

Memory IC Procurement Notes

Verify the specific package variant (SOP-8, TSSOP-8, or USON-8) matches your PCB footprint requirements. Confirm temperature grade selection aligns with operational environmental conditions. Ensure voltage supply stability within the specified range during procurement validation.

Memory IC Selection Notes

Select this component when dual-data-rate read speeds are required over standard SPI. Consider the available package options for space-constrained designs. Evaluate the write protection needs against the hardware and software locking features provided by the status register configuration.

Memory IC Part Context

This part belongs to the BY25D series of SPI NOR Flash memories from BYTe Semiconductor. It shares architectural similarities with other density variants in the lineup but offers specific capacity and speed characteristics tailored for general-purpose storage applications requiring moderate performance and low power consumption.

Memory IC Replacement Considerations

Check datasheets for compatible 2M-bit SPI NOR Flash parts from other manufacturers. Verify pin compatibility and instruction set adherence before substitution. Ensure voltage ranges and package dimensions match the existing design constraints.