BY25D10ASTIG(T)

Memory IC Overview

The BY25D10ASTIG(T) is a 1M-bit (128KB) SPI NOR Flash memory manufactured by BYTe Semiconductor. It supports Dual SPI interface with data transfer speeds up to 108 Mbits/s. The device operates on a single supply voltage ranging from 2.7V to 3.6V and features an industrial temperature range of -40°C to +85°C. Key electrical parameters include a maximum active current of 20mA and a power-down current of 5µA. It offers 100k program-erase cycle endurance and 20-year data retention.

Memory IC Feature Summary

• Supports Dual SPI operation for high-speed data transfer at 108 Mbits/s
• Includes hardware and software write protection mechanisms via /WP pin and status register bits
• Features flexible architecture with 4KB sectors and 32/64KB blocks for efficient erasing
• Provides a unique 64-bit factory-set ID number for system security

Memory IC Applications

• Battery-powered devices requiring low standby current
• Systems needing secure code execution via Unique ID verification
• Industrial control applications operating in wide temperature ranges

Memory IC Procurement Notes

Verify the specific package variant, as the 'T' suffix typically denotes tube packaging while other suffixes may indicate tape and reel. Confirm the temperature grade matches the application requirements, as commercial and industrial versions share the same base part number but differ in environmental ratings. Ensure the ordering information aligns with the manufacturer's latest datasheet revision to avoid discrepancies in packing quantities or pin configurations.

Memory IC Selection Notes

Select this component when Dual SPI bandwidth is required without the complexity of Quad I/O interfaces. It is suitable for designs where hardware write protection via the /WP pin is necessary to prevent accidental firmware corruption. Consider the 8-pin USON or SOP packages based on board space constraints, ensuring the selected package variant corresponds to the specific ordering suffix provided by the distributor.

Memory IC Part Context

The BY25D10AS belongs to BYTe Semiconductor's 1M-bit SPI NOR Flash family. It shares architectural similarities with other models in the series, such as the BY25Q16BS, but differs in density and interface capabilities. The 'ASTIG(T)' designation specifies the 1M-bit density, Industrial temperature grade, and Tube packaging format within the broader BY25D10AS product line.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: BY25D10ASTIG(R)

Memory IC FAQ

How does the hardware write protection function?

Hardware write protection is enabled by driving the /WP pin low. This action locks the Block Protect (BP) and Status Register Protect (SRP) bits in the Status Register, preventing any software commands from modifying the protected memory regions or the status register itself.

What is the purpose of the Read Unique ID Number instruction?

The Read Unique ID Number instruction accesses a factory-set, read-only 64-bit number unique to each device. This feature is used to prevent system cloning or copying by allowing user software to verify the authenticity of the flash memory chip.