BY25D80ASTJG(T)

Memory IC Overview

The BY25D80ASTJG(T) is an 8M-bit SPI NOR Flash memory by BYTe Semiconductor, housed in an 8-pin TSSOP package. It supports Standard and Dual SPI interfaces with clock rates up to 108 MHz for Fast and Dual reads. Operating on a single 2.7V to 3.6V supply, it features flexible architecture with 4KB sectors and 32/64KB blocks. Key electrical parameters include a typical page program time of 0.7ms, sector erase time of 100ms, and block erase times of 0.3s or 0.5s. The device offers industrial temperature range options (-40°C to +85°C or +105°C), 100k cycle endurance, and 20-year data retention.

Memory IC Feature Summary

• Supports Dual SPI operation for high-speed data transfer at 108 Mbits/s using bidirectional I/O pins.
• Provides hardware and software write protection mechanisms, including status register locking and block protection bits.
• Includes a factory-set unique 64-bit ID number accessible via specific instructions to assist in system security and anti-cloning.
• Features deep power-down mode to minimize standby current consumption for battery-powered applications.

Memory IC Applications

• Industrial control systems requiring robust data retention and wide temperature tolerance
• Battery-operated devices utilizing deep power-down modes for energy efficiency
• Embedded firmware storage in microcontroller-based designs

Memory IC Procurement Notes

Verify the suffix 'TJG' corresponds to the 8-pin TSSOP package and the specific industrial temperature grade required for your application. Confirm that the ordering suffix matches the exact pin configuration and thermal specifications listed in the manufacturer's official orderable part list. Ensure compatibility with standard SPI controllers supporting dual output commands.

Memory IC Selection Notes

Select this component when dual SPI interface speed is required within a small TSSOP footprint. It is suitable for designs needing flexible block protection and unique device identification. Consider the 108 MHz read capability for high-throughput applications. Verify that the 2.7V-3.6V supply range aligns with the system voltage rails and that the 8-pin package fits the PCB layout constraints.

Memory IC Part Context

This part belongs to the BY25D80AS family of 8M-bit SPI NOR Flash memories. The family supports various packages including SOP, TSSOP, and USON. The BY25D80AS series is designed for general-purpose non-volatile storage with a focus on low power consumption and reliable data retention in commercial and industrial environments.

Memory IC Replacement Considerations

Check for parameter-equivalent parts from BYTe Semiconductor with matching density and interface. Verify package compatibility if substituting with SOP or USON variants. Ensure the replacement supports Dual SPI and similar erase/program timings.

Memory IC FAQ

How does the Dual SPI mode improve performance?

Dual SPI mode allows data to be transferred at twice the rate of standard SPI by using both IO0 and IO1 pins simultaneously, achieving speeds up to 108 Mbits/s during Dual Output Fast Read operations.

What is the function of the Unique ID Number?

The Unique ID Number is a factory-set 64-bit read-only value specific to each device. It can be accessed via the Read Unique ID instruction to help prevent system copying or cloning.