AT49BV002NT-12TC

Memory IC Overview

The AT49LV002NT-12TC is a 2-megabit (256K x 8) parallel Flash memory device manufactured by Microchip Technology. It operates on a single 3.0V to 3.6V supply and features a 120ns access time. The memory architecture includes one 16K-byte boot block, two 8K-byte parameter blocks, and two main memory blocks of 96K and 128 bytes respectively. It supports byte-by-byte programming with typical times of 30µs per byte and sector erase cycles completing in 10 seconds. The component is housed in a 32-TSOP package and functions within a commercial temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Sector-based memory organization with dedicated boot block protection
• Internal program control and timer for automated erase and write operations
• Hardware data protection against inadvertent programming
• DATA polling and toggle bit mechanisms for cycle status detection

Memory IC Applications

• In-system reprogrammable storage for embedded systems
• Secure code storage utilizing the lockout-enabled boot block
• Parameter storage requiring independent sector erasure
• Low-power battery-operated devices using single-supply operation

Memory IC Procurement Notes

Verify the specific voltage variant, as the LV suffix indicates a 3.0V to 3.6V operating range distinct from the BV series. Confirm the 'N' designation corresponds to the pin configuration without the RESET function. Ensure the TSOP package width matches the design footprint requirements. Cross-reference the manufacturer datasheet for absolute maximum ratings to prevent damage during handling.

Memory IC Selection Notes

Select this component when a 2Mb capacity with parallel interface is required for commercial temperature environments. The 120ns speed suits applications not demanding high-frequency bus operations. Consider the boot block lockout feature if secure code storage is necessary. Verify that the system provides the required 3.0V to 3.6V supply rail compatible with the LV specification.

Memory IC Part Context

This part belongs to the AT49BV/LV002 family of 3-volt Flash memories. It utilizes advanced nonvolatile CMOS technology to provide fast read access and low power dissipation. The device is designed for in-system reprogrammability without requiring high input voltages for programming operations.

Memory IC FAQ

Does the AT49LV002NT-12TC include a RESET pin?

No, the 'N' designation indicates the absence of the RESET pin, which is present only in the non-N variants.

How is the end of a programming cycle detected?

The device supports DATA polling, where reading the last programmed byte yields its complement until completion, and a Toggle Bit on I/O6.