AT49LV1024-90VC

Memory IC Overview

The AT49LV1024-90VC is a 3-volt-only in-system reprogrammable Flash memory with a capacity of 1 megabit, organized as 65,536 words by 16 bits. It features a fast read access time of 90 ns and operates within a commercial temperature range of 0°C to 70°C. The device utilizes a 40-lead VSOP package (10 mm x 14 mm) and supports word-by-word programming with a typical time of 20 µs per word. Power consumption includes an active current of 25 mA and a standby current of 40 µA.

Memory IC Feature Summary

• Features an 8K word boot block with optional hardware write lockout for secure code protection
• Supports internal program control and timer for automated erase and programming cycles
• Includes data polling and toggle bit mechanisms for end-of-cycle detection
• Provides hardware data protection against inadvertent writes via VCC sense and noise filters

Memory IC Applications

• Embedded systems requiring in-system reprogrammability
• Applications needing secure boot code storage
• Industrial or commercial electronic devices operating at 3 volts

Memory IC Procurement Notes

Verify the specific suffix VC confirms the 40-lead VSOP package and commercial temperature rating. Confirm the manufacturer source, noting Atmel was acquired by Microchip Technology. Ensure the component meets RoHS standards if required by your design specifications.

Memory IC Selection Notes

Select this model for designs requiring a 16-bit parallel interface and 90 ns access speed. Compare against the -55VC and -70VC variants if faster performance is needed. Consider the AT49LV1025 if a PLCC package is preferred over the VSOP form factor.

Memory IC Part Context

This component belongs to the AT49LV1024/1025 family of 3-volt Flash memories. The AT49LV1024 variant specifically uses the VSOP package, while the AT49LV1025 uses a PLCC package. Both share identical electrical characteristics and functionality, differing only in physical housing.

Memory IC Replacement Considerations

The AT49LV1024-55VC and AT49LV1024-70VC are direct functional substitutes with faster access times. The AT49LV1025 series offers equivalent performance in a different package type.