AT27C080-90PU

Memory IC Overview

The AT27C080-90PU is an 8Mbit (1M x 8) one-time programmable read-only memory manufactured by Microchip Technology. It operates on a single 5V supply and features a 90ns access time with parallel interface. The device utilizes low-power CMOS technology, drawing 40mA active current and 100µA standby current. It is housed in a 32-lead PDIP package and supports an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports rapid programming algorithm for efficient production use
• Includes integrated product identification code for manufacturer verification
• Features high-reliability CMOS technology with ESD protection
• Provides CMOS- and TTL-compatible inputs and outputs

Memory IC Applications

• Firmware storage in high-performance microprocessor systems
• Industrial control system logic implementation
• Embedded application code retention

Memory IC Procurement Notes

Verify the specific ordering suffix 'PU' corresponds to the 32-lead PDIP package configuration. Confirm that the component meets the required industrial temperature range specifications (-40°C to +85°C). Ensure compatibility with standard 5V logic levels and check for lead-free packaging requirements if applicable to your assembly process.

Memory IC Selection Notes

Select this component when a large capacity OTP memory solution is required for firmware storage without the latency of mass media. The 90ns speed eliminates wait states in fast processors. Consider the PDIP package for through-hole prototyping or manufacturing needs where surface mount options are not preferred.

Memory IC Part Context

This part belongs to the AT27C080 series of 8Mbit OTP EPROMs. Originally designed by Atmel, it is now produced by Microchip Technology following their acquisition. The series offers various speed grades and package options, maintaining compatibility with standard JEDEC pinouts for easy integration into existing designs.

Memory IC Replacement Considerations

Check for other speed grades within the AT27C080 family, such as faster variants, if system timing allows. Verify package compatibility if transitioning from PLCC to PDIP or vice versa. Ensure any replacement maintains the same 5V operation and industrial temperature rating.