AT27BV040-15TC

Memory IC Overview

The AT27BV040-15TC is a 4-Megabit (512K x 8) one-time programmable read-only memory (EPROM) manufactured by Microchip Technology. It features a 150 ns maximum access time and operates within dual voltage ranges: 2.7V to 3.6V or standard 5V ± 10%. The device is housed in a 32-Lead Plastic Thin Small Outline Package (TSOP). It supports asynchronous parallel interfaces with CMOS and TTL compatible inputs and outputs, designed for low power consumption and high reliability.

Memory IC Feature Summary

• Dual voltage range operation supporting unregulated battery power supply or standard 5V systems
• Integrated Rapid programming algorithm for efficient byte-level programming
• High reliability CMOS technology providing ESD protection and latchup immunity
• Compatible with JEDEC standard AT27C040 pinout and interface specifications

Memory IC Applications

• Portable systems utilizing regulated or unregulated battery power
• Card products pluggable into both 3-volt and 5-volt host environments
• Industrial temperature range applications requiring non-volatile storage

Memory IC Procurement Notes

Verify the specific ordering suffix 'TC' corresponds to the 32-Lead TSOP package and Industrial temperature range (-40°C to +85°C) as defined in the official datasheet. Confirm that the component is sourced from authorized distributors to ensure authenticity, as this is a legacy OTP EPROM product. Check current availability status, as older memory components may have limited stock or end-of-life implications.

Memory IC Selection Notes

Select this component when a system requires a drop-in replacement for standard 5V EPROMs but needs support for lower voltage battery operation. The AT27BV040-15TC is suitable for designs needing fast read access times without the complexity of flash memory controllers. Ensure the programming equipment supports the specific Rapid programming algorithm and required VPP voltages for reliable manufacturing.

Memory IC Part Context

This part belongs to the AT27BV040 family of high-speed, low-voltage OTP EPROMs. It is functionally compatible with the industry-standard AT27C040, allowing for easier migration from traditional 5V parts. The series is designed to simplify system design by eliminating the need for complex power supply regulation in portable devices while maintaining performance levels comparable to higher voltage counterparts.

Memory IC Replacement Considerations

The AT27BV040-15TC is directly compatible with the AT27C040 regarding pinouts and logical operations. Other variants within the AT27BV040 family, such as those with different access times or packages, may serve as alternatives if timing or form factor requirements differ.