AT27C020-12TC

Memory IC Overview

The AT27C020-12TC is a 2,097,152-bit (256K x 8) one-time programmable read-only memory (OTP EPROM) manufactured by Microchip Technology. It operates on a single 5V ±10% power supply and features a maximum access time of 120 ns. The device is housed in a 32-lead Plastic Thin Small Outline Package (TSOP). It supports commercial temperature ranges from 0°C to 70°C with active current consumption of 25 mA and standby current of 100 µA.

Memory IC Feature Summary

• Utilizes Rapid™ programming algorithm for efficient byte-level programming
• Features integrated product identification code for manufacturer verification
• Provides CMOS and TTL-compatible inputs and outputs
• Includes high-reliability CMOS technology with ESD protection

Memory IC Applications

• Firmware storage in microprocessor systems
• Industrial control applications
• Commercial electronic equipment requiring non-volatile code storage

Memory IC Procurement Notes

Verify the specific ordering suffix 'TC' corresponds to the TSOP package and commercial temperature range as defined in the official datasheet. Confirm that the component is an OTP device requiring specialized programming equipment before procurement. Ensure system design accommodates the required VPP voltage levels during the programming phase.

Memory IC Selection Notes

Select this component when a 2M-bit capacity is required with a 120 ns access speed constraint. The TSOP package is suitable for surface-mount assembly processes. Consider the commercial temperature range limitations if the operating environment exceeds 70°C. Verify compatibility with existing programming hardware regarding the Rapid™ algorithm requirements.

Memory IC Part Context

This part belongs to the AT27C020 series of 2-megabit OTP EPROMs. The series offers various access times and package options including PLCC, PDIP, and TSOP. The AT27C020-12TC specifically denotes the 120 ns speed grade packaged in the thin small outline format, designed for commercial temperature operation within the broader family of low-power CMOS EPROMs.

Memory IC Replacement Considerations

Compatible substitutes include other AT27C020 variants with different access speeds or packages, such as AT27C020-55TC or AT27C020-12PC, provided pinout and electrical characteristics remain compatible.