AT27C2048-15JC

Memory IC Overview

The AT27C2048-15JC is a low-power, high-performance 2-Megabit (2,097,152-bit) one-time programmable read-only memory organized as 128K words by 16 bits. It operates on a single 5V ± 10% power supply and features a fast read access time of 150 ns. The device utilizes CMOS technology with maximum standby current of 100 µA and active current of 35 mA at 5 MHz. It supports commercial temperature range operation from 0°C to 70°C and is housed in a 44-Lead Plastic J-Leaded Chip Carrier package.

Memory IC Feature Summary

• Direct upgrade path from 512K-bit and 1M-bit EPROMs
• Integrated Product Identification Code for automated programming
• High reliability CMOS technology with ESD protection
• Rapid Programming Algorithm for efficient production use

Memory IC Applications

• High-performance 16-bit microprocessor systems
• High-performance 32-bit microprocessor systems
• Firmware storage applications requiring mass media elimination

Memory IC Procurement Notes

Verify the specific suffix 'JC' corresponds to the 150 ns speed grade and Commercial temperature range within the 44-Lead PLCC package configuration. Confirm that the component is sourced as an OTP device requiring dedicated programming equipment utilizing the Rapid™ algorithm. Ensure system design accommodates VPP voltage requirements during programming operations.

Memory IC Selection Notes

Select this component when a 16-bit data bus organization is required for firmware storage in 16 or 32-bit systems. The 150 ns access time eliminates wait states for slower processors. Consider the PLCC package for surface mount compatibility. Verify that the manufacturing environment supports the necessary 13.0V programming voltage and 50 µs pulse width requirements.

Memory IC Part Context

This part belongs to the AT27C series of low-power CMOS OTP EPROMs manufactured originally by Atmel. The series provides non-volatile storage solutions with direct pin-compatible upgrades from smaller density devices like the AT27C516 and AT27C1024. The AT27C2048 specifically addresses the need for higher density code storage in embedded applications without the latency associated with mass storage media.

Memory IC Replacement Considerations

Compatible substitutes include other AT27C2048 variants with different speed grades (e.g., -55, -70, -90, -12) or packages (PDIP, VSOP). Cross-brand equivalents must match the 128K x 16 organization, 5V supply, and 44-pin PLCC footprint.