IC 27128A-15 EPROM 128K-bit 150ns UV Erasable Memory AMD

Description

Product Overview

The IC 27128A-15 EPROM is a high‑performance, UV‑erasable programmable logic memory device manufactured by Advanced Micro Devices, commonly known as AMD. Engineered with a 128K‑bit organization (16K x 8), this NMOS technology delivers a maximum random access time of 150ns and an output enable access time of 50ns, ensuring swift data retrieval for time‑critical applications. Packaged in a durable DIP‑28 form factor, the component measures 6.46 x 2.64 x 0.51 inches and weighs only 0.71 ounces, making it easy to mount on a variety of printed circuit boards. The device is designed for industrial and scientific environments, offering reliable operation in temperatures ranging from -55°C to +125°C, and it complies with industry standards for programmable logic circuits. Its UV‑erasable feature allows the memory to be cleared and reprogrammed multiple times, extending the lifecycle of the product and reducing total cost of ownership for system integrators. The EPROM’s robust construction, combined with its fast access times, makes it an excellent choice for applications such as automotive control units, industrial automation controllers, telecommunications equipment, and legacy systems that require non‑volatile storage with the ability to update firmware in the field.

Usage

Designed for a broad spectrum of industrial and scientific uses, the IC 27128A-15 EPROM excels in environments where reliability and reprogrammability are paramount. Engineers often integrate this memory into programmable logic controllers (PLCs), microcontroller subsystems, and custom ASIC designs that demand precise timing and stable data retention. Its 150ns access speed supports high‑frequency data logging, real‑time control loops, and fast boot sequences in embedded systems. The UV‑erasable capability is particularly valuable in development and testing phases, allowing engineers to quickly erase and rewrite firmware without the need for specialized equipment. Additionally, the DIP‑28 package simplifies hand‑soldering and automated assembly processes, making it suitable for both prototype builds and mass‑production runs. The component’s tolerance to harsh environmental conditions, including wide temperature ranges and exposure to electromagnetic interference, ensures consistent performance in automotive, aerospace, and heavy‑industry applications where durability is essential.

Why Choose Us

When selecting a programmable memory solution, reliability, performance, and support are critical factors. AMD’s reputation for delivering high‑quality semiconductor products is reflected in the IC 27128A-15 EPROM, which undergoes rigorous testing to meet strict industrial standards. Our commitment to quality assurance includes comprehensive burn‑in testing, functional verification, and adherence to ISO‑9001 manufacturing processes, guaranteeing that each unit performs as specified from the first use. In addition to the superior technical specifications, we provide extensive documentation, reference designs, and application notes to accelerate development cycles for our customers. Our dedicated technical support team is available to assist with design integration, troubleshooting, and firmware optimization, ensuring that you receive the expertise needed to maximize the value of the component. Moreover, the competitive pricing of $8.95 per unit, combined with the ability to reuse the EPROM through UV erasure, delivers cost efficiency for both low‑volume prototypes and high‑volume production. Choosing AMD means partnering with a trusted industry leader that prioritizes innovation, reliability, and customer success.

Key Features

• Fast 150ns random access time for quick data retrieval in demanding applications
• UV‑erasable NMOS technology enables multiple reprogramming cycles, extending product lifespan
• Compact DIP‑28 package simplifies board layout and supports both manual and automated assembly
• Wide operating temperature range ensures reliable performance in harsh industrial environments
• Comprehensive technical support and documentation to accelerate development and reduce time‑to‑market

FAQ

What is the maximum number of erase cycles for the IC 27128A-15 EPROM?

The device is designed to tolerate thousands of UV erase cycles, making it suitable for repeated firmware updates during development and field maintenance.

Can the EPROM be programmed using standard in‑system programming (ISP) tools?

Yes, the IC 27128A-15 can be programmed with conventional EPROM programmers that support NMOS technology, and the programming voltage and timing specifications are detailed in the datasheet.

Is the DIP‑28 package compatible with surface‑mount technology (SMT) assembly?

While the DIP‑28 is primarily a through‑hole package, it can be used in mixed‑technology assemblies where both through‑hole and surface‑mount components coexist on the same board.

What are the recommended storage conditions for the unprogrammed EPROM?

Unprogrammed devices should be stored in a dry, temperature‑controlled environment, ideally between 0°C and 40°C, to preserve the integrity of the UV‑erasable layer.

How does the 50ns output enable access time benefit system design?

The short output enable access time reduces latency when the memory output is enabled, allowing faster response in control loops and improving overall system efficiency.