EPROM
EPROM (Erasable Programmable Read-Only Memory) ICs store firmware and configuration data that can be erased by UV light exposure and reprogrammed. While largely superseded by Flash memory in new designs, EPROMs remain in production for legacy system maintenance in military, aerospace, and industrial applications.
Browse EPROM Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| CY7C293A-50WC | Infineon Technologies | Package: Bulk | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 16Kbit | Operating Temperature: 0°C ~ 70°C (TA) | In Stock | |
| HN27C256AG15 | Renesas | Package: Bulk | Package / Case: 28-CDIP (0.600", 15.24mm) Window | Mounting Type: Through Hole | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 256Kbit | Operating Temperature: 0°C ~ 70°C (TA) | In Stock | |
| 27C512-15/LP | Microchip Technology | Package: Bulk | Package / Case: 32-LCC (J-Lead) | Mounting Type: Surface Mount | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 512Kbit | Operating Temperature: 0°C ~ 70°C (TA) | In Stock | |
| CY7C235A-30PC | Infineon Technologies | Package: Bulk | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 8Kbit | Operating Temperature: 0°C ~ 70°C (TA) | In Stock | |
| CY27C256A-200WMB | Infineon Technologies | Package: Bulk | Package / Case: 28-CDIP (0.600", 15.24mm) Window | Mounting Type: Through Hole | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 256Kbit | Operating Temperature: -55°C ~ 125°C (TA) | In Stock | |
| FM27C010VE120 | onsemi | Package: Bulk | Package / Case: 32-LCC (J-Lead) | Mounting Type: Surface Mount | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 1Mbit | Operating Temperature: -40°C ~ 85°C (TA) | In Stock | |
| CY7C245A-35JC | Infineon Technologies | Package: Bulk | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 16Kbit | Operating Temperature: 0°C ~ 70°C (TA) | In Stock | |
| NM27C010Q90 | onsemi | Package / Case: CDIP | Mounting Type: Through Hole | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 1Mb | Operating Temperature: 0°C ~ 70°C (TA) | In Stock | |
| CY7C263-35WM | Infineon Technologies | Package: Bulk | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 64Kbit | Operating Temperature: -55°C ~ 125°C (TA) | In Stock | |
| CY27C256-150WI | Infineon Technologies | Package: Bulk | Package / Case: 28-CDIP (0.600", 15.24mm) Window | Mounting Type: Through Hole | Supply Voltage: 4.5V ~ 5.5V | Memory Size: 256Kbit | Operating Temperature: -40°C ~ 85°C (TA) | In Stock |
How to Choose EPROM
A practical selection framework for EPROM covering specifications, packaging, lifecycle, and sourcing on Octatronics.
Define electrical and environmental requirements
Start with the required function and operating conditions for EPROM, then lock in critical parameters such as function, supply voltage, interface, package, and temperature grade. Match these against datasheet limits, not catalog summaries alone.
Validate package and land pattern compatibility
Confirm the EPROM package matches your PCB footprint, pick-and-place constraints, and moisture sensitivity handling. Verify reel/tape or tube packaging for production.
Check lifecycle, compliance, and alternates
Review lifecycle status (Active, NRND, EOL), RoHS, and approved alternate sources for EPROM before committing to high-volume builds. Use Octatronics cross-reference data when a drop-in replacement is needed.
Compare manufacturers and request pricing
Filter EPROM by manufacturers such as onsemi and Renesas, compare key specs side by side, then submit an RFQ with quantity, target delivery, and traceability requirements.
Related Selection Resources
Top EPROM Manufacturers
onsemi
onsemi EPROM products are available for part-number review, stock checks, and RFQ support.
28,226 productsRenesas
Renesas EPROM products are available for part-number review, stock checks, and RFQ support.
74,605 productsMacronix
Macronix EPROM products are available for part-number review, stock checks, and RFQ support.
927 productsNTE Electronics, Inc.
NTE Electronics, Inc. EPROM products are available for part-number review, stock checks, and RFQ support.
45 products
Infineon Technologies
Infineon Technologies EPROM products are available for part-number review, stock checks, and RFQ support.
20,310 products
NXP Semiconductors
NXP Semiconductors EPROM products are available for part-number review, stock checks, and RFQ support.
20,288 products
Microchip Technology
Microchip Technology EPROM products are available for part-number review, stock checks, and RFQ support.
67,462 products
Texas Instruments
Texas Instruments EPROM products are available for part-number review, stock checks, and RFQ support.
84,045 products
Intel
Intel EPROM products are available for part-number review, stock checks, and RFQ support.
345 products
Analog Devices
Analog Devices EPROM products are available for part-number review, stock checks, and RFQ support.
82,970 productsAbout EPROM
Frequently Asked Questions
Octatronics can help source a wide range of EPROM from major manufacturers worldwide, including active production parts, long-lead-time items, and hard-to-find components.
Yes. You can submit a single part number or upload a BOM with multiple parts. Our team will check stock, date code, lead time, and pricing for each item.
Availability depends on the specific part number and supplier source. For important orders, buyers can request packaging photos, labels, date code information, and traceability documents.
Yes. Octatronics supports sourcing for active, end-of-life, obsolete, and hard-to-find components through our global supplier network.
Please provide the part number, manufacturer, quantity, required date code, target price, delivery country, and whether original packaging or COC is required.
Articles & Technology
View All →
How to Choose Electronic Components for Reliable Hardware Design
Learn how to choose electronic components for reliable hardware design, including specifications, lifecycle status, sourcing risks, quality checks, and BOM optimization.
Pin-to-Pin Replacement Parts: How to Check Compatibility Before Sourcing
When an original electronic component becomes obsolete, unavailable, or too expensive, a pin-to-pin replacement part can help avoid PCB redesign and keep production or repair projects moving. However, pin-to-pin compatibility does not automatically mean the part is a safe drop-in replacement. This guide explains how to check package, footprint, pinout, electrical ratings, thermal performance, timing behavior, firmware requirements, compliance status, and lifecycle risk before sourcing replacement parts. It also provides a practical checklist to help engineers, buyers, and maintenance teams reduce sourcing mistakes and verify compatibility before purchase.
How to Find Pin-Compatible Alternatives for Obsolete ICs
Finding a pin-compatible alternative for an obsolete IC is not just about matching the package. It requires a structured review of pinout, footprint, electrical parameters, functional behavior, lifecycle status, sourcing reliability, and sample validation.
DDR6 RAM: What We Know So Far About Next-Generation Memory
DDR6 RAM is the next planned generation of DDR memory technology after DDR5, designed to support higher bandwidth, improved efficiency, and future computing platforms with greater data movement requirements. Although DDR6 is not yet a mainstream commercial product, major memory manufacturers and platform developers are already preparing for the next stage of DRAM evolution.