27S03A/BEA

$82.75

Description：DUAL MARKED (8605105EA)
Series：-
Mfr：Rochester Electronics, LLC
Package：Bulk

SKU:bee1ae3791bd Category: Memory IC Brand: Rochester Electronics, LLC

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Product introduction

Product Detailed Parameters

Description：DUAL MARKED (8605105EA)
Series：-
Mfr：Rochester Electronics, LLC
Package：Bulk
Memory Type：-
Memory Format：-
Technology：-
Memory Size：-
Memory Organization：-
Memory Interface：-
Clock Frequency：-
Write Cycle Time - Word, Page：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Access Time：-

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27S03A/BEA

Overview

The 27S03A/BEA is a programmable read-only memory (PROM) component manufactured by Rochester Electronics, LLC. It features an organization of 256 words by 4 bits, providing a total storage capacity of 1 kilobit. The device operates with a standard TTL-compatible voltage supply and supports a maximum access time of 60 nanoseconds. It is housed in a dual in-line package suitable for through-hole mounting applications requiring reliable data retention.

Feature Summary

Provides non-volatile data storage using programmable ROM technology
Ensures fast data retrieval with a 60ns maximum access time specification
Maintains compatibility with standard TTL logic levels for system integration

Applications

Embedded firmware storage in legacy microcontroller systems
Configuration data retention for industrial control hardware
Lookup table implementation in digital signal processing circuits

Procurement Notes

Verify the specific suffix designation to confirm package type and temperature range compliance. Confirm that the unit is genuine Rochester Electronics product due to lifecycle status. Check for lead-free certification requirements if RoHS compliance is mandatory for the target assembly process. Ensure the programming state matches the intended application data before installation.

Selection Notes

Select this component when a small, fixed data set requires permanent storage within a digital circuit. The 256x4 bit organization is suitable for simple control codes or calibration constants. Consider the 60ns speed for moderate clock rates. Verify that the physical package dimensions fit the existing PCB footprint without modification.

Part Context

Rochester Electronics specializes in continuing source solutions for obsolete and end-of-life semiconductors. This part belongs to their portfolio of legacy memory devices, ensuring availability for products no longer supported by original manufacturers. It serves as a critical replacement for maintaining production continuity in established electronic designs.

Replacement Considerations

Direct pin-to-pin replacements may include other 256x4 PROM variants from different manufacturers. Verify electrical parameters such as access time and supply voltage limits before substitution. Ensure programming compatibility if the replacement requires field reprogramming.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.