AS7C256A-20JCNTR

$2.13

Description：IC SRAM 256KBIT PARALLEL 28SOJ
Series：-
Mfr：Alliance Memory, Inc.
Package：Tape & Reel (TR)

SKU:9e641715f2a4 Category: Memory IC Brand: Alliance Memory, Inc.

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Product introduction

Product Detailed Parameters

Description：IC SRAM 256KBIT PARALLEL 28SOJ
Series：-
Mfr：Alliance Memory, Inc.
Package：Tape & Reel (TR)
Memory Type：Volatile
Memory Format：SRAM
Technology：SRAM - Asynchronous
Memory Size：256Kbit
Memory Organization：32K x 8
Memory Interface：Parallel
Clock Frequency：-
Write Cycle Time - Word, Page：20ns
Voltage - Supply：4.5V ~ 5.5V
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：28-BSOJ (0.300", 7.62mm Width)
Supplier Device Package：28-SOJ
Access Time：20 ns
Grade：-
Qualification：-

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AS7C256A-20JCNTR

Overview

The AS7C256A-20JCNTR is an asynchronous static random-access memory (SRAM) integrated circuit manufactured by Alliance Memory, Inc. It provides a storage capacity of 256 kilobits, organized as 32K words by 8 bits. The device features a parallel interface with a maximum access time of 20 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and is housed in a 44-pin Small Outline J-Lead (SOJ) package. This component is designed for commercial temperature applications.

Feature Summary

Asynchronous parallel SRAM architecture for direct data access
High-speed 20ns access time for rapid read operations
Standard 5V single-supply operation compatibility
44-pin SOJ surface-mount packaging for board integration

Applications

Embedded systems requiring fast local data buffering
Industrial control units needing volatile memory retention
Consumer electronics with standard 5V logic levels
Communication equipment signal processing stages

Procurement Notes

Verify the specific suffix 'JCNTR' confirms the 44-pin SOJ package and tape-and-reel shipping format. Ensure the design supports 5V logic levels and commercial temperature ranges. Confirm pinout compatibility with existing footprints before procurement.

Selection Notes

Select this part when a 256Kbit asynchronous SRAM with 20ns speed is required in a 44-pin SOJ package. It suits designs operating at 5V that do not require industrial temperature ratings or lower voltage options like the 3.3V variants.

Part Context

This component belongs to the AS7C256A family of asynchronous SRAMs from Alliance Memory. It shares the same memory organization and electrical characteristics as other variants in the series but differs in package type and shipping configuration, specifically utilizing the 44-pin SOJ form factor.

Replacement Considerations

Direct substitutes include AS7C256A-20JCN for tube packaging or AS7C256A-10JCNTR for faster 10ns performance. Verify package dimensions and pin compatibility when considering these alternatives.

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.