Cypress CY7C145, CY7C144 manual Document History, Sales, Solutions and Legal Information

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CY7C145, CY7C144

Document History Page

Document Title: CY7C145, CY7C144 8K x 8/9 Dual-Port Static RAM with Sem, Int, Busy

Document Number: 38-06034

Rev.

ECN No.

Orig. of

Submission

Description of Change

 

 

Change

Date

 

**

110175

SZV

09/29/01

Change from Spec number: 38-00163 to 38-06034

 

 

 

 

 

*A

122285

RBI

12/27/02

Power up requirements added to Maximum Ratings Information

 

 

 

 

 

*B

236752

YDT

See ECN

Removed cross information from features section, added CY7C144-15AI to

 

 

 

 

ordering information section

*C

393320

YIM

See ECN

Added Pb-Free Logo

 

 

 

 

Added Pb-Free parts to ordering information:

 

 

 

 

CY7C144-15AXC, CY7C144-15JXC, CY7C144-15AXI, CY7C144-25AXC,

 

 

 

 

CY7C144-55AXC, CY7C144-55JXC, CY7C145-15AXC, CY7C145-35JXC

*D

2623658

VKN/PYRS

12/17/08

Added CY7C144-15JXI in the Ordering information table

 

 

 

 

 

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© Cypress Semiconductor Corporation, 2005-2008. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress.

Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Use may be limited by and subject to the applicable Cypress software license agreement.

Document #: 38-06034 Rev. *D

Revised December 10, 2008

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All products and company names mentioned in this document may be the trademarks of their respective holders.

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Contents Logic Block Diagram FeaturesFunctional Description Cypress Semiconductor Corporation 198 Champion CourtPin Plcc Top View Pin ConfigurationsPin Definitions Left Port Right Port Description Selection Guide DescriptionUnit Electrical Characteristics Over the Operating Range Maximum RatingsOperating Range Parameter Description Test Conditions Max Unit CapacitanceSwitching Characteristics Over the Operating Range9 7C144-15 Switching Characteristics Over the Operating Range7C144-35 7C144-55 Parameter Description 7C145-15 7C145-35 7C145-55 Unit MinRead Cycle No Either Port Address Access15 Switching WaveformsCY7C145, CY7C144 Semaphore Read After Write Timing, Either Side25 Read with Busy M/S=HIGH20 Right Address Valid First CER Valid FirstRight Side Clears INT R Left Side Sets INT RRight Side Sets INT L Left Side Clears IntlArchitecture Operation Non-Contending Read/Write Inputs OutputsInterrupt Operation Example assumes = High Function Left Port Right PortTypical DC and AC Characteristics 8K x8 Dual-Port Sram Ordering InformationPin Plastic Leaded Chip Carrier CY7C144-15JXC Pin Plastic Leaded Chip Carrier CY7C144-55JXCPin Plastic Leaded Chip Carrier CY7C145-35JXC 8K x9 Dual-Port SramPin Thin Plastic Quad Flat Pack 14 x 14 x 1.4 mm A65 Package DiagramsPin Thin Plastic Quad Flat Pack A80 Sales, Solutions and Legal Information Worldwide Sales and Design Support Products PSoC SolutionsDocument History

CY7C145, CY7C144 specifications

Cypress Semiconductor is renowned for its advanced memory solutions, and two of its noteworthy products are the CY7C144 and CY7C145, both of which serve as emerging leaders in the field of synchronous dynamic random-access memory (SDRAM). These memory chips provide high-speed data access, making them ideal for various applications, including networking, automotive, and industrial electronics.

The CY7C144 is a 4-Mbit SRAM, while its counterpart, the CY7C145, is an 8-Mbit SRAM. Both chips utilize a synchronous interface, which allows them to operate at clock rates that significantly enhance data retrieval speeds. Designed for low power consumption, these devices feature several power-saving modes, making them suitable for battery-operated applications.

One of the main features of the CY7C144 and CY7C145 is their support for burst read and write operations. This function enables the memory to deliver multiple bits of data sequentially with a single command, substantially increasing throughput. Additionally, both models come with a wide data bus, typically 16 bits, allowing for efficient data handling and alignment with a variety of systems.

The technology behind these chips includes static CMOS processes, which promote high performance and reliability under various operating environments. The CY7C144 and CY7C145 both guarantee a high level of data integrity, thanks to advanced error detection and correction features. This makes them especially valuable in applications where data accuracy is critical.

Another critical aspect is the integration of an on-chip address decoder for efficient memory addressing, minimizing delays during data access. This characteristic plays a crucial role in optimizing the overall system performance, particularly in high-bandwidth applications.

In terms of environmental resilience, these memories are designed to withstand a range of temperatures, making them robust enough for industrial applications. The CY7C144 and CY7C145 also comply with several industry standards, ensuring compatibility with a wide array of devices and systems.

In summary, the CY7C144 and CY7C145 by Cypress Semiconductor stand out due to their blend of high speed, low power consumption, and robust reliability. With advanced features like burst read/write capabilities, error detection, and temperature resilience, these memory chips are exceptional choices for modern electronic applications demanding speed and efficiency. Their continued evolution reflects Cypress's commitment to innovation in the semiconductor industry, catering to the growing needs of a data-driven world.