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Cypress/Infineon CY7C028V-20AXI Memory: A Comprehensive Guide

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Update time : 2025-05-14 16:21:10
 
The Cypress/Infineon CY7C028V - 20AXI is a 3.3V, 64K×16 dual - port static random - access memory (SRAM). It features a 0.35 - micron CMOS process, enabling a balance between high - speed access (20 ns) and low power consumption (120 mA typical operating current and 10 μA typical standby current). Its true dual - port design allows simultaneous access to the same memory location, which is suitable for multi - processor and high - speed data - interaction scenarios. With on - chip arbitration logic and semaphores, it can effectively handle data access conflicts and resource sharing. It also has an automatic power - down function and can work in commercial and industrial temperature ranges. Packaged in a 100 - pin Pb - free TQFP, it's widely used in areas like industrial automation and automotive electronics.
 

Cypress/Infineon CY7C028V-20AXI's Features

The Cypress/Infineon CY7C028V - 20AXI is a 3.3V, 64K×16 dual - port static random - access memory (SRAM) with the following remarkable features:
  • Dual - Port Design: It uses true dual - port memory cells, allowing simultaneous access to the same memory location. The two ports can independently and asynchronously read from and write to any location in memory, making it suitable for multi - processor scenarios or applications that require high - speed data interaction.
  • Memory Structure: It has a 64K×16 memory organization, which can meet the requirements of specific data storage capacity and bit - width.
  • Manufacturing Process: The 0.35 - micron complementary metal - oxide - semiconductor (CMOS) process is employed, achieving optimal speed while effectively reducing power consumption.
  • Speed and Power Consumption
    • High - Speed Access: The access time can reach 20 ns, enabling quick responses to data read and write requests and enhancing system operation efficiency.
    • Low Power Consumption: The typical operating current is 120 mA, which reduces the overall system power consumption while ensuring performance. The typical standby current is 10 μA (for both ports at CMOS level), further minimizing energy consumption, making it suitable for applications with high power - consumption requirements.
  • Operating Modes
    • Fully Asynchronous Operation: It does not require strict clock synchronization, and the read and write operations of each port can be carried out independently, improving the flexibility of system design.
    • Automatic Power - Down: Each port can independently control the automatic power - down function through the Chip Enable (CE) pin, reducing power consumption when the memory is not accessed.
  • Function Expansion
    • Bus Expansion: When using master/slave chip select, the data bus can be expanded to 32/36 bits or wider, facilitating the construction of large - capacity and high - performance storage systems.
    • On - Chip Arbitration Logic: The built - in arbitration logic is used to handle conflicts when multiple processors access the same data simultaneously, ensuring the correctness and stability of data access.
  • Communication and Control
    • Semaphores and Handshaking: Integrated semaphores enable software handshaking between ports, which is used to coordinate the use of shared resources. The interrupt flag (INT) is provided to facilitate communication between ports or systems through the mailbox mechanism.
    • Byte Control: It has independent upper - byte and lower - byte control functions, allowing flexible reading and writing of different parts of the data.
    • Dual Chip Enable: The dual - chip enable design enhances the control ability over the working state of the chip.
    • Pin Selection: The M/S pin can be used to select the master/slave mode, facilitating the implementation of 32/36 - bit or wider memory applications without the need for additional master - slave devices or discrete logic.
  • Temperature Range: It supports the industrial temperature range (-40°C to +85°C), making it suitable for various industrial applications in harsh environments.
  • Package Form: It adopts a 100 - pin lead - free thin quad flat pack (TQFP). This package form has good electrical and mechanical properties, facilitating installation and integration into circuit boards.
 

Cypress/Infineon CY7C028V-20AXI's Applications

The Cypress/Infineon CY7C028V - 20AXI, as a 3.3V, 64K×16 dual - port static random - access memory (SRAM), has a wide range of applications in multiple fields due to its unique performance and features.
  1. Inter - Processor Communication and Multi - Processor Systems: In multi - processor systems, different processors need to share data efficiently. The dual ports of the CY7C028V - 20AXI allow simultaneous access to the same memory location, enabling processors to read and write data independently and asynchronously. For example, in the multi - processor collaborative work scenario in the industrial control field, one processor is responsible for collecting sensor data and writing it into this SRAM, while another processor reads the data from it for analysis and decision - making. Its high - speed access (20 ns) and low - power consumption (typical operating current of 120 mA and typical standby current of 10 μA) ensure the timeliness of data transmission and the overall low energy consumption of the system.
  2. Communication Status Buffering: In communication systems, the stability and efficiency of data transmission are of great significance. The CY7C028V - 20AXI can be used as a communication status buffer to store data and status information during the communication process. For instance, in a network router, it can temporarily store data packets, coordinate data reception and transmission, and avoid data loss or conflicts. Its on - chip arbitration logic and semaphore mechanism can effectively handle the situation where multiple ports access data simultaneously, ensuring smooth communication.
  3. Dual - Port Video/Graphic Memory: In the video and graphic processing field, high read and write speeds and data bandwidth of memory are required. The high - speed access speed and 16 - bit data width of the CY7C028V - 20AXI make it suitable for dual - port video/graphic memory applications. In a display controller, one port is used to receive image data from the graphics processing unit and write it in, while the other port reads out the data and sends it to the display device, achieving fast image refresh and display, and enhancing the visual effect.
  4. Industrial Automation and Control: In the industrial automation environment, the system needs to cope with complex and changeable working conditions and real - time control requirements. This SRAM supports the industrial temperature range (-40°C to +85°C) and can operate stably in harsh industrial environments. In the control system of an automated production line, it can store device status information, control instructions, and other data. Different control modules can quickly access these data through the dual ports, achieving precise control and efficient collaboration, and improving production efficiency and product quality.
  5. Automotive Electronics: Automotive electronic systems have extremely high requirements for reliability and performance. The features of the CY7C028V - 20AXI make it suitable for the automotive electronics field, such as automotive engine control units (ECUs), body control modules, etc. In these applications, it can store vehicle operation data, sensor information, and control parameters. Different functional modules access the data through the dual ports to achieve precise control and monitoring of the vehicle, ensuring driving safety and stability.
 

 

Cypress/Infineon CY7C028V-20AXI's Attributes

Product Attribute                                                                  Attribute Value
Infineon
Product Category: SRAM
Shipping Restrictions:  Mouser does not presently sell this product in your region.
RoHS: YES
1 Mbit
64 k x 16
20 ns
Parallel
3.6 V
3 V
195 mA
- 40 C
+ 85 C
SMD/SMT
TQFP-100
Tray
Brand: Infineon Technologies
Data Rate: SDR
Memory Type: SDR
Moisture Sensitive: Yes
Number of Ports: 2
Product Type: SRAM
Series: CY7C028V
90
Subcategory: Memory & Data Storage
Type: Asynchronous
Unit Weight: 0.023175 oz
 

Cypress/Infineon CY7C028V-20AXI's Datasheet


 

Cypress/Infineon CY7C028V-20AXI's Category-Memory

In modern electronic systems, Memory plays a crucial role as the core hub for data storage and exchange. From personal computers to complex industrial control systems, and from smartphones to automotive electronic devices, the performance of Memory directly impacts the operating efficiency and stability of the entire system. High - speed Memory can quickly respond to data read and write requests, reducing system waiting time and enhancing the user experience. Low - power - consumption Memory can lower device energy consumption and extend battery life, which is in line with the development trend of green environmental protection. At the same time, large - capacity Memory can store more data to meet the growing storage demands.

The Cypress/Infineon CY7C028V - 20AXI, as an excellent dual - port static random - access memory, has unique advantages in the Memory field. It features a 64K×16 memory structure, which can meet the requirements of specific data storage capacity and bit - width. Relying on the 0.35 - micron CMOS process, it achieves a balance between high - speed access (20 ns) and low power consumption (typical operating current of 120 mA and typical standby current of 10 μA). Its dual - port design allows simultaneous access to the same memory location, making it suitable for multi - processor scenarios or applications that require high - speed data interaction. In fields such as industrial automation and automotive electronics, the CY7C028V - 20AXI plays a key role in providing strong support for the efficient and stable operation of systems.

 

CY7C028V-20AXI's Manufacturer-Cypress/Infineon

After Cypress was acquired by Infineon, the two companies have achieved remarkable results in the field of Memory, with a rich variety of product types and excellent performance. These achievements stem not only from technological innovation but also from the coordinated development of manufacturing and marketing strategies.
Rich Variety of Memory Products: After Cypress was acquired by Infineon, by integrating the resources of both companies, a rich product system has been established in the field of Memory. In terms of NOR Flash Memory, a variety of products with different specifications are provided to meet the requirements of different applications for storage capacity and read-write speed, and they are widely used in scenarios such as code storage. F-RAM has the characteristics of high-speed read-write and low power consumption, playing a key role in devices with high requirements for power consumption and read-write speed, such as electricity meters and smart cards. SRAM products, such as the CY7C027V/027AV/028V/028AV and CY7C037AV/038V series, offer different choices of storage capacity and bit width. With advantages such as high-speed access (15 - 25ns), low power consumption (a typical operating current of 115mA and a typical standby current of 10μA), a dual-port design, and on-chip arbitration logic, they are suitable for scenarios such as multi-processor systems, communication status buffering, and video/graphic memory.
Advanced Technological Innovation: In terms of manufacturing processes, a 0.35-micron CMOS process is adopted to achieve a good balance between memory performance and power consumption. Products like the CY7C028V - 20AXI can achieve high-speed access and low power consumption through this process. New memory technologies and architectures are continuously developed to improve memory performance, capacity, and reliability. The dual-port design allows for simultaneous access to the same memory location, and independent asynchronous read and write operations greatly improve the efficiency of data interaction. On-chip arbitration logic effectively solves conflicts when multiple processors access data simultaneously. The semaphore mechanism and interrupt flags enable efficient software handshaking and communication between ports.
Reliable Manufacturing: A strict quality control system ensures the high quality and reliability of memory products. Every link from raw material procurement to the production process is strictly controlled, and various aspects of the product, such as electrical performance, stability, and durability, are tested and verified to ensure that the products meet high standards. There is a large-scale production capacity to meet the substantial market demand for memory products. Advanced production equipment and efficient production processes can achieve efficient production, and by optimizing the production process and supply chain management, production costs are reduced, and the competitiveness of the products is improved.
Wide Market Coverage: The products are widely applied in multiple industries, including automotive, industrial, consumer electronics, and communication. In automotive electronics, they are used in engine control units, body control modules, etc., to ensure the stable operation of vehicles. In the industrial field, they are suitable for scenarios such as the control of automated production lines and industrial communication. In consumer electronics, they meet the requirements of smart devices for high-speed data processing and storage. In the communication field, they provide efficient data storage and exchange support for network devices. A large-scale sales and distribution network has been established globally, and cooperative relationships have been established with numerous enterprises to ensure that products can reach customers quickly and conveniently, increasing the market share of the products.

 

CY7C028V-20AXI alternative parts: CY7C019V-20AXC

Hide Shared Attributes  
Part Number CY7C028V-20AXI +BOM CY7C019V-20AXC +BOM
Manufacturer: Cypress Semiconductor Corp                                          Cypress Semiconductor Corp
Description: IC SRAM 1M PARALLEL 100TQFP IC SRAM 1.152M PARALLEL 100TQFP
Mount: Surface Mount Surface Mount
Mounting Type: Surface Mount Surface Mount
Package / Case: 100-LQFP 100-LQFP
Number of Pins: 100 100
Memory Types: Volatile Volatile
Operating Temperature: -40°C~85°C TA 0°C~70°C TA
Packaging: Tray Tray
Published: 2004 1997
JESD-609 Code: e3 e3
Part Status: Obsolete Obsolete
Moisture Sensitivity Level (MSL): 3 (168 Hours) 3 (168 Hours)
Number of Terminations: 100 100
Terminal Finish: Matte Tin (Sn) Matte Tin (Sn)
Additional Feature: AUTOMATIC POWER-DOWN -
Voltage - Supply: 3V~3.6V 3V~3.6V
Terminal Position: QUAD QUAD
Peak Reflow Temperature (Cel): 260 -
Number of Functions: 1 1
Supply Voltage: 3.3V 3.3V
Terminal Pitch: 0.5mm 0.5mm
Frequency: 20GHz 20GHz
Time@Peak Reflow Temperature-Max (s): 30 -
Base Part Number: CY7C028 CY7C019
Pin Count: 100 100
Operating Supply Voltage: 3.3V 3.3V
Supply Voltage-Max (Vsup): 3.6V 3.6V
Supply Voltage-Min (Vsup): 3V 3V
Memory Size: 1Mb 64K x 16 1.152Mb 128K x 9
Number of Ports: 2 2
Nominal Supply Current: 140mA 175mA
Memory Format: SRAM SRAM
Memory Interface: Parallel Parallel
Organization: 64KX16 -
Output Characteristics: 3-STATE 3-STATE
Memory Width: 16 9
Write Cycle Time - Word, Page: 20ns 20ns
Address Bus Width: 16b 17b
Density: 1 Mb 1.1 Mb
Standby Current-Max: 0.00005A 0.00005A
I/O Type: COMMON COMMON
Sync/Async: Asynchronous Asynchronous
Word Size: 16b 9b
Standby Voltage-Min: 2V 3V
Ambient Temperature Range High: 85°C -
Height: 1.6mm -
Length: 14mm 14mm
Radiation Hardening: No No
RoHS Status: ROHS3 Compliant ROHS3 Compliant
Lead Free: Lead Free Lead Free
Height Seated (Max): - 1.6mm
 
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