Cypress STK16C88 manual Features, Functional Description, Logic Block Diagram

Page 1

STK16C88

256 Kbit (32K x 8) AutoStore+ nvSRAM

Features

■25 ns and 45 ns access times

■Directly replaces battery-backed SRAM modules such as Dallas/Maxim DS1230 AB

■Automatic nonvolatile STORE on power loss

■Nonvolatile STORE under Software control

■Automatic RECALL to SRAM on power up

■Unlimited Read/Write endurance

■Unlimited RECALL cycles

■1,000,000 STORE cycles

■100 year data retention

■Single 5V+10% power supply

■Commercial and Industrial Temperatures

■28-pin (600 mil) PDIP package

■RoHS compliance

Functional Description

The Cypress STK16C88 is a 256 Kb fast static RAM with a nonvolatile element in each memory cell. The embedded nonvolatile elements incorporate QuantumTrap™ technology producing the world’s most reliable nonvolatile memory. The SRAM provides unlimited read and write cycles, while independent, nonvolatile data resides in the highly reliable QuantumTrap cell. Data transfers from the SRAM to the nonvolatile elements (the STORE operation) takes place automatically at power down. On power up, data is restored to the SRAM (the RECALL operation) from the nonvolatile memory. Both the STORE and RECALL operations are also available under software control.

Logic Block Diagram

Cypress Semiconductor Corporation • 198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Document Number: 001-50595 Rev. **

 

Revised January 29, 2009

[+] Feedback

Page 1 Page 2
Image 1
Page 1 Page 2
Contents Logic Block Diagram FeaturesFunctional Description Cypress Semiconductor Corporation 198 Champion CourtWrite Enable Input, Active LOW. When the chip is enabled Pin ConfigurationsOutput Enable, Active LOW. The active LOW Power Supply Inputs to the DeviceDevice Operation Hardware Recall Power UpSram Read Sram WriteHardware Protect Low Average Active PowerNoise Considerations Best Practices0x0E38 Read Sram Output Data Software STORE/RECALL Mode Selection 13 aRead Sram Output Data 0x03E0 Read Sram Output Data 0x303FMaximum Ratings DC Electrical CharacteristicsOperating Range Data Retention and EnduranceAC Test Conditions CapacitanceDescription Test Conditions Max Unit Parameter Description Test Conditions Pdip UnitSwitching Waveforms AC Switching CharacteristicsMin Max Parameter SwitchingPower up Recall Duration AutoStore or Power Up RecallLow Voltage Reset Level Parameter Alt Description STK16C88 Unit Min MaxParameter Alt Description 25 ns 45 ns Unit Min Max Software Controlled STORE/RECALL CycleOrdering Information Pin 600 Mil Pdip Package DiagramsNew data sheet Sales, Solutions and Legal InformationDocument History

STK16C88 specifications

The Cypress STK16C88 is a highly regarded SRAM (Static Random Access Memory) device that is designed for high-performance computing applications. As a member of the Cypress family of memory solutions, the STK16C88 is known for its efficiency, speed, and reliability, making it a popular choice among engineers and developers seeking robust memory solutions for their projects.

One of the key features of the STK16C88 is its high-speed access capability. It operates at a maximum access time of just 55 nanoseconds, enabling rapid data retrieval and processing. This characteristic makes it particularly suitable for applications requiring quick response times, such as telecommunications, networking equipment, and industrial automation systems.

The STK16C88 boasts a dual-port architecture, which allows simultaneous access to data from multiple devices. This enhances the flexibility of the memory chip, making it ideal for multi-processor systems where efficient data sharing is critical. The dual-port feature also facilitates easier designs for applications that require real-time data processing and eliminates potential bottlenecks that might hinder system performance.

In terms of capacity, the STK16C88 provides 128K bits of memory, organized as 16K x 8 bits. This allocation of memory provides ample space for storing data and program code, making it versatile for various applications, including embedded systems and consumer electronics. Additionally, it supports asynchronous read/write operations, ensuring that the system can perform tasks without being held up by the memory component.

Another important characteristic of the STK16C88 is its low power consumption, which is vital for battery-operated devices and portable electronics. The device operates with a supply voltage of 3.3V, making it suitable for modern low-power applications. Its energy-efficient design extends battery life and reduces heat generation, further enhancing the reliability of the systems that utilize it.

Moreover, the STK16C88 is characterized by its compatibility with various industry-standard memory interfaces, allowing for seamless integration into existing systems. The simplicity of implementation, combined with its robust performance and reliability, makes it an excellent choice for manufacturers looking to enhance the capabilities of their devices.

In conclusion, the Cypress STK16C88 is a high-performance, low-power SRAM solution that is well-suited for various applications ranging from telecommunications to consumer electronics. Its key features, including dual-port architecture, high-speed access, and low power consumption, position it as a valuable component in the design of contemporary electronic systems.
Top Page Image Contents