Cypress STK14C88-5 manual AutoStore or Power Up Recall

Page 11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STK14C88-5

AutoStore or Power Up RECALL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

 

Alt

 

 

Description

 

 

STK14C88-5

 

 

Unit

 

 

 

 

 

Min

Max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t

 

 

 

[15]

 

 

 

 

 

 

 

tRESTORE

Power up RECALL Duration

 

 

 

 

 

550

 

 

 

 

s

 

HRECALL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

μ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t

STORE

[16]

 

 

 

 

 

 

 

tHLHZ

STORE Cycle Duration

 

 

 

 

 

10

 

 

 

 

ms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t

 

 

[16]

 

 

 

 

 

 

 

tHLQZ , tBLQZ

Time Allowed to Complete SRAM Cycle

 

1

 

 

 

 

 

 

 

s

 

DELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

μ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low Voltage Trigger Level

 

4.0

 

 

4.5

 

 

 

 

V

VRESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low Voltage Reset Level

 

 

 

 

 

3.6

 

 

 

 

V

tVCCRISE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC Rise Time

 

150

 

 

 

 

 

 

 

μs

t

VSBL

[13]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low Voltage Trigger (VSWITCH) to

HSB

low

 

 

 

 

 

300

 

 

 

 

ns

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switching Waveforms

 

Figure 12. AutoStore/Power Up RECALL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WE

Notes

15.tHRECALL starts from the time VCC rises above VSWITCH.

16.CE and OE low and WE high for output behavior.

17.HSB is asserted low for 1us when VCAP drops through VSWITCH. If an SRAM WRITE has not taken place since the last nonvolatile cycle, HSB is released and no store takes place.

Document Number: 001-51038 Rev. **

Page 11 of 17

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Contents San Jose, CA Document Number 001-51038 Rev Revised March 02 FeaturesFunctional Description Cypress Semiconductor Corporation 198 Champion CourtPin Definitions Pin ConfigurationsSram Write AutoStore Inhibit modeDevice Operation Sram ReadSoftware Recall Hardware Recall Power UpHardware Store HSB Operation Software StoreHardware Protect Low Average Active PowerData Protection Noise ConsiderationsBest Practices Hardware Mode SelectionA13-A0 Mode Power Data Retention and Endurance DC Electrical CharacteristicsMaximum Ratings Operating RangeAC Test Conditions CapacitanceThermal Resistance Parameter Description 35 ns 45 ns Unit Cypress Alt Min Max AC Switching CharacteristicsSwitching Waveforms Switching Parameter Alt Description STK14C88-5 Unit Min Max AutoStore or Power Up RecallParameter Alt Description 35 ns 45 ns Unit Min Max Software Controlled STORE/RECALL CycleHardware Store Low to Store Busy 300 Hardware Store CycleHardware Store High to Inhibit Off 700 Hardware Store Pulse WidthOrdering Information Part Numbering Nomenclature STK14C88 5 C 35 MPin 300-Mil Side Braze DIL Package DiagramPad 450-Mil LCC Document History Sales, Solutions, and Legal InformationNew data sheet

STK14C88-5 specifications

The Cypress STK14C88-5 is a high-performance, non-volatile static random-access memory (SRAM) solution that caters to a wide range of applications. This device seamlessly combines the benefits of SRAM technology with non-volatile memory, making it a compelling option for embedded systems requiring fast access speeds alongside persistent data storage.

One of the key features of the STK14C88-5 is its memory density. This chip comes with an 88 Kbit storage capacity, which is ample for various applications, including configuration storage and data logging in industrial systems, telecommunications, and consumer electronics. The memory is organized in a way that supports both byte-wise and word-wise access, ensuring flexibility to accommodate different data structures.

Speed is another attractive characteristic of the STK14C88-5. It operates at access speeds of up to 55 nanoseconds, providing quick read and write capabilities. This rapid performance is crucial for time-sensitive applications, enabling the device to handle real-time data processing effectively. The SRAM also supports a wide operating voltage range from 2.7V to 5.5V, making it versatile for different power supply configurations.

The device utilizes advanced technology to enhance reliability and endurance. The STK14C88-5 features built-in EEPROM technology, which allows it to retain data even when power is lost. This non-volatility is ideal for critical applications where data integrity is paramount.

In terms of interface, the STK14C88-5 provides a simple parallel interface, ensuring compatibility with various microcontrollers and processors. It also has control signals that support straightforward data read and write operations, allowing designers to integrate it easily into their existing architectures.

Moreover, the Cypress STK14C88-5 incorporates low-power consumption features, making it suitable for battery-operated devices. Its efficient power management ensures minimal energy usage without compromising performance, which is crucial in today’s energy-conscious environment.

Overall, the Cypress STK14C88-5 stands out with its combination of non-volatile storage, high-speed access, flexibility of operation, and power efficiency. These features make it an ideal choice for applications that demand reliable memory solutions with fast data processing capabilities, solidifying its position as a valuable component in the semiconductor industry.