Cypress manual AutoStore or Power Up Recall, Parameter Alt Description CY14B101L Unit Min Max

Page 11

 

 

 

 

 

 

CY14B101L

 

 

 

 

 

 

 

 

AutoStore or Power Up RECALL

 

 

 

 

Parameter

Alt

 

Description

CY14B101L

 

Unit

 

Min

Max

 

 

 

 

 

 

 

tHRECALL [13]

tRESTORE

 

Power up RECALL Duration

 

20

 

ms

tSTORE [14, 15]

tHLHZ

 

STORE Cycle Duration

 

12.5

 

ms

VSWITCH

 

 

Low Voltage Trigger Level

 

2.65

 

V

tVCCRISE

 

 

VCC Rise Time

150

 

 

μs

Switching Waveforms

Figure 9. AutoStore/Power Up RECALL

 

STORE occurs only

No STORE occurs

VCC

if a SRAM write

without atleast one

has happened

SRAM write

VSWITCH

 

tVCCRISE

 

AutoStore

tSTORE

tSTORE

POWER-UP RECALL

tHRECALL

tHRECALL

Read & Write Inhibited

Note Read and Write cycles are ignored during STORE, RECALL, and while Vcc is below VSWITCH

Notes

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

14.If an SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE will take place.

15.Industrial Grade devices requires 15 ms max.

Document Number: 001-06400 Rev. *I

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Contents Cypress Semiconductor Corporation FeaturesLogic Block Diagram Functional DescriptionPin Definitions PinoutsAutoStore Operation Device OperationSram Read Sram WriteSoftware Recall Hardware Recall Power UpLow Average Active Power Software StoreBest Practices Preventing StoreHardware Mode Selection A15 A0 Power Operating Range DC Electrical CharacteristicsRange Ambient Temperature Maximum RatingsAC Test Conditions Data Retention and EnduranceCapacitance Thermal ResistanceParameter AC Switching CharacteristicsSwitching Waveforms Min MaxAddress Setup to Start of Write Chip Enable To End of WriteData Setup to End of Write Address Setup to End of WriteParameter Alt Description CY14B101L Unit Min Max AutoStore or Power Up RecallParameter Alt Description 25 ns 35 ns 45 ns Unit Min Max Software Controlled STORE/RECALL CycleHardware Store Pulse Width Hardware Store CycleParameter Alt Description CY14B101L Unit Min Ordering Information Part Numbering Nomenclature CY 14 B 101 L SZ 25 X C TPackage Type Operating Range Package DiagramsSpeed Ordering Code Pin Shrunk Small Outline Package Document Title CY14B101L 1 Mbit 128K x 8 nvSRAM Document HistoryUSB Sales, Solutions, and Legal Information