Cypress CY14B101K manual Software Controlled STORE/RECALL Cycles 21

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CY14B101K

Software Controlled STORE/RECALL Cycles [21, 22]

Parameter

Alt.

Description

25 ns

35 ns

45 ns

Unit

Parameter

Min

Max

Min

Max

Min

Max

tRC

tAVAV

STORE/RECALL Initiation Cycle

25

 

35

 

45

 

ns

 

 

Time

 

 

 

 

 

 

 

tSA

tAVEL

Address Setup Time

0

 

0

 

0

 

ns

tCW

tELEH

Clock Pulse Width

20

 

25

 

30

 

ns

tHA

tEHAX

Address Hold Time

1

 

1

 

1

 

ns

tRECALL

 

RECALL Duration

 

170

 

170

 

170

μs

Figure 13. CE Controlled Software STORE/RECALL Cycle [22]

ADDRESS

CE

OE

tRC

ADDRESS # 1

tSA

 

 

 

 

tSCE

 

 

 

 

 

 

 

 

tHA

tRC

ADDRESS # 6

tSTORE / tRECALL

DQ (DATA)

HIGH IMPEDANCE

DATA VALID

DATA VALID

Figure 14. OE Controlled Software STORE/RECALL Cycle [22]

ADDRESS

CE

OE

tRC

ADDRESS # 1

tSA

 

 

 

 

tSCE

 

 

 

 

 

 

 

 

tHA

tRC

ADDRESS # 6

tSTORE / tRECALL

DQ (DATA)

DATA VALID

DATA VALID

HIGH IMPEDANCE

 

Notes

21.The software sequence is clocked with CE controlled or OE controlled READs.

22.The six consecutive addresses are read in the order listed in the Table 2 on page 6. WE is HIGH during all six consecutive cycles.

Document Number: 001-06401 Rev. *I

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Contents Features Logic Block DiagramFunctional Description Cypress Semiconductor Corporation 198 Champion CourtPin Configurations Output Enable, Active LOW. The active lowPower Supply Inputs to the Device Pin DefinitionsHardware Store HSB Operation Device OperationAutoStore Operation Hardware Recall Power Up Software StoreSoftware Recall Data ProtectionLow Average Active Power Best Practices Current versus Cycle TimeMode Selection A15 A0 Power Read SramWrite Sram StoreReal Time Clock Operation Calibrating the Clock AlarmWatchdog Timer Power Monitor InterruptsInterrupt Register Flags RegisterInterrupt Block Diagram Recommended ValuesRTC Register Map5 BCD Format Data Function/Range WDF OscfRegister Map Detail Time Keeping Years 0x1FFFF 10s Years Time Keeping Months 0x1FFFE 10s MonthDate Time Keeping Hours 0x1FFFB Time Keeping Minutes 0x1FFFAAlarm Day 0x1FFF5 Register Map Detail Calibration/Control0x1FFF7 Interrupt Status/Control 0x1FFF6When the Flags register is read or on power-up Register Map Detail Alarm Hours 0x1FFF4 10s Alarm HoursTo ignore the hours value Alarm Minutes 0x1FFF3 DC Electrical Characteristics Range Ambient TemperatureMaximum Ratings Operating RangeData Retention and Endurance CapacitanceThermal Resistance AC Test ConditionsAC Switching Characteristics Parameter Sram Read CycleMin Max Parameter Sram Write CycleAutoStore or Power Up Recall Parameter Description CY14B101K Unit Min MaxSoftware Controlled STORE/RECALL Cycles 21 Parameter Alt Description 25 ns 35 ns 45 ns Unit Min MaxSoft Sequence Commands Hardware Store CycleTruth Table For Sram Operations RTC CharacteristicsInputs and Outputs Mode Power Part Numbering Nomenclature CY 14 B 101 K SP 25 X C T NvsramOrdering Information Package Diagrams Pin Shrunk Small Outline PackageDocument History Orig. of Change Submission Description of Change DateUpdated Features 2663934USB Sales, Solutions, and Legal InformationWorldwide Sales and Design Support Products PSoC Solutions