Cypress manual AutoStore or Power Up Recall, Parameter Description CY14B101K Unit Min Max

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							CY14B101K

AutoStore or Power Up RECALL

Parameter		Description			CY14B101K			Unit
Parameter		Description		Min		Max		Unit
				Min		Max
tHRECALL [18]	Power Up RECALL Duration					40		ms
tSTORE [19, 20]	STORE Cycle Duration		Commercial			12.5		ms
			Industrial			15		ms

VSWITCH	Low Voltage Trigger Level					2.65		V
tVCCRISE	VCC Rise Time			150				μs

Figure 12. AutoStore/Power Up RECALL

	STORE occurs only	No STORE occurs
VCC	if a SRAM write	without atleast one
VCC	has happened	SRAM write

VSWITCH
tVCCRISE
AutoStore	tSTORE
tSTORE	tSTORE

POWER-UP RECALL

tHRECALL

Read & Write Inhibited

Notes

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

19.If an SRAM Write does not taken place since the last nonvolatile cycle, no STORE takes place.

20.Industrial Grade Devices require 15 ms Max.

Document Number: 001-06401 Rev. *I

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Contents Cypress Semiconductor Corporation 198 Champion Court FeaturesLogic Block Diagram Functional DescriptionPin Definitions Pin ConfigurationsOutput Enable, Active LOW. The active low Power Supply Inputs to the DeviceAutoStore Operation Device OperationHardware Store HSB Operation Data Protection Hardware Recall Power UpSoftware Store Software RecallCurrent versus Cycle Time Low Average Active Power Best PracticesStore Mode Selection A15 A0 PowerRead Sram Write SramReal Time Clock Operation Watchdog Timer AlarmCalibrating the Clock Flags Register Power MonitorInterrupts Interrupt RegisterRecommended Values Interrupt Block DiagramWDF Oscf RTC Register Map5 BCD Format Data Function/RangeTime Keeping Minutes 0x1FFFA Register Map Detail Time Keeping Years 0x1FFFF 10s YearsTime Keeping Months 0x1FFFE 10s Month Date Time Keeping Hours 0x1FFFBInterrupt Status/Control 0x1FFF6 Alarm Day 0x1FFF5Register Map Detail Calibration/Control 0x1FFF7To ignore the hours value Alarm Minutes 0x1FFF3 Register Map Detail Alarm Hours 0x1FFF4 10s Alarm HoursWhen the Flags register is read or on power-up Operating Range DC Electrical CharacteristicsRange Ambient Temperature Maximum RatingsAC Test Conditions Data Retention and EnduranceCapacitance Thermal ResistanceParameter Sram Read Cycle AC Switching CharacteristicsParameter Sram Write Cycle Min MaxParameter Description CY14B101K Unit Min Max AutoStore or Power Up RecallParameter Alt Description 25 ns 35 ns 45 ns Unit Min Max Software Controlled STORE/RECALL Cycles 21Hardware Store Cycle Soft Sequence CommandsInputs and Outputs Mode Power RTC CharacteristicsTruth Table For Sram Operations Nvsram Part Numbering Nomenclature CY 14 B 101 K SP 25 X C TOrdering Information Pin Shrunk Small Outline Package Package DiagramsOrig. of Change Submission Description of Change Date Document History2663934 Updated FeaturesWorldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationUSB

AutoStore or Power Up RECALL

Parameter

Description

CY14B101K

Unit

Min

Max

VCC Rise Time

150

Figure 12. AutoStore/Power Up RECALL