2663934, Updated Features | Cypress CY14B101K specification

CY14B101K

Document Title: CY14B101K 1 Mbit (128K x 8) nvSRAM With Real Time Clock

Document Number: 001-06401

	REV.	ECN NO.	Orig. of Change	Submission	Description of Change
	REV.	ECN NO.	Orig. of Change	Date	Description of Change
				Date

	*I	2663934	GVCH/PYRS	02/24/09	Updated Features
					Updated pin definition of	WE
					Removed AutoStore enable/disable section
					Added Best practices
					Updated “Reading the clock”, “Backup Power”, “Stopping and
					starting the Oscillator” and “Alarm” descriptions under RTC
					operation
					Modified “Figure 4. RTC Recommended Component Configu-
					ration”
					Added footnotes 4, 5 and 6
					Added default values to RTC Register Map” table
					Updated flag register description in Register Map Detail” table
					Added Industrial specs for 25ns and 35ns speed
					Changed VIH from Vcc+0.3 to Vcc+0.5
					Added “Data Retention and Endurance” table on page 15
					Added Thermal resistance values
					Added alternate parameters in the AC switching characteristics
					table
					Renamed tOH to tOHA
					Changed tHRECALL from 20 to 40ms
					Changed tRECALL spec from 100μs to 170μs (Including tss of
					70us)
					Renamed tAS to tSA
					Renamed tGHAX to tHA
					Updated Figure 13, 14, 15 and 16
					Renamed tHLHX to tPHSB
					Added truth table for SRAM operations

Document Number: 001-06401 Rev. *I

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Cypress CY14B101K manual 2663934, Updated Features

Contents

Cypress Semiconductor Corporation 198 Champion Court FeaturesLogic Block Diagram Functional Description Pin Definitions Pin ConfigurationsOutput Enable, Active LOW. The active low Power Supply Inputs to the Device Device Operation AutoStore OperationHardware Store HSB Operation Data Protection Hardware Recall Power UpSoftware Store Software Recall Current versus Cycle Time Low Average Active Power Best Practices Store Mode Selection A15 A0 PowerRead Sram Write Sram Real Time Clock Operation Alarm Watchdog TimerCalibrating the Clock Flags Register Power MonitorInterrupts Interrupt Register Recommended Values Interrupt Block Diagram WDF Oscf RTC Register Map5 BCD Format Data Function/Range Time Keeping Minutes 0x1FFFA Register Map Detail Time Keeping Years 0x1FFFF 10s YearsTime Keeping Months 0x1FFFE 10s Month Date Time Keeping Hours 0x1FFFB Interrupt Status/Control 0x1FFF6 Alarm Day 0x1FFF5Register Map Detail Calibration/Control 0x1FFF7 Register Map Detail Alarm Hours 0x1FFF4 10s Alarm Hours To ignore the hours value Alarm Minutes 0x1FFF3When the Flags register is read or on power-up Operating Range DC Electrical CharacteristicsRange Ambient Temperature Maximum Ratings AC Test Conditions Data Retention and EnduranceCapacitance Thermal Resistance Parameter Sram Read Cycle AC Switching Characteristics Parameter Sram Write Cycle Min Max Parameter Description CY14B101K Unit Min Max AutoStore or Power Up Recall Parameter Alt Description 25 ns 35 ns 45 ns Unit Min Max Software Controlled STORE/RECALL Cycles 21 Hardware Store Cycle Soft Sequence Commands RTC Characteristics Inputs and Outputs Mode PowerTruth Table For Sram Operations Nvsram Part Numbering Nomenclature CY 14 B 101 K SP 25 X C T Ordering Information Pin Shrunk Small Outline Package Package Diagrams Orig. of Change Submission Description of Change Date Document History 2663934 Updated Features Sales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC SolutionsUSB