Cypress CY14B108K, CY14B108M manual Data Retention and Endurance, Capacitance, Thermal Resistance

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			PRELIMINARY		CY14B108K, CY14B108M
					CY14B108K, CY14B108M


Data Retention and Endurance

Parameter			Description	Min			Unit
DATAR	Data Retention			20			Years
NVC	Nonvolatile STORE Operations			200			K
Capacitance
In the following table, the capacitance parameters are listed. [13]
Parameter			Description	Test Conditions		Max		Unit
CIN	Input Capacitance			TA = 25°C, f = 1 MHz,		14			pF
				VCC = 0 to 3.0V
COUT	Output Capacitance			VCC = 0 to 3.0V		14			pF
Thermal Resistance
In the following table, the thermal resistance parameters are listed.[13]
Parameter			Description	Test Conditions		44 TSOP II	54 TSOP II		Unit
ΘJA	Thermal Resistance			Test conditions follow standard test		31.11	30.73		°C/W
	(Junction to Ambient)			methods and procedures for
				measuring thermal impedance, in
ΘJC	Thermal Resistance			measuring thermal impedance, in		5.56	6.08		°C/W
ΘJC	Thermal Resistance			accordance with EIA/JESD51.		5.56	6.08		°C/W
	(Junction to Case)
			Figure 6. AC Test Loads

	3.0V	577Ω	3.0V
	3.0V	R1	3.0V
		R1	OUTPUT
	OUTPUT		OUTPUT
	30 pF	R2	5 pF
		789Ω

577Ω

R1

R2 789Ω

AC Test Conditions

Input Pulse Levels	0V to 3V
Input Rise and Fall Times (10% - 90%)	<3 ns
Input and Output Timing Reference Levels	1.5V

Note

13. These parameters are only guaranteed by design and are not tested.

Document #: 001-47378 Rev. **

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Contents Features Logic Block Diagram1, 2Functional Description Cypress Semiconductor CorporationPinouts Device Operation Sram ReadSram Write AutoStore OperationHardware Recall Power Up Hardware Store HSB OperationSoftware Recall Software StoreMode Selection A15 A05 Mode PowerPreventing AutoStore StoreData Protection Best Practices Noise ConsiderationsReal Time Clock Operation Watchdog Timer AlarmCalibrating the Clock Power Monitor Interrupt RegisterInterrupts Flags RegisterWDF Watchdog Timer Flag PF Power Fail FlagPFE Power Fail Enable AF Alarm FlagWDS OscenWDF Oscf 0xFFFF9 0x7FFF9 Time Keeping Seconds For the register is 0 to0xFFFF5 0x7FFF5 Alarm Day Time-baseWrite only. Reading it always returns a 0xFFFF6 0x7FFF6 Interrupt Status/Control0xFFFF2 0x7FFF2 Alarm Seconds Centuries 0xFFFF0 0x7FFF0 FlagsWatchdog This condition and write 0 to clear this flagDC Electrical Characteristics Range Ambient TemperatureMaximum Ratings Operating RangeData Retention and Endurance CapacitanceThermal Resistance AC Test ConditionsRTC Backup Current Hot Temperature 85 oCRTC Battery Pin Voltage RTC Capacitor Pin Voltage TOCS RTC Oscillator Time to StartAC Switching Characteristics Switching WaveformsParameters Sram Read Cycle Sram Write CycleData Output High Impedance Output Data Valid Standby ActiveAddress Address Valid Data Input Input Data ValidData Input Data Output Input Data Valid High ImpedanceNot applicable for RTC register writes Data Input Input Data Valid High Impedance Data OutputAutoStore/Power Up Recall Parameters Description 20 ns 25 ns 45 ns Unit Min MaxSoftware Controlled Store and Recall Cycle To Output Active Time when write latch not set Hardware Store CycleDescription 20 ns 25 ns 45 ns Unit Min Hardware Store Pulse WidthFor x8 Configuration For x16 ConfigurationInputs and Outputs Mode Power Truth Table For Sram OperationsZS Tsop Part Numbering Nomenclature CY14 B 108 K ZS P 20 X C TNvsram Ordering Information Package Diagrams Pin Tsop II51-85160 Sales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC SolutionsNew Data Sheet Document History