Cypress CY14B108K, CY14B108M manual Ordering Information

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				PRELIMINARY		CY14B108K, CY14B108M
						CY14B108K, CY14B108M


Ordering Information

Speed	Ordering Code			Package	Package Type		Operating
(ns)	Ordering Code			Diagram	Package Type		Range
(ns)				Diagram			Range
20	CY14B108K-ZS20XCT			51-85087	44-pin TSOPII		Commercial

	CY14B108K-ZS20XC			51-85087	44-pin TSOPII

	CY14B108K-ZS20XIT			51-85087	44-pin TSOPII		Industrial

	CY14B108K-ZS20XI			51-85087	44-pin TSOPII

	CY14B108M-ZSP20XCT			51-85160	54-pin TSOPII		Commercial

	CY14B108M-ZSP20XC			51-85160	54-pin TSOPII

	CY14B108M-ZSP20XIT			51-85160	54-pin TSOPII		Industrial

	CY14B108M-ZSP20XI			51-85160	54-pin TSOPII

25	CY14B108K-ZS25XCT			51-85087	44-pin TSOPII		Commercial

	CY14B108K-ZS25XC			51-85087	44-pin TSOPII

	CY14B108K-ZS25XIT			51-85087	44-pin TSOPII		Industrial

	CY14B108K-ZS25XI			51-85187	44-pin TSOPII

	CY14B108M-ZSP25XCT			51-85160	54-pin TSOPII		Commercial

	CY14B108M-ZSP25XC			51-85160	54-pin TSOPII

	CY14B108M-ZSP25XIT			51-85160	54-pin TSOPII		Industrial

	CY14B108M-ZSP25XI			51-85160	54-pin TSOPII

45	CY14B108K-ZS45XCT			51-85087	44-pin TSOPII		Commercial

	CY14B108K-ZS45XC			51-85087	44-pin TSOPII

	CY14B108K-ZS45XIT			51-85087	44-pin TSOPII		Industrial

	CY14B108K-ZS45XI			51-85187	44-pin TSOPII

	CY14B108M-ZSP45XCT			51-85160	54-pin TSOPII		Commercial

	CY14B108M-ZSP45XC			51-85160	54-pin TSOPII

	CY14B108M-ZSP45XIT			51-85160	54-pin TSOPII		Industrial

	CY14B108M-ZSP45XI			51-85160	54-pin TSOPII

All parts are Pb-free. The above table contains Preliminary information. Contact your local Cypress sales representative for availability of these parts.

Document #: 001-47378 Rev. **

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Contents Functional Description FeaturesLogic Block Diagram1, 2 Cypress Semiconductor CorporationPinouts Sram Write Device OperationSram Read AutoStore OperationSoftware Recall Hardware Recall Power UpHardware Store HSB Operation Software StorePreventing AutoStore Mode SelectionA15 A05 Mode Power StoreData Protection Best Practices Noise ConsiderationsReal Time Clock Operation Calibrating the Clock AlarmWatchdog Timer Interrupts Power MonitorInterrupt Register Flags RegisterPFE Power Fail Enable WDF Watchdog Timer FlagPF Power Fail Flag AF Alarm FlagWDF Oscf OscenWDS 0xFFFF9 0x7FFF9 Time Keeping Seconds For the register is 0 toWrite only. Reading it always returns a 0xFFFF5 0x7FFF5 Alarm DayTime-base 0xFFFF6 0x7FFF6 Interrupt Status/ControlWatchdog 0xFFFF2 0x7FFF2 Alarm SecondsCenturies 0xFFFF0 0x7FFF0 Flags This condition and write 0 to clear this flagMaximum Ratings DC Electrical CharacteristicsRange Ambient Temperature Operating RangeThermal Resistance Data Retention and EnduranceCapacitance AC Test ConditionsRTC Battery Pin Voltage RTC Backup CurrentHot Temperature 85 oC RTC Capacitor Pin Voltage TOCS RTC Oscillator Time to StartParameters Sram Read Cycle AC Switching CharacteristicsSwitching Waveforms Sram Write CycleAddress Address Valid Data Output High Impedance Output Data ValidStandby Active Data Input Input Data ValidNot applicable for RTC register writes Data Input Data OutputInput Data Valid High Impedance 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 Description 20 ns 25 ns 45 ns Unit Min To Output Active Time when write latch not setHardware Store Cycle Hardware Store Pulse WidthInputs and Outputs Mode Power For x8 ConfigurationFor x16 Configuration Truth Table For Sram OperationsNvsram Part Numbering Nomenclature CY14 B 108 K ZS P 20 X C TZS Tsop Ordering Information Package Diagrams Pin Tsop II51-85160 New Data Sheet Sales, Solutions, and Legal InformationWorldwide Sales and Design Support Products PSoC Solutions Document History