Cypress CY14B108M manual Part Numbering Nomenclature CY14 B 108 K ZS P 20 X C T, ZS Tsop, Nvsram

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PRELIMINARY

CY14B108K, CY14B108M

Part Numbering Nomenclature

CY14 B 108 K ZS P 20 X C T

Option:

T - Tape & Reel

Blank - Std.

Temperature:

C - Commercial (0 to 70°C)

I - Industrial (–40 to 85°C)

Pb-Free

Speed:

20 - 20 ns

25 - 25 ns

P - 54 Pin

45 - 45 ns

Blank - 44 Pin

Package:

ZS - TSOP II

Data Bus:

K - x8 + RTC

M - x16 + RTC

Density:

108 - 8 Mb

Voltage:

B - 3.0V

NVSRAM

14 - AutoStore + Software STORE + Hardware STORE

Cypress

Document #: 001-47378 Rev. **

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Contents Logic Block Diagram1, 2 FeaturesFunctional Description Cypress Semiconductor CorporationPinouts Sram Read Device OperationSram Write AutoStore OperationHardware Store HSB Operation Hardware Recall Power UpSoftware Recall Software StoreA15 A05 Mode Power Mode SelectionPreventing AutoStore StoreNoise Considerations Data Protection Best PracticesReal Time Clock Operation Watchdog Timer AlarmCalibrating the Clock Interrupt Register Power MonitorInterrupts Flags RegisterPF Power Fail Flag WDF Watchdog Timer FlagPFE Power Fail Enable AF Alarm FlagWDS OscenWDF Oscf For the register is 0 to 0xFFFF9 0x7FFF9 Time Keeping SecondsTime-base 0xFFFF5 0x7FFF5 Alarm DayWrite only. Reading it always returns a 0xFFFF6 0x7FFF6 Interrupt Status/ControlCenturies 0xFFFF0 0x7FFF0 Flags 0xFFFF2 0x7FFF2 Alarm SecondsWatchdog This condition and write 0 to clear this flagRange Ambient Temperature DC Electrical CharacteristicsMaximum Ratings Operating RangeCapacitance Data Retention and EnduranceThermal Resistance AC Test ConditionsHot Temperature 85 oC RTC Backup CurrentRTC Battery Pin Voltage RTC Capacitor Pin Voltage TOCS RTC Oscillator Time to StartSwitching Waveforms AC Switching CharacteristicsParameters Sram Read Cycle Sram Write CycleStandby Active Data Output High Impedance Output Data ValidAddress Address Valid Data Input Input Data ValidInput Data Valid High Impedance Data Input Data OutputNot applicable for RTC register writes Data Input Input Data Valid High Impedance Data OutputParameters Description 20 ns 25 ns 45 ns Unit Min Max AutoStore/Power Up RecallSoftware Controlled Store and Recall Cycle Hardware Store Cycle To Output Active Time when write latch not setDescription 20 ns 25 ns 45 ns Unit Min Hardware Store Pulse WidthFor x16 Configuration For x8 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 Pin Tsop II Package Diagrams51-85160 Worldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationNew Data Sheet Document History