Cypress CY14B108M Specifiche

CY14B108K, CY14B108M8 Mbit (1024K x 8/512K x 16) nvSRAM withReal Time ClockCypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 10 of 31Figure 3. Watchdog Timer Block Diagram.Power MonitorThe CY14B108K provides a power man

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 11 of 31Figure 4. RTC Recommended Component Configuration Figure 5. Interrupt Block DiagramRe

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 12 of 31Table 4. RTC Register Map[7]Register BCD Format Data[8]Function/RangeCY14B108K CY14B10

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 13 of 31Table 5. Register Map DetailRegisterDescriptionCY14B108K CY14B108M0xFFFFF 0x7FFFFTime

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 14 of 31RegisterDescriptionCY14B108K CY14B108M0xFFFF8 0x7FFF8Calibration/ControlD7 D6 D5 D4 D3

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 15 of 31RegisterDescriptionCY14B108K CY14B108M0xFFFF4 0x7FFF4Alarm - HoursD7 D6 D5 D4 D3 D2 D1

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 16 of 31Maximum RatingsExceeding maximum ratings may impair the useful life of thedevice. These

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 17 of 31AC Test ConditionsInput Pulse Levels ...

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 18 of 31RTC Characteristics Parameters Description Min Typ[10]Max UnitsVRTCbatRTC Battery Pin V

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 19 of 31AC Switching Characteristics ParametersDescription25 ns 45 nsUnitCypressParametersAltPa

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 2 of 31ContentsFeatures ...

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 20 of 31Switching WaveformsFigure 8. SRAM Read Cycle 2: CE and OE Controlled[3, 15, 19] Figure

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 21 of 31Switching WaveformsFigure 10. SRAM Write Cycle 2: CE Controlled[3, 18, 19, 20]Figure 1

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 22 of 31AutoStore/Power Up RECALLParameters DescriptionCY14B108K/CY14B108MUnitMin MaxtHRECALL [

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 23 of 31Software Controlled STORE and RECALL Cycle In the following table, the software control

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 24 of 31Hardware STORE CycleParameters DescriptionCY14B108K/CY14B108MUnitMin MaxtDHSB HSB To Ou

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 25 of 31Truth Table For SRAM OperationsHSB should remain HIGH for SRAM Operations.For x8 Config

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 26 of 31Part Numbering NomenclatureOption:T - Tape & ReelBlank - Std.Speed:25 - 25 nsData B

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 27 of 31Ordering InformationSpeed(ns)Ordering CodePackageDiagramPackage TypeOperatingRange25 CY

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 28 of 31Package Diagrams Figure 17. 44-Pin TSOP II (51-85087)51-85087 *B[+] Feedback

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 29 of 31Figure 18. 54-Pin TSOP II (51-85160)Package Diagrams (continued)51-85160 **[+] Feedba

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 3 of 31 Note4. Address expansion for 16 Mbit. NC pin not connected to die.PinoutsFigure 1. Pin

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 30 of 31Document History PageDocument Title: CY14B108K, CY14B108M 8 Mbit (1024K x 8/512K x 16)

Document #: 001-47378 Rev. *D Revised December 15, 2009 Page 31 of 31All products and company names mentioned in this document are the trademarks of t

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 4 of 31Device OperationThe CY14B108K/CY14B108M nvSRAM is made up of twofunctional components pa

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 5 of 31To reduce unnecessary nonvolatile STOREs, AutoStore, andHardware STORE operations are ig

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 6 of 31Preventing AutoStoreThe AutoStore function is disabled by initiating an AutoStoredisable

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 7 of 31Data ProtectionThe CY14B108K/CY14B108M protects data from corruptionduring low voltage c

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 8 of 31Real Time Clock OperationnvTime OperationThe CY14B108K/CY14B108M offers internal registe

CY14B108K, CY14B108MDocument #: 001-47378 Rev. *D Page 9 of 31The value of OSCF must be reset to ‘0’ when the time registersare written for the first