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CY14B108K-ZS45XI Datasheet(PDF) 2 Page - Cypress Semiconductor |
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CY14B108K-ZS45XI Datasheet(HTML) 2 Page - Cypress Semiconductor |
2 / 31 page CY14B108K, CY14B108M Document #: 001-47378 Rev. *F Page 2 of 31 Contents Pinouts .............................................................................. 3 Device Operation .............................................................. 4 SRAM Read ....................................................................... 4 SRAM Write ....................................................................... 4 AutoStore Operation ........................................................ 4 Hardware STORE (HSB) Operation................................. 5 Hardware RECALL (Power-Up) ....................................... 5 Software STORE ............................................................... 5 Software RECALL............................................................. 5 Preventing AutoStore....................................................... 6 Data Protection ................................................................. 7 Noise Considerations....................................................... 7 Real Time Clock Operation.............................................. 7 nvTime Operation........................................................ 7 Clock Operations......................................................... 7 Reading the Clock ....................................................... 7 Setting the Clock ......................................................... 7 Backup Power ............................................................. 7 Stopping and Starting the Oscillator............................ 8 Calibrating the Clock ................................................... 8 Alarm ........................................................................... 8 Watchdog Timer .......................................................... 8 Power Monitor ............................................................. 9 Interrupts ..................................................................... 9 Flags Register ........................................................... 10 Best Practices................................................................. 15 Maximum Ratings........................................................... 16 Operating Range............................................................. 16 DC Electrical Characteristics ........................................ 16 Data Retention and Endurance ..................................... 17 Capacitance .................................................................... 17 Thermal Resistance........................................................ 17 AC Test Conditions ........................................................ 17 RTC Characteristics ....................................................... 18 AC Switching Characteristics ....................................... 19 Switching Waveforms .................................................... 19 Switching Waveforms .................................................... 20 Switching Waveforms .................................................... 21 AutoStore/Power-Up RECALL....................................... 22 Switching Waveforms .................................................... 22 Software Controlled STORE and RECALL Cycle ........ 23 Switching Waveforms .................................................... 23 Hardware STORE Cycle ................................................. 24 Switching Waveforms .................................................... 24 Truth Table For SRAM Operations................................ 25 For x8 Configuration.................................................. 25 For x16 Configuration................................................ 25 Ordering Information...................................................... 26 Ordering Code Definition........................................... 26 Package Diagrams.......................................................... 27 Acronyms........................................................................ 29 Document Conventions ................................................. 29 Units of Measure ....................................................... 29 Document History Page ................................................. 30 Sales, Solutions, and Legal Information ...................... 31 Worldwide Sales and Design Support....................... 31 Products .................................................................... 31 PSoC Solutions ......................................................... 31 [+] Feedback |
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