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CY14B104K-ZS45XIT Datasheet(PDF) 2 Page - Cypress Semiconductor |
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CY14B104K-ZS45XIT Datasheet(HTML) 2 Page - Cypress Semiconductor |
2 / 34 page CY14B104K, CY14B104M Document Number: 001-07103 Rev. *Z Page 2 of 34 Contents Pin Definitions .................................................................. 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 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 Maximum Ratings ........................................................... 15 Operating Range ............................................................. 15 DC Electrical Characteristics ........................................ 15 Data Retention and Endurance ..................................... 16 Capacitance .................................................................... 16 Thermal Resistance ........................................................ 16 AC Test Loads ................................................................ 17 AC Test Conditions ........................................................ 17 RTC Characteristics ....................................................... 17 AC Switching Characteristics ....................................... 18 SRAM Read Cycle .................................................... 18 SRAM Write Cycle ..................................................... 18 AutoStore/Power-Up RECALL ....................................... 21 Switching Waveforms – AutoStore/Power-up RECALL ....................................... 21 Software Controlled STORE and RECALL Cycle ........ 22 Hardware STORE Cycle ................................................. 23 Truth Table For SRAM Operations ................................ 24 Ordering Information ...................................................... 25 Ordering Code Definitions ......................................... 25 Package Diagrams .......................................................... 26 Acronyms ........................................................................ 28 Document Conventions ................................................. 28 Units of Measure ....................................................... 28 Document History Page ................................................. 29 Sales, Solutions, and Legal Information ...................... 34 Worldwide Sales and Design Support ....................... 34 Products .................................................................... 34 PSoC Solutions ......................................................... 34 |
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