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FM3164 Datasheet(PDF) 3 Page - Cypress Semiconductor |
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FM3164 Datasheet(HTML) 3 Page - Cypress Semiconductor |
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3 / 33 page  FM3164/FM31256 Document Number: 001-86391 Rev. *C Page 3 of 33 Contents Pinout ................................................................................ 4 Pin Definitions .................................................................. 4 Overview............................................................................ 5 Memory Architecture ................................................... 5 Processor Companion ..................................................... 5 Processor Supervisor .................................................. 5 Manual Reset .............................................................. 6 Reset Flags ................................................................. 6 Early Power Fail Comparator ...................................... 6 Event Counter ............................................................. 7 Serial Number ............................................................. 7 Real-time Clock Operation............................................... 7 Backup Power ............................................................. 8 Trickle Charger............................................................ 8 Calibration ................................................................... 9 Crystal Oscillator ......................................................... 9 Layout Recommendations............................................. 10 Register Map ................................................................... 13 I2C Interface .................................................................... 19 STOP Condition (P)................................................... 19 START Condition (S)................................................. 19 Data/Address Transfer .............................................. 19 Acknowledge / No-acknowledge ............................... 19 Slave Address ........................................................... 20 Addressing Overview - Memory ................................ 20 Addressing Overview - RTC & Companion ............... 20 Data Transfer ............................................................ 20 Memory Operation.......................................................... 21 Memory Write Operation ........................................... 21 Memory Read Operation ........................................... 21 RTC/Companion Write Operation ............................. 23 RTC/Companion Read Operation ............................. 23 Addressing FRAM Array in the FM3164/FM31256 Family........................................................................ 23 Maximum Ratings........................................................... 24 Operating Range............................................................. 24 DC Electrical Characteristics ........................................ 24 Data Retention and Endurance ..................................... 26 Capacitance .................................................................... 26 Thermal Resistance........................................................ 26 AC Test Loads and Waveforms..................................... 26 AC Test Conditions ................................................... 26 Supervisor Timing .......................................................... 27 AC Switching Characteristics ....................................... 28 Ordering Information...................................................... 29 Ordering Code Definitions ......................................... 29 Package Diagram............................................................ 30 Acronyms ........................................................................ 31 Document Conventions ................................................. 31 Units of Measure ....................................................... 31 Document History Page ................................................. 32 Sales, Solutions, and Legal Information ...................... 33 Worldwide Sales and Design Support....................... 33 Products .................................................................... 33 PSoC® Solutions ...................................................... 33 Cypress Developer Community................................. 33 Technical Support ..................................................... 33 |
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