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CY14ME064Q2A-SXI Datasheet(PDF) 2 Page - Cypress Semiconductor |
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CY14ME064Q2A-SXI Datasheet(HTML) 2 Page - Cypress Semiconductor |
2 / 29 page CY14MC256J CY14MB256J, CY14ME256J Document #: 001-65233 Rev. *B Page 2 of 31 Contents Pinouts .............................................................................. 3 Pin Definitions .................................................................. 3 I2C Interface ...................................................................... 4 Protocol Overview ............................................................ 4 I2C Protocol – Data Transfer ....................................... 4 Data Validity ...................................................................... 5 START Condition (S) ........................................................ 5 STOP Condition (P) .......................................................... 5 Repeated START (Sr) ....................................................... 5 Byte Format ....................................................................... 5 Acknowledge / No-acknowledge ..................................... 5 High Speed Mode (Hs-mode) ........................................... 6 Serial Data Format in Hs-mode ................................... 6 Slave Device Address ...................................................... 7 Memory Slave Device ................................................. 7 Control Registers Slave Device ................................... 7 Memory Control Register ............................................ 8 Command Register ..................................................... 8 Write Protection (WP) ....................................................... 9 AutoStore Operation ........................................................ 9 Hardware STORE and HSB pin Operation ..................... 9 Hardware RECALL (Power-Up) .................................. 9 Write Operation ............................................................... 10 Read Operation ............................................................... 10 Memory Slave Access .................................................... 10 Write nvSRAM ........................................................... 10 Current nvSRAM Read .............................................. 12 Random Address Read ............................................. 13 Control Registers Slave ................................................. 14 Write Control Registers ................................................. 14 Current Control Registers Read ................................ 15 Random Control Registers Read .............................. 15 Serial Number ................................................................. 16 Serial Number Write .................................................. 16 Serial Number Lock ................................................... 16 Serial Number Read .................................................. 16 Device ID Read ......................................................... 17 Executing Commands Using Command Register ....... 17 Best Practices ................................................................. 18 Maximum Ratings ........................................................... 19 Operating Range ............................................................. 19 DC Electrical Characteristics ........................................ 19 Data Retention and Endurance ..................................... 20 Thermal Resistance ........................................................ 20 AC Test Conditions ........................................................ 21 AC Switching Characteristics ....................................... 22 nvSRAM Specifications ................................................. 23 Software Controlled STORE/RECALL Cycles .............. 24 Hardware STORE Cycle ................................................. 25 Ordering Information ...................................................... 26 Ordering Code Definitions ......................................... 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 |
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