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CY14B256LA-SZ45XIT Datasheet(PDF) 2 Page - Cypress Semiconductor |
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CY14B256LA-SZ45XIT Datasheet(HTML) 2 Page - Cypress Semiconductor |
2 / 22 page CY14B256LA Document Number: 001-54707 Rev. *I Page 2 of 22 Contents Pinouts .............................................................................. 3 Pin Definitions .................................................................. 4 Device Operation .............................................................. 5 SRAM Read ................................................................ 5 SRAM Write ................................................................. 5 AutoStore Operation .................................................... 5 Hardware STORE Operation ....................................... 5 Hardware RECALL (Power-Up) .................................. 6 Software STORE ......................................................... 6 Software RECALL ....................................................... 6 Preventing AutoStore .................................................. 7 Data Protection ............................................................ 7 Maximum Ratings ............................................................. 8 Operating Range ............................................................... 8 DC Electrical Characteristics .......................................... 8 Data Retention and Endurance ....................................... 9 Capacitance ...................................................................... 9 Thermal Resistance .......................................................... 9 AC Test Loads ................................................................ 10 AC Test Conditions ........................................................ 10 AC Switching Characteristics ....................................... 11 Switching Waveforms .................................................... 11 AutoStore/Power-Up RECALL ....................................... 13 Switching Waveforms .................................................... 13 Software Controlled STORE/RECALL Cycle ................ 14 Switching Waveforms .................................................... 14 Hardware STORE Cycle ................................................. 15 Switching Waveforms .................................................... 15 Truth Table For SRAM Operations ................................ 16 Ordering Information ...................................................... 16 Ordering Code Definitions ......................................... 16 Package Diagrams .......................................................... 17 Acronyms ........................................................................ 20 Document Conventions ................................................. 20 Units of Measure ....................................................... 20 Document History Page ................................................. 21 Sales, Solutions, and Legal Information ...................... 22 Worldwide Sales and Design Support ....................... 22 Products .................................................................... 22 PSoC Solutions ......................................................... 22 |
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