Cypress Semiconductor STK12C68-5 Manuel d'utilisateur

STK12C68-5 (SMD5962-94599)64 Kbit (8K x 8) AutoStore nvSRAMCypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 10 of 18SRAM Write CycleParameterDescription35 ns 55 ns UnitMin Max Min MaxCypressP

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 11 of 18AutoStore or Power Up RECALLParameter Alt DescriptionSTK12C68-5UnitMin MaxtH

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 12 of 18Software Controlled STORE/RECALL CycleThe software controlled STORE/RECALL c

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 13 of 18Hardware STORE CycleParameter Alt DescriptionSTK12C68-5UnitMin MaxtSTORE [9,

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 14 of 18Speed:35 - 35 ns55 - 55 nsPackage:C = Ceramic 28-pin 300 mil DIP (gold lead

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 15 of 18Ordering InformationSpeed (ns) Ordering Code Package Diagram Package Type Op

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 16 of 18Package DiagramsFigure 15. 28-Pin (300-Mil) Side Braze DIL (001-51695)001-5

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 17 of 18Figure 16. 28-Pad (350-Mil) LCC (001-51696)Package Diagrams (continued)1. A

Document Number: 001-51026 Rev. ** Revised March 02, 2009 Page 18 of 18AutoStore and QuantumTrap are registered trademarks of Cypress Semiconductor Co

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 2 of 18PinoutsPin DefinitionsPin Name Alt IO Type DescriptionA0–A12Input Address Inp

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 3 of 18Device OperationThe STK12C68-5 nvSRAM is made up of two functional compo-nent

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 4 of 18Figure 4. AutoStore Inhibit ModeIf the power supply drops faster than 20 us/

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 5 of 184. Read address 0x1FFF, Valid READ5. Read address 0x10F0, Valid READ6. Read a

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 6 of 18Best PracticesnvSRAM products have been used effectively for over 15years. Wh

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 7 of 18Maximum RatingsExceeding maximum ratings may shorten the useful life of thede

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 8 of 18Data Retention and EnduranceParameter Description Min UnitDATARData Retention

STK12C68-5 (SMD5962-94599)Document Number: 001-51026 Rev. ** Page 9 of 18AC Switching Characteristics SRAM Read CycleParameterDescription35 ns 55 ns