Cypress CY14E256L Bedienungsanleitung

CY14E256L256 Kbit (32K x 8) nvSRAMCypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600Document Number: 001-0

CY14E256LDocument Number: 001-06968 Rev. *H Page 10 of 19AC Switching Characteristics SRAM Read CycleParameterDescription25 ns 35 ns 45 ns UnitMin M

CY14E256LDocument Number: 001-06968 Rev. *H Page 11 of 19SRAM Write CycleParameterDescription25 ns 35 ns 45 ns UnitMin Max Min Max Min MaxCypressPar

CY14E256LDocument Number: 001-06968 Rev. *H Page 12 of 19AutoStore or Power Up RECALLParameter Alt DescriptionCY14E256LUnitMin MaxtHRECALL [15]tRESTOR

CY14E256LDocument Number: 001-06968 Rev. *H Page 13 of 19Software Controlled STORE/RECALL CycleThe software controlled STORE/RECALL cycle follows. [19

CY14E256LDocument Number: 001-06968 Rev. *H Page 14 of 19Hardware STORE CycleParameter Alt DescriptionCY14E256LUnitMin MaxtDHSB [16, 20]tRECOVER, tHHQ

CY14E256LDocument Number: 001-06968 Rev. *H Page 15 of 19Ordering InformationThese parts are not recommended for new designs.Speed(ns)Ordering Code Pa

CY14E256LDocument Number: 001-06968 Rev. *H Page 16 of 19Package DiagramFigure 14. 32-Pin (300 Mil) SOIC (51-85127)51-85058 *APIN 1 IDSEATING PLANE11

CY14E256LDocument Number: 001-06968 Rev. *H Page 17 of 19Figure 15. 32-Pin (300 Mil) CDIP (001-51694)Package Diagram (continued)001-51694 **Not Recom

CY14E256LDocument Number: 001-06968 Rev. *H Page 18 of 19Document History PageDocument Title: CY14E256L 256 Kbit (32K x 8) nvSRAM Document Number: 001

Document Number: 001-06968 Rev. *H Revised November 26, 2009 Page 19 of 19All products and company names mentioned in this document may be the tradema

CY14E256LDocument Number: 001-06968 Rev. *H Page 2 of 19ContentsFeatures ...

CY14E256LDocument Number: 001-06968 Rev. *H Page 3 of 19 Pin ConfigurationsFigure 1. Pin Diagram: 32-Pin SOIC/DIPTable 1. Pin DefinitionsPin Name Al

CY14E256LDocument Number: 001-06968 Rev. *H Page 4 of 19Device OperationThe CY14E256L nvSRAM is made up of two functional compo-nents paired in the sa

CY14E256LDocument Number: 001-06968 Rev. *H Page 5 of 19Hardware STORE (HSB) OperationThe CY14E256L provides the HSB pin for controlling andacknowledg

CY14E256LDocument Number: 001-06968 Rev. *H Page 6 of 19Data ProtectionThe CY14E256L protects data from corruption during lowvoltage conditions by inh

CY14E256LDocument Number: 001-06968 Rev. *H Page 7 of 19Best Practices nvSRAM products have been used effectively for over 15 years.While ease of use

CY14E256LDocument Number: 001-06968 Rev. *H Page 8 of 19Maximum RatingsExceeding maximum ratings may shorten the useful life of thedevice. These user

CY14E256LDocument Number: 001-06968 Rev. *H Page 9 of 19VOHOutput HIGH Voltage IOUT = –4 mA 2.4 VVOLOutput LOW Voltage IOUT = 8 mA 0.4 VVBLLogic ‘0’