Instruction/ maintenance manual of the product 7C185-25 Cypress
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8K x 8 S tatic RAM CY7C185 Cypress Semicondu ctor Corporatio n • 3901 North Fi rst S treet • San Jo se • CA 95134 • 408-943-26 00 Document #: 38-0504 3 Rev .
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 2 of 1 1 Maximum Ratings (Abo ve wh ich th e use ful l ife may be i mpair ed. F or use r gui de- lines, not tes ted .) S torage T emp erature ............ ........... .......... – 65 ° C to +150 ° C Ambient T emperat ure with Power Appli ed .
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 3 of 1 1 Electrica l Characteristics O ver the O perating Ra nge (conti nued) 7C185-25 7C18 5-35 Parameter De sc ript ion T est Conditions Min. Max. Min. Ma x. Uni t V OH Output HIGH V oltage V CC = Min., I OH = – 4.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 4 of 1 1 Switching Char acteristics Over the O perating Range [6] 7C185-1 5 7C185-20 7C 185-25 7C185 -35 Parameter D escription Min.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 5 of 1 1 Switching W aveforms 10. Device is con tinuously selected. OE , CE 1 = V IL . CE 2 = V IH . 11 . W E is HIGH for rea d cycle. 12. Dat a I/O is Hig h Z if O E = V IH , CE 1 = V IH , W E = V IL , or CE 2 =V IL .
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 6 of 1 1 Notes: 15. The min imum write c ycle time for write cycle #3 (WE controlled, OE LOW) is the sum of t HZWE and t SD . 16. If CE 1 goes HIGH or CE 2 goes LOW si multaneousl y with WE H IGH, the ou tput re mains in a high-i mpedance state.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 7 of 1 1 T ypical DC and AC Cha racteristics – 55 25 125 1.2 1.0 0.8 OUTPUT SOURCE CURRENT (mA) AMBI EN T TE MPERA TURE ( ° C) 0.6 0.4 0.2 0.0 NORMALIZED I, I CC I SB V CC =5. 0V V IN =5.0V I CC SB 1.2 1.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 8 of 1 1 T ruth T able CE 1 CE 2 WE OE Input/Output Mode H X X X High Z Deselect/Power-Down X L X X High Z Deselect/Power-Down L H H L Dat a Out Read L H L.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 9 of 1 1 Package Diagrams 51-85014-* B 28-Lead ( 300-Mil) Mo lded DIP P21 28-Lead (30 0-Mil) Molde d SOIC S21 51-85026-*A.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 10 of 1 1 © Cypress Semico nductor Corporati on, 2002. The information cont ained herein is su bject to change witho ut notice. Cypress S emico nductor Cor poration assumes no r esponsibility for the use of any ci rcuitry other th an circuitry embod ied in a Cypr ess Semiconductor pr oduct.
CY7C185 Docum ent #: 38 -05043 Rev . *A Page 1 1 of 1 1 Document Histor y Page Documen t Title: C Y7C185 8K x 8 S t atic RAM Documen t Number: 3 8-05043 REV .
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