Instruction/ maintenance manual of the product CY7C199 Cypress
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32K x 8 Static RAM CY7C199 Cypress Semicondu ctor Corporatio n • 3901 North Fi rst Street • San Jose • CA 95134 • 408-943-2 600 Document #: 38-0516 0 Rev .
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 2 of 1 6 Maximum Ratings (Above w hi ch the useful l ife may be impaired. For user guide- lines, not tes ted .) Storage T emperature ............ ................. .... – 65 ° C to +150 ° C Ambient T emperat ure with Power Appli ed .
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 3 of 1 6 ] Electrica l Characteristics Ov er the Operating Range [3] (continu ed) 7C199 -20 7C199-25 7C199-35 7C199-4 5 Paramet er Description T est Cond itions Min. Max. Min. Ma x. Min. Ma x. Min. Ma x. Unit V OH Output HIGH Vo l t a g e V CC = Min.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 4 of 1 6 AC T est Loads and Wave forms [5] Data Retent ion Characterist ics Over the Oper ating R ange (L ve rsion only) Parameter De scription Co nditions [6 ] Min. Ma x. Unit V DR V CC for Da ta Retentio n 2.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 5 of 1 6 Switching Char acteristics Over th e Opera ting Rang e [3 , 7 ] 7C199-8 7C199-10 7C19 9-12 7C199-15 Unit Parameter Description Min.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 6 of 1 6 Switching Char acteristics Over th e Opera ting Rang e [3 ,7 ] (c ontinue d) 7C199- 20 7C199-25 7C199 -35 7C199-45 Param eter Descr ipt ion Min.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 7 of 1 6 Read Cy cle No. 2 [1 3, 14] Wr ite Cycle No. 1 (WE Co ntrolled) [1 0 , 15 , 16 ] Wr ite Cycle No. 2 (CE Con trolled) [10, 15, 16] Notes: 14. A ddres s vali d pri or to or coi nci dent w ith C E transit ion LOW .
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 8 of 1 6 Wr ite Cycle No. 3 (WE Co ntrolled OE LOW) [1 1, 16] T ypical DC and AC Cha racteristics Switching W aveforms (con tinued) DA T A I/O ADDRESS t HD t SD t LZWE t SA t HA t AW t WC CE WE t HZWE C199 – 12 DA T A IN VA L I D 1.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 9 of 1 6 T ruth T able CE WE OE Inputs/Outp uts Mode Power H X X High Z Deselect/Po wer-Down Standby (I SB ) L H L Data Out Read Active (I CC ) L L X Data .
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 10 of 16 15 CY7 C199-15PC P21 28-Lead (300-Mil ) Molded D IP Commerc ial CY7C199 -15VC V21 28-Lead Molded SOJ CY7C 199 -15Z C Z28 28-Lead Thin Sma ll Ou tl.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 1 1 of 16 MILI T ARY SP ECIFI CA TIO NS Group A Subgroup T esting DC Characteristi cs Parameter Subg roups V OH 1, 2, 3 V OL 1, 2, 3 V IH 1, 2, 3 V IL Max.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 12 of 16 Package Diagrams 28-Lead (300-M il) CerDIP D22 MIL-STD-1835 D-15 Config. A 51- 8003 2.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 13 of 16 Package Diagrams (c ontinued) 28-P in Rectang ular Leadless Chip Carr ier L54 MIL-STD-1835 C-11A 51-80067 51-85014-B 28-Lead ( 300-Mil) Mo lded DI.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 14 of 16 Package Diagrams (c ontinued) 28-Lead (30 0-Mil) Molde d SOIC S21 51-85026-A 28-Lead (300-Mi l) Molded SO J V21 51-85031-B.
CY7C199 Docu ment #: 38 - 051 60 Re v . ** Page 15 o f 16 © Cypress Semicondu ctor Corporati on, 2001. The info rmation contained h erein is subject to ch ange without no tice. Cypress Semico nductor Corporation assumes no responsibility for the use of any circui try other than circuitry embodie d in a Cypress S emiconductor pr oduct.
CY7C199 Docum ent #: 38 -05160 Rev . ** Page 16 of 16 Documen t Title: C Y7C199 32 K x 8 Stati c RAM Documen t Number: 3 8-05160 REV . ECN NO. Issue Date Orig.
An important point after buying a device Cypress CY7C199 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of Cypress CY7C199, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cypress CY7C199.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress CY7C199. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress CY7C199 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
