Manuale d’uso / di manutenzione del prodotto CY7C09079V del fabbricante Cypress
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CY7C09079V/89V/99V CY7C09179V/89V/99V 3.3V 32K/64K/128K x 8/9 Synchronous Dual-Port S t atic RAM Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document #: 38-06043 Rev .
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 2 of 21 Functional Description The CY7C09079V/89V/99V a nd CY7C 09179V/89V/99V are high speed synchrono us CMOS 32K, 64K, and 128K x 8/9 dual-port static RAMs. T wo ports are provided, permitting independent, simultaneous access for reads and writes to any location in memory .
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 3 of 21 Pin Configurations (continued Figure 2. 100-Pin TQFP (T op View0 - CY7C09199V ( 128K x 9), CY7C09189 V (64K x 9),CY7C09.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 4 of 21 Notes 8. This pin is NC for CY7C09179V . 9. This pin is NC for CY7C09179V and CY7C09189V Selection Guide Description CY.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 5 of 21 Maximum Ratin gs Exceeding maximum ratings may impair the useful life of the device. These user guid elines are not tested. [10] S torage T emperature .............. ....
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 6 of 21 Figure 4. AC T est Loads (Applicable to -6 and -7 only) [13] Figure 5. Load Deratin g Curve Figure 3. AC T est Lo ads (a) Normal Load (Load 1) R1 = 590 Ω 3.3V OUTPUT R2 = 435 Ω C= 3 0 pF V TH =1 .
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 7 of 21 Notes 14. T est conditions used are Load 2. 15. This parameter is guaranteed by design, but it is not production teste d.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 8 of 21 Switching W aveforms (continued) Figure 6. Re ad Cycle fo r Flow-Throug h Output (FT /PIPE = V IL ) [16, 17, 18, 19] Notes 16. OE is asynchronously controlled; all other inp uts are synchrono us to the rising clock edg e.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 9 of 21 Figure 7. Read Cycle for Pipe lined Operat ion (FT /PIPE = V IH ) [16, 17, 18, 19] Figure 8.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 10 of 21 Figure 9. Lef t Port Write to Flow-Through Right Port Read [22, 23, 24, 25] Notes 20. In this depth expansion example, B1 re pr esents B ank #1 and B2 is Bank #2; Each Ba nk consist s of one Cypress dual-port device from this dat asheet.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 1 1 of 21 Figure 10. Pipeline d Read-to-W rite-t o-Read (OE = V IL ) [19, 26, 27, 2 8] Switching W aveforms (continued) t CYC2 .
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 12 of 21 Figure 1 1. Pipelined R ead-to-W rite-to-Read (OE Controlled) [19, 26, 27, 28] Notes 26. Output state (HIGH, LOW , or high-impedance) is determined by t he previous cycle con trol signals.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 13 of 21 Figure 12. Flow -Through Read-to-Write-to-Read (OE = V IL ) [17, 19, 26, 27, 28] Figure 13.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 14 of 21 Figure 14. Pipeli ned Read with Addre ss Counter Advance [29] Figure 15. Flow-Th rough Read with Add ress Counter Advance [29] Note 29. CE 0 and OE = V IL ; CE 1 , R/W and CNTRST = V IH .
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 15 of 21 Figure 16. W rite with Address Co unter Advance (Flow-Thro ugh or Pipelined O utput s) [30, 31] Notes 30.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 16 of 21 Figure 17. Counter Reset (Pip elined Output s) [19, 26, 32, 33] Notes 32. CE 0 = V IL ; CE 1 = V IH . 33. No dead c ycle exists durin g counter reset. A READ or WRITE cycle ma y be coincidental wit h the counter reset.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 17 of 21 T able 1. Read/Write and Enable Operation [34, 35, 36] Input s Ou tputs OE CLK CE 0 CE 1 R/W I/O 0 – I/O 9 Operatio .
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 18 of 21 Ordering Information 32K x8 3.3V Synchronous Du al-Port SRAM Spee d ( ns) Ordering Co de Package Name Package T ype Operating Range 6.5 [1] CY7C09079V -6AC A100 100-Pin Thin Quad Flat Pack Commercial 7.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 19 of 21 64K x9 3.3V Synchronous Du al-Port SRAM Speed (ns) Ordering Code Package Name Package T ype Operating Range 6.5 [1] CY7C09189V -6AC A100 100-Pin Thin Quad Flat Pack Commercial CY7C09189V -6AXC A100 100-Pin Pb-Free T hin Quad Flat Pack Commercial 7.
CY7C09079V/89V/99V CY7C09179V/89V/99V Document #: 38-06043 Rev . *C Page 20 of 21 Package Diagram Figure 18. 100-Pin Thin Plastic Quad Flat Pa ck (TQFP) A100 (51-8504 8) 51-85048-*B [+] Feedback.
Document #: 38-06043 Rev . *C Revised December 10, 2008 Page 21 of 21 All product s and company names ment ioned in thi s document may be the tra demarks of thei r respective h olders. CY7C09079V/89V/99V CY7C09179V/89V/99V © Cypress Semicondu ctor Corporati on, 2005-2008.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Cypress CY7C09079V è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Cypress CY7C09079V - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C09079V imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C09079V ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C09079V, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Cypress CY7C09079V.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Cypress CY7C09079V. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C09079V insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
