Manuale d’uso / di manutenzione del prodotto CY7C0851AV del fabbricante Cypress
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FLEx36™ 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1 709 • 408-943-2600 Document #: 38-06070 Rev .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 2 of 32 Logic Block Diagram [1] A 0L –A 17L CLK L ADS L CNTEN L CNTRST L Tr u e RAM Array 18 Addr .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 3 of 32 Pin Configurations Figure 1. 172-Ball BGA (T op View) 1 23456789 1 0 1 1 1 2 1 3 1 4 A DQ32L DQ30L CNTINTL .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 4 of 32 Figure 2. 172-Ball BGA (T op View) Pin Configurations (continued) 123456789 1 0 1 1 1 2 1 3 1 4 A DQ32L DQ3.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 5 of 32 Figure 3. 176-Pin Th in Quad Flat Pack (TQ FP) (T op View) Pin Configurations (continued) 132 131 130 129 1.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 6 of 32 Pin Definitions Lef t Port Right Port Description A 0L –A 17L [1 ] A 0R –A 17R [1] Address Inputs . ADS L [3] ADS R [3] Address Strobe Input . Used as an address qua lifier .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 7 of 32 Master Reset The FLEx36 family devices und ergo a complete reset by taking its MRST input LOW .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 8 of 32 Address Counter and Mask Register Operations This section [10] describes the features only apply to CY7C0850A V/CY7C0851A V/CY7C0852A V devices, but not to the CY7C0853A V device.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 9 of 32 Counter Interrupt The counter interrupt (CNTINT ) is asserted LOW when an increment operation results in the unmasked portion of the counter register being a ll “1s.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 10 of 32 Figure 4. Counter , Mask, and Mirror Logic Blo ck Diagram [1] From Mask Register Mirror Counter Address De.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 1 1 of 32 Figure 5. Programmable Co unter-Mask Registe r Operation [1, 12] 2 16 2 15 2 6 2 1 2 5 2 2 2 4 2 3 2 0 2 .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 12 of 32 IEEE 1 149.1 Serial Boundary Scan (JT AG) [13] Th e CY7C0850A V/CY7C0851A V/CY7C0852A V/CY7C0853A V incorporates an IEEE 1 149.1 serial boundary scan test access port (T AP).
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 13 of 32 Maximum Ratings Exceeding maximum ratings [15] may impair the useful life of the device. These user guidelines are not teste d. S torage T emperature .......
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 14 of 32 Figure 6. AC T est Load and Waveforms Switching Characteristics Over the Operating Range Parameter Descrip.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 15 of 32 t OE Output Enable to Data V alid 4.0 4.4 4.7 5.0 ns t OLZ [20, 21] OE to Low Z 0 0 0 0 ns t OHZ [20, 21] OE t o H i g h Z 04 . 004 . 404 . 705 . 0 n s t CD2 Clock to Data V alid 4.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 16 of 32 JT AG Timing Parameter Description 167/133 /100 Unit Min Max f JT AG Maximum JT AG T AP Controller Freque .
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 17 of 32 Switching W aveforms Figure 8. Master Rese t Figure 9. Read Cycle [4, 22, 23, 24, 25] MRST t RSR t RS INAC.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 18 of 32 Figure 10. Bank Select Read [26, 27] Figure 1 1 . Read -to-Write-to-Read (OE = LOW) [25, 28, 29, 30, 31] S.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 19 of 32 Figure 12. Read -to-Write-to-Read (OE Cont rolled) [2 5, 28, 30, 31] Figure 13.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 20 of 32 Figure 14. W rite with Addre ss Counter Advance [31] Figure 15.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 21 of 32 Figure 16. Disabled-to-Wri te-to-Read-to-W rite-to-Read Figure 17.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 22 of 32 Figure 18. Read-to-Readback -to-Read-to-Read (R/W = HIGH) Switching W aveforms (continued) CLK ADS ADDRESS.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 23 of 32 Figure 19. Co unter Reset [32, 3 3] Switching W aveforms (continued) CLK ADDRESS INTERNAL CNTEN ADS DATA I.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 24 of 32 Figure 20. Readback St ate of Address Counter or Mask Register [35, 36, 37, 38] Switching W aveforms (cont.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 25 of 32 Figure 21. Lef t_Port (L _Port) W r ite to Right_Port (R_Port) Read [39, 40, 41 ] Switching W aveforms (co.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 26 of 32 Figure 22. Counter In terrupt and Retransmit [34, 42, 43, 44, 45] Switching W aveforms (continued) t CH2 t.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 27 of 32 Figure 23. MailBox In terrupt T iming [46, 47, 48, 49, 50] T able 7.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 28 of 32 Ordering Information 256K × 36 (9M) 3.3V Synchronous CY7C0853A V Dual-Port SRAM Spee d (MHz) Ordering Code Package Diagram Package T ype Operating Range 133 CY7C0853A V-133BBC 51-851 14 172-Ball Grid Array (15 x 15 x 1.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 29 of 32 Package Diagrams Figure 24. 172-Ball FBGA (15 x 15 x 1.25 mm) (51-85114 ) 51-85114-*B [+] Feedback.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 30 of 32 Figure 25. 176-Pin Thin Quad Flat Pack (24 × 24 × 1.4 mm) (51-85132) Package Diagrams 51-85132-** [+] Fe.
CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V Document #: 38-06070 Rev . *H Page 31 of 32 Document History Page Document Title: CY7C0850A V/CY7C0851A V/CY7C0852A V/CY7C0853A V, FLEx36™ 3.3V 32K/64K/12 8K/256K x 36 Synchronous Dual-Po rt RAM Document Number: 38-06070 REV .
Document #: 38-06070 Rev . *H Revised July 29, 2008 Page 32 of 32 FLEx36 is a trade mark of Cypr ess Semiconductor Corporatio n. All product and compa ny names mentio ned in this docum ent may be th e tradem arks of thei r respec tive hold ers. CY7C0850A V, CY7C0851A V CY7C0852A V, CY7C0853A V © Cypress Sem iconductor Corp oration, 200 3-2008.
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 CY7C0851AV 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 CY7C0851AV - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C0851AV imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C0851AV ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C0851AV, 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 CY7C0851AV.
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 CY7C0851AV. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C0851AV 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.
