Manuale d’uso / di manutenzione del prodotto CY7C0832BV del fabbricante Cypress
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FLEx18™ 3.3V 64K/128K x 36 and 128K/256K x 18 Synchr onous Dual-Port RAM CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Cypress Semiconducto r Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document #: 38-06059 Rev .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 2 of 28 Logic Block Diagram [2] A 0L –A 18L CLK L ADS L CNTEN L CNTRST L Tr u e RAM Array 19 Addr .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 3 of 28 Pin Configurations Figure 1. 144-Ball BGA (T op View) CY7C0837A V / CY7C0830A V / C.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 4 of 28 Figure 2. 120-Pin Thin Quad Flat Pack (TQFP) (T op View) CY7C0830A V / CY7C0831A V .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 5 of 28 Pin Definitions Lef t Port Right Port Description A 0L –A 18L [2] A 0R –A 18R [2] Address Inputs . ADS L [8] ADS R [8] Address Strobe Input .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 6 of 28 Master Reset The FLEx18 family devices und ergo a complete reset by taking its MRST input LOW . The MRST input can switch asynchro- nously to the clocks.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 7 of 28 Counter Reset Oper ation All unmasked bits of the counter are reset to ‘0.’ All maske d bits remain unchanged. The mirror register is loaded with the valu e of the burst counter .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 8 of 28 Retransmit Retransmit is a feature that allows the Re ad of a block of memory more than once without the nee d to reload the initial a ddress.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 9 of 28 Figure 3. Counter , Mask, and Mirr or Logic Block Diagram [1] From Mask Register Mi.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 10 of 28 IEEE 1 149.1 Serial Boun dary Scan (JT AG) [21] The FLEx18 family devices inco rporate an IEEE 1 149.1 serial boundary scan test access port (T AP).
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 1 1 of 28 Figure 5. Scan Chain for 9 Mb Device T a ble 4. Identification Register Definitions Instruction Field Va l u e Descriptio n Revision Number (31:2 8) 0h Reserved for version number .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 12 of 28 Maximum Ratings Exceeding maximum ratings [23] may impair the useful life of the device. These user guidelines are not teste d. S torage T emperature .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 13 of 28 Figure 6. AC T est Load and Waveforms Switching Characteristics Over the Operating.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 14 of 28 t HCM CNT/MSK Hold T ime 0.6 0.6 NA NA ns t OE Output Enable to Data V alid 4.0 4.4 4.7 5.0 ns t OLZ [28,29] OE to Low Z 0 0 ns t OHZ [28,29] OE to High Z 0 4.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 15 of 28 JT AG Timing and Switching W aveforms Parameter Description CY7C0837A V/CY7C0830A .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 16 of 28 Switching W aveforms Figure 8. Master Re set Figure 9.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 17 of 28 Figure 10. Bank Select Read [34, 35] Figure 1 1 .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 18 of 28 Figure 12. Read-to-Write-to-Read (OE Controlled) [33, 36, 38, 39 ] Figure 13.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 19 of 28 Figure 14. Write with Address Counter Advan ce [39] Figure 15.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 20 of 28 Figure 16. Readback State of Address Counter or Mask Reg ister [43, 44, 45, 46 ] S.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 21 of 28 Figure 17. Lef t_Port (L_Port) Wr ite to Right_Port (R_Port) Read [47, 48, 49] Swi.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 22 of 28 Figure 18. Counter Interrupt and Retran smit [15, 42, 50, 51 , 52, 53] Switching W.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 23 of 28 Figure 19. MailBox Interrupt Timing [54, 55, 56, 57, 58] T a ble 7.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 24 of 28 Ordering Information 512K × 18 (9M) 3.3V Synchronous CY7C08 33A V Dual-Port SRAM Spee d (MHz) Ordering Code Package Diagram Package T ype Operating Range 133 CY7C0833A V-133BBC 51-85141 144-Ball Grid Ar r ay (13 x 13 x 1.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 25 of 28 32K × 18 (512K) 3.3V Synchronous CY7C0837A V Dual-Port SRAM Spee d (MHz) Ordering Code Package Diagram Package T ype Operating Range 167 C Y 7C08 37A V-167BBC 51-85141 144-Ball Grid Array (13 x 13 x 1.
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 26 of 28 Figure 21. 120-Pin Thin Quad Flatp ack (14 x 14 x 1 .
CY7C0837A V, CY7C0830A V CY7C0831A V, CY7C0832A V CY7C0832BV, CY7C0833A V Document #: 38-06059 Rev . *S Page 27 of 28 Document History Page Document Title: CY7C0837A V/CY7C0 830 A V/CY7C0831A V/CY7C0832A V/CY7C0832BV/CY7C 0833A V, FLEx18™ 3.3V 64K/128K x 36 and 128K/256K x 18 Synchronous Dual-Port RAM Document Number: 38-06059 Rev .
Document #: 38-06059 Rev . *S Revised March 03, 2009 Page 28 of 28 FLEx18 is a tr ademark of Cypress Semiconductor Co rporation. Al l product and co mpany names me ntioned in this document may be the tradem arks of th ei r respec tive holder s.
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 CY7C0832BV 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 CY7C0832BV - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C0832BV imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C0832BV ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C0832BV, 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 CY7C0832BV.
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 CY7C0832BV. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C0832BV 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.
