Manuale d’uso / di manutenzione del prodotto CY7C1141V18 del fabbricante Cypress
Vai alla pagina of 28
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 18-Mbit QDR™-II+ SRAM 4-W ord Burst Architecture (2.0 Cycle Read Latency) Cypress Semiconductor Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-06583 Rev .
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 2 of 28 Logic Block Diagram (CY7C1 141V18) Logic Block Diagram (CY7C1 156V18) 512K x 8 Array CLK A (18:0) Gen. K K Control Logic Address Register D [7:0] Read Add.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 3 of 28 Logic Block Diagram (CY7C1 143V18) Logic Block Diagram (CY7C1 145V18) 256K x 18 Array CLK A (17:0) Gen. K K Control Logic Address Register D [17:0] Read Add.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 4 of 28 Pin Configur ations CY7C1 141V18 (2M x 8) 165-Ball FBGA (13 x 15 x 1.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 5 of 28 Pin Configur ations (continued) CY7C1 143V18 (1M x 18) 165-Ball FBGA (13 x 15 x 1.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 6 of 28 Pin Definitions Pin Name IO Pin Description D [x:0] Input- Synchronous Data Inpu t Signals. Sampled on the rising edge of K and K clocks during valid write operations.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 7 of 28 CQ Echo Clock Synchronous Echo Clock Outputs . This is a free running clock and is synchronized to the input clock (K ) of the QDR-II+. The timings for the echo clocks are shown in the “Switching Characteristics” on page 23.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 8 of 28 Functional Overview The CY7C1 141V18, CY7C1 156V18, CY7C1 143V18, and CY7C1 145V18 are synchronous pipelined Burst SRAMs equipped with both a read port and a write port.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 9 of 28 Depth Exp ansion The CY7C1 143V18 has a Port Select input for each port. This enables easy depth expansion. Both Port Selec ts are sampled on the rising edge of the Positive Input Cl ock only (K).
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 10 of 28 Application Example Figure 1 shows the four QDR-II+ used in an application. Figure 1. Appliation Example T rut h T able The truth table for the CY7C1 141V18, CY7C1 156V18, CY7C1 143V18, and CY7C1 145V18 follows.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 1 1 of 28 W rite Cyc le Descriptions The write cycle descriptions of CY7C1 141V18 and CY7C1 143V18 follows.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 12 of 28 The write cycle descriptions of CY7C1 145V18 follows. [2, 10] BWS 0 BWS 1 BWS 2 BWS 3 K K Comments LLLL L – H – D u r i n g t h e d a t a p o r t i o n o f a w r i t e s equence, all four bytes (D [35:0] ) are written into the device.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 13 of 28 IEEE 1 149.1 Serial Boundary Scan (JT AG) These SRAMs incorporate a serial boundary scan test access port (T AP) in the FBGA package. This part is fully compliant with IEEE S t andard #1 149.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 14 of 28 IDCODE The IDCODE instruction causes a vendor-specific 32-bit code to be loaded into the instruction register .
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 15 of 28 T AP Controller S t ate Diagram Figure 2. T ap Controller St ate Diagram [1 1] TEST -LOGIC RESET.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 16 of 28 T AP Controller Block Diagram Figure 3. T ap Controller Block Diagram T AP Electrical Charac teristics The T ap Electrical Characteristics table over the operating range follows.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 17 of 28 T AP AC Switching Characteristics The T ap AC Switching Characteristics over the operating range follows.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 18 of 28 Identification Register Definitions Instruction Field Va l u e Description CY7C1 141V18 CY7 C1 156V18 CY7C1 143V18 CY7C1 145V18 Revision Number (31:29) 000 000 000 000 V ersion number .
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 19 of 28 Boundary Scan Order Bit # Bump ID Bit # Bump ID Bit # Bump ID Bit # Bump ID 0 6R 27 1 1H 54 7B 8.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 20 of 28 Power Up Sequence in QDR-II+ SRAM During Power Up, when the DOFF is tied HIGH, the DLL gets locked after 2048 cycles of stable clock. QDR-II+ SRAMs must be powered up and initialized in a predefined manner to prevent undefined operations.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 21 of 28 Maximum Ratings Exceeding maximum ratings may shorten the useful life of the device. User guidelines are not tested. S torage T emperature ........
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 22 of 28 Cap acit ance T ested initially and after any design or process change that may affect these p arameters. Parameter Description T est Conditions Max Unit C IN Input Capacitance T A = 25 ° C, f = 1 MHz, V DD = 1.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 23 of 28 Switching Characteristics Over the operating range [22, 23] Cypress Parameter Consortium Paramet.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 24 of 28 Switching W aveforms Read/Write/Deselect Sequence Figure 7.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 25 of 28 Ordering Information Not all of the speed, package and temperature ranges are available. Contact your local sales repres entative or visit www .cypress.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 26 of 28 300 CY7C1 141V18-300BZC 51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Commercial CY7C1 156V18-300BZC CY7C1 143V18-300BZC CY7C1 145V18-300BZC CY7C1 141V18-300BZXC 51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.
CY7C1 141V18, CY7C1 156V18 CY7C1 143V18, CY7C1 145V18 Document Number: 001-06583 Rev . *D Page 27 of 28 Package Diagram Figure 8. 165-Ball FBGA (13 x 15 x 1.4 mm), 51-85180 A 1 PIN 1 CORNER 15.00±0.10 13.00±0.10 7.00 1.00 Ø0.50 (165X) Ø0.25 M C A B Ø0.
Document Number: 001-06583 Rev . *D Revised March 06, 2008 Page 28 of 28 QDR™ is a tradema rk of Cypress Semiconductor Corp. QDR RAMs and Quad Data Rate R AMs comprise a new famil y of products developed by Cypress, IDT , NEC, Renesas, and Samsung.
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 CY7C1141V18 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 CY7C1141V18 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C1141V18 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C1141V18 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C1141V18, 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 CY7C1141V18.
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 CY7C1141V18. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C1141V18 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.
