Manuale d’uso / di manutenzione del prodotto CY7C1354CV25 del fabbricante Cypress
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9-Mbit (256K x 36/512K x 18) Pi p elined SRAM with NoBL™ Architecture CY7C1354CV25 CY7C1356CV25 Cypress Semiconductor Corpora tion • 198 Champion Cou rt • San Jose , CA 95134-1 709 • 408-943-2 600 Document #: 38-05537 Rev .
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 2 of 28 A0, A1, A C MODE BW a BW b WE CE1 CE2 CE3 OE READ LOGIC DQs DQP a DQP b D A T A S T E E R I N G O U T P U T B U F F E R S MEMORY AR.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 3 of 28 Pin Configurations A A A A A 1 A 0 V SS V DD A A A A A A V DDQ V SS DQb DQb DQb V SS V DDQ DQb DQb V SS NC V DD DQa DQa V DDQ V SS .
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 4 of 28 Pin Configurations (continued) 234 5 6 7 1 A B C D E F G H J K L M N P R T U DQ a V DDQ NC/576 M NC/1G DQ c DQ d DQ c DQ d AA A A N.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 5 of 28 Pin Configurations (continued) 23 4 567 1 A B C D E F G H J K L M N P R TDO NC/576M NC/1G DQP c DQ c DQP d NC DQ d A CE 1 BW b CE 3.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 6 of 28 Pin Definitions Pin Name I/O T ype Pin Description A0 A1 A Input- Synchronous Address Input s used to select one of the address loc atio ns . Sampled at the rising edge of the CLK. BW a, BW b, BW c, BW d, Input- Synchronous Byte Write Select Input s, active LOW .
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 7 of 28 Functional Overview The CY7C1354CV25 and CY7C1 356CV25 are synchronous-pipel ined Burst NoBL SRAMs designed specifi- cally to eliminate wait states during Write/Read transitions. All synchronous inp uts pass through input registers controlled by the rising edge of the clock.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 8 of 28 order to greatly simplify Read/Modi fy/Write sequences, which can be reduced to simpl e Byte Write operations. Because the CY7C1354CV25 and CY7C 1356CV25 are common I/O devices, data should not be driven into the device while the outputs are active.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 9 of 28 NOP/WRITE ABORT (Begin Burs t) None L L L L H X L L-H T ri-S tate WRITE ABORT (Continue Burst) Next X L H X H X L L-H T ri-S tate I.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 10 of 28 IEEE 1 149.1 Serial Boundary Scan (JT AG) The CY7C1354CV25/CY7C1356 CV 25 incorporates a serial boundary scan test access port (T AP) in the BGA package only . The TQFP package does not offer this functionality .
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 1 1 of 28 It is also loaded with the IDCODE instruction if the con troller is placed in a re set state as described in the previous section.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 12 of 28 TA P T i m i n g T AP AC Switching Characteristics Over the Operating Range [1 1, 12] Parameter Description Min.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 13 of 28 2.5V T AP AC T est Conditions Input pulse levels .. ......... ...... ........... ........... ........ V SS to 2.5V Input rise and fall time .......... .............. ........... ...
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 14 of 28 Boundary Scan Exit Order (256K × 36) Bit # 1 19-ball ID 165-ball ID 1K 4 B 6 2H 4 B 7 3M 4 A 7 4F 4 B 8 5B 4 A 8 6G 4 A 9 7C 3 B .
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 15 of 28 Boundary Scan Exit Order (512K × 18) Bit # 1 1 9-ball ID 165-ball ID 1K 4 B 6 2H 4 B 7 3M 4 A 7 4F 4 B 8 5B 4 A 8 6G 4 A 9 7C 3 B.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 16 of 28 Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) S torage T e mperature ............. .............. ...... –65°C to +150°C Ambient T emperature with Power Applied .
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 17 of 28 Cap acit ance [16] Parameter Description T est Conditions 100 TQFP Max. 1 19 BGA Max.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 18 of 28 Switching Characteristics Over the Operating Range [18, 19] Parameter Descriptio n –250 –200 –166 Unit Min. Max. Min. Max. Min. Max. t Power [17] V CC (typical) to the First Access Read or Write 1 1 1 ms Clock t CYC Clock Cycle T ime 4.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 19 of 28 Switching W aveforms Read/Write T iming [23, 24, 25] Notes: 23. For this waveform ZZ is tied LOW. 24. When CE is LOW, CE 1 is LOW , CE 2 is HIGH and CE 3 is LOW . When CE is H IGH,CE 1 is HIGH o r CE 2 is LOW or CE 3 is HIGH.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 20 of 28 NOP , ST ALL and DESELECT CYCLES [23, 24, 26] Note: 26. The IGNORE CLOCK EDGE or ST ALL cycle (Clock 3) illustrated CEN being used to create a pause. A wr ite is not perform ed during this cycle.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 21 of 28 ZZ Mode T iming [27, 28] Notes: 27. Device must be deselected when entering ZZ mode. See cycle descr ipt ion table for all possible signal conditions to deselect the device. 28. I/Os are in High-Z when exiting ZZ sleep mode.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 22 of 28 Ordering Information Not all of the speed, package and temperature ranges ar e ava ilable. Please contact your local sales representative or visit www .cypress.com for actual products offered.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 23 of 28 200 CY7C1354CV25-200AXC 51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Lead-Free Commercial CY7C1356CV25-200AXC CY7C1354CV25-200BGC 51-851 1 5 1 19-ball Ball Grid Array (14 x 22 x 2.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 24 of 28 250 CY7C1354CV25-250AXC 51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Lead-Free Commercial CY7C1356CV25-250AXC CY7C1354CV25-250BGC 51-851 1 5 1 19-ball Ball Grid Array (14 x 22 x 2.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 25 of 28 Package Diagrams NOTE: 1. JEDEC STD REF MS-026 2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.0098 in (0.25 mm) PER SIDE 3.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 26 of 28 Package Diagrams (continued) 1.27 20.32 2 16 5 4 37 L E A B D C H G F K J U P N M T R 12.00 19.50 30° TYP. 2.40 MAX. A1 CORNER 0.70 REF. U T R P N M L K J H G F E D C A B 21 43 65 7 Ø1.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 27 of 28 © Cypress Semi con duct or Cor po rati on , 20 06 . The information con t a in ed he re i n is su bject to change wi t hou t n oti ce.
CY7C1354CV25 CY7C1356CV25 Document #: 38-05537 Rev . *H Page 28 of 28 Document History Page Document Title: CY7C1354CV25/CY7C1356CV25 9-Mbit (256K x 36/512K x 18) Pipelined SRAM with NoB L™ Architecture Document Number: 38-05537 REV . ECN No. Issue Date Orig.
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 CY7C1354CV25 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 CY7C1354CV25 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C1354CV25 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C1354CV25 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C1354CV25, 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 CY7C1354CV25.
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 CY7C1354CV25. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C1354CV25 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.
