Manuale d’uso / di manutenzione del prodotto CY7C1440AV33 del fabbricante Cypress
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36-Mbit (1M x 36/2M x 18/512K x 72) Pipelined Sync SRAM CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Cypress Semiconductor Corpora tion • 198 Champion Cou rt • San Jose , CA 95134-1 709 • 408-943-2 600 Document #: 38-05383 Rev .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 2 of 31 Logic Block Diagram – CY7C1440A V33 (1M x 36) ADDRESS REGISTER ADV CLK BURST COUNTER AND LOGIC CLR Q1 Q0 ADSP ADS.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 3 of 31 BW D BW C BW B BW A BWE GW CE1 CE2 CE3 OE ENABLE REGISTER PIPELINED ENABLE ADDRESS REGISTER ADV CLK BINARY COUNTER .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 4 of 31 Pin Configurations DQP B DQ B DQ B V DDQ V SSQ DQ B DQ B DQ B DQ B V SSQ V DDQ DQ B DQ B V SS NC V DD ZZ DQ A DQ A .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 5 of 31 Pin Configurations (continued) 165-ball FBGA (15 x 17 x 1.4 m m) Pinout CY7C1440A V33 (1M x 36) 234 56 7 1 A B C D .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 6 of 31 209-ball FBGA (14 x 22 x 1.76 mm) Pinout CY7C1446A V33 (512K × 72) Pin Configurations (continued) A B C D E F G H .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 7 of 31 CE 2 Input- Synchronous Chip Enable 2 Inpu t, active HIGH . Sampled o n the rising edge of CLK. Used in conjunction with CE 1 and CE 3 to select/desele ct the device.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 8 of 31 Functional Overview All synchronous inputs pass through input registers controlled by the rising edge of the clock. All data outputs pass through output registers controlled by the rising edge of the clock.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 9 of 31 Interleaved Burst Address T able (MODE = Floating or V DD ) First Address A1: A0 Second Address A1: A0 Third Addres.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 10 of 31 READ Cycle, Suspend Burst Current X X X L H H H H H L-H T ri-S tate READ Cycle, Suspend Burst Current H X X L X H .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 1 1 of 31 IEEE 1 149.1 Serial Boundary Scan (JT AG) The CY7C1440A V33/CY7C1442A V33/CY7C1446A V33 incor- porates a serial boundary scan test access port (T AP). This part is fully compliant with IEEE St andard 1 149.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 12 of 31 Performing a T AP Re set A RESET is performed by forcing TMS HIGH (V DD ) for five rising edges of TCK. This RESE T does not affect the operation of the SRAM and may be performed while the SRAM is operating.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 13 of 31 The shifting of data for the SAMPLE and PRELOAD phases can occur concurrently when required—that is, whil e data captured is shifted out, the preloaded data can be shifted in.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 14 of 31 3.3V T AP AC T est Conditions Input pulse levels ........... ........ ............ ........... ..... V SS to 3.3V Input rise and fall times ........... ........... .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 15 of 31 T AP DC Electrical Characteristics And Ope rating Conditions (0°C < T A < +70°C; V DD = 3.135 to 3.6V unless otherwise no ted) [12] Parameter Des cription T est Conditions Min.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 16 of 31 Notes: 14. Balls that are NC (No Connect) are preset LOW . 15. Bit# 89 is preset HIGH. SAMPLE/PRELOAD 100 Captu res I/O ring contents. Pl aces the boundary scan regi ster betwe en TDI and TDO.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 17 of 31 Note: 16. Bit# 138 is preset HIGH. 209-ball FBGA Boundary Scan Order [14, 16] CY7C1446A V33 (512K x 72) Bit # ball.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 18 of 31 Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) S torage T emperature ............. .............. ...... –65°C to +150°C Ambient T emperature with Power Applied .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 19 of 31 Cap acit ance [19] Parameter Description T est Cond itions 100 TQFP Max. 165 FBGA Max. 209 FBGA Max. Unit C IN Input Capacitance T A = 25 ° C, f = 1 MHz, V DD = 3.3V V DDQ = 2.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 20 of 31 Switching Characteristics Over the Operating Range [24, 25] Parameter De scription –250 –200 –1 67 Unit Min. Max Min. Max. Min. Max t POWER V DD (T ypical) to the first Access [20] 111m s Clock t CYC Clock Cycle T ime 4.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 21 of 31 Switching W aveforms Read Cycle Timing [26] Note: 26. On this diagram, when CE is LOW: CE 1 is LOW, CE 2 is HIGH and CE 3 is LOW. When CE is HIGH: CE 1 is HIGH or CE 2 is LOW or CE 3 is HIGH.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 22 of 31 Write Cycle T iming [26, 27] Note: 27. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW X LOW.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 23 of 31 Read/Write Cycle Timing [26, 28, 29 ] Notes: 28. The data bus (Q) remains in high-Z foll owing a W rite cycle, unless a new read access is initiated by ADSP or ADSC .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 24 of 31 ZZ Mode T iming [30, 31] Notes: 30. Device must be deselected when entering ZZ mode. See Cycle Descr iptions table for all possible signal conditions to deselect the device.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 25 of 31 Ordering Information Not all of the speed, package and temperature ranges are available. Please con tact your local sale s rep resentative or visit www .cypress.com for actual pro duct s offered.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 26 of 31 250 C Y7C1440A V33-250AXC 51-85050 100-Pi n Thi n Quad Flat Pack (14 x 20 x 1.4 mm) Lead-Free Commercial CY7C1442A V33-250AXC CY7C1440A V33-250BZC 51-85165 165-ball Fine -Pitch Ball Grid Array (15 x 17 x 1.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 27 of 31 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.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 28 of 31 Package Diagrams (continued) A 1 PIN 1 CORNER 17.00±0.10 15.00±0.10 7.00 1.00 Ø0.45±0.05(165X) Ø0.25 M C A B Ø0.05 M C B A 0.15(4X) 0.35 1.40 MAX. SEATING PLANE 0.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 29 of 31 © 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.
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 30 of 31 Document History Page Document Title: CY7C1440 A V33/CY7C1442A V33/CY7C1446A V33 36 -Mbit (1M x 36/2M x 18/51 2K x 72) Pipelined Sync SRAM Document Number: 38-05383 REV .
CY7C1440A V33 CY7C1442A V33 CY7C1446A V33 Document #: 38-05383 Rev . *E Page 31 of 31 *E 473650 See ECN VKN Added the Ma ximum Rating for Supply V oltage on V DDQ Re lative to GND. Changed t TH , t TL from 25 ns to 20 ns and t TDOV from 5 ns to 10 ns in T AP AC Switching Characteristics table.
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 CY7C1440AV33 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 CY7C1440AV33 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C1440AV33 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C1440AV33 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C1440AV33, 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 CY7C1440AV33.
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 CY7C1440AV33. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C1440AV33 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.
