Manuale d’uso / di manutenzione del prodotto CY7C1355C del fabbricante Cypress
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9-Mbit (256K x 36/512K x 18) Flow-Through SRAM with NoBL™ Architecture CY7C1355C CY7C1357C Cypress Semiconductor Corpora tion • 198 Champion Cou rt • San Jose , CA 95134-1 709 • 408-943-2 600 Document #: 38-05539 Rev .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 2 of 28 1 2 C MODE BW A BW B WE CE1 CE2 CE3 OE READ LOGIC DQs DQP A DQP B DQP C DQP D MEMORY ARRAY E INPUT REGISTER BW C BW D ADDRESS REGISTER WR.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 3 of 28 Pin Configurations 100-Pin TQFP Pinout A A A A A1 A0 NC/288M NC/144M V SS V DD NC/36M A A A A A A DQP B DQ B DQ B V DDQ V SS DQ B DQ B DQ.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 4 of 28 Pin Configurations (continued) 100-Pin TQFP Pinout A A A A A1 A0 NC/288M NC/144M V SS V DD NC/36M A A A A A A A NC NC V DDQ V SS NC DQP A.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 5 of 28 Pin Configurations (continued) 234 5 67 1 A B C D E F G H J K L M N P R T U V DDQ NC/576M NC/1G DQP C DQ C DQ D DQ C DQ D AA A A NC/18M V.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 6 of 28 Pin Configurations (continued) 165-Ball FBGA Pinout (3 Chip enable with JT AG) CY7C1355C (256K x 36 ) 234 56 7 1 A B C D E F G H J K L M .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 7 of 28 Pin Definitions Name I/O Description A 0 , A 1 , A Input- Synchronous Address In puts used to select one of the addres s locations . Sampled at the rising edge of the CLK. A [1:0] are fed to the two-bit burst counter .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 8 of 28 Functional Overview The CY7C1355C/CY7C1357C is a synch ronous flow-through burst SRAM designed specifically to eliminate wait states during Write-Read transitions. All synchronous inputs pass through input registers contro lled by the rising edge of the clock.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 9 of 28 precautio n, DQ s and DQP X ar e automat ically tri -stat ed during the data portion of a write cycle, regardless of the state of OE .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 10 of 28 NOP/WRITE ABORT (Begin Burs t) None L H L L L L H X L L->H Tri-S tate WRITE ABORT (Continue Burst) Next X X X L H X H X L L->H Tri.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 1 1 of 28 IEEE 1 149.1 Serial Boundary Scan (JT AG) The CY7C1355C/CY7C1357C incorpora tes a serial boundary scan test access port (T AP) in the BGA package only . The TQFP package does not offer this functionality .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 12 of 28 Diagram. Upon power-up, the instruction register is loaded with the IDCODE in struction. It is also loaded with the IDCODE instruction if the controller is placed in a reset state as described in th e pre v i o us section.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 13 of 28 T AP Timing T AP AC Switching Characteristics Over the Operating Range [10, 1 1] Parameter Description Min.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 14 of 28 3.3V T AP AC T est Conditions Input pulse levels ......... .............. ......................... V SS to 3.3V Input rise and fall times ......... .............. ...................... .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 15 of 28 Scan Register Sizes Register Name Bit Size (x36) Bit Size (x18) Instruction 3 3 Bypass 1 1 ID 32 32 Boundary Scan Order (1 19-ball BGA p.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 16 of 28 1 19-ball BGA Boundary Scan Order CY7C1355C (256K x 36) CY7C1357C (512K x 18) Bit# ball ID Signal Name Bit# ball ID Signal Name Bit# bal.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 17 of 28 165-ball FBGA Boundary Scan Order CY7C1355C (256K x 36) CY7C1357C (512K x 18) Bit# ball ID Signal Name Bit# ball ID Signal Name Bit# bal.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 18 of 28 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 emp erature with Power Applied .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 19 of 28 Cap acit ance [15] Parameter Description T est Conditions 100 TQFP Max. 11 9 B G A Max.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 20 of 28 Switching Characteristics Over the Operating Range [16, 17] Parameter D escription –133 –100 Unit Min. Max. Min. Max. t POWER V DD (T ypical) to the First Access [18] 11 m s Clock t CYC Clock Cycle T ime 7.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 21 of 28 Switching W aveforms Read/Write W aveforms [22, 23, 24] Notes: 22. For this waveform ZZ is tied LOW . 23. 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.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 22 of 28 NOP , ST ALL and DESELECT Cycles [22, 23 , 25 ] Note: 25. The IGNORE CLOCK EDGE or ST ALL cycle (Clock 3) illustrates CEN being used to create a pau se. A write is not performed durin g this cycle .
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 23 of 28 ZZ Mode T iming [26, 27] Notes: 26. Device must be deselected when entering ZZ mode. See tru th ta ble for all possible signal conditions to deselect t he device. 27. DQs are in high-Z when e xiting ZZ sleep mode.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 24 of 28 Ordering Information Not all of the speed, package and temperature ranges are available. Please co ntact your local sales representative or visit www .cypress .com for actua l produc t s offered.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E 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.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E 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.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 27 of 28 © Cypress Semi con duct or Cor po rati on , 20 06 . The information contained he re i n is su bj ect to ch ange withou t n oti ce. C ypr ess S em ic on duct or Corporation assumes no responsib ility f or the u se of any circuitry o ther than circui try embodied i n a Cypress prod uct.
CY7C1355C CY7C1357C Document #: 38-05539 Rev . *E Page 28 of 28 Document History Page Document Title: CY7C1355C/CY7C1357C 9-Mbit (256 K x 36/512 K x 18) Flow-Through S RAM with NoBL™ Architecture Document Number: 38-05539 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 CY7C1355C 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 CY7C1355C - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cypress CY7C1355C imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cypress CY7C1355C ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cypress CY7C1355C, 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 CY7C1355C.
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 CY7C1355C. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cypress CY7C1355C 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.
