Instruction/ maintenance manual of the product CY7C2561KV18 Cypress
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72-Mbit QDR™-II+ SRAM 4-W ord Burst Architecture (2.5 Cycle Read Latency) with ODT PRELIMINARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1 709 • 408-943-2600 Document Number: 001-15887 Rev .
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 2 of 29 Logic Block Diagram (CY7C2561KV18) Logic Block Diagram (CY7C2576KV18) 2M x 8 Array CLK A (20:0) Gen. K K Control Logic Address Register D [7:0] Read Add.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 3 of 29 Logic Block Diagram (CY7C2563KV18) Logic Block Diagram (CY7C2565KV18) 1M x 18 Array CLK A (19:0) Gen. K K Control Logic Address Register D [17:0] Read Add.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 4 of 29 Pin Configuration The pin configuration for CY7C2561KV18, CY7C 2576 KV18, CY7C2563KV18, and CY7C2565KV18 follow . [2] 165-Ball FBGA (13 x 15 x 1.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 5 of 29 CY7C2563KV18 (4M x 18) 123456789 10 11 A CQ NC/144M A WPS BWS 1 K NC/288M RPS AA C Q.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 6 of 29 T able 2. Pin Definitions Pin Name IO Pin Descripti on D [x:0] Input- Synchronous Data Input Signals . Sampled on the rising edge of K and K clocks when valid write operations are active.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 7 of 29 K Input Clock Positive Input Clock Input . The rising edge of K is used to capture synchronous inputs to the device and to dri ve out data through Q [x:0] .
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 8 of 29 Functional Overview The CY7C2561KV18, CY7C257 6KV18, CY7C2563KV18, CY7C2565KV18 are synchronous pipelined Burst SRAMs equipped with a read port and a write p ort.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 9 of 29 Read access and write access must be scheduled such th at one transaction is initiated on any clock cycle. If both port s are selected on the same K clock rise, th e arbitration depends on the previous state of the SRAM.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 10 of 29 Application Example Figure 1 shows two QDR-II+ used in an application. Figure 1. Application Example T able 3. T ru th T abl e The truth table for CY7C2561KV18, CY7C2576KV 18, CY7C2563KV18, and CY7C2565KV18 follo ws.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 1 1 of 29 T able 4. Write Cycle Descriptions The write cycle description table for CY7C2561KV18 and CY7C2563KV18 fo llows.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 12 of 29 T able 6. Write Cycle Descriptions The write cycle description tabl e for CY7C2565KV18 follows.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 13 of 29 IEEE 1 149.1 Serial Boundary Scan (JT AG) These SRAMs incorporate a serial boundary scan T est Access Port (T AP) in the FBGA package.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 14 of 29 IDCODE The IDCODE instruction loads a vendor-specific, 32-bi t code into the instruction re gister .
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 15 of 29 Figure 2. T AP Controller St ate Diagram The stat e diagram for the T AP controller follows.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 16 of 29 Figure 3. T AP Controller Block Diagram T AP Electrical Characteristics Over the Operating Range [14, 15, 16] Parameter Description T est Conditions Min Max Unit V OH1 Output HIGH V olt age I OH = − 2.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 17 of 29 T AP AC Switching Characteristics Over the Operating Range [17, 18] Parameter Descr.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 18 of 29 T able 7. Identification Register Definitions Instruction Field Va l u e Description CY7C2561KV18 CY7C2576KV18 CY7 C2563KV18 CY7C2565KV18 Revision Numb er (31:29) 000 000 000 000 V ersion number .
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 19 of 29 T able 10. Boundary Scan Ord er Bit # Bump ID Bit # Bump ID Bit # Bump ID Bit # Bum.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 20 of 29 Power Up Sequence in QDR-II+ SRAM QDR-II+ SRAMs must be powered up and initialized in a predefined manner to prevent unde fined operation s.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 21 of 29 Maximum Ratings Exceeding maximum ratin gs may impair the useful life of the device. These user guidelines are not teste d. S torage T emperature .
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 22 of 29 I SB1 Automatic Power down Current Max V DD , Both Ports Deselected, V IN ≥ V IH .
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 23 of 29 AC T est Loads and W aveforms 1.25V 0.25V R = 50 Ω 5p F INCLUDING JIG AND SCOPE ALL INPUT PULSES Device R L = 50 Ω Z 0 = 50 Ω V REF = 0.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 24 of 29 Switching Characteristics Over the Operating Range [24, 25] Cypress Parameter Conso.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 25 of 29 Switching W aveforms Read/Writ e/Deselect Sequence [32, 33, 34] Figure 6.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 26 of 29 Ordering Information The following table lists all possible speed, package and temperat ure range options supported fo r these devi ces.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 27 of 29 450 CY7C256 1KV18-450BZC 51-851 80 165-Ball Fine Pi tch Ball Grid Array (13 x 15 x 1.
PRELIMIN ARY CY7C2561KV18, CY7C2576KV18 CY7C2563KV18, CY7C2565KV18 Document Number: 001-15887 Rev . *E Page 28 of 29 Package Diagram Figure 7. 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) Ø 0 .
Document Number: 001-15887 Rev . *E Revised April 24, 2009 Page 29 of 29 QDR RAMs an d Quad Dat a Rate RAMs co mprise a ne w family of products d eveloped by Cy press, IDT , NEC, Re nesas, and Sam sung. All pr oduct and co mpany names mentione d in this do cument are the tr ademark s of their re specti ve holders .
An important point after buying a device Cypress CY7C2561KV18 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cypress CY7C2561KV18 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cypress CY7C2561KV18 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cypress CY7C2561KV18 you will learn all the available features of the product, as well as information on its operation. The information that you get Cypress CY7C2561KV18 will certainly help you make a decision on the purchase.
If you already are a holder of Cypress CY7C2561KV18, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cypress CY7C2561KV18.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress CY7C2561KV18. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress CY7C2561KV18 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
