CypressメーカーCY7C1512JV18の使用説明書/サービス説明書
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72-Mbit QDR™-II SRAM 2-W ord Burst Architecture CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document #: 001-14435 Rev .
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 2 of 26 Logic Block Diagram (CY7C1510JV18) Logic Block Diagram (CY7C1525JV18) 4M x 8 Array CLK A (21:0) Gen. K K Control Logic Address Register D [7:0] Read Add.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 3 of 26 Logic Block Diagram (CY7C1512JV18) Logic Block Diagram (CY7C1514JV18) 2M x 18 Array CLK A (20:0) Gen. K K Control Logic Address Register D [17:0] Read Add.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 4 of 26 Pin Configuration The pin configuration for CY7C1510JV18, CY7C1525 JV18, CY7C1512JV18, and CY7C1514JV18 follow .
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 5 of 26 CY7C1512JV18 (4 M x 18) 123456789 1 0 1 1 A CQ NC/144M A WPS BWS 1 K NC/288M RPS AA C Q B NC Q9 D9 A N.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 6 of 26 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 during valid write operations.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 7 of 26 CQ Echo Clock CQ is Referenced with Respect to C . This is a free-running clock and is synchronized to th e input clock for output data (C) of the QDR-II.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 8 of 26 Functional Overview The CY7C1510JV18, CY7C152 5JV18, CY7C1512JV18, and CY7C1514JV18 are synchronous pipel ined Burst SRAMs with a read port and a write port.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 9 of 26 Echo Clocks Echo clocks are provided on the QD R-II to simplify dat a capture on high-speed systems. T wo echo clocks ar e generated by the QDR-II. CQ is referenced with respect to C and CQ is referenced with respect to C .
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 10 of 26 T ruth T able The truth table for CY7C1510JV18, CY7C1525JV 18, CY7C1512JV18, and CY7C1514JV18 fo llows. [2, 3, 4, 5, 6, 7] Operation K RPS WPS DQ DQ Write Cycle: Load address on the rising ed ge of K ; input write data on K and K rising edges.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 1 1 of 26 Write Cycle Descriptions The write cycle description tabl e for CY7C1525JV18 follows. [2, 8] BWS 0 K K Comments L L–H – During the Data portion of a write sequence, the single byte (D [8:0] ) is writ te n in to the device.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 12 of 26 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 p ackage. This part is fully comp liant with IEEE S tandard #1 149.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 13 of 26 IDCODE The IDCODE instruction loads a vendor-specific, 32-bi t code into the instruction re gister .
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 14 of 26 T AP Controller St ate Diagram The state diagram for the T AP controller follows.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 15 of 26 T AP Controller Block Diagram T AP Electrical Characteristics Over the Operating Range [10, 1 1, 12] Parameter Description T est Conditions Min Max Unit V OH1 Output HIGH V oltage I OH = − 2.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 16 of 26 T AP AC Switching Characteristics Over the Operating Range [13, 14] Parameter Description Min Max Uni.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 17 of 26 Identification R egi ster Definitions Instruction Field Va l u e Description CY7C1510JV18 CY7C1525JV18 CY7C1 512JV18 CY7C1514JV18 Revision Numb er (31:29) 001 001 001 001 V ersion number .
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 18 of 26 Boundary Scan Order Bit # Bump ID Bit # Bump ID Bit # Bump ID Bit # Bump ID 0 6R 28 10G 56 6A 84 1J 1.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 19 of 26 Power Up Sequence in QDR-II SRAM QDR-II SRAMs must be powered up and initialized in a predefined manner to prevent unde fined operations. During Power Up, when the DOFF is tied HIGH, the DLL gets locked after 1024 cycles of st able clock.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 20 of 26 Maximum Ratings Exceeding maximum ratin gs may impair the useful life o f the device. These user guidelines are not teste d. S torage T emperature .....
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 21 of 26 AC Electrical Characteristics Over the Operating Range [1 1] Parameter Description T est Conditio ns Min Ty p Max Unit V IH Input HIGH V oltage V REF + 0.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 22 of 26 Switching Characteristics Over the Operating Range [19, 20] Cypress Parameter Consor tium Parameter D.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 23 of 26 Switching W aveforms Figure 3. Read/Write/Deselect Sequence [2 5, 26, 27 ] K 1 2 34 5 8 10 6 7 K RPS .
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 24 of 26 Ordering Information Not all of the speed, package and temperature ranges are ava ilable. Please contact your local sales representative or visit www .cypress.
CY7C1510JV18, CY7C1525JV18 CY7C1512JV18, CY7C1514JV18 Document #: 001-14435 Rev . *C Page 25 of 26 Package Diagram Figure 4. 165-ball FBGA (15 x 17 x 1.40 mm), 51-85195 A 1 PIN 1 CORNER 17.00±0.10 15.00±0.10 7.00 1.00 Ø0.50 (165X) Ø0.25 M C A B Ø0.
Document #: 001-14435 Rev . *C Revised March 10, 2008 Page 26 of 26 QDR RAMs an d Quad Data Rate RAMs comp rise a new family of product s developed by Cypress, I DT , NEC, R enesas, and Sa msung. All pr oduct and comp any names mentioned i n this documen t are the tr ad emarks of their respe ctive hold er s.
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Cypress CY7C1512JV18を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はCypress CY7C1512JV18の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Cypress CY7C1512JV18に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちCypress CY7C1512JV18デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
