Page 3 - DOFF
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 3 of 28 Logic Block Diagram (CY7C1143V18) Logic Block Diagram (CY7C1145V18) 256K x 1 8 Arra y CLK A (17:0) Gen. K K Control Logic Address Register D [17:0] R ead Add. D e code Read Data Reg. RPS WPS Q [17:0] Con...
Page 4 - Pin Configurations
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 4 of 28 Pin Configurations CY7C1141V18 (2M x 8) 165-Ball FBGA (13 x 15 x 1.4 mm) Pinout 2 3 4 5 6 7 1 A BCD E F G H J K L M N P R A CQ NC NC NC NC DOFF NC NC/72M A NWS 1 K WPS NC/144M NC NC NC NC NC TDO NC NC D5...
Page 6 - Pin Definitions; “Switching Characteristics”
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 6 of 28 Pin Definitions Pin Name IO Pin Description D [x:0] Input- Synchronous Data Input Signals. Sampled on the rising edge of K and K clocks during valid write operations. CY7C1141V18 − D [7:0] CY7C1156V18 − ...
Page 8 - Functional Overview; Read Operations; Write Operations; Concurrent Transactions
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 8 of 28 Functional Overview The CY7C1141V18, CY7C1156V18, CY7C1143V18, andCY7C1145V18 are synchronous pipelined Burst SRAMsequipped with both a read port and a write port. The read port isdedicated to read opera...
Page 9 - to enable the SRAM to adjust its output; Echo Clocks; synchronized to the input; DLL
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 9 of 28 Depth Expansion The CY7C1143V18 has a Port Select input for each port. Thisenables easy depth expansion. Both Port Selects are sampledon the rising edge of the Positive Input Clock only (K). Each portsel...
Page 10 - Application Example; Figure 1; Truth Table; BUS MASTER
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 10 of 28 Application Example Figure 1 shows the four QDR-II+ used in an application. Figure 1. Appliation Example Truth Table The truth table for the CY7C1141V18, CY7C1156V18, CY7C1143V18, and CY7C1145V18 follow...
Page 11 - Write Cycle Descriptions
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 11 of 28 Write Cycle Descriptions The write cycle descriptions of CY7C1141V18 and CY7C1143V18 follows. [2, 10] BWS 0 / NWS 0 BWS 1 / NWS 1 K K Comments L L L–H – During the data portion of a write sequence : CY7...
Page 13 - Disabling the JTAG Feature; Test Access Port—Test Clock; TAP Registers; Instruction Register; Boundary Scan Register
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 13 of 28 IEEE 1149.1 Serial Boundary Scan (JTAG) These SRAMs incorporate a serial boundary scan test accessport (TAP) in the FBGA package. This part is fully compliant withIEEE Standard #1149.1-2001. The TAP ope...
Page 14 - and t; ). The SRAM clock input might not be captured
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 14 of 28 IDCODE The IDCODE instruction causes a vendor-specific 32-bit code tobe loaded into the instruction register. It also places theinstruction register between the TDI and TDO pins and enablesthe IDCODE to...
Page 15 - TAP Controller State Diagram; Figure 2. Tap Controller State Diagram
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 15 of 28 TAP Controller State Diagram Figure 2. Tap Controller State Diagram [11] TEST-LOGICRESET TEST-LOGIC/IDLE SELECTDR-SCAN CAPTURE-DR SHIFT-DR EXIT1-DR PAUSE-DR EXIT2-DR UPDATE-DR SELECTIR-SCAN CAPTURE-IR S...
Page 19 - Boundary Scan Order; Bump ID; Internal
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 19 of 28 Boundary Scan Order Bit # Bump ID Bit # Bump ID Bit # Bump ID Bit # Bump ID 0 6R 27 11H 54 7B 81 3G 1 6P 28 10G 55 6B 82 2G 2 6N 29 9G 56 6A 83 1J 3 7P 30 11F 57 5B 84 2J 4 7N 31 11G 58 5A 85 3K 5 7R 32...
Page 20 - Figure 5. Power Up Waveforms; Unstable Clock
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 20 of 28 Power Up Sequence in QDR-II+ SRAM During Power Up, when the DOFF is tied HIGH, the DLL getslocked after 2048 cycles of stable clock. QDR-II+ SRAMs mustbe powered up and initialized in a predefined manne...
Page 21 - Electrical Characteristics
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 21 of 28 Maximum Ratings Exceeding maximum ratings may shorten the useful life of thedevice. User guidelines are not tested. Storage Temperature ................................ –65°C to + 150°C Ambient Temperat...
Page 22 - ZQ
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 22 of 28 Capacitance Tested initially and after any design or process change that may affect these parameters. Parameter Description Test Conditions Max Unit C IN Input Capacitance T A = 25 ° C, f = 1 MHz, V DD ...
Page 23 - Switching Characteristics
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 23 of 28 Switching Characteristics Over the operating range [22, 23] Cypress Parameter Consortium Parameter Description 375 MHz 333 MHz 300 MHz Unit Min Max Min Max Min Max t POWER V DD (Typical) to the First Ac...
Page 24 - Switching Waveforms; Figure 7. Waveform for 2.0 Cycle Read Latency
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 24 of 28 Switching Waveforms Read/Write/Deselect Sequence Figure 7. Waveform for 2.0 Cycle Read Latency [30, 31, 32] t KH t KL t CYC t KHKH NOP READ NOP WRITE READ WRITE 1 2 3 4 5 6 7 8 t t t tSA HA SC HC t HD t...
Page 25 - Ordering Information; for actual products offered.
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 25 of 28 Ordering Information Not all of the speed, package and temperature ranges are available. Contact your local sales representative or visit www.cypress.com for actual products offered. Speed (MHz) Orderin...
Page 27 - Package Diagram
CY7C1141V18, CY7C1156V18CY7C1143V18, CY7C1145V18 Document Number: 001-06583 Rev. *D Page 27 of 28 Package Diagram Figure 8. 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) Ø0.25 M C A B Ø0.05 M C B A 0.15(4X) 0.35±0.06 SEATING PLANE 0.53±0.05 ...
Page 28 - Document History Page; Issue Date
Document Number: 001-06583 Rev. *D Revised March 06, 2008 Page 28 of 28 QDR™ is a trademark of Cypress Semiconductor Corp. QDR RAMs and Quad Data Rate RAMs comprise a new family of products developed by Cypress, IDT, NEC, Renesas, and Samsung. Allproduct and company names mentioned in this document ...