Instruction/ maintenance manual of the product CY7C1344H Cypress
Go to page of 15
2-Mbit (64K x 36) Flow-Through Sync SRAM CY7C1344H Cypress Semiconductor Corpora tion • 198 Champion Cou rt • San Jose , CA 95134-1 709 • 408-943-2 600 Document #: 001-0021 1 Rev . *B Revised April 26, 2006 Features • 64K x 36 common I/O • 3.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 2 of 15 Selection Guide 133 MHz 100 MHz Unit Maximum Access T i me 6.5 8.0 ns Maximum Operating Current 225 205 mA Maximum S tandby Cu rrent 40 40 mA Pin.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 3 of 15 Pin Definitions Name I/O Description A0, A1, A Input- Synchronous Address In puts used to select one of the 64K a ddress location s. Sampl ed at the rising edge o f the CLK if ADSP or ADSC is active LOW , and CE 1 , CE 2 , and CE 3 are s ample d act ive.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 4 of 15 Functional Overview All synchronous inputs pass through input registers controlled by the rising edge o f the clock.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 5 of 15 ZZ Mode Electrical Characteristics Parameter Description T est Conditions Min. Max. Unit I DDZZ Sleep mode standby current ZZ > V DD – 0.2V 40 mA t ZZS Device operation to ZZ ZZ > V DD – 0.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 6 of 15 T ruth T able fo r Read/W rite [2, 3] Function GW BWE BW D BW C BW B BW A R e a d H HXXXX R e a d H L HHHH Write Byte (A, DQP A ) H L HHH L Write.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 7 of 15 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 e mperature with Power Applied .
CY7C1344H Document #: 001-0021 1 Rev . *B Page 8 of 15 Cap acit ance [9] Parameter Description T est Conditions 100 TQFP Max. Unit C IN Input Capacit ance T A = 25 ° C, f = 1 MHz, V DD = 3.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 9 of 15 Switching Characteristics Over the Operating Range [10, 1 1] Parameter Description 133 MHz 100 MHz Unit Min. Max. Min. Max. t POWER V DD (T ypical) to the First Access [12] 11 m s Clock t CYC Clock Cycle T ime 7.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 10 of 15 Timing Diagrams Read Cycle Timing [16] Note: 16. On this diagram, when CE is LOW, CE 1 is LOW, CE 2 is HIGH and CE 3 is LOW.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 1 1 of 15 Write Cycle T iming [16, 17] Note: 17. Full width Write can be initiate d by either GW LOW; or by GW HIGH, BWE LOW and BW [A:D] LOW.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 12 of 15 Read/Write T iming [16, 18, 19] Notes: 18. The data bus (Q) remains in High- Z following a Write cycle unless an ADSP , ADSC , or ADV cycle is performed.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 13 of 15 ZZ Mode T iming [20, 21] Notes: 20. Device must be deselect ed when entering ZZ mode. See Cycle Descr iptions t able for all possible signal conditions to deselect the device. 21. DQs are in High-Z when exiting ZZ sleep mode.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 14 of 15 © 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. C ypr ess S em ic onduct or Corporation assumes no resp onsibility f or the u se of any circuitry o ther than circui try embodied i n a Cypress prod uct.
CY7C1344H Document #: 001-0021 1 Rev . *B Page 15 of 15 Document History Page Document Title: CY7C1344H 2-Mbit (64K x 36) Flow-Through Sync SRAM Document Number: 00 1-0021 1 REV .
An important point after buying a device Cypress CY7C1344H (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 CY7C1344H 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 CY7C1344H - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cypress CY7C1344H you will learn all the available features of the product, as well as information on its operation. The information that you get Cypress CY7C1344H will certainly help you make a decision on the purchase.
If you already are a holder of Cypress CY7C1344H, 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 CY7C1344H.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress CY7C1344H. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress CY7C1344H 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
