Instruction/ maintenance manual of the product CY62147DV30 Cypress Semiconductor
Go to page of 12
4-Mbit (256K x 16) S t atic RAM CY62147DV30 Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1 709 • 408-9 43-2600 Document #: 38-05340 Rev .
CY62147DV30 Document #: 38-05340 Rev . *F Page 2 of 12 Notes: 2. NC pins are not internally connected on the die. 3. DNU pins have to be left floati ng or tied to V SS to ensure proper application. 4. Pins H1, G2, and H6 in the VFBGA packag e are address ex p ansion pins for 8 Mb, 16 Mb, and 32 Mb, respectively .
CY62147DV30 Document #: 38-05340 Rev . *F Page 3 of 12 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 .
CY62147DV30 Document #: 38-05340 Rev . *F Page 4 of 12 Notes: 10. T ested initially and af t er any design or proc ess changes that may affect these p arameters. 1 1. T est condition for the 45-ns part is a load capacit ance of 30 pF . 12. Full device operation requ ires linea r V CC ramp from V DR to V CC(min.
CY62147DV30 Document #: 38-05340 Rev . *F Page 5 of 12 Switching Characteristics Over the Operating Range [14] Parameter Description 45 ns [1 1] 55 ns 70 ns Unit Min.
CY62147DV30 Document #: 38-05340 Rev . *F Page 6 of 12 Switching W aveforms Read Cycle 1 (Ad dress T ransition Controlled) [18, 19] Read Cycle No. 2 (OE Controlled) [19, 20] Notes: 18. The device is contin uously selected . OE , CE = V IL , BHE and/or BLE = V IL .
CY62147DV30 Document #: 38-05340 Rev . *F Page 7 of 12 Write Cycle No. 1 (WE Controlled) [17, 21, 22] Write Cycle No. 2 (CE Controlled) [17, 21, 22] Notes: 21. Data I/O is high impedance if OE = V IH . 22. If CE goes HIGH simulta neously with WE = V IH , the output rema ins in a high-impedance stat e.
CY62147DV30 Document #: 38-05340 Rev . *F Page 8 of 12 Write Cycle No. 3 (WE Controlled, OE LOW) [22] Write Cycle No. 4 (BHE /BLE Controlled, OE LOW) [22] Switching W aveforms (continued) DATA IN t HD.
CY62147DV30 Document #: 38-05340 Rev . *F Page 9 of 12 T ruth T able CE WE OE BHE BLE Inputs/Outputs Mode Power H X X X X High Z Deselect/Power-Down S tandby (I SB ) X X X H H High Z Deselect/Power-Do.
CY62147DV30 Document #: 38-05340 Rev . *F Page 10 of 12 Package Diagram A 1 A1 CORNER 0.75 0.75 Ø0.30±0.05(48X) Ø0.25 M C A B Ø0.05 M C B A 0.15(4X) 0.21±0.05 1.00 MAX C SEATING PLANE 0.55 MAX. 0.25 C 0.10 C A1 CORNER TOP VIEW BOTTOM VIEW 2 3 4 3.
CY62147DV30 Document #: 38-05340 Rev . *F Page 1 1 of 12 © Cypress Semi con duct or C orpo ra ti on , 20 06 . The i nfo r mat ion con t ained herein is subject to ch an ge wi t hou t n oti ce. C ypr ess S em i c onductor Corpo ration assu mes no resp onsib ility for the u se of any circuitr y other than cir cuitry embodied in a Cypress product.
CY62147DV30 Document #: 38-05340 Rev . *F Page 12 of 12 Document History Page Document Title:CY62147DV30 MoBL ® 4-Mbit (256K x 16) St atic RAM Document Numb er: 38-05340 REV .
An important point after buying a device Cypress Semiconductor CY62147DV30 (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 Semiconductor CY62147DV30 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 Semiconductor CY62147DV30 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cypress Semiconductor CY62147DV30 you will learn all the available features of the product, as well as information on its operation. The information that you get Cypress Semiconductor CY62147DV30 will certainly help you make a decision on the purchase.
If you already are a holder of Cypress Semiconductor CY62147DV30, 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 Semiconductor CY62147DV30.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress Semiconductor CY62147DV30. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress Semiconductor CY62147DV30 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
