English dropdown-ico

Cypress CY62157E manual

1
2
3
4
5
6
7
8
9
10
11
12

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Cypress CY62157E, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Cypress CY62157E one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Cypress CY62157E. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Cypress CY62157E should contain:
- informations concerning technical data of Cypress CY62157E
- name of the manufacturer and a year of construction of the Cypress CY62157E item
- rules of operation, control and maintenance of the Cypress CY62157E item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Cypress CY62157E alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Cypress CY62157E, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Cypress service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Cypress CY62157E.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Cypress CY62157E item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    8-Mbit (512K x 16) S t atic RAM CY62157E MoBL ® Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1 709 • 408-9 43-2600 Document #: 38-05695 Rev . *C Revised November 21, 2006 Features • V ery high speed: 45 ns • Wide volt age range: 4.5V–5.5V • Ultra-low st andby power —T ypical Standby current: 2 µ A [...]

  • Page 2

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 2 of 12 Pin Configuration [2, 3] Product Port folio Product Range V CC Range (V) Speed (ns) Power Dissipation Operating I CC , (mA) Standb y , I SB2 ( µ A) f = 1MHz f = f max Min T yp [4] Max T yp [4] Max T yp [4] Max T yp [4] Max CY62157E-45 Ind’l 4.5 5.0 5.5 45 1.8 3 18 25 2 8 CY62157E-55 [5][...]

  • Page 3

    CY62157E MoBL ® Document #: 38-05695 Rev . *C 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 e mperature with Power Applied .......... ............................ ..... – 55°C to + 125°C Suppl[...]

  • Page 4

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 4 of 12 Thermal Resist ance [9] Parameter Descriptio n T est Co nd itions TSOP II VFBGA Unit Θ JA Thermal Resistance (Junction to Ambient) S till Air , solder ed on a 3 × 4.5 inch , two-layer printed circuit board 77 72 °C/W Θ JC Thermal Resistance (Junction to Case) 13 8.86 °C/W AC T est Loa[...]

  • Page 5

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 5 of 12 Switching Characteristics Over the Operating Range [12] Parameter Description 45 ns 55 ns Unit Min Max Min Max Read Cycle t RC Read Cycle T ime 45 55 ns t AA Address to Data V alid 45 55 ns t OHA Data Hold from Address Ch ange 10 10 ns t ACE CE 1 LOW and CE 2 HIGH to Dat a V alid 45 55 ns [...]

  • Page 6

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 6 of 12 Switching W aveforms Read Cycle 1 (Add ress T ransition Controlled) [16, 17] Read Cycle 2 (OE Controlled ) [1 7, 18] Notes: 16. The device is contin uously selected. OE , C E 1 = V IL , B HE and/or BLE = V IL , and CE 2 = V IH . 17. WE is HIGH for read cycle. 18. Address valid prior to or [...]

  • Page 7

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 7 of 12 Write Cycle 1 (WE Controlled) [15, 19, 20, 21] Write Cycle 2 (CE 1 or CE 2 Controlled) [15, 19, 20, 21] Notes: 19. Data IO is high impedance if OE = V IH . 20. If CE 1 goes HIGH and CE 2 goes LOW simultaneously wit h WE = V IH , the output remains in a hi gh-impedance state. 21. During thi[...]

  • Page 8

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 8 of 12 Write Cycle 3 (WE Controlled, OE LOW) [20, 21] Write Cycle 4 (BHE /BLE Controlled, OE LOW) [20, 21] Switching W aveforms (continued) V ALID DA T A t HD t SD t LZWE t PWE t SA t HA t AW t SCE t WC t HZWE t BW See Note 21 CE 1 ADDRESS CE 2 WE DA T A IO BHE /BLE t HD t SD t SA t HA t AW t WC [...]

  • Page 9

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 9 of 12 T ruth T able CE 1 CE 2 WE OE BHE BLE Inputs/Outputs Mode Power H X X X X X High Z Deselect/Power-Down S tandby (I SB ) X L X X X X High Z Deselect/Power-Down S tandby (I SB ) X X X X H H High Z Deselect/Power-Down S tandby (I SB ) L H H L L L Data Out (IO 0 –IO 15 ) Read Active (I CC ) [...]

  • Page 10

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 10 of 12 Package Diagrams 44-pin TSOP II (51-85087) 51-85087-*A [+] Feedback[...]

  • Page 11

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 1 1 of 12 © Cypress Semi con duct or Cor po rati on , 20 06 . The information contained he rein is subject to change wit hout notice. Cypress Semic onduct or Corpo ration assu mes no resp onsib ility for the u se of any circuitry o ther than circuitry embodied in a Cypress prod uct. Nor does it c[...]

  • Page 12

    CY62157E MoBL ® Document #: 38-05695 Rev . *C Page 12 of 12 Document History Page Document Title: CY62157E MoB L ® , 8-Mbit (512K x 16) St atic RAM Document Number: 38-05695 REV . ECN NO. Issue Date Or ig. of Change Description of Change ** 291273 See ECN PCI New data sheet *A 457689 See ECN NXR Added Automotive Product Removed Industrial Product[...]