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Manual Cypress CY7C1231H

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Summary
  • Cypress CY7C1231H - page 1

    2-Mbit (128K x 18) Flow-Through SRAM with NoBL™ Architecture CY7C1231H Cypress Semiconductor Corpora tion • 198 Champion Cou rt • San Jose , CA 95134-1 709 • 408-943-2 600 Document #: 001-00207 Rev . *B Revised April 26, 2006 Features • Can support up to 133 -MHz bus operations with zero wait st ates — Data is transferred on every clock ...

  • Cypress CY7C1231H - page 2

    CY7C1231H Document #: 001-00207 Rev . *B Page 2 of 12 Selection Guide 133 MHz Unit Maximum Access T i me 6.5 ns Maximum Operating Current 225 mA Maximum CMOS S tandby Current 40 mA Pin Configuration 100-pin TQFP Pinout A A A A A1 A0 NC/288M NC/144M V SS V DD NC(36M) A A A A A NC/4M A NC NC V DDQ V SS NC DQP A DQ A DQ A V SS V DDQ DQ A DQ A V SS NC ...

  • Cypress CY7C1231H - page 3

    CY7C1231H Document #: 001-00207 Rev . *B Page 3 of 12 Pin Definitions Name I/O Descrip tion A 0 , A 1 , A Input- Synchronous Address Inputs used to select one of th e 128K address locations . Sampled at the rising edge of the CLK. A [1:0] are fed to the two-bit burst counter . BW [A:B] Input- Synchronous Byte Write Input s, active LOW . Qualified w ...

  • Cypress CY7C1231H - page 4

    CY7C1231H Document #: 001-00207 Rev . *B Page 4 of 12 Functional Overview The CY7C1231H is a synchronous flow-through burst SRAM designed specifically to el iminate wait states during Write-Read transitions. All synchronous inputs pass through input registers controlled by the rising edge of the clock. The clock signal is qualified with th e Clock ...

  • Cypress CY7C1231H - page 5

    CY7C1231H Document #: 001-00207 Rev . *B Page 5 of 12 Linear Burst Address T able (MODE = GND) First Address A1, A0 Second Address A1, A0 Third Address A1, A0 Fourth Address A1, A0 00 01 10 1 1 01 10 1 1 00 10 1 1 00 01 1 1 00 01 10 Interleaved Burst Sequence First Address Second Address Third Address Fourth Address A1, A0 A1, A0 A1, A0 A1, A0 00 0 ...

  • Cypress CY7C1231H - page 6

    CY7C1231H Document #: 001-00207 Rev . *B Page 6 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 emperature with Power Applied ........... ............................ ...... –55°C to +125°C Supply V olt ...

  • Cypress CY7C1231H - page 7

    CY7C1231H Document #: 001-00207 Rev . *B Page 7 of 12 Cap acit ance [1 1] Parameter Description T est Conditions 100 TQFP Max. Unit C IN Input Capacitance T A = 25°C , f = 1 MHz, V DD = 3.3V V DDQ = 2.5V 5p F C CLOCK Clock Input Capacitance 5 pF C I/O I/O Capacit ance 5 pF Thermal Resist ance [1 1] Parameters Description T est Conditions 100 TQFP ...

  • Cypress CY7C1231H - page 8

    CY7C1231H Document #: 001-00207 Rev . *B Page 8 of 12 Switching Characteristics Over the Operating Range [12, 13] Parameter Description -133 Unit Min. Max. t POWER V DD (T ypical) to the first Access [14] 1 ms Clock t CYC Clock Cycle T ime 7.5 ns t CH Clock HIGH 2.5 ns t CL Clock LOW 2.5 ns Output Times t CDV Data Output V alid after CLK Rise 6.5 n ...

  • Cypress CY7C1231H - page 9

    CY7C1231H Document #: 001-00207 Rev . *B Page 9 of 12 Switching W aveforms Read/Write W aveforms [18, 19, 20] Notes: 18. For this waveform ZZ is tied LOW. 19. When CE is LOW , CE 1 is LOW , CE 2 is HIGH and CE 3 is LOW. When CE is HIGH, CE 1 is HIGH or CE 2 is LOW or CE 3 is HIGH. 20. Order of the Burst sequence is determined by the stat us of the ...

  • Cypress CY7C1231H - page 10

    CY7C1231H Document #: 001-00207 Rev . *B Page 10 of 12 NOP , ST ALL and Des elect Cyc les [1 8, 19, 21] ZZ Mode T iming [22, 23] Notes: 21. The IGNORE CLOCK EDGE or ST ALL cycle (Clock 3) illustrated CEN being used to create a pause. A writ e is not perform ed during this cycle. 22. Device must be deselected when entering ZZ mode. See T ruth T a bl ...

  • Cypress CY7C1231H - page 11

    CY7C1231H Document #: 001-00207 Rev . *B Page 1 1 of 12 © Cypress Semi con duct or Cor po rati on , 20 06 . The information contained he re i n is su bj ect to ch ange without notice. Cypress S em ic on duct or Corpo ration assu mes no resp onsib ility for th e u se of any circuitry o ther than circui try embodied i n a Cypress prod uct. Nor does ...

  • Cypress CY7C1231H - page 12

    CY7C1231H Document #: 001-00207 Rev . *B Page 12 of 12 Document History Page Document Title: CY7C1231H 2-Mbit (128K x 18) Flow-Through SRAM with NoBL™ Archite ctur e Document Numb er: 001-00207 REV . ECN NO. Issue Date Orig. of Change Description of Cha ng e ** 347377 See ECN PCI New Data Sheet *A 428408 See ECN NXR Converted from Preliminary to ...

Manufacturer Cypress Category Computer Hardware

Documents that we receive from a manufacturer of a Cypress CY7C1231H can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Cypress CY7C1231H.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Cypress CY7C1231H, service manual, brief instructions and user manuals Cypress CY7C1231H. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Cypress CY7C1231H.

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A complete manual for the device Cypress CY7C1231H, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Cypress CY7C1231H by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Cypress CY7C1231H.

A complete Cypress manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Cypress CY7C1231H - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Cypress CY7C1231H, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Cypress CY7C1231H, that we can find in the current document
3. Tips how to use the basic functions of the device Cypress CY7C1231H - which should help us in our first steps of using Cypress CY7C1231H
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5. FAQ - Frequently Asked Questions
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