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AN5042 - Migrating from Cypress FLEx18 / FLEx36® / FLEx72™ Dual-Port SRAMs to FullFlex Dual-Port SRAMs

Last Updated: 02/07/2013
Version: *C
AN5042 discusses the features of Cypress's FullFlex Dual-Port SRAM and typical applications for which the devices are ideally suited.

Introduction

Cypress's FLEx18 / FLEx36® / FLEx72™ portfolio of highdensity, high-performance synchronous Dual-Port SRAMs can operate at speeds up to 167 MHz. In the fast growing data communications market, the bandwidth requirements have increased. Cypress addresses these demands with its FullFlex Dual-Port SRAMs, which can operate up to 200 MHz.

 

FLEx18: CYD01S18V/ CYD02S18V/ CYD04S18V/ CYD09S18V

FLEx36: CYD02S36V/36VA

FLEx72: CYD04S72V/CYD09S72V/CYD18S72V
 

FullFlex x 18: CYD36S18V18, CYD18S18V18, CYD09S18V18

FullFlex x 36: CYD02S36V18, CYD09S36V18, CYD18S36V18, CYD36S36V18

FullFlex x 72: CYD09S72V18, CYD18S72V18, CYD36S72V18

Package:

256-ball FBGA 17mm x 17mm
484-ball FBGA 23mm x 23mm

Package:

256-ball FBGA 17mm x 17mm
484-ball FBGA 23mm x 23mm
  • Power Supply 3.3V
  • Single I/O Standard
    • LVTTL(3.3V)


     
  • Upto 167MHz in pipelined mode
  • Pipelined mode of operation
  • Burst Counter, Mask & Counter Wrap around features
  • Retransmit functionality achieved using counter increment feature
  • Collision Detection
    • BUSY signal
  • Power Supply 1.8V or 1.5V
  • Four selectable I/O standards
    • LVTTL (3.3V)
    • Extended HSTL (1.4V to 1.9V)
    • 2.5V LVCMOS
    • 1.8V LVCMOS
  • Upto 200MHz in pipelined mode
  • Selectable Pipeline or Flow-Through mode
  • Burst Counter, Mask & Counter Wrap around features
  • Dedicated Retransmit feature (with RT# pin) enabling repeated access to the same block of memory
  • Collision Detection
    • BUSY signal
    • Readable register to store collision address
    • Busy Address Readback
  • Echo Clocks for reliable data transfer at high speeds
  • Variable Impedance Matching (VIM)

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    File Title Language File Size Last Updated
      AN5042.pdf English 416 KB 02/06/2013
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Spec No: 001-41239; Sunset Owner: ADMU; Secondary Owner: AJU; Sunset Date: 06/06/11
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