CY7C4205V Ver la hoja de datos (PDF) - Cypress Semiconductor

Número de pieza

componentes Descripción

Lista de partido

CY7C4205V

64/256/512/1K/2K/4K x18 Low-Voltage Synchronous FIFOs

Cypress Semiconductor 

Switching Waveforms (continued)

Read Expansion Out Timing

RCLK

RXO

REN

tCLKH

Note 32

tXO

tXO

tENS

CY7C4225V/4205V/4215V

CY7C4425V/4235V/4245V

Write Expansion In Timing

tXI

WXI

tXIS

WCLK

Read Expansion In Timing

RXI

RCLK

Retransmit Timing[33, 34, 35]

FL/RT

REN/WEN

tXI

tXIS

tPRT

tRTR

EF/FF

and/all

async flags

HF/PAE/PAF

Notes:

32. Read from Last Physical Location.

33. Clocks are free running in this case.

34. The flags may change state during Retransmit as a result of the offset of the read and write pointers, but flags will be valid at tRTR.

35. For the synchronous PAE and PAF flags (SMODE), an appropriate clock cycle is necessary after tRTR to update these flags.

Document #: 38-06029 Rev. *C

Page 17 of 20

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