WSF41632-22G2TC Ver la hoja de datos (PDF) - White Electronic Designs => Micro Semi

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WSF41632-22G2TC

128KX32 SRAM & 512Kx32 FLASH MIXED MODULE

White Electronic Designs => Micro Semi 

White Electronic Designs

WSF41632-22XX

PRELIMINARY

FIGURE 3 – SRAM TIMING WAVEFORM - READ CYCLE

ADDRESS

DATA I/O

tRC

tAA

tOH

PREVIOUS DATA VALID

DATA VALID

READ CYCLE 1, (SCS# = OE# = VIL, SWE# = FCS# = VIH)

ADDRESS

SCS#

SOE#

DATA I/O

tRC

tAA

tACS

tCLZ

tCHZ

tOE

tOLZ

HIGH IMPEDANCE

tOHZ

DATA VALID

READ CYCLE 2, (SWE# = FCS# = VIH)

FIGURE 4 – SRAM WRITE CYCLE - SWE# CONTROLLED

ADDRESS

SCS#

SWE#

DATA I/O

tWC

tAW

tCW

tAH

tAS

tWP

tWHZ

tOW

tDW

tDH

DATA VALID

WRITE CYCLE 1, SWE# CONTROLLED (FCS# = VIH)

FIGURE 5 – SRAM WRITE CYCLE - SCS# CONTROLLED

tWC

ADDRESS

tAW

tAS

tCW

tAH

SCS#

SWE#

DATA I/O

tWP

tDW

tDH

DATA VALID

WRITE CYCLE 2, SCS# CONTROLLED (FCS# = VIH)

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

October, 2002

Rev. 4

5

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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