WSF128K32-22H2C 데이터 시트보기 (PDF) - White Electronic Designs => Micro Semi

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WSF128K32-22H2C

128KX32 SRAM/FLASH MODULE

White Electronic Designs => Micro Semi 

White Electronic Designs

WSF128K32-XH2X

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 2004

Rev. 4

4

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

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