EDI88128CXCI WEDC [White Electronic Designs Corporation], EDI88128CXCI Datasheet - Page 5

• Manufacturer Part Number: EDI88128CXCI
• Description: 128Kx8 MONOLITHIC SRAM, SMD 5962-89598
• Manufacturer: WEDC [White Electronic Designs Corporation]

White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
April 2005
Rev. 17
ADDRESS
ADDRESS
DATA I/O
DATA IN
CS
WE#
CS
1#
2
FIGURE 4 – WRITE CYCLE 2
WRITE CYCLE 2 - EARLY WRITE, CS
White Electronic Designs
t
AVEL
READ CYCLE 1 (WE# HIGH; OE#, CS# LOW)
ADDRESS 1
t
AVQV
t
AVAV
FIGURE 2 – TIMING WAVEFORM — READ CYCLE
t
ELEH
t
t
AVAV
WLEH
t
DVEH
DATA OUT
ADDRESS
DATA 1
DATA IN
t
ADDRESS 2
AVQX
DATA VALID
CS1#
WE#
CS
1#
CONTROLLED
2
FIGURE 3 – WRITE CYCLE 1
t
t
EHDX
EHAX
WRITE CYCLE 1 - LATE WRITE, WE# CONTROLLED
t
AVWL
DATA 2
t
WLQZ
t
t
SHWH
ELWH
t
AVWH
5
t
WLWH
ADDRESS
ADDRESS
t
AVAV
DATA I/O
DATA IN
t
DVWH
CS1#
CS1#
DATA VALID
WE#
CS2
CS2
OE#
HIGH Z
White Electronic Designs Corporation • [phone] • www.wedc.com
t
WHDX
t
WHQX
WRITE CYCLE 3 - EARLY WRITE, CS
t
WHAX
t
AVSH
WRITE CYCLE 3
t
t
SHQX
ELQX
READ CYCLE 2 (WE# HIGH)
t
t
t
SHQV
GLQX
t
ELQV
t
AVQV
GLQV
t
SHSL
t
t
AVAV
t
AVAV
WLSL
t
DVSL
DATA VALID
2
CONTROLLED
EDI88128C
t
t
SLDX
SLAX
t
t
t
GHQZ
EHQZ
SLQZ