WCMA2008U1B Datasheet, PDF (6/11 Pages) List of Unclassifed Manufacturers – 256K x 8 Static RAM

Switching Waveforms
Read Cycle No. 1 (Address Transition Controlled) ^{[9, 10]}
t_RC
ADDRESS
t_AA
t_{O H A}
DATA OUT
PREVIOUS DATA VALID
WCMA2008U1B
DATA VALID
Read Cycle No. 2 (OE Controlled)^{[10, 11]}
ADDRESS
t_RC
CE₁
CE₂
OE
DATA OUT
V_CC
SUPPLY
CURRENT
t_ACE
t_DOE
t_LZOE
HIGH IMPEDANCE
t_LZCE
t_PU
50%
DATA VALID
t_HZOE
t_HZCE
HIGH
IMPEDANCE
t_PD
I_{C C}
50%
I_SB
Notes:
9. Device is continuously selected. OE , CE₁ = V _IL, CE₂ = V_IH .
10. WE is HIGH for read cycle.
11. Address valid prior to or coincident withCE transition LOW.
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