P4C168L 데이터 시트보기 (PDF) - Semiconductor Corporation
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P4C168L Datasheet PDF : 14 Pages
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P4C168/P4C168L, P4C169, P4C170
Timing Waveform of WRITE Cycle No. 1 (WE Controlled)(10)
Timing Waveform of Write Cycle No. 2 (CE/CS Controlled)(10)
Truth Tables
P4C168 (P4C169)
Mode
CE (CS) WE Output
Standby (Deselect)
H
X High Z
Read
Write
L
H
DOUT
L
L High Z
P4C170
Mode
Deselect
CE
WE
OE Output
H
X
X High Z
Read
L
H
L
DOUT
Output Inhibit
L
H
H High Z
Write
L
L
X High Z
Notes:
10. CE/CS and WE must be LOW for WRITE cycle.
11. If CE/CS goes HIGH simultaneously with WE HIGH, the output
remains in a high impedance state.
12. Write Cycle Time is measured from the last valid address to the first
transitioning address.
Document # SRAM107 REV E
Page 7 of 14
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