P4C168 Просмотр технического описания (PDF) - Semiconductor Corporation
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P4C168 Datasheet PDF : 15 Pages
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P4C168, P4C169, P4C170
TIMING WAVEFORM OF WRITE CYCLE NO. 1 (WE CONTROLLED)(10)
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.
TIMING WAVEFORM OF WRITE CYCLE NO. 2 (CE/CS CONTROLLED)(10)
TRUTH TABLES
P4C168 (P4C169)
Mode
CE (CS) WE
Standby (Deselect) H
X
Read
L
H
Write
L
L
Output
High Z
DOUT
High Z
P4C170
Mode
Deselect
Read
Output Inhibit
Write
CE WE OE
H
X
X
L
H
L
L
H
H
L
L
X
Output
High Z
DOUT
High Z
High Z
Document # SRAM107 REV A
Page 6 of 15
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