A d v a n c e I n f o r m a t i o n
Truth Table
Table 27. Truth Table
CE#1
CE2
X
WE# OE# BHE# BLE#
Inputs / Outputs
High-Z
Mode
Power
H
X
X
L
X
X
X
H
X
X
X
L
X
X
H
L
X
X
H
L
L
High-Z
Deselect/Power-Down
Standby (ISB)
X
High-Z
H
Data Out (I/O0–I/O15)
Read (Upper Byte and Lower Byte)
Read (Upper Byte only)
Data Out (I/O0 –I/O7);
I/O8–I/O15 in High Z
L
L
H
H
H
H
L
L
H
L
L
Data Out (I/O8–I/O15);
I/O0–I/O7 in High Z
H
Read (Lower Byte only)
L
L
L
L
H
H
H
H
H
H
H
L
H
H
H
X
L
H
L
L
L
High-Z
Output Disabled
High-Z
Output Disabled
Active (ICC)
H
L
High-Z
Output Disabled
L
Data In (I/O0–I/O15)
Write (Upper Byte and Lower Byte)
Data In (I/O0–I/O7);
I/O8–I/O15 in High Z
L
L
H
H
L
L
X
X
H
L
L
Write (Lower Byte Only)
Write (Upper Byte Only)
Data In (I/O8–I/O15);
I/O0 –I/O7 in High Z
H
March 31, 2005 S71GL032A_00_A0
S71GL032A Based MCPs
89
SPANSION [ SPANSION ]
