STK14EC16
Truth Table for SRAM Operations
Operating Mode
Standby/not selected
E
H
L
Internal Read
L
Lower Byte Read
Upper Byte Read
Word Read
Lower Byte Write
Upper Byte Write
Word Write
L
L
L
L
L
L
H
H
H
H
H
H
H
X
H
H
H
L
L
L
X
L
L
L
X
X
X
H
L
H
L
L
H
L
H
H
L
L
H
L
L
High-Z
Data Outputs Low-Z
High-Z
Data Outputs Low-Z
Data Inputs High-Z
High-Z
Data Inputs High-Z
HSB
H
H
W
X
H
G
X
H
LB
X
X
UB
X
X
DQ0-DQ7
High-Z
High-Z
Preliminary
DQ8-DQ15
High-Z
High-Z
High-Z
High-Z
Data Outputs Low-Z
Data Outputs Low-Z
High-Z
Data Inputs High-Z
Data Inputs High-Z
Document Control #ML0061 Rev 1.1
Jan, 2008
2
Simtek Confidential