STK14EC16 Datasheet, PDF (2/21 Pages) Simtek Corporation – 256Kx16 AutoStore nvSRAM

STK14EC16
Preliminary
Truth Table for SRAM Operations
Operating Mode
Standby/not selected
Internal Read
Lower Byte Read
Upper Byte Read
Word Read
Lower Byte Write
Upper Byte Write
Word Write
E HSB W G LB UB
HHXX
X
X
L HHH
X
X
L HXX
H
H
L HHL
L
H
L HHL
H
L
L HHL
L
L
L HLX
L
H
L
HL
X
H
L
L HLX
L
L
DQ0-DQ7
High-Z
High-Z
High-Z
Data Outputs Low-Z
High-Z
Data Outputs Low-Z
Data Inputs High-Z
High-Z
Data Inputs High-Z
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
2
Jan, 2008
Simtek Confidential