3 / 11 page
EM681FV16AU Series
Low Power, 512Kx16 SRAM
3
ABSOLUTE MAXIMUM RATINGS *
* Stresses greater than those listed above “Absolute Maximum Ratings” may cause permanent damage to the device. Functional oper-
ation should be restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended periods
may affect reliability.
Parameter
Symbol
Minimum
Unit
Voltage on Any Pin Relative to Vss
VIN, VOUT
-0.2 to 4.0V
V
Voltage on Vcc supply relative to Vss
VCC
-0.2 to 4.0V
V
Power Dissipation
PD
1.0
W
Operating Temperature
TA
-40 to 85
oC
FUNCTIONAL DESCRIPTION
Note: X means don’t care. (Must be low or high state)
CS
OE
WE
LB
UB
I/O0-7
I/O8-15
Mode
Power
H
X
X
X
X
High-Z
High-Z
Deselected
Stand by
X
X
X
H
H
High-Z
High-Z
Deselected
Stand by
L
H
H
X
X
High-Z
High-Z
Output Disabled
Active
L
L
H
L
H
Data Out
High-Z
Lower Byte Read
Active
L
L
H
H
L
High-Z
Data Out
Upper Byte Read
Active
L
L
H
L
L
Data Out
Data Out
Word Read
Active
L
X
L
L
H
Data In
High-Z
Lower Byte Write
Active
L
X
L
H
L
High-Z
Data In
Upper Byte Write
Active
L
X
L
L
L
Data In
Data In
Word Write
Active