EM641FU16E Series
merging Memory & Logic Solutions Inc.
Low Power, 256Kx16 SRAM
ABSOLUTE MAXIMUM RATINGS *
Parameter
Voltage on Any Pin Relative to Vss
Voltage on Vcc supply relative to Vss
Power Dissipation
Symbol
VIN, VOUT
VCC
Ratings
Unit
V
-0.2 to Vcc+0.3 (Max. 4.0V)
-0.2 to 4.0V
1.0
V
PD
W
oC
Operating Temperature
TA
-40 to 85
* Stresses greater than those listed under “ Absolute Maximum Ratings” may cause permanent damage to the device. Functional
operation should be restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
FUNCTIONAL DESCRIPTION
CS
OE
WE
LB
UB
I/O1-8
I/O9-16
Mode
Power
H
X
L
L
L
L
L
L
L
L
X
X
H
H
L
X
X
H
H
H
H
H
L
X
H
L
X
H
X
L
High-Z
High-Z
High-Z
High-Z
Data Out
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
Deselected
Deselected
Stand by
Stand by
Active
Active
Active
Active
Active
Active
Active
Active
Output Disabled
Output Disabled
Lower Byte Read
X
L
H
L
L
H
L
Data Out Upper Byte Read
L
L
Data Out Data Out
Word Read
Lower Byte Write
Upper Byte Write
Word Write
X
X
X
L
H
L
Data In
High-Z
Data in
High-Z
Data In
Data In
L
H
L
L
L
Note: X means don’ t care. (Must be low or high state)
3
EMLSI [ Emerging Memory & Logic Solutions Inc ]
