7024S/L
High-Speed 4K x 16 Dual-Port Static RAM
Military, Industrial and Commercial Temperature Ranges
Truth Table I: Non-Contention Read/Write Control
Inputs(1)
Outputs
R/W
X
I/O8-15
High-Z
High-Z
DATAIN
High-Z
DATAIN
I/O0-7
High-Z
High-Z
High-Z
DATAIN
DATAIN
High-Z
DATAOUT
DATAOUT
High-Z
Mode
CE
H
X
L
OE
X
X
X
X
X
L
UB
X
H
L
LB
X
H
H
L
SEM
H
Deselcted: Power-Down
Both Bytes Deselected
Write to Upper Byte Only
Write to Lower Byte Only
Write to Both Bytes
X
H
L
H
L
L
H
L
H
L
L
L
H
L
H
H
H
X
L
H
L
H
DATAOUT
High-Z
Read Upper Byte Only
Read Lower Byte Only
Read Both Bytes
L
L
H
L
H
L
L
L
H
DATAOUT
High-Z
X
H
X
X
X
Outputs Disabled
2740 tbl 03
NOTE:
1. A0L — A11L ≠ A0R — A11R
Truth Table II: Semaphore Read/Write Control(1)
Inputs(1)
Outputs
(2)
R/W
H
I/O8-15
I/O0-7
Mode
Read Semaphore Flag Data Out
Read Semaphore Flag Data Out
CE
OE
L
UB
X
LB
X
SEM
H
X
H
X
L
L
L
L
L
L
L
DATAOUT
DATAOUT
DATAIN
DATAOUT
DATAOUT
DATAIN
H
L
H
X
H
X
X
Write I/O
0
0
into Semaphore Flag
into Semaphore Flag
↑
X
H
L
H
X
DATAIN
DATAIN
Write I/O
↑
____
____
X
X
Not Allowed
Not Allowed
____
____
L
X
X
X
L
2740 tbl 04
NOTE:
1. There are eight semaphore flags written to via I/O0 and read from all of the I/O's (I/O0 - I/O15).
These eight semaphores are addressed by A0 - A2.
AbsoluteMaximumRatings(1)
RecommendedDCOperating
Conditions
Symbol
Rating
Commercial
& Industrial
Military
Unit
Symbol
Parameter
Min.
Typ.
Max. Unit
(2)
V
TERM
Terminal Voltage
with Respect
to GND
-0.5 to +7.0
-0.5 to +7.0
V
V
CC
Supply Voltage
4.5
5.0
5.5
0
V
V
V
GND
Ground
0
0
Temperature
Under Bias
-55 to +125
-65 to +150
50
-65 to +135
-65 to +150
50
oC
oC
T
BIAS
V
IH
IL
Input High Voltage
Input Low Voltage
2.2
6.0(2)
0.8
____
-0.5(1)
V
____
V
TSTG
Storage
Temperature
2740 tbl 06
NOTES:
DC Output
Current
mA
IOUT
1. VIL > -1.5V for pulse width less than 10ns.
2. VTERM must not exceed Vcc + 10%.
2740 tbl 05
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS
may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above
those indicated in the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect reliability.
2. VTERM must not exceed Vcc +10% for more than 25% of the cycle time or 10ns
maximum, and is limited to < 20mA for the period over VTERM > Vcc + 10%.
6.442
Feb.20.20