6.42
IDT7015S/L
High-Speed 8K x 9 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
4
Truth Table I: Non-Contention Read/Write Control
Recommended DC Operating
Conditions
Maximum Operating
Temperature and Supply Voltage
(1)
Absolute Maximum Ratings
(1)
Truth Table II: Semaphore Read/Write CONTROL
(1)
NOTE:
1. Condition: A0L — A12L = A0R — A12R
NOTE:
1. There are eight semaphore flags written to via I/O0 and read from all I/Os (I/O0 - I/O8). These eight semaphores are addressed by A0 - A2.
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 of VTERM > Vcc + 10%.
NOTES:
1. This is the parameter TA. There is the "instant on" case temperature.
NOTES:
1. VIL > -1.5V for pulse width less than 10ns.
2. VTERM must not exceed Vcc + 10%.
Inputs
(1 )
Outputs
Mode
CE
R/W
OE SEM
I/O
0-8
H X X H High-Z Deselected: Power-Down
LLXHDATA
IN
Write to Memory
LHLHDATA
OUT
Read Memory
X X H X High-Z Outputs Disabled
2954 tbl 02
Inputs
(1 )
Outputs
Mode
CE
R/W
OE SEM
I/O
0-8
HHLLDATA
OUT
Read Semaphore Flag Data Out (I/O
0-8
)
H
↑
XL DATA
IN
Write I/O
0
into Semaphore Flag
LXXL
____
Not Allowed
2954 tbl 03
Symbol Rating
Commercial
& Industrial Unit
V
TERM
(2)
Terminal Voltage
with Respect
to GND
-0.5 to +7.0 V
T
BIAS
Temperature
Under Bias
-55 to +125
o
C
T
STG
Storage
Temperature
-65 to +150
o
C
I
OUT
DC Output
Current
50 mA
2954 tbl 04
Grade
Ambient
Temperature GND Vcc
Commercial 0
O
C to +70
O
C0V5.0V
+
10%
Industrial -40
O
C to +85
O
C0V5.0V
+
10%
2954 tbl 05
Symbol Parameter Min. Typ. Max. Unit
V
CC
Supply Voltage 4.5 5.0 5.5 V
GND Ground 0 0 0 V
V
IH
Input High Voltage 2.2
____
6.0
(2)
V
V
IL
Input Low Voltage -0.5
(1)
____
0.8 V
2954 tbl 06