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IDT70261S Datasheet(PDF) 3 Page - Integrated Device Technology

Part # IDT70261S
Description  HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM WITH INTERRUPT
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT70261S Datasheet(HTML) 3 Page - Integrated Device Technology

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6.42
IDT70261S/L
High-Speed 16K x 16 Dual-Port Static RAM with Interrupt
Industrial and Commercial Temperature Ranges
3
NOTE:
1. There are eight semaphore flags written to via I/O0 and read from all I/O's(I/O0 - I/O15). These eight semaphores are addressed by A0 - A2.
Maximum Operating Temperature
and Supply Voltage(1,2)
Truth Table II – Semaphore Read/Write Control(1)
Truth Table I – Non-Contention Read/Write Control
Recommended DC Operating
Conditions
NOTE:
1. A0L — A13L
≠ A0R — A13R.
NOTES:
1. VIL > -1.5V for pulse width less than 10ns.
2. VTERM must not exceed Vcc + 10%.
NOTE:
1. This is the parameter TA. This is the "instant on"case temperature.
Grade
Ambient
Temperature
GND
Vcc
Commercial
0OC to +70OC0V
5.0V
+ 10%
Industrial
-40OC to +85OC0V
5.0V
+ 10%
3039 tbl 02
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
Supply Voltage
4.5
5.0
5.5
V
GND
Ground
0
0
0
V
VIH
Input High Voltage
2.2
____
6.0(2)
V
VIL
Input Low Voltage
-0.5(1)
____
0.8
V
3039 tbl 03
Inputs(1)
Outputs
Mode
CE
R/W
OE
UB
LB
SEM
I/O8-15
I/O0-7
H
X
X
X
X
H
High-Z
High-Z
Deselected: Power-Down
X
X
X
H
H
H
High-Z
High-Z
Both Bytes Deselected
LL
X
L
H
H
DATAIN
High-Z
Write to Upper Byte Only
LL
X
H
L
H
High-Z
DATAIN
Write to Lower Byte Only
LL
X
L
L
H
DATAIN
DATAIN
Write to Both Bytes
LH
L
L
H
H
DATAOUT
High-Z
Read Upper Byte Only
LH
LH
LH
High-Z
DATAOUT Read Lower Byte Only
LH
L
L
LH
DATAOUT
DATAOUT Read Both Bytes
X
X
H
X
X
X
High-Z
High-Z
Outputs Disabled
3039 tbl 04
Inputs
Outputs
Mode
CE
R/W
OE
UB
LB
SEM
I/O8-15
I/O0-7
HH
L
X
X
L
DATAOUT
DATAOUT Read Data in Semaphore Flag
XH
L
H
H
L
DATAOUT
DATAOUT Read Data in Semaphore Flag
H
XXX
L
DATAIN
DATAIN
Write I/O0 into Semaphore Flag
X
XH
H
L
DATAIN
DATAIN
Write I/O0 into Semaphore Flag
LX
X
L
X
L
______
______
Not Allowed
L
XXX
L
L
______
______
Not Allowed
3039 tbl 05


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