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IDT7026L55GB Datasheet(PDF) 4 Page - Integrated Device Technology

Part # IDT7026L55GB
Description  HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT7026L55GB Datasheet(HTML) 4 Page - Integrated Device Technology

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IDT7026S/L
HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGES
RECOMMENDED DC OPERATING
CONDTIONS
Symbol
Parameter
Min.
Typ.
Max. Unit
VCC
Supply Voltage
4.5
5.0
5.5
V
GND
Supply Voltage
0
0
0
V
VIH
Input High Voltage
2.2
6.0
(2)
V
VIL
Input Low Voltage
–0.5
(1)
0.8
V
NOTES:
2939 tbl 06
1. VIL > -1.5V for pulse width less than 10ns.
2. VTERM must not exceed Vcc + 0.5V.
CAPACITANCE(1) (TA = +25
°C, f = 1.0MHz)
Symbol
Parameter
Conditions
(2)
Max.
Unit
CIN
Input Capacitance
VIN = 3dv
9
pF
COUT
Output
VOUT = 3dv
10
pF
Capacitance
NOTES:
2939 tbl 07
1. This parameter is determined by device characterization but is not
production tested.
2. 3dV represents the interpolated capacitance when the input and output
signals switch from 0V to 3V or from 3V to 0V.
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
Commercial
Military
Unit
VTERM(2)
Terminal Voltage –0.5 to +7.0
–0.5 to +7.0
V
with Respect
to GND
TA
Operating
0 to +70
–55 to +125
°C
Temperature
TBIAS
Temperature
–55 to +125
–65 to +135
°C
Under Bias
TSTG
Storage
–55 to +125
–65 to +150
°C
Temperature
IOUT
DC Output
50
50
mA
Current
NOTES:
2939 tbl 05
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 + 0.5V for more than 25% of the cycle time
or 10ns maximum, and is limited to < 20mA for the period of VTERM > Vcc
+ 0.5V.
TRUTH TABLE I – NON-CONTENTION READ/WRITE CONTROL
Inputs
(1)
Outputs
CE
CE
CE
CE
CE
R/
W
W
W
W
W
OE
OE
OE
OE
OE
UB
UB
UB
UB
UB
LB
LB
LB
LB
LB
SEM
SEM
SEM
SEM
SEM
I/O8-15
I/O0-7
Mode
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
L
L
X
L
H
H
DATAIN
High-Z
Write to Upper Byte Only
L
L
X
H
L
H
High-Z
DATAIN
Write to Lower Byte Only
L
L
X
L
L
H
DATAIN
DATAIN
Write to Both Bytes
L
H
L
L
H
H
DATAOUT
High-Z
Read Upper Byte Only
L
H
L
H
L
H
High-Z
DATAOUT Read Lower Byte Only
L
H
L
L
L
H
DATAOUT DATAOUT Read Both Bytes
X
X
H
X
X
X
High-Z
High-Z
Outputs Disabled
NOTE:
2939 tbl 03
1. A0L — A13L
≠ A0R — A13R.
TRUTH TABLE II – SEMAPHORE READ/WRITE CONTROL
(1)
Inputs
Outputs
CE
CE
CE
CE
CE
R/
W
W
W
W
W
OE
OE
OE
OE
OE
UB
UB
UB
UB
UB
LB
LB
LB
LB
LB
SEM
SEM
SEM
SEM
SEM
I/O8-15
I/O0-7
Mode
H
H
L
X
X
L
DATAOUT DATAOUT Read Data in Semaphore Flag
X
H
L
H
H
L
DATAOUT DATAOUT Read Data in Semaphore Flag
H
X
X
X
L
DATAIN
DATAIN
Write I/O0 into Semaphore Flag
X
X
H
H
L
DATAIN
DATAIN
Write I/O0 into Semaphore Flag
L
X
X
L
X
L
Not Allowed
L
X
X
X
L
L
Not Allowed
2939 tbl 04
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.


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