參數(shù)資料
型號: IDT71028S20YG8
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: SRAM
英文描述: 256K X 4 STANDARD SRAM, 20 ns, PDSO28
封裝: 0.400 INCH, ROHS COMPLIANT, PLASTIC, SOJ-28
文件頁數(shù): 2/8頁
文件大?。?/td> 457K
代理商: IDT71028S20YG8
6.42
IDT71028 CMOS Static RAM
1 Meg (256K x 4-Bit) Commercial and Industrial Temperature Ranges
Pin Configuration
Symbol
Parameter
Mn.
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
____
V
CC
+0.5
V
V
IL
Input Low Voltage
–0.5
(1)
____
0.8
V
2966 tbl 04
Recommended DC Operating
Conditions
Absolute Maximum Ratings
(1)
Capacitance
(T
A
= +25°C, f = 1.0MHz, SOJ package)
SOJ
Top View
Truth Table
(1,2)
5
6
7
8
9
10
11
12
13
14
GND
A
0
A
1
A
2
A
3
A
4
A
5
A
6
1
2
3
4
28
27
26
25
24
23
22
21
20
19
18
17
16
15
SO28-6
A
7
A
8
A
9
A
10
CS
A
17
A
16
A
15
A
14
A
13
A
12
A
11
NC
I/O
3
OE
WE
I/O
0
2966 drw 02
V
CC
I/O
1
I/O
2
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUMRATINGS 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 maximumrating
conditions for extended periods may affect reliability.
2. V
TERM
must not exceed V
CC
+ 0.5V.
NOTE:
1. This parameter is guaranteed by device characterization, but not production tested.
NOTE:
1. V
IL
(mn.) = –1.5V for pulse width less than 10ns, once per cycle.
NOTES:
1. H = V
IH
, L = V
IL
, x = Don't care.
2. V
LC
= 0.2V, V
HC
= V
CC
-0.2V.
3. Other inputs
V
HC
or
V
LC
.
CS
OE
WE
I/O
Function
L
L
H
DATA
OUT
Read Data
L
X
L
DATA
IN
Write Data
L
H
H
High-Z
Output Disabled
H
X
X
High-Z
Deselected – Standby (I
SB
)
V
HC
(3)
X
X
High-Z
Deselected – Standby (I
SB1
)
2966 tbl 01
Symbol
Rating
Value
Unit
V
TERM
(2)
Terminal Voltage with Respect to GND
–0.5 to +7.0
V
T
A
Operating Temperature
0 to +70
o
C
T
BIAS
Temperature Under Bias
–55 to +125
o
C
T
STG
Storage Temperature
–55 to +125
o
C
P
T
Power Dissipation
1.25
W
I
OUT
DC Output Current
50
mA
2966 tbl 02
Symbol
Parameter
(1)
Conditions
Max.
Unit
C
IN
Input Capacitance
V
IN
= 3dV
8
pF
C
I/O
I/O Capacitance
V
OUT
= 3dV
8
pF
2966 tbl 03
Recommended Operating
Temperature and Supply Voltage
Grade
Temperature
V
SS
V
SS
Commercial
0
O
C to +70
O
C
0V
5.0V ± 10%
Industrial
–40
O
C to +85
O
C
0V
5.0V ± 10%
2966 tbl 05
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