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參數(shù)資料
| 型號： | LH540235 |
| 廠商： | Sharp Corporation |
| 英文描述： | 2048 x 18 / 4096 x 18 Synchronous FIFOs |
| 中文描述： | 2048 ×四千零九十六分之十八× 18同步FIFO的 |
| 文件頁數(shù)： | 8/46頁 |
| 文件大小： | 369K |
| 代理商： | LH540235 |
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ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
Supply Voltage to V
SS
Potential
Signal Pin Voltage to V
SS
Potential
DC Output Current
1
Temperature Range with Power
Applied
2
Storage Temperature Range
Power Dissipation (PLCC Pack-
age Limit)
–0.5 V to 7 V
–0.5 V to V
CC
+ 0.5 V
±
75 mA
–55
°
C to 125
°
C
–65
°
C to 150
°
C
2 W
NOTES:
1.
Only one output may be shorted at a time, for a period not
exceeding 30 seconds.
2.
Measured with clocks idle.
OPERATING RANGE
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
T
A
V
CC
V
SS
V
IL
V
IH
Temperature, Ambient
0
70
C
Supply Voltage
4.5
5.5
V
Supply Voltage
0
0
V
Logic LOW Input Voltage
–0.5
0.8
V
Logic HIGH Input Voltage
2.0
V
CC
+ 0.5
V
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN.
MAX.
UNIT
I
LI
I
LO
Input Leakage
V
CC
= 5.5 V, V
IN
= 0 V to V
CC
OE
≥
V
IH
, 0 V
≤
V
OUT
≤
V
CC
I
OH
= –8.0 mA
I
OL
= 16.0 mA
Measured at f
CC
= 50 MHz
All inputs = V
IHMIN
(clocks idle)
All inputs = V
CC
– 0.2 V (clocks idle)
All inputs = V
CC
– 0.2 V (clocks at 50 MHz)
–10
10
μ
A
μ
A
V
I/O Leakage
–10
10
V
OH
V
OL
I
CC
I
CC2
I
CC3
I
CC4
Output HIGH Voltage
2.4
Output LOW Voltage
Average Operating Supply Current
1,2
Average Standby Supply Current
2
Power-Down Supply Current
2
Power-Down Supply Current
2
0.4
V
245
mA
25
mA
1
mA
1
mA
NOTES:
1.
Output load is disconnected.
2.
I
, I
, and I
are dependent upon actual output loading, and I
and I
CC4
are also dependent on cycle rates. Specified values are with
outputs open; and, for I
CC
and I
CC4
, operating at minimum cycle times.
AC TEST CONDITIONS
PARAMETER
RATING
Input Pulse Levels
V
SS
to 3 V
3 ns
Input Rise and Fall Times (10% to 90%)
Input Timing Reference Levels
1.5 V
Output Timing Reference Levels
1.5 V
Output Load,
Timing Tests
(Figure 5)
R
1
(Top Resistor)
R
2
(Bottom Resistor)
C
L
(Load Capacitance)
1.1k
680
30 pF
540235-3
DEVICE
UNDER
TEST
+5 V
30 pF
1.1 k
680
INCLUDES JIG AND SCOPE CAPACITANCES
*
*
Figure 4. Output Load Circuit
CAPACITANCE
PARAMETER
RATING
C
IN
(Input Capacitance) V
IN
= 0 V
C
OUT
(Output Capacitance) V
OUT
= 0 V
9 pF
9 pF
BOLD ITALIC = Enhanced Operating Mode
LH540235/45
2048 x 18/4096 x 18 Synchronous FIFOs
8
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