參數(shù)資料
型號： ICM7218
廠商： Intersil Corporation
英文描述： 8-Digit LED Microprocessor-Compatible Multiplexed Display Decoder Driver(8位數(shù)字LED顯示驅(qū)動器)
中文描述： 8位、復(fù)用輸出、LED解碼驅(qū)動器
文件頁數(shù)： 3/11頁
文件大?。?/td> 252K
代理商： ICM7218
3
FN3159.2
February 15, 2007
Absolute Maximum Ratings
Thermal Information
Supply Voltage (V
DD
to V
SS
). . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Digit Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA
Segment Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Input Voltage (Any Terminal)(Note 1). . . . V
SS
-0.3V to V
DD
+ 0.3V
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Resistance (Typical, Note 2)
CERDIP Package. . . . . . . . . . . . . . . . .
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C
θ
JA
(°C/W)
55
θ
JC
(°C/W)
14
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. Due to the SCR structure inherent in the CM0S process used to fabricate these devices, connecting any terminal to a voltage greater than V
DD
or less than V
SS
may cause destructive device latchup. For this reason it is recommended that no inputs from sources operating on a different
power supply be applied to the device before its own supply is established, and when using multiple supply systems the supply to the ICM7218
should be turned on first.
2.
θ
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
V
DD
= 5V, V
SS
= 0V, T
A
= +25°C, Display Diode Drop = 1.7V
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
SUPPLY
Operating
4
-
6
V
Power Down Mode
2
-
6
V
Quiescent Supply Current
I
Q
I
DD
Shutdown (Note 3)
6
10
300
μ
A
Operating Supply Current - Outputs Open
Circuit
Common Anode SEGS On (Note 6)
-
-
2.5
mA
Common Anode SEGS Off (Note 6)
-
-
500
μ
A
Common Cathode SEGS On (Note 6)
-
-
700
μ
A
Common Cathode SEGS Off (Note 6)
-
-
500
μ
A
Digit Drive Current
I
DIG
Common Anode V
OUT
= V
DD
-2.0V
Common Cathode V
OUT
= V
SS
+1.0V
Common Anode V
OUT
= 2V
Common Cathode V
OUT
= 5V
Common Anode V
OUT
= V
SS
+1.0V
Common Anode V
OUT
= V
DD
-2.0V
Common Anode V
OUT
= V
DD
Common Cathode V
OUT
= V
SS
Per Digit
140
200
-
mA
50
100
-
mA
Digit Leakage Current - Shutdown Mode
I
DLK
-
-
100
μ
A
-
-
100
μ
A
Peak Segment Drive Current
I
SEG
20
40
-
mA
-10
-20
-
mA
Segment Leakage Current - Shutdown
Mode
I
SLK
-
-
100
μ
A
-
-
100
μ
A
Display Scan Rate
f
MUX
-
250
-
Hz
Three Level Input (Pin 9 ICM7218C/D)
Logical “1” Input Voltage
V
IH
V
IF
V
IL
Z
IN
V
IH
V
IL
t
WL
Hexadecimal
4.5
-
-
V
Floating Input
Code B
2.0
-
3.0
V
Logical “0” Input Voltage
Shutdown
-
-
0.4
V
Three Level Input Impedance
Note 3
-
100
-
k
Ω
Logical “1” Input Voltage
3.5
-
-
V
Logical “0” Input Voltage
-
-
0.8
V
Wrtie Pulse Width (Low)
7218A, 7218B
550
400
-
ns
7218C, 7218D
400
250
-
ns
Mode Hold Time
t
MH
t
MS
t
DS
t
DH
7218A, 7218B
150
-
-
ns
Mode Setup Time
7218A, 7218B
500
-
-
ns
Data Setup Time
500
-
-
ns
Data Hold Time
7218A, 7218B
50
-
-
ns
7218C, 7218D
125
-
-
ns
Digital Address Setup Time
t
AS
7218C, 7218D
500
-
-
ns
ICM7218
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