參數(shù)資料
型號: 74LVX139TTR
廠商: 意法半導(dǎo)體
英文描述: LOW VOLTAGE CMOS DUAL 2 TO 4 DECODER/DEMULTIPLEXER
中文描述: 低電壓CMOS雙2日至4譯碼器/解復(fù)用器
文件頁數(shù): 4/12頁
文件大?。?/td> 289K
代理商: 74LVX139TTR
74LVX139
4/12
Table 7: Dynamic Switching Characteristics
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (V
ILD
), 0V to threshold
(V
IHD
), f=1MHz.
Table 8: AC Electrical Characteristics
(Input t
r
= t
f
= 3ns)
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW
2) Parameter guaranteed by design
(*) Voltage range is 3.3V
±
0.3V
Table 9: Capacitive Characteristics
1) C
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/2 (per
Decoder)
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
V
OLP
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input (note
1, 3)
Dynamic Low
Voltage Input (note
1, 3)
3.3
C
L
= 50 pF
0.3
0.5
V
V
OLV
V
IHD
-0.5
-0.3
3.3
2
V
ILD
3.3
0.8
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
t
PLH
t
PHL
Propagation Delay
Time
A, B to Y
2.7
2.7
3.3
(*)
3.3
(*)
2.7
2.7
3.3
(*)
3.3
(*)
2.7
3.3
(*)
15
50
15
7.5
9.4
6.0
12.0
15.0
8.5
14.0
17.0
10.0
16.0
19.0
11.5
ns
50
15
50
15
7.6
7.3
9.2
5.8
11.0
12.0
15.0
8.5
12.5
14.0
17.0
10.0
14.5
16.0
19.0
11.5
t
PLH
t
PHL
Propagation Delay
Time
G to Y
ns
50
50
7.2
0.5
0.5
11.0
1.0
1.0
12.5
1.5
1.5
14.5
1.5
1.5
t
OSLH
t
OSHL
Output To Output
Skew Time (note1,
2)
ns
50
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance
(note 1)
3.3
5
pF
3.3
f
IN
= 10MHz
13
pF
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