74lvx257 STMicroelectronics, 74lvx257 Datasheet - Page 4

• Manufacturer Part Number: 74lvx257
• Description: Low Voltage Cmos Quad 2 Channel Multiplexer 3-state With 5v Tolerant Inputs
• Manufacturer: STMicroelectronics

74LVX257
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
(V
Table 8: AC Electrical Characteristics (Input t
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
4/13
Symbol
Symbol
IHD
t
t
V
V
V
V
t
t
t
t
t
t
t
t
OSLH
OSHL
PZH
PHZ
PLH
PHL
PLH
PHL
PZL
PLZ
OLP
OLV
IHD
), f=1MHz.
ILD
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input
(note 1, 3)
Dynamic Low
Voltage Input
(note 1, 3)
Propagation Delay
Time
A, B, to Y
Propagation Delay
Time
SELECT to Y
Output Enable
Time
Output Disable
Time
Output to Output
Skew Time (note
1,2)
Parameter
Parameter
0.3V
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
V
V
3.3
3.3
3.3
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
(V)
(V)
CC
CC
(*)
(*)
(*)
(*)
(*)
(*)
(*)
(*)
Test Condition
Test Condition
(pF)
C
15
50
15
50
15
50
15
50
15
50
15
50
50
50
50
50
L
C
L
= 50 pF
r
= t
f
= 3ns)
Min.
Min.
-0.5
2.0
T
T
A
A
Typ.
Typ.
10.5
10.5
= 25°C
-0.3
= 25°C
0.3
7.0
9.5
5.8
8.3
8.5
7.0
9.5
8.0
6.7
9.2
9.5
8.6
0.5
0.5
Max.
Max.
13.0
18.0
12.8
15.4
20.3
11.0
14.5
14.7
19.6
10.5
14.0
16.8
12.0
0.5
0.8
9.3
1.0
1.0
Value
Value
-40 to 85°C
Min.
-40 to 85°C
Min.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Max.
Max.
15.4
20.3
11.0
14.5
18.2
23.1
13.0
16.5
17.5
22.4
12.5
16.0
18.9
13.5
1.5
1.5
-55 to 125°C
-55 to 125°C
Min.
Min.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
ILD
), 0V to threshold
Max.
Max.
16.4
21.3
12.0
15.5
20.0
24.5
14.0
18.0
18.5
24.0
13.5
17.0
20.0
15.0
1.5
1.5
Unit
Unit
ns
ns
ns
ns
ns
V