74lvc2t45

Manufacturer Part Number74lvc2t45
DescriptionDual Supply Translating Transceiver; 3-state
ManufacturerNXP Semiconductors
74lvc2t45 datasheet
 
1
2
3
4
5
6
7
8
9
10
11
Page 11
12
Page 12
13
Page 13
14
Page 14
15
Page 15
16
Page 16
17
Page 17
18
Page 18
19
Page 19
20
Page 20
21
22
23
24
25
26
27
28
29
30
31
32
Page 11/32

Download datasheet (172Kb)Embed
PrevNext
NXP Semiconductors
Table 11.
Typical power dissipation capacitance at V
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
C
power dissipation
A port: (direction A to B);
PD
capacitance
B port: (direction B to A)
A port: (direction B to A);
B port: (direction A to B)
[1]
C
is used to determine the dynamic power dissipation (P
PD
2
P
= C
V
f
N + (C
D
PD
CC
i
L
f
= input frequency in MHz;
i
f
= output frequency in MHz;
o
C
= load capacitance in pF;
L
V
= supply voltage in V;
CC
N = number of inputs switching;
2
(C
V
f
) = sum of the outputs.
L
CC
o
[2]
f
= 10 MHz; V
= GND to V
; t
i
I
CC
r
Table 12.
Dynamic characteristics for temperature range 40 C to +85 C
Voltages are referenced to GND (ground = 0 V); for test circuit see
Symbol Parameter
Conditions
V
= 1.4 V to 1.6 V
CC(A)
t
LOW to HIGH
A to B
PLH
propagation delay
B to A
t
HIGH to LOW
A to B
PHL
propagation delay
B to A
t
HIGH to OFF-state
DIR to A
PHZ
propagation delay
DIR to B
t
LOW to OFF-state
DIR to A
PLZ
propagation delay
DIR to B
t
OFF-state to HIGH
DIR to A
PZH
propagation delay
DIR to B
t
OFF-state to LOW
DIR to A
PZL
propagation delay
DIR to B
V
= 1.65 V to 1.95 V
CC(A)
t
LOW to HIGH
A to B
PLH
propagation delay
B to A
t
HIGH to LOW
A to B
PHL
propagation delay
B to A
t
HIGH to OFF-state
DIR to A
PHZ
propagation delay
DIR to B
t
LOW to OFF-state
DIR to A
PLZ
propagation delay
DIR to B
74LVC_LVCH2T45_2
Product data sheet
74LVC2T45; 74LVCH2T45
= V
CC(A)
1.8 V
in W).
D
2
V
f
) where:
CC
o
= t
= 1 ns; C
= 0 pF; R
=
.
f
L
L
1.5 V
0.1 V 1.8 V
Min
Max
Min
2.8
21.3
2.4
2.8
21.3
2.6
2.6
19.3
2.2
2.6
19.3
2.4
3.0
18.7
3.0
3.5
24.8
3.5
2.4
11.4
2.4
2.8
18.3
3.0
[1]
-
39.6
-
[1]
-
32.7
-
[1]
-
44.1
-
[1]
-
38.0
-
2.6
19.1
2.2
2.4
17.6
2.2
2.4
17.3
2.0
2.2
15.3
2.0
2.9
17.1
2.9
3.2
24.1
3.2
2.4
10.5
2.4
2.5
17.6
2.6
Rev. 02 — 5 February 2009
Dual supply translating transceiver; 3-state
[1][2]
and T
= 25 C
CC(B)
amb
V
and V
CC(A)
CC(B)
2.5 V
3.3 V
2
3
3
15
16
16
Figure
9; for wave forms see
Figure 7
V
CC(B)
0.15 V 2.5 V
0.2 V 3.3 V
0.3 V 5.0 V
Max
Min
Max
Min
Max
17.6
2.0
13.5
1.7
11.8
19.1
2.3
14.9
2.3
12.4
15.3
1.8
11.8
1.7
10.9
17.3
2.3
13.2
2.2
11.3
18.7
3.0
18.7
3.0
18.7
23.6
3.0
11.0
3.3
11.3
11.4
2.4
11.4
2.4
11.4
17.2
2.5
9.4
3.0
10.1
36.3
-
24.3
-
22.5
29.0
-
24.9
-
23.2
40.9
-
24.2
-
22.6
34.0
-
30.5
-
29.6
17.7
2.2
9.3
1.7
7.2
17.7
2.3
16.0
2.1
15.5
14.3
1.6
8.5
1.8
7.1
14.3
2.1
12.9
2.0
12.6
17.1
2.9
17.1
2.9
17.1
21.9
2.7
11.5
3.0
10.3
10.5
2.4
10.5
2.4
10.5
16.0
2.2
9.2
2.7
8.4
Unit
5.0 V
4
pF
18
pF
and
Figure
8.
Unit
0.5 V
Min
Max
1.6
10.5 ns
2.2
12.0 ns
1.7
10.8 ns
2.3
11.0 ns
3.0
18.7 ns
2.8
10.3 ns
2.4
11.4 ns
2.5
9.4
ns
-
21.4 ns
-
21.9 ns
-
21.3 ns
-
29.5 ns
1.4
6.8
ns
1.9
15.1 ns
1.7
7.0
ns
1.8
12.2 ns
2.9
17.1 ns
2.5
8.2
ns
2.4
10.5 ns
2.4
7.1
ns
© NXP B.V. 2009. All rights reserved.
11 of 32