fxlh1t45 Fairchild Semiconductor, fxlh1t45 Datasheet - Page 7

• Manufacturer Part Number: fxlh1t45
• Description: Fxlh1t45 Low Voltage 1-bit Bi-directional Level Translator With Configurable Voltage Supplies And Bushold Data Inputs
• Manufacturer: Fairchild Semiconductor

©2006 Fairchild Semiconductor Corporation
FXLH1T45 Rev. 1.0.4
AC Electrical Characteristics
V
V
Note:
8. The enable time, t
Capacitance
t
t
Symbol
PZH
PZH
CCA
CCA
t
t
t
t
Symbol
Symbol
PLH
PHZ
PLH
PHZ
specifies the worst-case delay from the time the T/R pin is switched until a valid output signal is expected. For example, to change
direction to B-to-A operation, the T/R pin is switched from HIGH-to-LOW. The enable time for this case is found by adding the
disable time for T/R to B to the propagation delay for B to A. The formulas for calculating enable times are the following:
t
t
t
t
PZH
PZL
PZH
PZL
C
C
C
, t
I/O
PD
, t
IN
, t
, t
, t
, t
PZL
PZL
(T/R to A) = t
(T/R to B) = t
= 1.4V to 1.6V
= 1.1V to 1.3V
(T/R to A) = t
(T/R to B) = t
PHL
PHL
PLZ
PLZ
(8)
(8)
Input Capacitance Control Pin (T/R)
Input/Output Capacitance A
Power Dissipation Capacitance
Propagation Delay A to B
Propagation Delay B to A
Output Enable
Output Enable
Output Disable
Output Disable
Propagation Delay A to B
Propagation Delay B to A
Output Disable
Output Disable
Output Enable
Output Enable
PHZ
PHZ
PZH
PLZ
PLZ
Parameter
Parameter
(T/R to B) + t
(T/R to B) + t
(T/R to A) + t
(T/R to A) + t
or t
Parameter
PZL
T/R
T/R
T/R
T/R
T/R
T/R
T/R
T/R
, is the time for the FXLH1T45 to return to active operation after a direction change. The enable time
to B
to A
to B
to A
to B
to A
to B
to A
PLH
PHL
PLH
PHL
(B to A)
(B to A)
(A to B)
(A to B)
3.0V to 3.6V
3.0V to 3.6V
Min.
Min.
0.5
0.6
n
1.5
1.0
0.4
1.0
0.8
1.4
2.8
2.4
1.0
2.0
, B
V
V
CCB
(Continued)
CCB
n
Ports V
Max.
Max.
10.3
12.9
13.0
22.0
28.0
37.0
15.0
15.0
4.3
6.8
=
6.1
6.0
=
V
V
F = 10MHz
2.3V to 2.7V
Min.
2.3V to 2.7V
Min.
CCA
CCA
CCA
0.5
0.8
1.5
1.2
0.4
1.0
1.0
1.4
3.0
2.1
0.7
2.0
V
V
CCB
CCB
= V
= V
= V
7
Max.
Max.
10.8
13.1
22.0
19.0
29.0
12.0
4.8
6.9
6.2
6.0
=
CCB
CCB
CCB
7.0
7.0
=
T
T
A
A
Conditions
= 3.3V, V
= 3.3V, V
= 3.3V, V
= −40°C to +85°C
= −40°C to +85°C
Min.
Min.
1.0
0.9
2.0
1.8
0.9
1.0
1.2
1.5
3.2
2.5
1.0
2.0
1.65V to
1.65V to
V
V
1.95V
1.95V
CCB
CCB
I
I
I
Max.
Max.
12.0
13.3
22.0
20.0
30.0
12.0
= 0V or V
= 0V or V
= 0V or V
6.0
7.1
6.2
6.0
=
8.0
8.0
=
1.4V to 1.6V
1.4V to 1.6V
Min.
Min.
1.0
1.0
2.0
2.5
1.5
1.0
1.3
1.5
3.3
3.5
2.0
2.0
V
V
CCA/B
CCA/B
CC
CCB
CCB
,
Max.
Max.
13.3
14.8
22.0
21.5
32.0
10.0
12.0
7.3
7.3
7.5
6.0
=
9.5
=
T
A
Typical
1.1V to 1.3V
1.1V to 1.3V
Min.
Min.
= +25°C
1.5
1.3
2.5
3.3
2.0
1.0
2.0
2.0
4.0
4.0
2.0
2.0
20.0
4.0
5.0
V
V
CCB
CCB
Max.
Max.
22.0
28.0
27.5
18.0
24.0
24.0
36.0
44.0
20.0
12.0
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9.5
6.0
=
=
Units
Units
Units
pF
pF
pF
ns
ns
ns
ns
ns
ns