Nxp Semiconductors CBT3126 User Manual
CBT3126_2
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 02 — 23 October 2008
5 of 15
NXP Semiconductors
CBT3126
Quad FET bus switch
[1]
All typical values are measured at V
CC
= 5 V; T
amb
= 25
°
C.
[2]
This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND.
[3]
Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. ON resistance is
determined by the lowest voltage of the two (A or B) terminals.
determined by the lowest voltage of the two (A or B) terminals.
10. Dynamic characteristics
[1]
This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical ON
resistance of the switch and a load capacitance, when driven by an ideal voltage source (zero output impedance).
resistance of the switch and a load capacitance, when driven by an ideal voltage source (zero output impedance).
[2]
t
PLH
and t
PHL
are the same as t
pd
;
t
PZL
and t
PZH
are the same as t
en
;
t
PLZ
and t
PHZ
are the same as t
dis
.
11. AC waveforms
R
ON
ON resistance
V
CC
= 4.0 V
V
I
= 2.4 V; I
I
= 15 mA
-
16
22
Ω
V
CC
= 4.5 V
V
I
= 0 V; I
I
= 64 mA
-
5
7
Ω
V
I
= 0 V; I
I
= 30 mA
-
5
7
Ω
V
I
= 2.4 V; I
I
= 15 mA
-
10
15
Ω
Table 6.
Static characteristics
…continued
T
amb
=
−
40
°
C to +85
°
C.
Symbol
Parameter
Conditions
Min
Typ
[1]
Max
Unit
Table 7.
Dynamic characteristics
T
amb
=
−
40
°
C to +85
°
C; V
CC
= 4.5 V to 5.5 V; for test circuit see
Symbol
Parameter
Conditions
Min
Max
Unit
t
pd
propagation delay
nA to nB or nB to nA; see
-
0.25
ns
t
en
enable time
OE to nA or nB; see
1.6
4.5
ns
t
dis
disable time
OE to nA or nB; see
1.0
5.4
ns
Measurement points are given in
V
OL
and V
OH
are typical voltage output levels that occur with the output load.
Fig 5.
The input (nA, nB) to output (nB, nA) propagation delay times
001aai367
V
M
V
M
V
M
V
M
V
I
input
0 V
V
OH
output
V
OL
t
PHL
t
PLH