Philips CBTD3306 Manual Do Utilizador
Philips Semiconductors
Product data
CBTD3306
Dual bus switch with level shifting
2001 Nov 08
4
AC CHARACTERISTICS
T
amb
= –40 to +85
°
C; C
L
= 50 pF
TO
LIMITS
SYMBOL
PARAMETER
FROM (INPUT)
TO
(OUTPUT)
V
CC
= +5.0 V
±
0.5 V
UNIT
(OUTPUT)
MIN
MAX
t
pd
Propagation delay
1
A or B
B or A
—
0.25
ns
t
en
Output enable time
to High and Low level
to High and Low level
OE
A or B
1
5
ns
t
dis
Output disable time
from High and Low level
from High and Low level
OE
A or B
1
4.9
ns
NOTE:
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,
when driven by an ideal voltage source (zero output impedance).
AC WAVEFORMS
V
M
= 1.5 V, V
IN
= GND to 3.0 V
INPUT
1.5 V
OUTPUT
t
PLH
t
PHL
SA00028
1.5 V
1.5 V
1.5 V
3 V
0 V
V
OH
V
OL
Waveform 1. Input to Output Propagation Delays
Output Control
(Low-level
enabling )
1.5 V
t
PZH
t
PHZ
V
OH
V
OL
t
PZL
t
PLZ
3.5 V
0 V
V
OL
+ 0.3 V
V
OH
– 0.3 V
SA00029
1.5 V
1.5 V
1.5 V
0 V
3 V
Output
Waveform 1
S1 at 7 V
(see Note)
Note:
Waveform 1 is for an output with internal conditions such that
the output is low except when disabled by the output control.
Waveform 1 is for an output with internal conditions such that
the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that
the output is high except when disabled by the output control.
the output is high except when disabled by the output control.
Output
Waveform 2
S1 at Open
(see Note)
Waveform 2. 3-State Output Enable and Disable Times
NOTES:
1. t
1. t
PLZ
and t
PHZ
are the same as t
dis
.
2. t
PZL
and t
PZH
are the same as t
en
.
3. t
PLH
and t
PHL
are the same as t
pd
.
TEST CIRCUIT AND WAVEFORMS
C
L
= 50 pF
500
Ω
Load Circuit
DEFINITIONS
C
L
=
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
see AC CHARACTERISTICS for value.
TEST
S1
t
pd
open
t
PLZ
/t
PZL
7 V
t
PHZ
/t
PZH
open
SA00012
500
Ω
From Output
Under Test
S1
7 V
Open
GND
NOTES:
1. All input pulses are supplied by generators having the following
1. All input pulses are supplied by generators having the following
characteristics: PRR
≤
10 MHz, Z
O
= 50
Ω
, t
r
≤
2.5 ns, t
f
≤
2.5 ns.
2. The outputs are measured one at a time with one transition per
measurement.