Philips Semiconductors Product data
CBTD3306Dual bus switch with level shifting
2001 Nov 08 4
AC CHARACTERISTICS
Tamb = –40 to +85 °C; CL = 50 pF
TO
LIMITS
SYMBOL PARAMETER FROM (INPUT) TO
(OUTPUT)
VCC = +5.0 V ±0.5 V UNIT
(OUTPUT)
MIN MAX
tpd Propagation delay1A or B B or A — 0.25 ns
ten Output enable time
to High and Low level OE A or B 1 5 ns
tdis Output disable time
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,
when driven by an ideal voltage source (zero output impedance).
AC WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V
INPUT
1.5 V
OUTPUT
tPLH tPHL
SA00028
1.5 V
1.5 V 1.5 V
3 V
0 V
VOH
VOL
Waveform 1. Input to Output Propagation Delays
Output Control
(Low-level
enabling )
1.5 V
tPZH tPHZ VOH
VOL
tPZL tPLZ 3.5 V
0 V
VOL + 0.3 V
VOH – 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 2 is for an output with internal conditions such that
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. tPLZ and tPHZ are the same as tdis.
2. tPZL and tPZH are the same as ten.
3. tPLH and tPHL are the same as tpd.
TEST CIRCUIT AND WAVEFORMS
CL = 50 pF 500 Ω
Load Circuit
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
TEST S1
tpd open
tPLZ/tPZL 7 V
tPHZ/tPZH 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
characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤2.5 ns, tf ≤2.5 ns.
2. The outputs are measured one at a time with one transition per
measurement.