cbt3857 NXP Semiconductors, cbt3857 Datasheet - Page 5

• Manufacturer Part Number: cbt3857
• Description: 10-bit Bus Switch With 10 Kohm Pull-down Termination Resistors
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC WAVEFORMS
V
1999 Sep 14
M
Output Control
10-bit bus switch with 10 k pull-down
termination resistors
OUTPUT
Waveform 1. Input (An) to Output (Yn) Propagation Delays
Waveform 1
Waveform 2
= 1.5 V, V
INPUT
S1 at Open
(see Note) *
S1 at 4.3 V
(see Note)
(Low-level
Waveform 2. 3-State Output Enable and Disable Times
enabling
Output
Output
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.
t
* V
PZH
IN
t
PZL
IH
= GND to 3.0 V
1.375V
= 3.0V with 25 input line impedance
t
PLH
V
REF
1.25 V
1.25 V
1.25V
t
PHZ
t
PLZ
1.375V
V
t
REF
PHL
V
V
OL
OH
+ 0.15V
– 0.15V
1.25V
SA00514
SA00513
V
V
3.5V
V
V
0V
IH
IL
OL
OH
(AC)
2.75 V
0 V
V
V
(AC)
OH
OL
5
1. All input pulses are supplied by generators having the following
2. The outputs are measured one at a time with one transition per
TEST CIRCUIT AND WAVEFORMS
NOTES:
characteristics: PRR
measurement.
DEFINITIONS
C
From Output
Under Test
L
=
C
Load capacitance includes jig and probe capacitance
L
= 30 pF
t
t
PHZ
10 MHz, Z
PLZ
TEST
t
pd
/t
/t
PZL
PZH
500
Load Circuit
500
O
= 50 , t
open
4.3 V
GND
S1
S1
r
Product specification
CBT3857
4.3 V
GND
2.5 ns, t
Open
SA00515
f
2.5 ns.