74ABT2245 Philips Semiconductors, 74ABT2245 Datasheet - Page 6

• Manufacturer Part Number: 74ABT2245
• Description: Octal transceiver with direction pin with 30ohm series termination resistors 3-State
• Manufacturer: Philips Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
GND = 0V; t
AC WAVEFORMS
V
TEST CIRCUIT AND WAVEFORMS
1998 Jan 16
M
SYMBOL
Octal transceiver with direction pin
and 30 series termination resistors (3-State)
= 1.5V, V
t
t
t
t
t
t
PLH
PHL
PZH
PHZ
An or Bn
PZL
PLZ
OUTPUT
Waveform 1. Waveforms Showing the Input to Output
Bn or An
INPUT
DEFINITIONS
C
From Output
Under Test
L
=
R
IN
= t
Propagation delay
An to Bn or Bn to An
Output enable time
to High and Low level
Output disable time
from High and Low Level
C
= GND to 3.0V
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
L
F
= 50 pF
= 2.5ns; C
V
M
t
PLH
Propagation Delays
PARAMETER
t
t
PHZ
PLZ
TEST
t
L
pd
/t
/t
PZL
PZH
= 50pF, R
V
500
M
Load Circuit
500
open
open
7 V
L
S1
= 500
S1
V
M
t
7 V
GND
PHL
SA00012
Open
WAVEFORM
SA00124
V
M
1
2
2
6
Min
1.0
1.0
1.3
3.0
1.5
1.0
Waveform 2. Waveforms Showing the 3-State Output Enable
OUTPUT
OUTPUT
OE
INPUT
T
V
amb
CC
Typ
= +5.0V
2.8
3.9
3.5
5.5
4.0
3.4
= +25 C
V
Max
M
4.2
5.0
4.6
7.0
5.4
4.6
t
t
PZL
PZH
LIMITS
and Disable Times
V
V
T
M
M
amb
V
Min
1.0
1.0
1.3
3.0
1.5
1.0
CC
= –40 C to +85 C
= +5.0V 0.5V
V
74ABT2245
M
t
t
Max
PLZ
PHZ
4.7
5.4
5.5
7.8
6.3
5.0
Product specification
UNIT
3.5V
V
V
V
V
0V
SA00314
OL
OL
OH
OH
ns
ns
ns
+ 0.3V
– 0.3V