Datasheet

SN75ALS162
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVER
SLLS020C – JUNE 1986 – REVISED MAY 1995
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended range of operating free-air temperature, V
CC
= 5 V
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST
CONDITIONS
MIN TYP
†
MAX UNIT
t
PLH
Propagation delay time,
low- to high-level output
Terminal
Bus
C
L
= 30 pF,
10 20
ns
t
PHL
Propagation delay time,
high- to low-level output
Terminal
B
u
s
L
See Figure 1
12 20
ns
t
PLH
Propagation delay time,
low- to high-level output
Bus
Terminal
C
L
= 30 pF,
5 10
ns
t
PHL
Propagation delay time,
high- to low-level output
B
u
s
Terminal
L
,
See Figure 2
7 14
ns
t
PZH
Output enable time to high level
Bus
30
t
PHZ
Output disable time from high level
TE DC or SC
Bus
(
ATN, EOI,
C
L
= 15 pF,
20
ns
t
PZL
Output enable time to low level
TE
,
DC
,
or
SC
(,,
REN, IFC,
dDAV)
L
,
See Figure 3
45
ns
t
PLZ
Output disable time from low level
and DAV)
20
t
PZH
Output enable time to high level 30
t
PHZ
Output disable time from high level
TE DC or SC
Terminal
C
L
= 15 pF,
25
ns
t
PZL
Output enable time to low level
TE
,
DC
,
or
SC
Terminal
L
See Figure 4
30
ns
t
PLZ
Output disable time from low level 25
†
All typical values are at T
A
= 25°C.
PARAMETER MEASUREMENT INFORMATION
LOAD CIRCUIT
VOLTAGE WAVEFORMS
V
OL
V
OH
0 V
3 V
1.0 V
1.5 V
See Note B
2.2 V
1.5 V
Bus
Output
Terminal
Input
Test Point
C
L
=30 pF
(see Note A)
480 Ω
200 Ω
From (bus)
Output Under
Test
5 V
t
PLH
t
PHL
NOTES: A. C
L
includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t
r
≤ 6 ns, t
f
≤ 6 ns, Z
O
= 50 Ω.
Figure 1. Terminal-to-Bus Load Circuit and Voltage Waveforms