SN55ALS160, SN75ALS160
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS018D – JUNE 1986 – REVISED MAY 1995
8
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
C
= 30 pF,
7 20
t
PHL
Propagation delay time, high- to low-level output
u
See Figure 1
8 20
t
PLH
Propagation delay time, low- to high-level output
C
= 30 pF,
7 14
t
PHL
Propagation delay time, high- to low-level output
u
See Figure 2
9 14
t
PZH
Output enable time to high level 19 30
t
PHZ
Output disable time from high level
C
= 15 pF,
5 12
t
PZL
Output enable time to low level
u
See Figure 3
16 35
t
PLZ
Output disable time from low level 9 20
t
PZH
Output enable time to high level 13 30
t
PHZ
Output disable time from high level
C
= 15 pF,
12 20
t
PZL
Output enable time to low level
See Figure 4
12 20
t
PLZ
Output disable time from low level 11 20
t
en
Output pullup enable time
C
L
= 15 pF,
11 22
t
dis
Output pullup disable time
u
See Figure 5
6 12
†
Typical values are at T
A
= 25°C.
PARAMETER MEASUREMENT INFORMATION
3 V
0
V
OH
V
OH
t
PHL
2.2 V
t
PLH
1.5 V
B Output
D Input
C
L
= 30 pF
[ = 50 pF]
(see Note B)
Output
5 V
[7 V]
200 Ω
[500 Ω]
B
3 V
PE
D
50 Ω
3 V
TE
Generator
(see Note A)
TEST CIRCUIT VOLTAGE WAVEFORMS
1 V
480 Ω
[500 Ω]
1.5 V
[ ] denotes the SN55ALS160 military test conditions.
NOTES: A. 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.
B. C
L
includes probe and jig capacitance.
Figure 1. Terminal-to-Bus Test Circuit and Voltage Waveforms
