Datasheet

SN74ALS166
PARALLEL-LOAD 8-BIT SHIFT REGISTER
SDAS156D – APRIL 1982 – REVISED AUGUST 2000
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.5 V
V
OH
V
CC
= 4.5 V to 5.5 V, I
OH
= –0.4 mA V
CC
–2 V
V
OL
V
CC
=45V
I
OL
= 4 mA 0.25 0.4
V
V
OL
V
CC
=
4
.
5
V
I
OL
= 8 mA 0.35 0.5
V
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.4 V –0.1 mA
I
O
‡
V
CC
= 5.5 V, V
O
= 2.25 V –30 –112 mA
I
CC
V
CC
= 5.5 V, See Note 2 14 24 mA
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
‡
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
OS
.
NOTE 2: With 4.5 V applied to SER and all other inputs, except the clock, grounded, I
CC
is measured after a clock transition from 0 V to 4.5 V.
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
MIN MAX UNIT
f
clock
Clock frequency 45 MHz
CLR low 9
t
w
Pulse duration
CLK high
10
ns
CLK low 10
↑
SH/LD 16
t
su
Setup time before CLK
↑
Data 7
ns
CLR inactive 11
t
h
Hold time, data after CLK↑ 3 ns
switching characteristics over recommended operating conditions (unless otherwise noted)
(see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN TYP
†
MAX UNIT
f
max
45 MHz
t
PHL
CLR
Q
H
4 9 14 ns
t
PLH
CLK
Q
H
2 7 12
ns
t
PHL
CLK
Q
H
2 9 13
ns
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.