HD74LS166A
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Clock frequency
Clock and clear pulse width
Mode control setup time
Data setup time
Hold time
Symbol
V
CC
I
OH
I
OL
T
opr
ƒ
clock
t
w
t
su
t
su
t
h
Min
4.75
—
—
–20
0
20
30
20
0
Typ
5.00
—
—
25
—
—
—
—
—
Max
5.25
–400
8
75
25
—
—
—
—
Unit
V
µA
mA
°C
MHz
ns
ns
ns
ns
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Input voltage
Symbol
V
IH
V
IL
V
OH
Output voltage
V
OL
I
IH
I
IL
I
I
Short-circuit output
current
Supply current**
Input clamp voltage
I
OS
I
CC
V
IK
min.
2.0
—
2.7
—
—
—
—
—
–20
—
—
typ.*
—
—
—
—
—
—
—
—
—
20
—
max.
—
0.8
—
0.4
0.5
20
–0.4
0.1
–100
32
–1.5
Unit
V
V
V
V
µA
mA
mA
mA
mA
V
Condition
V
CC
= 4.75 V, V
IH
= 2 V, V
IL
= 0.8 V,
I
OH
= –400
µA
I
OL
= 4 mA
V
CC
= 4.75 V, V
IH
= 2 V,
V
IL
= 0.8 V
I
OL
= 8 mA
V
CC
= 5.25 V, V
I
= 2.7 V
V
CC
= 5.25 V, V
I
= 0.4 V
V
CC
= 5.25 V, V
I
= 7 V
V
CC
= 5.25 V
V
CC
= 5.25 V
V
CC
= 4.75 V, I
IN
= –18 mA
Input current
Notes: * V
CC
= 5 V, Ta = 25°C
** With the outputs open, 4.5 V applied to the serial input and all other inputs except the clock grounded, I
CC
is
measured after a momentary ground, then 4.5 V, is applied to clock.
Switching Characteristics
(V
CC
= 5 V, Ta = 25°C)
Item
Maximum clock frequency
Propagation delay time
Symbol
ƒ
max
t
PHL
t
PHL
t
PLH
Inputs
Clear
Clock
min.
25
—
7
5
typ.
35
19
14
11
max.
—
30
25
20
Unit
MHz
ns
ns
ns
Condition
C
L
= 15 pF, R
L
= 2 kΩ
Rev.4.00, May 10, 2006, page 4 of 7
RENESAS [ RENESAS TECHNOLOGY CORP ]
