HD74LS93
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Input voltage
Symbol
V
IH
V
IL
V
OH
Output voltage
V
OL
Any reset
A input
B input
Any reset
A input
B input
Any reset
A input
B input
Short-circuit output
current
Supply current
Input clamp voltage
I
OS
I
CC
***
V
IK
min.
2.0
—
2.7
—
—
—
—
—
—
—
—
—
—
—
–20
—
—
typ.*
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
9
—
max.
—
0.8
—
0.4
0.5
–0.4
–2.4
–1.6
20
40
40
0.1
0.2
0.2
–100
15
–1.5
mA
mA
V
Unit
V
V
V
V
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
= 0.4 V
Condition
I
IL
mA
Input
current
I
IH
µA
V
CC
= 5.25 V, V
I
= 2.7 V
V
I
= 7 V
V
I
= 5.5 V
V
I
= 5.5 V
V
CC
= 5.25 V
V
CC
= 5.25 V
V
CC
= 4.75 V, I
IN
= –18 mA
I
I
mA
V
CC
= 5.25 V
Notes: * V
CC
= 5 V, Ta = 25
°
C
** Q
A
output is tested at specified I
OL
plus the limit value of IIL for the B input. This permits driving the B input
while maintaining full fan-out capability.
*** I
CC
is measured with all outputs open, both R
0
inputs grounded following momentary connection to 4.5 V, and
all other inputs grounded.
Switching Characteristics
(V
CC
= 5 V, Ta = 25°C)
Item
Maximum count frequency
Symbol
f
max
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PHL
Inputs
A
B
A
A
B
B
B
Set-to-0
Outputs
Q
A
Q
B
Q
A
Q
D
Q
B
Q
C
Q
D
Q
A
to Q
D
min.
32
16
—
—
—
—
—
—
—
—
—
—
—
typ.
42
—
10
12
46
46
10
14
21
23
34
34
26
max.
—
—
16
18
70
70
16
21
32
35
51
51
40
Unit
MHz
Condition
Propagation delay time
ns
C
L
= 15 pF,
R
L
= 2 kΩ
Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-
0100)".
Rev.2.00, Feb.18.2005, page 4 of 8
RENESAS [ RENESAS TECHNOLOGY CORP ]
