m54hc240k1 STMicroelectronics, m54hc240k1 Datasheet - Page 5

• Manufacturer Part Number: m54hc240k1
• Description: Hc240 Inverted - Hc241/244 Non Inverted Octal Bus Buffer With 3 State Outputs
• Manufacturer: STMicroelectronics

AC ELECTRICAL CHARACTERISTICS (C
CAPACITIVE CHARACTERISTICS
1) C
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
t
t
t
t
Symbol
Symbol
PLH
PZL
PLZ
TLH
C
C
C
PD
OUT
PD
IN
t
t
t
t
PZH
PHZ
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
THL
PHL
Output Transition
Time
Propagation Delay
Time
High Impedance
Output Enable
Time
High Impedance
Output Disable
Time
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance
(note 1)
Parameter
Parameter
V
V
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
(V)
5.0
5.0
5.0
CC
CC
Test Condition
Test Condition
(pF)
150
150
C
50
50
50
50
L
R
R
R
L
L
L
L
= 1 K
= 1 K
= 1 K
= 50 pF, Input t
Min.
Min.
T
T
A
A
r
Typ.
Typ.
= 25°C
= 25°C
25
36
12
10
51
17
14
48
16
14
63
21
18
32
15
14
10
31
= t
7
6
5
f
= 6ns)
Max.
Max.
130
125
165
125
60
12
10
90
18
15
26
22
25
21
33
28
25
21
10
CC(opr)
Value
Value
Min.
Min.
-40 to 85°C
-40 to 85°C
= C
Max.
Max.
PD
165
155
205
155
115
75
19
13
23
20
33
28
31
25
41
35
31
26
10
x V
CC
-55 to 125°C
-55 to 125°C
Min.
Min.
x f
IN
+ I
M54HC240
CC
Max.
Max.
135
195
190
250
190
90
18
15
27
23
39
33
38
32
50
43
38
32
10
/8 (per circuit)
Unit
Unit
pF
pF
pF
ns
ns
ns
ns
ns
ns
5/10