tc74hc7240af TOSHIBA Semiconductor CORPORATION, tc74hc7240af Datasheet - Page 4

• Manufacturer Part Number: tc74hc7240af
• Description: Octal Bus Buffer
• Manufacturer: TOSHIBA Semiconductor CORPORATION

AC Characteristics
Output transition time
Propagation delay
time
Output enable time
Output disable time
Input capacitance
Output capacitance
Power dissipation
capacitance
Note:
Characteristics
C
current consumption without load.
Average operating current can be obtained by the equation:
PD
I
is defined as the value of the internal equivalent capacitance which is calculated from the operating
CC
(opr) = C
Symbol
C
(input: t
t
t
t
t
C
t
t
t
t
C
TLH
THL
pZH
pHZ
pLH
pHL
pZL
pLZ
OUT
PD
PD
IN
(Note) TC74HC7244A
･V
CC
r
R
R
TC74HC7240A
･f
= t
L
L
IN
= 1 k Ω
= 1 k Ω
f
+ I
= 6 ns)
CC
⎯
⎯
/8 (per bit)
Test Condition
⎯
⎯
CL (pF) V
150
150
50
50
50
50
4
CC
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)
Min
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
TC74HC7240,7244AP/AF
Ta = 25°C
Typ.
25
50
15
13
67
20
17
68
21
16
84
26
20
48
21
19
10
33
34
7
6
5
Max
125
165
150
165
150
60
12
10
25
21
33
28
30
26
37
31
30
26
10
⎯
⎯
⎯
Min
− 40 to 85°C
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Ta =
2007-10-01
Max
155
205
190
230
190
75
15
13
31
26
41
35
38
32
46
39
38
32
10
⎯
⎯
⎯
Unit
pF
pF
pF
ns
ns
ns
ns