tc74hc7240af TOSHIBA Semiconductor CORPORATION, tc74hc7240af Datasheet - Page 4
tc74hc7240af
Manufacturer Part Number
tc74hc7240af
Description
Octal Bus Buffer
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TC74HC7240AF.pdf
(7 pages)
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