參數(shù)資料
型號: M54HCT241F1R
廠商: 意法半導體
英文描述: OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HCT240: INVERTED - HCT241/244 NON INVERTED
中文描述: 八路總線緩沖器與三態(tài)輸出HCT240:倒立- HCT241/244非反相
文件頁數(shù): 6/12頁
文件大小: 262K
代理商: M54HCT241F1R
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
-55 to 125
o
C
54HC
Min.
Max.
12
Max.
15
Max.
18
t
TLH
t
THL
t
PLH
t
PHL
Output Transition
Time
Propagation
Delay Time
4.5
50
7
ns
4.5
4.5
4.5
4.5
4.5
4.5
4.5
50
150
50
150
50
150
50
15
21
15
21
17
23
16
22
30
25
33
30
38
30
28
38
31
41
38
48
38
33
45
38
50
45
57
45
ns
ns
ns
ns
ns
ns
ns
t
PLH
t
PHL
Propagation
Delay Time
t
PZL
t
PZH
Output Enable
Time
R
L
= 1K
R
L
= 1K
R
L
= 1K
t
PLZ
t
PHZ
C
IN
C
OUT
Output Disable
Time
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance
5
10
10
10
pF
pF
10
C
PD
(*)
HCT240
HCT241/244
33
31
pF
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by thefollowingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/8(per circuit)
TEST CIRCUIT I
CC
(Opr.)
HCT240
M54/M74HCT240/241/244
6/12
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