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參數資料
| 型號： | MM74HCT640 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Inverting Octal TRI-STATE Transceiver |
| 中文描述： | 反相八路三態收發器 |
| 文件頁數： | 3/4頁 |
| 文件大小： | 140K |
| 代理商： | MM74HCT640 |
AC Electrical Characteristics
MM54HCT640/MM74HCT640
V
CC
e
5.0V
g
10%, t
r
e
t
f
e
6 ns (unless otherwise specified)
T
A
e
25
§
C
74HCT
54HCT
Symbol
Parameter
Conditions
T
A
eb
40 to 85
§
C
T
A
eb
55 to 125
§
C
Units
Typ
Guaranteed Limits
t
PHL
, t
PLH
Maximum Output
Propagation Delay
C
L
e
50 pF
C
L
e
150 pF
R
L
e
1k
X
17
23
29
34
ns
24
30
38
45
ns
t
PZH
, t
PZL
Maximum Output
Enable Time
C
L
e
50 pF
23
30
38
45
ns
t
PHZ
, t
PLZ
Maximum Output
Disable Time
R
L
e
1k
X
C
L
e
50 pF
C
L
e
50 pF
21
30
38
45
ns
t
THL
, t
TLH
Maximum Output
Rise and Fall Time
8
12
15
18
ns
C
IN
Maximum Input
Capacitance
10
15
15
15
pF
C
OUT
Maximum Output/
Input Capacitance
20
25
25
25
pF
C
PD
Power Dissipation
Capacitance (Note 5)
(per output)
G
e
V
CC
G
e
GND
7
pF
pF
100
AC Electrical Characteristics
MM54HCT643/MM74HCT643
V
CC
e
5.0V, t
r
e
t
f
e
6 ns, T
A
e
25
§
C (unless otherwise specified)
Symbol
Parameter
Conditions
Typ
Guaranteed
Limits
Units
t
PHL
, t
PLH
Maximum Output
Propagation Delay
C
L
e
45 pF
16
20
ns
t
PZL
, t
PZH
Maximum Output
Enable Time
C
L
e
45 pF
R
L
e
1 k
X
C
L
e
5 pF
R
L
e
1 k
X
29
40
ns
t
PLZ
, t
PHZ
Maximum Output
Disable Time
20
25
ns
AC Electrical Characteristics
MM54HCT643/MM74HCT643
V
CC
e
5.0V
g
10%, t
r
e
t
f
e
6 ns (unless otherwise specified)
T
A
e
25
§
C
74HCT
54HCT
Symbol
Parameter
Conditions
T
A
eb
40 to 85
§
C
T
A
eb
55 to 125
§
C
Units
Typ
Guaranteed Limits
t
PHL
, t
PLH
Maximum Output
Propagation Delay
C
L
e
50 pF
C
L
e
150 pF
R
L
e
1 k
X
17
23
29
34
ns
24
30
38
45
ns
t
PZH
, t
PZL
Maximum Output
Enable Time
C
L
e
50 pF
23
30
38
45
ns
t
PHZ
, t
PLZ
Maximum Output
Disable Time
R
L
e
1 k
X
C
L
e
50 pF
C
L
e
50 pF
21
30
38
45
ns
ns
t
THL
, t
TLH
Maximum Output
Rise and Fall Time
8
12
15
18
ns
C
IN
Maximum Input
Capacitance
10
15
15
15
pF
C
OUT
Maximum Output/
Input Capacitance
20
25
25
25
pF
C
PD
Power Dissipation
Capacitance (Note 5)
(per output)
G
e
V
CC
G
e
GND
7
pF
pF
100
Note 5:
C
PD
determines the no load power consumption. P
D
e
C
PD
V
CC2
f
a
I
CC
V
CC
. The no load dynamic current consumption, I
S
e
C
PD
V
CC
a
I
CC
.
3
相關PDF資料 |
PDF描述 |
|---|---|
| MM74HCT640J | Inverting Octal TRI-STATE Transceiver |
| MM74HCT640N | Inverting Octal TRI-STATE Transceiver |
| MM74HCT643 | Inverting Octal TRI-STATE Transceiver |
| MM74HCT643J | Inverting Octal TRI-STATE Transceiver |
| MM74HCT643N | Inverting Octal TRI-STATE Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MM74HCT640J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Inverting Octal TRI-STATE Transceiver |
| MM74HCT640N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Inverting Octal TRI-STATE Transceiver |
| MM74HCT640WM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MM74HCT643 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Inverting Octal TRI-STATE Transceiver |
| MM74HCT643J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Inverting Octal TRI-STATE Transceiver |
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