參數(shù)資料
型號: 74ACT899QCQB
廠商: National Semiconductor Corporation
英文描述: 9-Bit Latchable Transceiver with Parity Generator/Checker
中文描述: 9位鎖存收發(fā)器奇偶發(fā)生器/檢查
文件頁數(shù): 10/14頁
文件大?。?/td> 214K
代理商: 74ACT899QCQB
AC Electrical Characteristics
74AC
74AC
V
CC
*
(V)
T
A
e a
25
§
C
C
L
e
50 pF
T
A
e b
40
§
C
to
a
85
§
C
C
L
e
50 pF
Fig.
No.
Symbol
Parameter
Units
Min
Typ
Max
Min
Max
t
PLH
t
PHL
Propagation Delay
A
n
, B
n
to B
n
, A
n
3.3
5.0
2.5
1.5
12.0
7.0
15.0
10.0
2.5
1.5
15.5
10.5
ns
1
t
PLH
t
PHL
Propagation Delay
APAR, BPAR to BPAR, APAR
3.3
5.0
2.5
1.5
9.5
5.5
12.0
8.0
2.5
1.5
12.5
8.5
ns
1
t
PLH
t
PHL
Propagation Delay
A
n
, B
n
to BPAR, APAR
3.3
5.0
3.0
2.0
13.5
8.0
16.5
11.0
3.0
2.0
17.0
11.5
ns
2
t
PLH
t
PHL
Propagation Delay
A
n
, B
n
to ERRA, ERRB
3.3
5.0
2.5
1.5
12.5
7.5
15.5
10.5
2.5
1.5
16.5
11.0
ns
3
t
PLH
t
PHL
Propagation Delay
ODD/EVEN to ERRA, ERRB
3.3
5.0
2.5
1.5
12.5
7.5
15.5
10.5
2.5
1.5
16.5
11.0
ns
4
t
PLH
t
PHL
Propagation Delay
ODD/EVEN to APAR, BPAR
3.3
5.0
3.0
2.0
12.5
7.5
15.5
10.5
3.0
2.0
16.5
11.0
ns
5
t
PLH
t
PHL
Propagation Delay
APAR, BPAR to ERRA, ERRB
3.3
5.0
2.0
1.5
12.5
7.5
15.5
10.5
2.0
1.5
16.5
11.0
ns
6
t
PLH
t
PHL
Propagation Delay
SEL to APAR, BPAR
3.3
5.0
2.0
1.5
10.0
6.0
12.5
8.5
2.0
1.5
13.5
9.0
ns
9
t
PLH
t
PHL
Propagation Delay
LEB, LEA to A
n
, B
n
3.3
5.0
4.0
2.5
12.0
7.0
15.5
10.5
4.0
2.5
16.5
11.0
ns
10, 11
t
PLH
t
PHL
Propagation Delay
LEB, LEA to APAR, BPAR
3.3
5.0
3.0
2.0
13.5
8.0
17.0
11.5
3.0
2.0
18.0
12.0
ns
10, 11
t
PLH
t
PHL
Propagation Delay
LEB, LEA to ERRA, ERRB
3.3
5.0
4.0
2.5
13.5
8.0
17.0
11.5
4.0
2.5
18.0
12.0
ns
12
t
PZH
t
PZL
Output Enable Time
GBA, GAB to A
n
, B
n
3.3
5.0
3.0
2.0
12.5
7.5
15.5
10.5
3.0
2.0
16.5
11.0
ns
7, 8
t
PZH
t
PZL
Output Enable Time
GBA, GAB to APAR, BPAR
3.3
5.0
2.5
1.5
10.5
6.0
13.5
9.0
2.5
1.5
14.0
9.5
ns
7, 8
t
PHZ
t
PLZ
Output Disable Time
GBA, GAB to A
n
, B
n
3.3
5.0
1.5
1.0
11.0
6.5
14.0
9.5
1.5
1.0
14.0
9.5
ns
7, 8
t
PHZ
t
PHL
Output Disable Time
GBA, GAB to APAR, BPAR
3.3
5.0
1.5
1.0
11.0
6.5
14.0
9.5
1.5
1.0
14.0
9.5
ns
7, 8
*
Voltage Range 5.0 is 5.0V
g
0.5V.
Voltage Range 3.3 is 3.3V
g
0.3V.
10
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