參數(shù)資料
型號： 75F657SC
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Octal Bidirectional Transceiver with 8-Bit Parity Generator/Checker and 3-STATE Outputs
中文描述： F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝： 0.300 INCH, MS-013, SOIC-24
文件頁數(shù)： 5/7頁
文件大小： 61K
代理商： 75F657SC
5
www.fairchildsemi.com
7
AC Electrical Characteristics
Note 3:
These delay times reflect the 3-STATE recovery time only and not the signal time through the buffers or the parity check circuity. To assure VALID
information at the ERROR pin, time must be allowed for the signal to propagate through the drivers (B to A), through the parity check circuitry (same as A to
PARITY), and to the ERROR output after the ERROR pin has been enabled (Output Enable times). VALID data at the ERROR pin
≥
(A to PARITY)
+
(Output
Enable Time).
Symbol
Parameter
T
A
=
+
25
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Typ
4.5
4.9
10.1
T
A
=
55
°
C to
+
125
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
2.5
3.0
5.5
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
2.5
3.0
6.0
Units
Min
2.5
3.0
6.5
Max
8.0
7.5
14.0
Max
9.5
8.5
18.0
Max
9.0
8.0
16.0
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
A
n
to B
n
, B
n
to A
n
Propagation Delay
ns
ns
A
n
to Parity
Propagation Delay
7.0
4.5
4.5
10.9
7.8
8.8
15.0
11.0
12.0
5.5
4.0
4.5
20.5
14.0
16.5
6.0
4.0
4.5
16.5
13.0
13.5
ns
ODD/EVEN to PARITY
Propagation Delay
4.5
4.5
7.5
8.2
11.0
12.0
4.0
4.5
14.0
16.5
4.0
4.5
13.0
13.5
ns
ODD/EVEN to ERROR
Propagation Delay
8.0
8.0
14.0
15.0
20.5
21.5
7.5
7.5
27.0
28.5
7.5
7.5
23.0
23.5
ns
B
n
to ERROR
Propagation Delay
7.0
7.5
10.8
11.8
15.5
16.5
6.0
6.5
20.0
22.0
6.0
7.5
17.0
18.5
ns
PARITY to ERROR
Output Enable Time
3.0
4.0
5.0
6.5
8.0
10.0
2.5
3.5
11.0
13.5
2.5
3.5
9.5
11.0
ns
OE to A
n
/B
n
Output Disable Time
1.0
1.0
4.5
4.9
8.0
7.5
1.0
1.0
9.5
8.5
1.0
1.0
9.0
8.0
ns
OE to A
n
/B
n
Output Enable Time
3.0
4.0
5.0
7.7
8.0
10.0
2.5
3.5
11.0
13.5
2.5
3.5
9.5
11.0
ns
OE to ERROR (Note 3)
Output Disable Time
1.0
1.0
4.5
4.9
8.0
7.5
1.0
1.0
9.5
8.5
1.0
1.0
9.0
8.0
ns
OE to ERROR
Output Enable Time
3.0
4.0
5.0
7.7
8.0
10.0
2.5
3.5
11.0
13.5
2.5
3.5
9.5
11.0
ns
OE to PARITY
Output Disable Time
1.0
1.0
4.6
5.1
8.0
7.5
1.0
1.0
9.5
8.5
1.0
1.0
9.0
8.0
ns
OE to PARITY
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