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54F646BSCQB PDF预览

54F646BSCQB

更新时间: 2024-01-07 18:14:34
品牌 Logo 应用领域
美国国家半导体 - NSC /
页数 文件大小 规格书
12页 207K
描述
Octal Transceiver/Register with TRI-STATE Outputs

54F646BSCQB 技术参数

生命周期:Active包装说明:,
Reach Compliance Code:compliant风险等级:5.77
Base Number Matches:1

54F646BSCQB 数据手册

 浏览型号54F646BSCQB的Datasheet PDF文件第4页浏览型号54F646BSCQB的Datasheet PDF文件第5页浏览型号54F646BSCQB的Datasheet PDF文件第6页浏览型号54F646BSCQB的Datasheet PDF文件第8页浏览型号54F646BSCQB的Datasheet PDF文件第9页浏览型号54F646BSCQB的Datasheet PDF文件第10页 
’F646/’F648  
AC Electrical Characteristics  
74F  
54F  
74F  
e a  
T
25 C  
§
5.0V  
A
e
50 pF  
e
T
, V  
CC  
e
Mil  
T
, V  
Com  
e
50 pF  
A
A CC  
e a  
Symbol  
Parameter  
V
Units  
CC  
C
C
L
L
e
C
Min  
90  
50 pF  
L
Max  
Min  
Max  
Min  
Max  
f
Maximum Clock Frequency  
75  
90  
MHz  
ns  
max  
t
t
Propagation Delay  
Clock to Bus  
2.0  
2.0  
7.0  
8.0  
2.0  
2.0  
8.5  
9.5  
2.0  
2.0  
8.0  
9.0  
PLH  
PHL  
t
t
Propagation Delay  
Bus to Bus (’F646)  
1.0  
1.0  
7.0  
6.5  
1.0  
1.0  
8.0  
8.0  
1.0  
1.0  
7.5  
7.0  
PLH  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
PHL  
t
t
Propagation Delay  
Bus to Bus (’F648)  
2.0  
1.0  
8.5  
7.5  
1.0  
1.0  
10.0  
9.0  
2.0  
1.0  
9.0  
8.0  
PLH  
PHL  
t
t
Propagation Delay  
2.0  
2.0  
8.5  
8.0  
2.0  
2.0  
11.0  
10.0  
2.0  
2.0  
9.5  
9.0  
PLH  
SBA or SAB to A or B  
PHL  
t
t
Enable Time  
OE to A or B  
2.0  
2.0  
8.5  
2.0  
2.0  
10.0  
13.5  
2.0  
2.0  
9.0  
PZH  
12.0  
12.5  
PZL  
t
t
Disable Time  
OE to A or B  
1.0  
2.0  
7.5  
9.0  
1.0  
2.0  
9.0  
1.0  
2.0  
8.5  
9.5  
PHZ  
11.0  
PLZ  
t
t
Enable Time  
DIR to A or B  
2.0  
2.0  
14.0  
13.0  
2.0  
2.0  
16.0  
15.0  
2.0  
2.0  
15.0  
14.0  
PZH  
PZL  
t
t
Disable Time  
DIR to A or B  
1.0  
2.0  
9.0  
1.0  
2.0  
10.0  
12.0  
1.0  
2.0  
9.5  
PHZ  
11.0  
11.5  
PLZ  
’F646/’F648  
AC Operating Requirements  
74F  
54F  
74F  
e a  
e a  
T
25 C  
§
5.0V  
A
e
e
Symbol  
Parameter  
T
, V  
CC  
Mil  
T
, V  
A CC  
Com  
Max  
Units  
A
V
CC  
Min  
Max  
Min  
Max  
Min  
t (H)  
s
Setup Time, HIGH or LOW  
Bus to Clock  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
ns  
ns  
ns  
t (L)  
s
t (H)  
h
Hold Time, HIGH or LOW  
Bus to Clock  
2.0  
2.0  
2.5  
2.5  
2.0  
2.0  
t (L)  
h
t
t
(H)  
(L)  
Clock Pulse Width  
HIGH or LOW  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
w
w
7

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