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54F646 数据表(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 54F646
功能描述  Octal Transceiver/Register with TRI-STATE Outputs
Download  12 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

54F646 数据表(HTML) 8 Page - National Semiconductor (TI)

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’F646B
AC Electrical Characteristics
74F
54F
74F
TA ea25 C
TA VCC e Mil
TA VCC e Com
Symbol
Parameter
VCC ea50V
CL e 50 pF
CL e 50 pF
Units
CL e 50 pF
Min
Max
Min
Max
Min
Max
fmax
Maximum Clock Frequency
165
150
MHz
tPLH
Propagation Delay
25
70
25
80
ns
tPHL
Clock to Bus
30
75
30
80
tPLH
Propagation Delay
20
60
20
70
ns
tPHL
Bus to Bus
20
60
20
70
tPLH
Propagation Delay
25
75
25
85
ns
tPHL
SBA or SAB to A or B
25
75
25
85
tPZH
Enable Time
25
65
25
80
ns
tPZL
OE to A or B
25
90
25
100
tPHZ
Disable Time
15
65
15
75
ns
tPLZ
OE to A or B
20
70
20
85
tPZH
Enable Time
20
70
20
85
ns
tPZL
DIR to A or B
30
95
30
100
tPHZ
Disable Time
15
75
15
85
ns
tPLZ
DIR to A or B
25
85
25
95
’F646B
AC Operating Requirements
74F
54F
74F
Symbol
Parameter
TA ea25 C
TA VCC e Mil
TA VCC e Com
Units
VCC ea50V
Min
Max
Min
Max
Min
Max
ts(H)
Setup Time HIGH or LOW
50
40
ns
ts(L)
Bus to Clock
50
40
th(H)
Hold Time HIGH or LOW
15
15
ns
th(L)
Bus to Clock
15
15
tw(H)
Clock Pulse Width
50
50
ns
tw(L)
HIGH or LOW
50
50
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows
74F
646646B648
S
C
X
Temperature Range Family
Special Variations
74F e Commercial
QB e Military grade device with
54F e Military
environmental and burn-in
processing
Device Type
X e Devices shipped in 13 reel
Package Code
Temperature Range
SP e Slim Plastic DIP
C e Commercial
SD e Slim Ceramic DIP
(0 Cto a70 C)
S e Small Outline (SOIC)
M e Military
MSA e Shrink Small Outline SOIC EIAJ Type II (M646 only)
(b55 Cto a125 C)
L e Leadless Chip Carrier
F e Flatpak
8


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