54F378 [TI]
54F378 74F378 Parallel D Register with Enable; 54F378 74F378并行D寄存器使能
| 型号： | 54F378 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 54F378 74F378 Parallel D Register with Enable |
| 文件： | 总10页 (文件大小：416K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
54F378,74F378
54F378 74F378 Parallel D Register with Enable
Literature Number: SNOS192A
January 1995
54F/74F378
Parallel D Register with Enable
General Description
The ’F378 is a 6-bit register with a buffered common En-
able. This device is similar to the ’F174, but with common
Enable rather than common Master Reset.
Features
Y
Y
Y
Y
Y
6-bit high-speed parallel register
Positive edge-triggered D-type inputs
Fully buffered common clock and enable inputs
Input clamp diodes limit high-speed termination effects
Full TTL and CMOS compatible
Package
Commercial
74F378PC
Military
Package Decription
Number
N16E
J16A
16-Lead (0.300 Wide) Molded l-In-Line
×
54F378DM (QB)
16-Lead Ceramic Dual-In-Line
74F378SC (Note 1)
74F378SJ (Note 1)
M16A
M16D
W16A
E20A
16-Lead (0.150 Widmall OuEDEC
×
16-Lead (0.300 WSmaOutline, EIAJ
×
54F378FM (QB)
54F378LM (QB)
16-Lead pack
20-Lead Cerac LeadChip rrier, Type C
e
Note 1: Devices also available in 13 reel. Use suffix
×
SCX and SJX.
Logic Symbols
on Diagrams
Pin Assignm
DIP, SOIC and
Pin Assignment
for LCC
TL/F/95
IEE
TL/F/9526–2
TL/F/9526–3
TL/F/9526–4
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
TL/F/9526
RRD-B30M75/Printed in U. S. A.
Unit Loading/Fan Out
54F/74F
Pin Names
Description
U.L.
Input I /I
IH IL
HIGH/LOW Output I /I
OH OL
b
20 mA/ 0.6 mA
b
20 mA/ 0.6 mA
b
20 mA/ 0.6 mA
E
Enable Input (Active LOW)
Data Inputs
1.0/1.0
1.0/1.0
1.0/1.0
50/33.3
D –D
0
5
CP
Clock Pulse Input (Active Rising Edge)
Outputs
b
Q –Q
0
1 mA/20 mA
5
Functional Description
Truth Table
The ’F378 consists of six edge-triggered D-type flip-flops
with individual D inputs and Q inputs. The Clock (CP) and
Enable (E) inputs are common to all flip-flops.
Inputs
Output
E
CP
D
Q
n
n
When the E input is LOW, new data is entered into the
register on the LOW-to-HIGH transition of the CP input.
When the E input is HIGH the register will retain the present
data independent of the CP input.
H
L
L
L
L
L
X
No Change
H
L
H
e
e
e
H
L
HIGH Voltage Level
LOW Voltage Level
Immaterial
X
e
L
LOW-to-HIGH Clock Transition
Logic Diagram
TL/F/9526–5
Please note that this diagram is provided only for the urstanding of logic operats and should not be used to estimate propagation delays.
2
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
Commercial
b
a
55 C to 125 C
§
0 C to 70 C
§
§
b
b
a
65 C to 150 C
Storage Temperature
§
§
§
§
§
a
§
a
55 C to 125 C
Ambient Temperature under Bias
§
Supply Voltage
Military
Commercial
b
b
a
a a
4.5V to 5.5V
a a
4.5V to 5.5V
Junction Temperature under Bias
Plastic
55 C to 175 C
§
§
a
55 C to 150 C
V
Pin Potential to
CC
Ground Pin
b
a
0.5V to 7.0V
b
a
0.5V to 7.0V
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
b
a
30 mA to 5.0 mA
e
in HIGH State (with V
Standard Output
0V)
CC
b
0.5V to 5.5V
0.5V to V
CC
b
a
TRI-STATE Output
É
Current Applied to Output
in LOW State (Max)
twice the rated I (mA)
OL
Note 1: Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired. Functional operation under
these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
54F/74F
Symbol
Parameter
C
Conditions
Min
Typ
Max
V
V
V
V
Input HIGH Voltage
2.0
V
Recognized as a HIGH Signal
Recognized as a LOW Signal
IH
Input LOW Voltage
0.8
IL
e b
18 mA
Input Clamp Diode Voltage
1.2
Min
Min
I
IN
CD
OH
e b
e b
e b
Output HIGH
Voltage
54F 10% V
2.5
2.5
2.7
I
I
I
1 mA
1 mA
1 mA
CC
OH
OH
OH
74F 10% V
74F 5% V
V
CC
CC
e
e
V
Output LOW
Voltage
54F 10% V
74F 10% V
I
I
20 mA
20 mA
OL
CC
OL
OL
V
Min
Max
Max
Max
0.0
0.5
C
e
I
I
I
Input HIGH
Current
54F
74F
20.0
5.0
V
V
V
2.7V
IH
IN
mA
mA
mA
V
e
Input HIGH Curre
Breakdown Test
54
7
100
7.0
7.0V
BVI
IN
e
V
CC
Output HIGH
5
74F
250
50
CEX
OUT
Leak
e
All Other Pins Grounded
V
ID
In
T
I
1.9 mA
ID
F
F
4.75
e
IOD
I
O
Cir
V
150 mV
OD
3.75
mA
0.0
All Other Pins Grounded
b
e
0.5V
I
I
I
Input L
0.6
mA
mA
mA
Max
Max
Max
V
V
V
IL
IN
b
b
e
0V
OUT
Output Short-Circuit Current
Power Supply Current
60
150
OS
CCL
e
30
45
LOW
O
3
AC Electrical Characteristics
74F
54F
74F
e a
T
25 C
§
5.0V
A
e
50 pF
e
50 pF
T
, V
CC
e
Mil
T
, V
A CC
Com
A
e a
Symbol
Parameter
V
Units
CC
e
C
C
L
L
e
C
50 pF
L
Min
Typ
Max
Min
Max
Min
Max
f
Maximum Input Frequency
Propagation Delay
80
100
70
80
MHz
ns
max
t
t
3.0
3.5
5.5
6.0
7.5
8.5
3.0
3.5
10.0
10.5
3.0
3.5
8.5
9.5
PLH
CP to Q
PHL
n
AC Operating Requirements
74F
54F
74F
e a
e a
T
25 C
§
5.0V
A
e
e
Symbol
Parameter
T
, V
CC
Mil
Max
T
, V
A CC
Com
Units
A
V
CC
Min
Max
Min
Min
t (H)
s
Setup Time, HIGH or LOW
4.0
4.0
5.0
5.0
.0
4
t (L)
s
D to CP
n
n
t (H)
h
Hold Time, HIGH or LOW
D to CP
n
0
0
2.0
2.0
0
0
t (L)
h
t (H)
s
Setup Time, HIGH or LOW
E to CP
6.0
4.5
t (L)
s
10.0
13.0
0
ns
ns
t (H)
h
Hold Time, HIGH or LOW
E to CP
0
0
0
0
0
0
t (L)
h
t
t
(H)
(L)
CP Pulse Width
HIGH or LOW
4.0
6.0
5.0
7.
4.0
6.0
w
w
Ordering Information
The device number is used to form part of a simplified purchasing cockage type and temperature range are
defined as follows:
74F 78
S
X
Temperature Range Family
Special Variations
e
e
e
74F
54F
Commercial
Military
QB
Military grade device with
environmental and burn-in
processing
Device Type
e
X
Devices shipped in 13 reel
×
Package Code
Temperature Range
e
e
e
e
e
P
D
F
L
Plastic DI
Ceramic
Flatpa
Leadle
Small O
Small O
e
e
a
C
M
Commercial (0 C to 70 C)
§
§
b a
Military ( 55 C to 125 C)
§
§
S
e
SJ
4
Physical Dimensions inches (millimeters)
20-Lead Ceramic Leadlep CarriL)
NS Package A
16-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J16A
5
Physical Dimensions inches (millimeters) (Continued)
16-Lead (0.150 Wide) Molded Small Outline ackage, J
×
NS Package Number M16A
16-Lead (0.300 Wide) Molded Small Outline Package, EIAJ (SJ)
×
NS Package Number M16D
6
Physical Dimensions inches (millimeters) (Continued)
16-Lead (0.300 Wide) Molded Dual-In-Line Package (P)
×
NS Package Number N16E
7
Physical Dimensions inches (millimeters) (Continued)
16-Lead Ceramic FlatpaF)
NS Package Number W16
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