74AC14LCQR [TI]
AC SERIES, HEX 1-INPUT INVERT GATE, CQCC20, CERAMIC, LCC-20;
| 型号： | 74AC14LCQR |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | AC SERIES, HEX 1-INPUT INVERT GATE, CQCC20, CERAMIC, LCC-20 输入元件 |
| 文件： | 总6页 (文件大小：150K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
June 1993
54AC/74AC14
Hex Inverter with Schmitt Trigger Input
General Description
The ’AC14 contains six inverter gates each with a Schmitt
trigger input. The ’AC14 contains six logic inverters which
accept standard CMOS input signals and provide standard
CMOS output levels. They are capable of transforming
slowly changing input signals into sharply defined, jitter-free
output signals. In addition, they have a greater noise margin
than conventional inverters.
The ’AC14 has hysteresis between the positive-going and
negative-going input thresholds (typically 1.0V) which is de-
termined internally by transistor ratios and is essentially in-
sensitive to temperature and supply voltage variations.
Features
Y
CC
I
reduced by 50%
Y
Y
Outputs source/sink 24 mA
Standard Military Drawing (SMD)
Ð ’AC14: 5962-87624
Connection Diagrams
Logic Symbol
Pin Assignment
for DIP, Flatpak and SOIC
Pin Assignment
for LCC
IEEE/IEC
TL/F/9917–2
TL/F/9917–3
TL/F/9917–1
Function Table
Output
Pin Names
Description
Input
A
I
Inputs
n
O
O
n
Outputs
L
H
L
H
FACTTM is a trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
TL/F/9917
RRD-B30M75/Printed in U. S. A.
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
Supply Voltage (V
’AC
)
CC
2.0V to 6.0V
b
a
0.5V to 7.0V
Supply Voltage (V
)
CC
Input Voltage (V )
I
0V to V
0V to V
CC
DC Input Diode Current (I
)
IK
Output Voltage (V
)
O
CC
e b
b
a
V
I
V
I
0.5V
a
20 mA
20 mA
Operating Temperature (T )
A
e
V
CC
0.5V
b
b
a
40 C to 85 C
74AC
54AC
§
55 C to 125 C
§
§
b
b
a
0.5V
DC Input Voltage (V )
I
0.5V to V
0.5V to V
CC
a
§
DC Output Diode Current (I
)
OK
e b
b
a
V
V
0.5V
a
20 mA
20 mA
O
O
e
V
CC
0.5V
a
DC Output Voltage (V
DC Output Source
)
O
0.5V
50 mA
50 mA
CC
g
g
or Sink Current (I
)
O
DC V
or Ground Current
CC
per Output Pin (I or I
CC
)
GND
)
b
a
65 C to 150 C
Storage Temperature (T
§
§
STG
Junction Temperature (T )
J
CDIP
PDIP
175 C
§
140 C
§
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation of FACTTM circuits outside databook specifications.
DC Characteristics for ’AC Family Devices
74AC
54AC
74AC
e
e
T
A
V
T
CC
A
e a
Symbol
Parameter
T
25 C
§
Units
Conditions
A
b
a
55 C to 125 C
b a
40 C to 85 C
(V)
§
§
§
§
Typ
Guaranteed Limits
e b
V
OH
Minimum High Level
Output Voltage
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
2.9
4.4
5.4
I
50 mA
OUT
V
e
*V
IN
V
IL
or V
IH
b
b
b
3.0
4.5
5.5
2.56
3.86
4.86
2.4
3.7
4.7
2.46
3.76
4.76
12 mA
V
V
I
24 mA
24 mA
OH
e
e
V
OL
Maximum Low Level
Output Voltage
3.0
4.5
5.5
0.002
0.001
0.001
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
I
50 mA
OUT
*V
IN
V or V
IL IH
3.0
4.5
5.5
0.36
0.36
0.36
0.5
0.5
0.5
0.44
0.44
0.44
12 mA
V
mA
V
I
24 mA
24 mA
OL
e
I
Maximum Input
Leakage Current
V
T
V
CC
, GND
IN
I
g
g
g
5.5
0.1
1.0
1.0
e
V
Maximum Positive
Threshold
3.0
4.5
5.5
2.2
2.2
2.2
Worst Case
Worst Case
a
b
t
t
A
3.2
3.9
3.2
3.9
3.2
3.9
e
V
Minimum Negative
Threshold
3.0
4.5
5.5
0.5
0.9
1.1
0.5
0.9
1.1
0.5
0.9
1.1
T
A
V
*All outputs loaded; thresholds on input associated with output under test.
2
DC Characteristics for ’AC Family Devices (Continued)
74AC
54AC
74AC
e
e
T
A
V
T
CC
A
e a
Symbol
Parameter
T
25 C
§
Units
Conditions
A
b
a
55 C to 125 C
b a
40 C to 85 C
(V)
§
§
§
§
Typ
Guaranteed Limits
e
V
Maximum Hysteresis
3.0
4.5
5.5
1.2
1.4
1.6
1.2
1.4
1.6
1.2
1.4
1.6
T
T
Worst Case
Worst Case
h(max)
h(min)
A
V
V
e
V
Minimum Hysteresis
3.0
4.5
5.5
0.3
0.4
0.5
0.3
0.4
0.5
0.3
0.4
0.5
A
e
²
I
I
I
Minimum Dynamic
5.5
5.5
50
75
mA
mA
V
V
V
1.65V Max
OLD
OHD
CC
OLD
Output Current
b
b
e
3.85V Min
50
75
OHD
e
Maximum Quiescent
Supply Current
V
CC
IN
5.5
2.0
40.0
20.0
mA
or GND
²
Maximum test duration 2.0 ms, one output loaded at a time.
@
@
3.0V are guaranteed to be less than or equal to the respective limit 5.5V V
Note: I and I
IN
.
CC
CC
@ @
for 54AC 25 C is identical to 74AC 25 C.
§ §
I
CC
AC Electrical Characteristics
74AC
54AC
e b
74AC
e b
T
55 C
T
40 C
§
§
A
A
e a
A
V
*
T
25 C
§
50 pF
CC
a
a
Symbol
Parameter
to 125 C
to 85 C
Units
§
50 pF
§
50 pF
e
(V)
C
L
e
e
C
C
L
L
Min
Typ
Max
Min
Max
Min
Max
t
t
Propagation Delay
Propagation Delay
3.3
5.0
1.5
1.5
9.5
7.0
13.5
10.0
1.0
1.0
16.0
12.0
1.5
1.5
15.0
11.0
PLH
ns
ns
3.3
5.0
1.5
1.5
7.5
6.0
11.5
8.5
1.0
1.5
14.0
10.0
1.5
1.5
13.0
9.5
PHL
g
*Voltage Range 3.3 is 3.3V 0.3V
g
Voltage Range 5.0 is 5.0V 0.5V
Capacitance
Symbol
Parameter
Typ
Units
Conditions
e
e
C
C
Input Capacitance
4.5
pF
V
V
OPEN
5.0V
IN
CC
Power Dissipation
Capacitance
PD
CC
25.0
pF
3
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:
74AC 14
P
C
QR
Temperature Range Family
Special Variations
e
e
e
e
74AC
54AC
Commercial
Military
X
QR
Devices shipped in 13 reels
×
Commercial grade device with
burn-in
Device Type
e
QB
Military grade device with
environmental and burn-in
processing shipped in tubes
Package Code
e
e
e
e
e
P
D
F
L
Plastic DIP
Ceramic DIP
Flatpak
Leadless Ceramic Chip Carrier (LCC)
Small Outline (SOIC)
Temperature Range
e
e
b a
C
M
Commercial ( 40 C to 85 C)
§
§
b a
Military ( 55 C to 125 C)
§
§
S
Physical Dimensions inches (millimeters)
20 Terminal Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
4
Physical Dimensions inches (millimeters) (Continued)
14-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J14A
14-Lead Small Outline Integrated Circuit (S)
NS Package Number M14A
5
Physical Dimensions inches (millimeters) (Continued)
14-Lead Plastic Dual-In-Line Package (P)
NS Package Number N14A
14-Lead Ceramic Flatpak (F)
NS Package Number W14B
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