74ACT253FC [TI]
ACT SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDFP16, CERAMIC, FP-16;型号: | 74ACT253FC |
厂家: | TEXAS INSTRUMENTS |
描述: | ACT SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDFP16, CERAMIC, FP-16 CD 输出元件 |
文件: | 总10页 (文件大小:170K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
July 1995
54AC/74AC253 54ACT/74ACT253
#
Dual 4-Input Multiplexer with TRI-STATE Outputs
É
General Description
Features
Y
CC
I
and I
reduced by 50%
OZ
The ’AC/’ACT253 is a dual 4-input multiplexer with TRI-
STATE outputs. It can select two bits of data from four
sources using common select inputs. The outputs may be
individually switched to a high impedance state with a HIGH
on the respective Output Enable (OE) inputs, allowing the
outputs to interface directly with bus oriented systems.
Y
Y
Y
Y
Y
Multifunction capability
Noninverting TRI-STATE outputs
Outputs source/sink 24 mA
’ACT253 has TTL-compatible inputs
Standard Military Drawing (SMD)
Ð ’AC253: 5962-87693
Ð ’ACT253: 5962-87761
Logic Symbols
Connection Diagrams
Pin Assignment
for DIP, Flatpak and SOIC
IEEE/IEC
TL/F/9946–1
TL/F/9946–3
Pin Assignment
for LCC
TL/F/9946–2
Pin Names
Description
I
–I
0a 3a
Side A Data Inputs
I –I
0b 3b
Side B Data Inputs
S , S
0
Common Select Inputs
Side A Output Enable Input
Side B Output Enable Input
TRI-STATE Outputs
1
OE
OE
a
b
Z , Z
a
b
TL/F/9946–4
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.
FACTTM is a trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
TL/F/9946
RRD-B30M115/Printed in U. S. A.
Functional Description
The ’AC/’ACT253 contains two identical 4-input multiplex-
e
e
a
a
a
Z
Z
OE (I
#
S
S
I
I
S
S
0
#
#
#
#
#
a
a
0a
1
0
1a
1
ers with TRI-STATE outputs. They select two bits from four
sources selected by common Select inputs (S , S ). The 4-
a
I
S
S
I
S
1
S )
0
#
#
#
#
2a
1
0
3a
S
0
1
input multiplexers have individual Output Enable (OE , OE )
a
OE (I
#
S
S
S
0
#
S
#
I
#
1b
b
b
0b
1
0
1
a
b
a
I
S
1
S
1
S )
0
#
#
#
#
2b
0
3b
inputs which, when HIGH, force the outputs to a high imped-
ance (High Z) state. This device is the logic implementation
of a 2-pole, 4-position switch, where the position of the
switch is determined by the logic levels supplied to the two
select inputs. The logic equations for the outputs are shown:
If the outputs of TRI-STATE devices are tied together, all
but one device must be in the high impedance state to avoid
high currents that would exceed the maximum ratings. De-
signers should ensure that Output Enable signals to TRI-
STATE devices whose outputs are tied together are de-
signed so that there is no overlap.
Truth Table
Select
Inputs
Output
Enable
Data Inputs
Outputs
S
0
S
I
0
I
I
I
3
OE
Z
1
1
2
X
X
X
L
X
X
X
L
X
X
X
X
X
L
X
X
X
X
X
X
X
L
H
L
L
L
L
L
L
L
L
Z
L
L
L
L
L
H
X
X
X
X
X
X
H
L
H
H
L
L
L
H
X
X
X
X
H
L
H
H
H
H
L
H
X
X
H
L
H
H
H
H
Address Inputs S and S are common to both sections.
1
0
e
e
e
e
H
L
HIGH Voltage Level
LOW Voltage Level
Immaterial
X
Z
High Impedance
Logic Diagram
TL/F/9946–5
Please note that this diagram is provided only for the understanding of logic operations 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
Supply Voltage (V
’AC
’ACT
)
CC
2.0V to 6.0V
4.5V to 5.5V
b
a
0.5V to 7.0V
Supply Voltage (V
)
CC
DC Input Diode Current (I
)
IK
Input Voltage (V )
I
0V to V
0V to V
CC
e b
b
a
V
I
V
I
0.5V
a
20 mA
20 mA
Output Voltage (V
)
O
CC
e
V
CC
0.5V
Operating Temperature (T )
A
74AC/ACT
54AC/ACT
b
b
a
0.5V
DC Input Voltage (V )
I
0.5V to V
0.5V to V
CC
b
b
a
40 C to 85 C
§
55 C to 125 C
§
§
DC Output Diode Current (I
)
a
OK
§
e b
b
a
V
V
0.5V
a
20 mA
20 mA
O
O
Minimum Input Edge Rate (DV/Dt)
’AC Devices
e
V
CC
0.5V
a
DC Output Voltage (V
DC Output Source
)
O
0.5V
50 mA
50 mA
CC
V
V
from 30% to 70% of V
@
IN
CC
3.3V, 4.5V, 5.5V
125 mV/ns
125 mV/ns
CC
g
g
or Sink Current (I
)
O
Minimum Input Edge Rate (DV/Dt)
’ACT Devices
DC V
or Ground Current
CC
per Output Pin (I or I
CC
)
V
V
from 0.8V to 2.0V
@
GND
)
IN
4.5V, 5.5V
b
a
65 C to 150 C
CC
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
0.1V
V
V
V
Minimum High Level
Input Voltage
3.0
4.5
5.5
1.5
2.1
2.1
2.1
V
IH
OUT
b
2.25
2.75
3.15
3.85
3.15
3.85
3.15
3.85
V
V
V
or V
CC
0.1V
e
Maximum Low Level
Input Voltage
3.0
4.5
5.5
1.5
0.9
0.9
0.9
V
OUT
0.1V
IL
b
2.25
2.75
1.35
1.65
1.35
1.65
1.35
1.65
or V
CC
0.1V
e b
OUT
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
OH
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
0.50
0.50
0.50
0.44
0.44
0.44
12 mA
V
I
24 mA
24 mA
OL
e
I
Maximum Input
Leakage Current
V
I
V , GND
CC
IN
g
g
g
1.0
5.5
0.1
1.0
mA
*All outputs loaded; thresholds on input associated with output under test.
3
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
I
Maximum TRI-STATE
Current
V (OE)
I
V
, V
IL IH
É
OZ
e
g
g
g
2.5
5.5
0.25
5.0
mA
V
V
V
, GND
CC
I
e
V
CC
, GND
O
e
e
²
I
I
I
Minimum Dynamic
5.5
5.5
50
75
mA
mA
V
V
V
1.65V Max
3.85V Min
OLD
OHD
CC
OLD
OHD
Output Current
b
b
75
50
e
Maximum Quiescent
Supply Current
V
CC
IN
5.5
4.0
80.0
40.0
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
DC Characteristics for ’ACT Family Devices
74ACT
54ACT
74ACT
e
e
T
A
V
T
CC
A
e a
Symbol
Parameter
T
A
25 C
§
Units
Conditions
b
a
55 C to 125 C
b a
40 C to 85 C
(V)
§
§
§
§
Typ
Guaranteed Limits
e
0.1V
V
V
V
Minimum High Level
Input Voltage
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
2.0
2.0
V
IH
OUT
V
V
V
b
or V
CC
0.1V
e
Maximum Low Level
Input Voltage
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
0.8
0.8
V
OUT
0.1V
IL
b
or V
CC
0.1V
e b
OUT
Minimum High Level
Output Voltage
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
4.4
5.4
I
50 mA
OH
e
*V
IN
V
IL
or V
IH
b
b
4.5
5.5
3.86
4.86
3.70
4.70
3.76
4.76
24 mA
24 mA
V
V
I
OH
e
e
V
OL
Maximum Low Level
Output Voltage
4.5 0.001
5.5 0.001
0.1
0.1
0.1
0.1
0.1
0.1
I
50 mA
OUT
*V
IN
V
or V
IL IH
4.5
5.5
0.36
0.36
0.50
0.50
0.44
0.44
24 mA
V
I
OL
24 mA
I
I
I
Maximum Input
Leakage Current
IN
e
e
g
g
g
g
g
5.5
5.5
0.1
1.0
5.0
1.0
2.5
mA
mA
mA
V
V
, GND
CC
I
Maximum TRI-STATE
Current
V
V
V , V
IL IH
É
OZ
I
g
0.25
e
V
, GND
CC
O
e
b
2.1V
Maximum
V
I
V
CC
CCT
5.5
0.6
1.6
50
1.5
75
I
/Input
CC
e
²
I
I
I
Minimum Dynamic
5.5
5.5
mA
mA
V
V
V
1.65V Max
e
3.85V Min
OLD
OHD
CC
OLD
Output Current
b
b
50
75
OHD
e
Maximum Quiescent
Supply Current
V
CC
IN
5.5
4.0
80.0
40.0
mA
or GND
*All outputs loaded; thresholds on input associated with output under test.
²
Maximum test duration 2.0 ms, one output loaded at a time.
@ @
for 54ACT 25 C is identical to 74ACT 25 C.
§ §
Note: I
CC
4
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
t
t
t
t
t
t
Propagation Delay
3.3
5.0
2.0
2.0
8.5
6.5
15.5
11.0
1.0
1.0
18.0
12.5
2.0
1.5
17.5
12.5
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
ns
ns
ns
ns
ns
ns
ns
ns
S
n
to Z
n
Propagation Delay
to Z
3.3
5.0
2.5
2.0
9.5
7.0
16.0
11.5
1.0
1.0
18.5
13.5
2.0
1.5
18.0
13.0
S
n
n
Propagation Delay
to Z
3.3
5.0
1.5
1.5
7.0
5.5
14.5
10.0
1.0
1.0
17.0
11.5
1.5
1.5
17.0
11.5
I
n
n
Propagation Delay
to Z
3.3
5.0
2.0
1.5
7.5
5.5
13.0
9.5
1.0
1.0
15.0
11.5
1.5
1.5
15.0
11.0
I
n
n
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
3.3
5.0
1.5
1.5
4.5
3.5
8.0
6.0
1.0
1.0
9.0
7.0
1.0
1.0
8.5
6.5
3.3
5.0
1.5
1.5
5.0
3.5
8.0
6.0
1.0
1.0
9.5
8.0
1.0
1.0
9.0
7.0
3.3
5.0
2.0
2.0
5.5
5.0
9.5
8.0
1.0
1.0
10.5
9.0
1.5
1.5
10.0
8.5
3.3
5.0
1.5
1.5
5.0
4.0
8.0
7.0
1.0
1.0
9.5
8.0
1.0
1.0
9.0
7.5
g
*Voltage Range 3.3 is 3.3V 0.3V
g
Voltage Range 5.0 is 5.0V 0.5V
AC Electrical Characteristics
74ACT
54ACT
e b
74ACT
e b
40 C
T
55 C
T
§
to 125 C
§
A
A
e a
A
V
*
T
25 C
§
50 pF
CC
a
e
a
e
Symbol
Parameter
to 85 C
Units
§
50 pF
§
50 pF
e
(V)
C
L
C
C
L
L
Min
Typ
Max
Min
Max
Min
Max
t
t
t
t
Propagation Delay
PLH
PHL
PLH
PHL
5.0
5.0
5.0
5.0
2.0
7.0
7.5
5.5
6.5
11.5
1.0
14.5
16.0
12.0
13.5
2.0
13.0
14.5
11.0
12.5
ns
ns
ns
ns
S
n
to Z
n
Propagation Delay
to Z
3.0
2.5
3.5
13.0
10.0
11.0
1.0
1.0
1.0
2.5
2.0
3.0
S
n
n
Propagation Delay
to Z
I
n
n
Propagation Delay
to Z
I
n
n
t
t
t
t
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
5.0
5.0
5.0
5.0
2.0
2.0
3.0
2.5
4.5
5.0
6.0
4.5
7.5
8.0
9.5
7.5
1.0
1.0
1.0
1.0
9.5
9.5
1.5
1.5
2.5
2.0
8.5
9.0
ns
ns
ns
ns
PZH
PZL
PHZ
PLZ
11.0
9.0
10.0
8.5
g
*Voltage Range 5.0 is 5.0V 0.5V
5
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
50.0
pF
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:
74ACT 253
P
C
QR
Temperature Range Family
e
Special Variations
e
e
74AC
54AC
Commercial
Military
X
QR
Devices shipped in 13 reels
×
Commercial grade device with
burn-in
e
e
e
74ACT
54ACT
Commercial TTL-Compatible
Military TTL-Compatible
e
QB
Military grade device with
environmental and burn-in
processing shipped in tubes
Device Type
Package Code
Temperature Range
e
e
e
e
e
P
D
F
L
Plastic DIP
Ceramic DIP
Flatpak
Leadless Ceramic Chip Carrier (LCC)
Small Outline (SOIC)
e
e
b a
C
M
Commercial ( 40 C to 85 C)
§
§
b a
Military ( 55 C to 125 C)
§
§
S
6
7
Physical Dimensions inches (millimeters)
20 Terminal Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
16 Lead Ceramic Dual-In-Line Package (D)
NS Package Number J16A
8
Physical Dimensions inches (millimeters) (Continued)
16 Lead Small Outline Integrated Circuit (S)
NS Package Number M16A
16 Lead Plastic Dual-In-Line Package (P)
NS Package Number N16E
9
Physical Dimensions inches (millimeters)
16 Lead Ceramic Flatpak (F)
NS Package Number W16A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and whose
failure to perform, when properly used in accordance
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
National Semiconductor
Corporation
National Semiconductor
Europe
National Semiconductor
Hong Kong Ltd.
National Semiconductor
Japan Ltd.
a
1111 West Bardin Road
Arlington, TX 76017
Tel: 1(800) 272-9959
Fax: 1(800) 737-7018
Fax:
(
49) 0-180-530 85 86
@
13th Floor, Straight Block,
Ocean Centre, 5 Canton Rd.
Tsimshatsui, Kowloon
Hong Kong
Tel: (852) 2737-1600
Fax: (852) 2736-9960
Tel: 81-043-299-2309
Fax: 81-043-299-2408
Email: cnjwge tevm2.nsc.com
a
a
a
a
Deutsch Tel:
English Tel:
Fran3ais Tel:
Italiano Tel:
(
(
(
(
49) 0-180-530 85 85
49) 0-180-532 78 32
49) 0-180-532 93 58
49) 0-180-534 16 80
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
相关型号:
74ACT253FCQR
Multiplexer, ACT Series, 2-Func, 4 Line Input, 1 Line Output, True Output, CMOS, CDFP16, CERAMIC, FP-16
FAIRCHILD
74ACT253FCTR
Multiplexer, ACT Series, 2-Func, 4 Line Input, 1 Line Output, True Output, CMOS, CDFP16, CERAMIC, FP-16
FAIRCHILD
74ACT253FCXR
Multiplexer, ACT Series, 2-Func, 4 Line Input, 1 Line Output, True Output, CMOS, CDFP16, CERAMIC, FP-16
FAIRCHILD
74ACT253LC
IC ACT SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20, Multiplexer/Demultiplexer
TI
74ACT253LCX
IC ACT SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20, Multiplexer/Demultiplexer
TI
74ACT253PCQR
Multiplexer, ACT Series, 2-Func, 4 Line Input, 1 Line Output, True Output, CMOS, PDIP16, PLASTIC, DIP-16
ROCHESTER
©2020 ICPDF网 联系我们和版权申明