SN74F253DRG4 [TI]
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS;
| 型号： | SN74F253DRG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS 输出元件 |
| 文件： | 总7页 (文件大小：100K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54F253, SN74F253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993
SN54F253 . . . J PACKAGE
SN74F253 . . . D OR N PACKAGE
(TOP VIEW)
• 3-State Versions of SN54F153 and
SN74F153
• Permits Multiplexing From N Lines to
One Line
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1G
B
V
CC
2G
• Performs Parallel-to-Serial Conversion
1C3
1C2
1C1
1C0
1Y
A
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
2C3
2C2
2C1
2C0
2Y
description
GND
These data selectors/multiplexers contain
inverters and drivers to supply full binary decoding
data selection to the AND-OR gates. Separate
output-control inputs are provided for each of the
two 4-line sections.
SN54F253 . . . FK PACKAGE
(TOP VIEW)
The 3-state outputs can interface with and drive
data lines of bus-organized systems. With all but
one of the common outputs disabled (at a
high-impedance state), the low impedance of the
single enabled output will drive the bus line to a
high or low logic level. Each output has its own
strobe (G) inputs. The output is disabled when its
strobe is high.
3
2
1
20 19
18
A
1C3
1C2
NC
4
5
6
7
8
2C3
NC
2C2
2C1
17
16
15
14
1C1
1C0
9 10 11 12 13
The SN54F253 is characterized for operation over
the full military temperature range of –55°C to
125°C. The SN74F253 is characterized for
operation from 0°C to 70°C.
NC – No internal connection
FUNCTION TABLE
INPUTS
STROBE
OUTPUT
Y
SELECT
DATA
C1
G
B
A
X
L
C0
C2
X
X
X
X
X
L
C3
X
X
X
X
X
X
X
L
X
L
X
L
X
X
X
L
H
L
L
L
L
L
L
L
L
Z
L
L
L
H
X
X
X
X
X
X
H
L
L
H
H
L
L
H
X
X
X
X
H
L
H
H
H
H
L
H
X
X
H
L
H
H
H
H
Select inputs A and B are common to both sections.
Copyright 1993, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
2–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F253, SN74F253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993
†
logic symbol
14
A
B
0
1
0
3
2
G
1
6
5
4
3
MUX
1G
1C0
1C1
1C2
1C3
EN
0
7
9
1
1Y
2Y
2
3
15
10
11
12
13
2G
2C0
2C1
2C2
2C3
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F253, SN74F253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993
logic diagram (positive logic)
1
1G
6
1C0
5
1C1
7
1Y
Data 1
4
1C2
3
1C3
2
B
Select
14
A
10
2C0
11
2C1
Data 2
9
2Y
12
2C2
13
2C3
15
2G
Pin numbers shown are for the D, J, and N packages.
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F253, SN74F253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
CC
Input voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA to 5 mA
Voltage range applied to any output in the disabled or power-off state . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
CC
Current into any output in the low state: SN54F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA
SN74F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA
Operating free-air temperature range: SN54F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
SN74F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.
recommended operating conditions
SN54F253
SN74F253
UNIT
MIN NOM
MAX
MIN NOM
MAX
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
IH
IL
High-level input voltage
Low-level input voltage
Input clamp current
0.8
–18
– 3
0.8
–18
– 3
24
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
Operating free-air temperature
OH
OL
20
T
A
–55
125
0
70
2–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F253, SN74F253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54F253
SN74F253
PARAMETER
TEST CONDITIONS
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
V
= 4.5 V,
= 4.5 V
= 4.75 V,
= 4.5 V
I = –18 mA
–1.2
–1.2
V
IK
CC
CC
CC
CC
I
I
I
I
I
I
= – 1 mA
= – 3 mA
= – 1 mA to –3 mA
= 20 mA
2.5
2.4
3.4
3.3
2.5
2.4
2.7
3.4
3.3
OH
OH
OH
OL
OL
V
OH
V
0.3
0.5
V
OL
V
= 24 mA
0.35
0.5
50
I
I
I
I
I
I
I
I
I
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
V
V
= 2.7 V
50
–50
0.1
µA
µA
OZH
OZL
I
O
= 0.5 V
–50
0.1
O
V = 7 V
I
mA
µA
V = 2.7 V
I
20
20
IH
V = 0.5 V
I
– 0.6
–150
16
– 0.6
–150
16
mA
mA
IL
‡
V
O
= 0
–60
–60
OS
Condition A
Condition B
Condition C
11.5
16
11.5
16
CCH
CCL
CCZ
V
CC
= 5.5 V,
23
23
mA
See Note 2
16
23
16
23
†
‡
All typical values are at V
= 5 V, T = 25°C.
A
CC
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
is measured with the outputs open under the following conditions:
NOTE 2:
I
CC
A. Inputs A, B, 1C3, and 2C3 at 4.5 V, other inputs grounded
B. All inputs grounded
C. Inputs 1G and 2G at 4.5 V, other inputs grounded
switching characteristics (see Note 3)
V
C
= 5 V,
= 50 pF,
V
= 4.5 V to 5.5 V,
CC
L
CC
C = 50 pF,
L
R1 = 500 Ω,
R1 = 500Ω,
FROM
(INPUT)
TO
(OUTPUT)
R2 = 500 Ω,
R2 = 500 Ω,
§
T = MIN to MAX
A
PARAMETER
UNIT
T
= 25°C
′F253
TYP
8.1
A
SN54F253
SN74F253
MIN
MAX
MIN
2.7
1.7
1.7
1.7
1.7
1.7
1.2
1.2
MAX
MIN
3.7
2.2
2.2
1.7
2.2
2.2
1.2
1.2
MAX
t
t
t
t
3.7
2.2
2.2
1.7
2.2
2.2
1.2
1.2
11.5
9
15
11
9
13
10
8
PLH
PHL
PLH
PHL
PZH
A or B
Any C
Any Y
Any Y
Any Y
Any Y
ns
ns
ns
ns
6.1
5.1
7
4.1
6
8
7
t
5.6
8
10
10
6.5
8
9
G
G
t
5.6
8
9
PZL
t
3.3
5
6
PHZ
t
4
6
7
PLZ
§
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 3: Load circuit and waveforms are shown in Section 1.
2–5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2–6
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1998, Texas Instruments Incorporated
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