SN74F241DWR [TI]
Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70;
| 型号： | SN74F241DWR |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70 驱动器 输出元件 |
| 文件： | 总5页 (文件大小：74K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54F241, SN74F241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SDFS090 – MARCH 1987 – REVISED OCTOBER 1993
SN54F241 . . . J PACKAGE
SN74F241 . . . DW OR N PACKAGE
(TOP VIEW)
• 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Plastic and Ceramic DIPs
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
description
These octal buffers and line drivers are designed
specifically to improve both the performance and
density of 3-state memory address drivers, clock
drivers, and bus-oriented receivers and
transmitters. Taken together with the ′F240 and
′F244, these devices provide the choice of
selected combinations of inverting and
noninverting outputs, symmetrical OE (active-low
output-enable) inputs, and complementary OE
and OE inputs.
SN54F241 . . . FK PACKAGE
(TOP VIEW)
The SN54F241 is characterized for operation over
the full military temperature range of –55°C to
125°C. The SN74F241 is characterized for
operation from 0°C to 70°C.
3
2
1
20 19
18
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
4
5
6
7
8
17
16
15
14
9 10 11 12 13
FUNCTION TABLES
INPUTS
OUTPUT
1Y
1OE
1A
X
H
L
L
Z
H
L
H
L
INPUTS
OUTPUT
2Y
2OE
H
2A
H
H
L
H
L
L
X
Z
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
SN54F241, SN74F241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SDFS090 – MARCH 1987 – REVISED OCTOBER 1993
†
logic symbol
logic diagram (positive logic)
1
1
1OE
EN
1OE
18
2
4
6
8
18
16
14
12
2
1Y1
1Y2
1Y3
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
1A1
16
14
4
1A2
6
1A3
19
2OE
EN
12
8
1Y4
1A4
11
13
15
17
9
7
5
3
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
19
2OE
9
7
11
2A1
2Y1
2Y2
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
13
2A2
5
3
15
2A3
2Y3
2Y4
17
2A4
‡
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, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.2 V to 7 V
I
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: SN54F241 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74F241 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Operating free-air temperature range: SN54F241 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
SN74F241 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F241, SN74F241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SDFS090 – MARCH 1987 – REVISED OCTOBER 1993
recommended operating conditions
SN54F241
MIN NOM
SN74F241
UNIT
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
– 12
48
0.8
–18
– 15
64
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
Operating free-air temperature
OH
OL
T
A
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54F241
SN74F241
PARAMETER
TEST CONDITIONS
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
= 4.5 V,
= 4.5 V
I = –18 mA
–1.2
–1.2
V
IK
CC
I
I
I
I
I
I
I
= – 3 mA
= – 12 mA
= – 15 mA
= – 3 mA
= 48 mA
= 64 mA
= 2.7 V
2.4
2
3.3
3.2
2.4
3.3
3.1
OH
OH
OH
OH
OL
OL
CC
V
OH
2
V
V
= 4.75 V,
= 4.5 V
2.7
CC
0.38
0.55
V
OL
V
CC
0.42
0.55
50
I
I
I
I
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
V
50
–50
0.1
µA
µA
mA
µA
OZH
OZL
I
O
O
V
= 0.5 V
–50
0.1
V = 7 V
I
V = 2.7 V
I
20
20
IH
OE or OE
Any A
– 1
– 1
I
V
= 5.5 V,
= 5.5 V,
V = 0.5 V
mA
mA
IL
CC
CC
I
– 1.6
– 1.6
–225
60
‡
I
V
V
O
= 0
–100
–225 –100
OS
Outputs high
Outputs low
40
60
60
60
90
90
40
60
60
I
V
CC
= 5.5 V
90
mA
CC
Outputs disabled
90
†
‡
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.
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F241, SN74F241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SDFS090 – MARCH 1987 – REVISED OCTOBER 1993
switching characteristics (see Note 2)
V
C
R
= 5 V,
= 50 pF,
= 500 Ω,
= 25°C
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
CC
L
L
= 500Ω,
FROM
(INPUT)
TO
(OUTPUT)
†
PARAMETER
UNIT
T
A
T
A
= MIN to MAX
′F241
TYP
3.6
3.6
3.9
5
SN54F241
SN74F241
MIN
1.7
1.7
1.2
1.2
1.2
1.2
MAX
5.2
5.2
5.7
7
MIN
1.2
1.2
1.2
1.2
1.2
1.2
MAX
MIN
1.7
1.7
1.2
1.2
1.2
1.2
MAX
t
t
6.5
7
6.2
6.5
6.7
8
PLH
PHL
PZH
Any A
ns
ns
ns
Y
Y
Y
t
7
OE or OE
OE or OE
t
8.5
7
PZL
t
4.1
4.1
6
7
PHZ
t
6
7.5
7
PLZ
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 2: Load circuits and waveforms are shown in Section 1.
2–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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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