SN64BCT2244DW [TI]
Octal Buffer And Line/MOS Driver With 3-State Outputs 20-SOIC -40 to 85;
| 型号： | SN64BCT2244DW |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Octal Buffer And Line/MOS Driver With 3-State Outputs 20-SOIC -40 to 85 驱动 信息通信管理 光电二极管 逻辑集成电路 |
| 文件： | 总6页 (文件大小：90K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN64BCT2244
OCTAL BUFFER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS078A – D3529, JUNE 1990 – DECEMBER 1993
DW OR N PACKAGE
(TOP VIEW)
• State-of-the-Art BiCMOS Design
Significantly Reduces I
CCZ
• ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
V
CC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
• Output Ports Have Equivalent 33-Ω Series
Resistors, So No External Resistors Are
Required
• High-Impedance State During Power-Up and
Power-Down
• 3-State Buffer-Type Outputs Drive Bus
Lines Directly
• Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic 300-mil DIPs (N)
description
The SN64BCT2244 is a noninverting octal buffer and line/MOS driver 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 SN64BCT2240 and SN64BCT2241, 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. These devices feature high fan-out and improved fan-in.
When the output-enable (1OE and 2OE) inputs are low, the device transmits data from the A inputs to the
Y outputs. When 1OE and 2OE are high, the outputs are in the high-impedance state. Output-enable 1OE
affects only the 1Y outputs; output-enable 2OE affects only the 2Y outputs.
Theoutputs, whicharedesignedtosourceorsinkupto12mA, include33-Ω seriesresistorstoreduceovershoot
and undershoot.
The SN64BCT2244 is characterized for operation from –40°C to 85°C and 0°C to 70°C.
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
Y
OE
A
X
L
H
L
L
Z
L
H
H
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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN64BCT2244
OCTAL BUFFER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS078A – D3529, JUNE 1990 – DECEMBER 1993
†
logic symbol
logic diagram (positive logic)
1
1
1OE
1OE
EN
18
2
2
4
6
8
18
16
14
12
1A1
1Y1
1Y2
1
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
16
14
4
1A2
6
1A3
1Y3
1Y4
19
2OE
EN
8
12
1A4
11
13
15
17
9
7
5
3
1
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
schematic of Y outputs
5
3
15
2A3
2Y3
2Y4
V
CC
17
2A4
Output
GND
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN64BCT2244
OCTAL BUFFER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS078A – D3529, JUNE 1990 – DECEMBER 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, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
I
Voltage range applied to any output in the disabled or power-off state, V . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
O
Voltage range applied to any output in the high state, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
O
CC
Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA
IK
I
Current into any output in the low state, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 mA
O
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°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 and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
recommended operating conditions (see Note 2)
MIN NOM
MAX
UNIT
V
V
V
V
Supply voltage
4.5
2
5
5.5
CC
IH
IL
High-level input voltage
Low-level input voltage
Input clamp current
V
0.8
–18
–12
12
V
I
I
I
mA
mA
mA
µs/V
°C
IK
High-level output current
Low-level output current
Power-up ramp rate
OH
OL
∆t/∆V
CC
2
T
A
Operating free-air temperature
–40
85
NOTE 2: Unused or floating inputs must be held high or low.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
‡
PARAMETER
TEST CONDITIONS
I = –18 mA
MIN TYP
MAX
UNIT
V
IK
V
V
= 4.5 V,
= 4.5 V
–1.2
V
CC
I
I
I
I
I
= –1 mA
= –12 mA
= 1 mA
2.4
2
3.3
3.1
OH
OH
OL
OL
V
OH
V
V
CC
0.15
0.35
0.5
0.8
0.1
20
V
OL
V
CC
= 4.5 V
= 12 mA
I
I
I
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
V = 7 V
I
mA
µA
I
= 5.5 V,
V = 2.7 V
I
IH
IL
= 5.5 V,
V = 0.5 V
I
–1
mA
= 0 to 2.3 V (power up)
= 1.8 to 0 V (power down)
= 5.5 V,
±50
±50
50
I
V
= 2.7 or 0.5 V,
µA
OE = 0.8 V
OZ
O
I
I
I
I
I
I
V
O
V
O
V
O
= 2.7 V
= 0.5 V
= 0
µA
µA
OZH
= 5.5 V,
–50
–225
77
OZL
§
= 5.5 V,
–100
mA
mA
mA
mA
pF
OS
= 5.5 V,
Outputs open
Outputs open
Outputs open
53
23
4
CCL
CCH
CCZ
= 5.5 V,
37
= 5.5 V,
10
C
C
= 5 V,
V = V
or GND
6
i
I
CC
= V or GND
CC
= 5 V,
V
O
11
pF
o
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN64BCT2244
OCTAL BUFFER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS078A – D3529, JUNE 1990 – DECEMBER 1993
switching characteristics over recommended range of supply voltage, C = 50 pF (unless
L
otherwise noted) (see Note 3)
V
T
= 5 V,
= 25°C
T
= –40°C
to 85°C
T = 0°C
A
CC
A
A
FROM
(INPUT)
TO
(OUTPUT)
to 70°C
PARAMETER
UNIT
MIN
0.5
1.6
2.4
3.9
1.7
2.8
TYP
3
MAX
4.4
6.3
7.7
9.4
6.9
8.3
MIN MAX
MIN MAX
t
t
t
t
t
t
0.5
1.6
2.4
3.9
1.7
2.8
5.2
7.1
0.5
1.6
2.4
3.9
1.7
2.8
4.9
6.7
PLH
PHL
PZH
PZL
PHZ
PLZ
A
Y
Y
Y
ns
ns
ns
4.6
6.1
7.6
5.2
6.5
9.1
8.7
OE
OE
10.8
8.1
10.4
7.8
10.9
9.8
NOTE 3: Load circuits and voltage waveforms are shown in Section 1.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
24-Jun-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
SOIC
SOIC
PDIP
Drawing
SN64BCT2244DW
SN64BCT2244DWR
SN64BCT2244N
OBSOLETE
OBSOLETE
OBSOLETE
DW
20
20
20
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
DW
N
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Audio
Amplifiers
amplifier.ti.com
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
Digital Control
Military
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/military
Interface
Logic
interface.ti.com
logic.ti.com
Power Mgmt
Microcontrollers
power.ti.com
Optical Networking
Security
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
microcontroller.ti.com
Telephony
Video & Imaging
Wireless
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright 2005, Texas Instruments Incorporated
相关型号：
©2020 ICPDF网 联系我们和版权申明