SN74BCT29834NT-10 [TI]
BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP24;型号: | SN74BCT29834NT-10 |
厂家: | TEXAS INSTRUMENTS |
描述: | BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP24 信息通信管理 光电二极管 输出元件 逻辑集成电路 |
文件: | 总9页 (文件大小:212K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ꢀꢁꢂ ꢃ ꢄ ꢅꢆ ꢇꢈ ꢉꢊꢃ
ꢉ ꢋꢄꢌ ꢆꢍ ꢆꢎ ꢍꢈ ꢋꢄꢌ ꢆ ꢍꢏꢐꢑꢌ ꢆ ꢒꢍꢄ ꢓꢀꢍ ꢆꢑꢐ ꢁꢀ ꢅ ꢔꢌ ꢕ ꢔꢑ
ꢖ
SCBS256 − SEPTEMBER 1987 − REVISED NOVEMBER 1993
DW OR NT PACKAGE
(TOP VIEW)
• BiCMOS Process With TTL Inputs and
Outputs
• BiCMOS Design Reduces Standby Current
OEA
A1
V
CC
B1
1
24
23
22
21
20
19
18
17
16
15
14
• Flow-Through Pinout (All Inputs on
2
Opposite Side From Outputs)
A2
B2
3
A3
B3
4
• Functionally Equivalent to SN74ALS29834
A4
B4
5
and AMD Am29834
A5
B5
6
• High-Speed Bus Transceiver With Parity
A6
B6
7
Generator/Checker
A7
B7
8
• Parity-Error Flag With Open-Collector
A8
B8
9
Output
ERR
CLR
PARITY
OEB
10
11
• Available Register For Storage of the
Parity-Error Flag
GND 12
13 CLK
• Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic 300-mil DIPs (NT)
description
The SN74BCT29834 is an 8-bit to 9-bit parity transceiver designed for asynchronous communication between
data buses. When data is transmitted from the A to B bus, a parity bit is generated. When data is transmitted
from the B to A bus with its corresponding parity bit, the parity-error (ERR) output will indicate whether or not
an error in the B data has occurred. The output-enable (OEA, OEB) inputs can be used to disable the device
so that the buses are effectively isolated.
A 9-bit parity generator/checker generates a parity-odd (PARITY) output and monitors the parity of the I/O ports
with an open-collector parity-error flag (ERR). ERR is clocked into the register on the rising edge of the CLK
input. The error flag register is cleared with a low pulse on the clear (CLR) input. When both OEA and OEB are
low, data is transferred from the A bus to the B bus and inverted parity is generated. Inverted parity is a forced
error condition which gives the designer more system diagnostic capability. The SN74BCT29834 provides
inverting logic.
The SN74BCT29834 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
CLK
OUTPUT AND I/O
†
Bi
∑ of L’s
FUNCTION
Ai
∑ of H’s
‡
A
B
PARITY
ERR
OEB
OEA
CLR
Odd
Even
H
L
L
H
X
X
NA
NA
A
NA
A data to B bus and generate parity
Odd
Even
H
L
H
X
L
H
L
↑
NA
B
X
NA
NA
NA
NA
B data to A bus and check parity
Clear error-flag register
X
X
X
X
H
H
L
H
H
No↑
No↑
↑
X
X
Odd
Even
NC
H
L
§
Isolation
H
L
H
L
X
Z
Z
A
Z
↑
H
Odd
Even
L
H
A data to B bus and generate inverted
parity
X
X
NA
NA
NA
NA = not applicable, NC = no change, X = don’t care
†
‡
§
Summation of high-level inputs includes PARITY along with Bi inputs.
Output states shown assume the ERR output was previously high.
In this mode, the ERR output, when enabled, shows inverted parity of the A bus.
ꢏ
ꢏ
ꢑ
ꢎ
ꢧ
ꢗ
ꢢ
ꢓ
ꢅ
ꢠ
ꢆ
ꢡ
ꢌ
ꢛ
ꢎ
ꢙ
ꢁ
ꢚ
ꢗ
ꢐ
ꢆ
ꢐ
ꢘ
ꢙ
ꢣ
ꢚ
ꢛ
ꢡ
ꢜ
ꢝ
ꢞ
ꢞ
ꢟ
ꢟ
ꢘ
ꢘ
ꢛ
ꢛ
ꢙ
ꢙ
ꢘ
ꢠ
ꢠ
ꢤ
ꢡ
ꢢ
ꢜ
ꢜ
ꢣ
ꢣ
ꢙ
ꢟ
ꢞ
ꢝ
ꢠ
ꢠ
ꢛ
ꢚ
ꢤ
ꢆꢣ
ꢢ
ꢥ
ꢠ
ꢦ
ꢘ
ꢡ
ꢞ
ꢠ
ꢟ
ꢘ
ꢟ
ꢛ
ꢜ
ꢙ
ꢢ
ꢧ
ꢞ
ꢙ
ꢟ
ꢟ
ꢣ
ꢠ
ꢨ
Copyright 1993, Texas Instruments Incorporated
ꢜ
ꢛ
ꢡ
ꢟ
ꢛ
ꢜ
ꢝ
ꢟ
ꢛ
ꢠ
ꢤ
ꢘ
ꢚ
ꢘ
ꢡ
ꢣ
ꢜ
ꢟ
ꢩ
ꢟ
ꢣ
ꢜ
ꢛ
ꢚ
ꢪ
ꢞ
ꢌ
ꢙ
ꢝ
ꢣ
ꢠ
ꢟ
ꢞ
ꢙ
ꢧ
ꢞ
ꢜ
ꢧ
ꢫ
ꢞ
ꢟ ꢣ ꢠ ꢟꢘ ꢙꢭ ꢛꢚ ꢞ ꢦꢦ ꢤꢞ ꢜ ꢞ ꢝ ꢣ ꢟ ꢣ ꢜ ꢠ ꢨ
ꢜ
ꢜ
ꢞ
ꢙ
ꢟ
ꢬ
ꢨ
ꢏ
ꢜ
ꢛ
ꢧ
ꢢ
ꢡ
ꢟ
ꢘ
ꢛ
ꢙ
ꢤ
ꢜ
ꢛ
ꢡ
ꢣ
ꢠ
ꢠ
ꢘ
ꢙ
ꢭ
ꢧ
ꢛ
ꢣ
ꢠ
ꢙ
ꢛ
ꢟ
ꢙ
ꢣ
ꢡ
ꢣ
ꢠ
ꢠ
ꢞꢜ
ꢘ
ꢦ
ꢬ
ꢘ
ꢙ
ꢡ
ꢦ
ꢢ
ꢧ
ꢣ
2−1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆ ꢇꢈꢉ ꢊ ꢃ
ꢉ ꢋꢄ ꢌ ꢆ ꢍꢆꢎꢍ ꢈ ꢋꢄ ꢌ ꢆꢍ ꢏꢐꢑ ꢌ ꢆꢒꢍ ꢄꢓ ꢀꢍ ꢆꢑ ꢐꢁ ꢀꢅꢔ ꢌꢕꢔ ꢑ
ꢖ
SCBS256 − SEPTEMBER 1987 − REVISED NOVEMBER 1993
functional logic diagram (positive logic)
8x
8
8
A1−A8
B1−B8
EN
8
8x
EN
OEB
PARITY
8
OEA
8
MUX
1
1
2k
9
P
1
1
G1
1D
ERR
CLK
CLR
C1
R
2−2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
ꢀꢁꢂ ꢃ ꢄ ꢅꢆ ꢇꢈ ꢉꢊꢃ
ꢉ ꢋꢄꢌ ꢆꢍ ꢆꢎ ꢍꢈ ꢋꢄꢌ ꢆ ꢍꢏꢐꢑꢌ ꢆ ꢒꢍꢄ ꢓꢀꢍ ꢆꢑꢐ ꢁꢀ ꢅ ꢔꢌ ꢕ ꢔꢑ
ꢖ
SCBS256 − SEPTEMBER 1987 − REVISED NOVEMBER 1993
error-flag waveforms
H
L
OEB
H
L
OEA
Even
Odd
Bi + PARITY
t
su
t
h
H
L
CLK
t
t
w
su
t
w
H
L
CLR
ERR
t
t
PLH
PHL
H
L
ERROR-FLAG FUNCTION TABLE
INTERNAL
TO DEVICE
OUTPUT
PRESTATE
INPUTS
OUTPUT
FUNCTION
†
POINT P
CLR
CLK
ERR
n−1
ERR
H
H
H
↑
↑
↑
H
X
L
H
L
X
H
L
L
Sample
Clear
L
X
X
X
H
†
ERR represents the state of the ERR output before any changes at CLR, CLK,
n−1
or point P.
‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I
Voltage applied to a disabled I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
2−3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆ ꢇꢈꢉ ꢊ ꢃ
ꢉ ꢋꢄ ꢌ ꢆ ꢍꢆꢎꢍ ꢈ ꢋꢄ ꢌ ꢆꢍ ꢏꢐꢑ ꢌ ꢆꢒꢍ ꢄꢓ ꢀꢍ ꢆꢑ ꢐꢁ ꢀꢅꢔ ꢌꢕꢔ ꢑ
ꢖ
SCBS256 − SEPTEMBER 1987 − REVISED NOVEMBER 1993
recommended operating conditions
MIN NOM
MAX
UNIT
V
V
V
V
V
Supply voltage
4.5
2
5
5.5
CC
High-level input voltage
Low-level input voltage
High-level output voltage, ERR
High-level output current
Low-level output current
Operating free-air temperature
V
IH
0.8
2.4
−24
48
V
IL
V
OH
I
I
mA
mA
°C
OH
OL
T
A
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
†
PARAMETER
TEST CONDITIONS
I = −18 mA
MIN TYP
MAX
UNIT
V
V
V
V
= 4.5 V,
= 4.5 V
−1.2
V
IK
CC
I
I
= −15 mA
= −24 mA
2.4
2
OH
OH
All inputs/outputs except ERR
ERR
V
OH
CC
I
I
V
CC
V
CC
V
CC
V
CC
= 4.5 V,
= 4.5 V,
= 5.5 V,
= 5.5 V,
V
= 2.4 V
20
0.5
µA
V
OH
OH
= 48 mA
V
OL
I
0.35
OL
V = 5.5 V
I
I
0.1
mA
µA
I
I
‡
V = 2.7 V
I
20
IH
Data
−0.2
−0.75
−250
80
‡
V
= 5.5 V,
V = 0.4 V
I
mA
I
CC
IL
Control
§
I
I
I
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V,
V = 0
O
−75
mA
mA
mA
OS
Outputs open
Outputs open
55
30
CCL
45
CCZ
†
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
These parameters include off-state output current for I/O ports only.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
MIN
10
10
10
12
12
0
MAX
UNIT
CLK high
CLK low
t
Pulse duration
ns
w
CLR low
Bi and PARITY
CLR inactive
Bi and PARITY
Setup time before CLK↑
Hold time after CLK↑
t
t
ns
ns
su
h
2−4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
ꢀꢁꢂ ꢃ ꢄ ꢅꢆ ꢇꢈ ꢉꢊꢃ
ꢉ ꢋꢄꢌ ꢆꢍ ꢆꢎ ꢍꢈ ꢋꢄꢌ ꢆ ꢍꢏꢐꢑꢌ ꢆ ꢒꢍꢄ ꢓꢀꢍ ꢆꢑꢐ ꢁꢀ ꢅ ꢔꢌ ꢕ ꢔꢑ
ꢖ
SCBS256 − SEPTEMBER 1987 − REVISED NOVEMBER 1993
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C = 50 pF (unless otherwise noted) (see Note 1)
L
V
= 5 V,
V
= 4.5 V to 5.5 V,
C = 50 pF,
L
CC
CC
CL = 50 pF,
R1 = 500 Ω,
R2 = 500 Ω,
R1 = 500 Ω,
R2 = 500 Ω,
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
†
T = MIN to MAX
A
T
A
= 25°C
TYP
5
MIN
1
MAX
7
MIN
1
MAX
8
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
A or B
A
B or A
PARITY
A or B
A or B
ERR
ns
ns
ns
ns
ns
ns
1.5
1.5
1.5
2
4
6
1.5
1.5
1.5
2
7
10
8
13
10
15
19
11
17
10
17
13
13
15
15
19
21
15
21
12
18
15
15
11
15
8
OEA or OEB
OEA or OEB
2
2
2
2
2
13
7
2
CLK
CLR
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
t
PLH
13
10
10
t
t
PLH
OEA
PARITY
PHL
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 1: Load circuits and voltage waveforms are shown in Section 1.
2−5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
PACKAGE OPTION ADDENDUM
www.ti.com
7-Jun-2010
PACKAGING INFORMATION
Status (1)
Eco Plan (2)
MSL Peak Temp (3)
Samples
Orderable Device
Package Type Package
Drawing
Pins
Package Qty
Lead/
Ball Finish
(Requires Login)
Samples Not Available
Samples Not Available
Samples Not Available
SN74BCT29834DW
SN74BCT29834DWR
SN74BCT29834NT
OBSOLETE
OBSOLETE
OBSOLETE
SOIC
SOIC
PDIP
DW
DW
NT
24
24
24
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
(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), Pb-Free (RoHS Exempt), 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.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
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 TI 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. Information of third parties may be subject to additional
restrictions.
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.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Applications
Audio
www.ti.com/audio
amplifier.ti.com
dataconverter.ti.com
www.dlp.com
Communications and Telecom www.ti.com/communications
Amplifiers
Data Converters
DLP® Products
DSP
Computers and Peripherals
Consumer Electronics
Energy and Lighting
Industrial
www.ti.com/computers
www.ti.com/consumer-apps
www.ti.com/energy
dsp.ti.com
www.ti.com/industrial
www.ti.com/medical
www.ti.com/security
Clocks and Timers
Interface
www.ti.com/clocks
interface.ti.com
logic.ti.com
Medical
Security
Logic
Space, Avionics and Defense www.ti.com/space-avionics-defense
Power Mgmt
power.ti.com
Transportation and
Automotive
www.ti.com/automotive
Microcontrollers
RFID
microcontroller.ti.com
www.ti-rfid.com
Video and Imaging
Wireless
www.ti.com/video
www.ti.com/wireless-apps
RF/IF and ZigBee® Solutions www.ti.com/lprf
TI E2E Community Home Page
e2e.ti.com
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2011, Texas Instruments Incorporated
相关型号:
SN74BCT29841NT
BCT/FBT SERIES, 10-BIT DRIVER, TRUE OUTPUT, PDIP24, 0.300 INCH, CERAMIC, DIP-24
ROCHESTER
©2020 ICPDF网 联系我们和版权申明