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SN74BCT29854NT

更新时间： 2024-11-14 22:38:35
品牌 Logo 应用领域
德州仪器 - TI 总线收发器逻辑集成电路光电二极管信息通信管理
页数 文件大小 规格书
7页 101K
描述
8-BIT TO 9-BIT PARITY BUS TRANSCEIVER

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SN74BCT29854NT 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：DIP
包装说明：DIP, DIP24,.3针数：24
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：5.7其他特性：PARITY GENERATION A TO B; ERROR DETECTION B TO A; ODD PARITY
控制类型：INDEPENDENT CONTROL计数方向：BIDIRECTIONAL
系列：BCT/FBTJESD-30 代码：R-PDIP-T24
JESD-609代码：e4长度：31.64 mm
负载电容（CL）：50 pF逻辑集成电路类型：BUS TRANSCEIVER
最大I（ol）：0.048 A位数：8
功能数量：1端口数量：2
端子数量：24最高工作温度：70 °C
最低工作温度：输出特性：OPEN-COLLECTOR
输出极性：INVERTED封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP24,.3
封装形状：RECTANGULAR封装形式：IN-LINE
包装方法：TUBE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V最大电源电流（ICC）：80 mA
Prop。Delay @ Nom-Sup：8 ns传播延迟（tpd）：8 ns
认证状态：Not Qualified座面最大高度：5.08 mm
子类别：Bus Driver/Transceivers最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 V
表面贴装：NO技术：BICMOS
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
翻译：N/A宽度：7.62 mm
Base Number Matches：1

SN74BCT29854NT 数据手册

 浏览型号SN74BCT29854NT的Datasheet PDF文件第2页浏览型号SN74BCT29854NT的Datasheet PDF文件第3页浏览型号SN74BCT29854NT的Datasheet PDF文件第4页浏览型号SN74BCT29854NT的Datasheet PDF文件第5页浏览型号SN74BCT29854NT的Datasheet PDF文件第6页浏览型号SN74BCT29854NT的Datasheet PDF文件第7页 
SN74BCT29854  
8-BIT TO 9-BIT PARITY BUS TRANSCEIVER  
SCBS257 – SEPTEMBER 1987 – REVISED NOVEMBER 1993  
DW OR NT PACKAGE  
(TOP VIEW)  
• BiCMOS Process With TTL Inputs and  
Outputs  
• State-of-the-Art BiCMOS Design  
OEA  
A1  
V
CC  
B1  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
Significantly Reduces Standby Current  
2
• Flow-Through Pinout (All Inputs on  
A2  
B2  
3
Opposite Side From Outputs)  
A3  
B3  
4
A4  
B4  
5
• Functionally Equivalent to AMD Am29854  
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  
• Latch for Storage of the Parity-Error Flag  
• Package Options Include Plastic  
Small-Outline (DW) Packages and Standard  
Plastic 300-mil DIPs (NT)  
GND 12  
13 LE  
description  
The SN74BCT29854 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 (ERR) flag. ERR can be either passed, sampled, stored, or cleared from the  
latch using the latch-enable (LE) and clear (CLR) control inputs. 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 SN74BCT29854 provides inverting logic.  
The SN74BCT29854 is characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
LE  
OUTPUT AND I/O  
†
Bi  
∑ of L’s  
FUNCTION  
Ai  
∑ of H’s  
‡
OEB  
L
OEA  
H
CLR  
X
A
NA  
B
B
A
PARITY  
ERR  
Odd  
Even  
H
L
X
L
NA  
NA  
A data to B bus and generate parity  
B data to A bus and check parity  
Odd  
Even  
H
L
H
L
X
NA  
NA  
NA  
H
X
L
H
L
H
H
NA  
X
X
X
X
X
NA  
NA  
NA  
NA  
N–1  
H
Store error flag  
X
Clear error-flag register  
H
L
X
X
H
H
L
X
X
NC  
H
L
§
Isolation  
H
L
H
L
X
Z
Z
A
Z
L Odd  
H Even  
L
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 low-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 noninverted parity of the A bus.  
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  
1234567

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SN74BCT29854NT 替代型号

型号 品牌 替代类型 描述 数据表
SN74BCT29854DWRE4 TI

完全替代

 BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOIC-24
SN74BCT29854DWR TI

完全替代

 BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOIC-24
SN74BCT29854DW TI

完全替代

 8-BIT TO 9-BIT PARITY BUS TRANSCEIVER

与SN74BCT29854NT相关器件

型号 品牌 获取价格 描述 数据表
SN74BCT29854NT-10 TI

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 		BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP24
SN74BCT29854NTE4 TI

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 		BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP24, 0.300 INCH, ROHS COMPLIANT, PL
SN74BCT29861ADW TI

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 		IC,BUS TRANSCEIVER,SINGLE,10-BIT,BICMOS-TTL,SOP,24PIN,PLASTIC
SN74BCT29861ANT TI

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 		IC,BUS TRANSCEIVER,SINGLE,10-BIT,BICMOS-TTL,DIP,24PIN,PLASTIC
SN74BCT29861B TI

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 		10-BIT BUS TRANSECVEIVER WITH 3-STATE OUTPUTS
SN74BCT29861BDW TI

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 		10-Bit Bus Transceivers 24-SOIC 0 to 70
SN74BCT29861BDWR TI

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 		暂无描述
SN74BCT29861BNT TI

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 		10-Bit Bus Transceivers 24-PDIP 0 to 70
SN74BCT29862B TI

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 		10-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74BCT29862BDW TI

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 		10-Bit Bus Transceivers 24-SOIC 0 to 70

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