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SN74BCT646W PDF预览

SN74BCT646W

更新时间： 2024-11-05 21:16:31
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理光电二极管输出元件逻辑集成电路
页数 文件大小 规格书
16页 361K
描述
BCT/FBT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDFP24, PLASTIC, DFP-24

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SN74BCT646W 技术参数

生命周期：Obsolete零件包装代码：DFP
包装说明：DFP,针数：24
Reach Compliance Code：unknown风险等级：5.76
系列：BCT/FBTJESD-30 代码：R-PDFP-F24
长度：14.36 mm逻辑集成电路类型：REGISTERED BUS TRANSCEIVER
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：3-STATE输出极性：TRUE
封装主体材料：PLASTIC/EPOXY封装代码：DFP
封装形状：RECTANGULAR封装形式：FLATPACK
传播延迟（tpd）：10.5 ns认证状态：Not Qualified
座面最大高度：2.29 mm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：YES技术：BICMOS
温度等级：COMMERCIAL端子形式：FLAT
端子节距：1.27 mm端子位置：DUAL
宽度：9.09 mmBase Number Matches：1

SN74BCT646W 数据手册

 浏览型号SN74BCT646W的Datasheet PDF文件第2页浏览型号SN74BCT646W的Datasheet PDF文件第3页浏览型号SN74BCT646W的Datasheet PDF文件第4页浏览型号SN74BCT646W的Datasheet PDF文件第5页浏览型号SN74BCT646W的Datasheet PDF文件第6页浏览型号SN74BCT646W的Datasheet PDF文件第7页 
SN54BCT646, SN74BCT646  
OCTAL BUS TRANSCEIVERS AND REGISTERS  
WITH 3-STATE OUTPUTS  
SCBS037D − AUGUST 1989 − REVISED MAY 2004  
D
State-of-the-Art BiCMOS Design  
Significantly Reduces I  
D
D
Multiplexed Real-Time and Stored Data  
CCZ  
ESD Protection Exceeds JESD 22  
− 2000-V Human-Body Model (A114-A)  
− 200-V Machine Model (A115-A)  
D
Bus Transceivers/Registers  
D
Independent Registers and Enables for  
A and B Buses  
SN54BCT646 . . . JT OR W PACKAGE  
SN74BCT646 . . . DW OR NT PACKAGE  
(TOP VIEW)  
SN54BCT646 . . . FK PACKAGE  
(TOP VIEW)  
CLKAB  
SAB  
DIR  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
GND  
VCC  
CLKBA  
SBA  
OE  
B1  
B2  
B3  
B4  
B5  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
2
3
4
3
2
1 28 27 26  
25  
A1  
A2  
A3  
NC  
A4  
A5  
A6  
OE  
B1  
B2  
NC  
B3  
B4  
B5  
5
4
24  
23  
22  
21  
20  
19  
6
5
7
6
8
7
9
8
10  
11  
9
B6  
B7  
B8  
10  
11  
12  
12 13 14 15 16 17 18  
NC − No internal connection  
description/ordering information  
These devices consist of bus transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed  
transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked  
into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1  
illustrates the four fundamental bus-management functions that can be performed with the ’BCT646 devices.  
Output-enable (OE) and direction-control (DIR) inputs are provided to control the transceiver functions. In the  
transceiver mode, data present at the high-impedance port can be stored in either register or in both.  
The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode) data. The  
direction control (DIR) determines which bus will receive data when OE is low. In the isolation mode (OE high),  
A data can be stored in one register and/or B data can be stored in the other register.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
T
A
PACKAGE  
PDIP − NT  
SOIC − DW  
Tube  
SN74BCT646NT  
SN74BCT646DW  
SN74BCT646DWR  
SNJ54BCT646JT  
SNJ54BCT646W  
SNJ54BCT646FK  
SN74BCT646NT  
Tube  
0°C to 70°C  
BCT646  
Tape and reel  
Tube  
CDIP − JT  
CFP − W  
SNJ54BCT646JT  
SNJ54BCT646W  
SNJ54BCT646FK  
−55°C to 125°C  
Tube  
LCCC − FK  
Tube  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright © 2004, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
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  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...16

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SN74BCT648DW TI

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SN74BCT648DWR TI

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SN74BCT648NT TI

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SN74BCT651 TI

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SN74BCT651DW TI

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 		OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS
SN74BCT651DWR TI

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 		OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS
SN74BCT651NT TI

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 		OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS
SN74BCT652 TI

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 		OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SN74BCT652DW TI

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 		OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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