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SN74HC646DWRG4 PDF预览

SN74HC646DWRG4

更新时间： 2024-11-26 14:44:51
品牌 Logo 应用领域
罗彻斯特 - ROCHESTER 光电二极管逻辑集成电路触发器
页数 文件大小 规格书
15页 618K
描述
Registered Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, True Output, CMOS, PDSO24, GREEN, PLASTIC, SOIC-24

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SN74HC646DWRG4 技术参数

生命周期：Contact Manufacturer包装说明：SOP,
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.57Is Samacsys：N
其他特性：WITH DIRECTION CONTROL系列：HC/UH
JESD-30 代码：R-PDSO-G24长度：15.4 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：85 °C
最低工作温度：-40 °C输出特性：3-STATE
输出极性：TRUE封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE传播延迟（tpd）：330 ns
座面最大高度：2.65 mm最大供电电压 (Vsup)：6 V
最小供电电压 (Vsup)：2 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
宽度：7.5 mmBase Number Matches：1

SN74HC646DWRG4 数据手册

 浏览型号SN74HC646DWRG4的Datasheet PDF文件第2页浏览型号SN74HC646DWRG4的Datasheet PDF文件第3页浏览型号SN74HC646DWRG4的Datasheet PDF文件第4页浏览型号SN74HC646DWRG4的Datasheet PDF文件第5页浏览型号SN74HC646DWRG4的Datasheet PDF文件第6页浏览型号SN74HC646DWRG4的Datasheet PDF文件第7页 
SN54HC646, SN74HC646  
OCTAL BUS TRANSCEIVERS AND REGISTERS  
WITH 3-STATE OUTPUTS  
SCLS150C – DECEMBER 1982 – REVISED MARCH 2003  
Wide Operating Voltage Range of 2 V to 6 V  
±6-mA Output Drive at 5 V  
High-Current 3-State Outputs Can Drive Up  
To 15 LSTTL Loads  
Low Input Current of 1 µA Max  
Independent Registers for A and B Buses  
Multiplexed Real-Time and Stored Data  
True Data Paths  
Low Power Consumption, 80-µA Max I  
CC  
Typical t = 11 ns  
pd  
SN54HC646 . . . JT OR W PACKAGE  
SN74HC646 . . . DW OR NT PACKAGE  
(TOP VIEW)  
SN54HC646 . . . FK PACKAGE  
(TOP VIEW)  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
CLKAB  
SAB  
DIR  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
GND  
V
CC  
2
CLKBA  
SBA  
OE  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
3
4
3
2
1
28 27 26  
25  
A1  
A2  
A3  
NC  
A4  
OE  
B1  
B2  
NC  
B3  
B4  
B5  
5
6
7
8
9
4
24  
23  
22  
21  
20  
19  
5
6
7
8
A5 10  
11  
9
A6  
10  
11  
12  
12 13 14 15 16 17 18  
B8  
NC – No internal connection  
description/ordering information  
The ’HC646 devices consist of bus-transceiver circuits with 3-state outputs, 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 ’HC646 devices.  
Output-enable (OE) and direction-control (DIR) inputs control the transceiver functions. In the transceiver  
mode, data present at the high-impedance port may be stored in either or both registers.  
The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode) data. DIR  
determines which bus receives data when OE is active (low). In the isolation mode (OE high), A data may be  
stored in one register and/or B data may be stored in the other register.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
PDIP – NT  
SOIC – DW  
Tube  
SN74HC646NT  
SN74HC646DW  
SN74HC646DWR  
SNJ54HC646JT  
SNJ54HC646W  
SNJ54HC646FK  
SN74HC646NT  
–40°C to 85°C  
–55°C to 125°C  
Tube  
HC646  
Tape and reel  
Tube  
CDIP – JT  
CFP – W  
SNJ54HC646JT  
SNJ54HC646W  
SNJ54HC646FK  
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 2003, Texas Instruments Incorporated  
UNLESS OTHERWISE NOTED this document contains PRODUCTION  
DATA information 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  
1234567...15

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