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CD54FCT241 PDF预览

CD54FCT241

更新时间： 2024-09-18 00:00:55
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
4页 27K
描述
FCT Interface Logic Octal Buffers/Line Drivers, Three-State

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CD54FCT241 数据手册

 浏览型号CD54FCT241的Datasheet PDF文件第2页浏览型号CD54FCT241的Datasheet PDF文件第3页浏览型号CD54FCT241的Datasheet PDF文件第4页 
CD74FCT240AT and CD74FCT244AT were not acquired from Harris Semiconductor.  
CD54/74FCT240, CD54/74FCT240AT,  
CD54/74FCT241, CD54/74FCT244,  
Data sheet acquired from Harris Semiconductor  
SCHS270A  
CD54/74FCT244AT  
FCT Interface Logic  
Octal Buffers/Line Drivers, Three-State  
February 1996  
Features  
Description  
• CD54/74FCT240, CD54/74FCT240AT - Inverting  
The CD54/74FCT240, 240AT, 241, 244 and 244AT three-  
state octal buffers/line drivers use  
a small-geometry  
• CD54/74FCT241, CD54/74FCT244, CD54/74FCT244AT -  
Non-Inverting  
BiCMOS technology. The output stage is a combination of  
bipolar and CMOS transistors that limits the output-HIGH  
level to two diode drops below VCC. This resultant lowering  
of output swing (0V to 3.7V) reduces power bus ringing (a  
source of EMI) and minimizes VCC bounce and ground  
bounce and their effects during simultaneous output  
switching. The output configuration also enhances switching  
speed and is capable of sinking 48mA to 64mA.  
• Buffered Inputs  
• Typical Propagation Delay:  
o
4.1ns at VCC = 5V, TA = 25 C (FCT240AT, FCT244AT)  
• SCR-Latchup-Resistant BiCMOS Process and Circuit  
Design  
The CD54/74FCT240, 240AT, 244 and 244AT have active-  
LOW output enables (1OE, 2OE). The CD54/74FCT241 and  
CD54/74FCT241AT have one active-LOW (1OE) and one  
active-HIGH (2OE) output enable.  
• FCTXXX Types - Speed of Bipolar FAST®/AS/S;  
FCTXXXAT Types - 30% Faster Than FAST/AS/S with  
Significantly Reduced Power Consumption  
• 48mA to 64mA Output Sink Current (Commer-  
cial/Extended Industrial)  
Functional Diagram  
241, 244 240  
• Output Voltage Swing Limited to 3.7V at VCC = 5V  
• Controlled Output-Edge Rates  
2
4
18  
16  
14  
12  
9
1A0  
1A1  
1A2  
1A3  
2A0  
2A1  
2A2  
2A3  
1Y0  
1Y1  
1Y2  
1Y3  
2Y0  
2Y1  
2Y2  
2Y3  
1Y0  
1Y1  
1Y2  
1Y3  
2Y0  
2Y1  
2Y2  
2Y3  
6
8
• Input/Output Isolation to VCC  
11  
13  
15  
17  
• BiCMOS Technology with Low Quiescent Power  
7
5
3
240, 244 241  
Ordering Information  
1
19  
VCC = 20  
GND = 10  
1OE  
1OE  
o
PART NUMBER  
CD54/74FCT240E  
CD54/74FCT240ATE  
CD54/74FCT241E  
CD54/74FCT244E  
CD54/74FCT244ATE  
CD54/74FCT240M  
CD54/74FCT240ATM  
CD54/74FCT241M  
CD54/74FCT244M  
CD54/74FCT244ATM  
CD54/74FCT240SM  
CD54/74FCT241SM  
CD54/74FCT244SM  
CD54FCT240H  
TEMP. RANGE ( C)  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125, 0 to 70  
-55 to 125  
PACKAGE  
20 Ld PDIP  
20 Ld PDIP  
20 Ld PDIP  
20 Ld PDIP  
20 Ld PDIP  
20 Ld SOIC  
20 Ld SOIC  
20 Ld SOIC  
20 Ld SOIC  
20 Ld SOIC  
20 Ld SSOP  
20 Ld SSOP  
20 Ld SSOP  
2OE  
2OE  
CD54/74FCT240, CD54/74FCT240AT TRUTH TABLE  
INPUT  
INPUT  
OUTPUT  
1OE, 20E  
A
L
Y
H
L
L
L
H
X
H
Z
CD54/74FCT244, CD54/74FCT244AT TRUTH TABLE  
INPUT  
INPUT  
OUTPUT  
1OE, 2OE  
A
L
Y
H
L
L
L
H
X
H
Z
CD54/74FCT241 TRUTH TABLE  
INPUT  
OUTPUT  
INPUT  
OUTPUT  
1OE  
1A  
L
1Y  
L
2OE  
L
2A  
X
2Y  
Z
CD54FCT241H  
-55 to 125  
L
L
H
H
Z
H
L
L
CD54FCT244H  
-55 to 125  
H
X
H
H
H
NOTE: H = High Voltage Level, L = LOW Voltage Level  
X = Immaterial, Z = HIGH Impedance  
FAST® is a registered trademark of Fairchild Semiconductor Corporation.  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
File Number 2227.3  
Copyright © Harris Corporation 1996  
1
1234

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