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74HC541

更新时间： 2024-11-18 22:53:15
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德州仪器 - TI 驱动器
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8页 44K
描述
High Speed CMOS Logic Octal Buffer and Line Drivers, Three-State

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74HC541 数据手册

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CD74HC540, CD74HCT540,  
CD74HC541, CD74HCT541  
Data sheet acquired from Harris Semiconductor  
SCHS189  
High Speed CMOS Logic  
Octal Buffer and Line Drivers, Three-State  
January 1998  
Features  
Description  
• CD74HC540, CD74HCT540 . . . . . . . . . . . . . . . Inverting The Harris CD74HC540 and CD74HCT540 are Inverting  
Octal Buffers and Line Drivers with Three-State Outputs and  
the capability to drive 15 LSTTL loads. The Harris  
• CD74HC541, CD74HCT541 . . . . . . . . . . . . . .Non-Inverting  
[ /Title  
(CD74  
HC540  
,
CD74  
HCT54  
0,  
CD74  
HC541  
,
CD74  
HCT54  
CD74HC541 and CD74HCT541 are Non-Inverting Octal Buff-  
ers and Line Drivers with Three-State Outputs that can drive  
15 LSTTL loads. The Output Enables (OE1) and (OE2) con-  
trol the Three-State Outputs. If either OE1 or OE2 is HIGH the  
outputs will be in the high impedance state. For data output  
OE1 and OE2 both must be LOW.  
• Buffered Inputs  
• Three-State Outputs  
• Bus Line Driving Capability  
• Typical Propagation Delay = 9ns at V  
o
= 5V,  
CC  
C = 15pF, T = 25 C  
L
A
Ordering Information  
• Fanout (Over Temperature Range)  
TEMP.  
PKG.  
NO.  
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads  
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads  
o
PART NUMBER RANGE ( C)  
PACKAGE  
20 Ld PDIP  
CD74HC540E  
CD74HCT540E  
CD74HC541E  
CD74HCT541E  
CD74HC540M  
CD74HCT540M  
CD74HC541M  
CD74HCT541M  
NOTES:  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
E20.3  
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C  
• Balanced Propagation Delay and Transition Times  
20 Ld PDIP  
20 Ld PDIP  
20 Ld PDIP  
20 Ld SOIC  
20 Ld SOIC  
20 Ld SOIC  
20 Ld SOIC  
E20.3  
E20.3  
E20.3  
M20.3  
M20.3  
M20.3  
M20.3  
• Significant Power Reduction Compared to LSTTL  
Logic ICs  
• HC Types  
- 2V to 6V Operation  
- High Noise Immunity: N = 30%, N = 30% of V  
IL IH CC  
at V  
= 5V  
CC  
1. When ordering, use the entire part number. Add the suffix 96 to  
obtain the variant in the tape and reel.  
• HCT Types  
- 4.5V to 5.5V Operation  
2. Wafer and die for this part number is available which meets all  
electrical specifications. Please contact your local sales office or  
Harris customer service for ordering information.  
- Direct LSTTL Input Logic Compatibility,  
V = 0.8V (Max), V = 2V (Min)  
IL IH  
- CMOS Input Compatibility, I ≤ 1µA at V , V  
l
OL OH  
Pinouts  
CD74HC540, CD74HCT540  
(PDIP, SOIC)  
CD74HC541, CD74HCT541  
(PDIP, SOIC)  
TOP VIEW  
TOP VIEW  
1
2
3
4
5
6
7
8
9
V
1
2
3
4
5
6
7
8
9
V
OE  
A0  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
20  
19  
OE1  
A0  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
20  
19  
CC  
CC  
OE2  
OE2  
18 Y0  
17 Y1  
16 Y2  
15 Y3  
14 Y4  
13 Y5  
18 Y0  
17 Y1  
16 Y2  
15 Y3  
14 Y4  
13 Y5  
12  
12  
Y6  
Y6  
GND 10  
11 Y7  
GND 10  
11 Y7  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
File Number 1659.2  
Copyright © Harris Corporation 1998  
1
12345678

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