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CD54HCT573_16

更新时间： 2024-10-01 02:58:51
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德州仪器 - TI 输出元件
页数 文件大小 规格书
11页 345K
描述
OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS

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CD54HCT573_16 数据手册

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SCLS455C − FEBRUARY 2001 − REVISED MAY 2004  
CD54HCT573 . . . F PACKAGE  
CD74HCT573 . . . DB, E, OR M PACKAGE  
(TOP VIEW)  
D
D
4.5-V to 5.5-V V  
Operation  
CC  
Wide Operating Temperature Range of  
−55°C to 125°C  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
OE  
1D  
2D  
3D  
4D  
5D  
6D  
7D  
8D  
V
CC  
D
D
D
D
Balanced Propagation Delays and  
Transition Times  
1Q  
2Q  
3Q  
4Q  
5Q  
6Q  
7Q  
8Q  
LE  
Standard Outputs Drive Up To 10 LS-TTL  
Loads  
Significant Power Reduction Compared to  
LS-TTL Logic ICs  
Inputs Are TTL-Voltage Compatible  
description/ordering information  
GND  
The ’HCT573 devices are octal transparent  
D-type latches. When the latch-enable (LE) input  
is high, the Q outputs follow the data (D) inputs.  
When LE is low, the Q outputs are latched at the  
logic levels of the D inputs.  
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high  
or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines  
significantly. The high-impedance state and increased drive provide the capability to drive bus lines without  
interface or pullup components.  
OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered  
while the outputs are in the high-impedance state.  
To ensure the high-impedance state during power up or power down, OE should be tied to V  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
through a pullup  
CC  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
T
A
PACKAGE  
PDIP − E Tube  
CD74HCT573E  
CD74HCT573E  
HK573  
SSOP − DB Tape and reel  
Tube  
CD74HCT573DBR  
CD74HCT573M  
CD74HCT573M96  
CD54HCT573F3A  
−55°C to 125°C  
SOIC − M  
HCT573M  
Tape and reel  
CDIP − F  
Tube  
CD54HCT573F3A  
†
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.  
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Copyright 2004, Texas Instruments Incorporated  
ꢉ ꢗ ꢢ ꢚ ꢙꢥ ꢠꢟ ꢝꢞ ꢟꢙ ꢛꢢ ꢤꢖ ꢜꢗ ꢝ ꢝꢙ ꢬꢔ ꢋꢑ ꢏꢌ ꢭ ꢑꢇꢮꢂ ꢇꢂꢈ ꢜꢤꢤ ꢢꢜ ꢚ ꢜ ꢛꢡ ꢝꢡꢚ ꢞ ꢜ ꢚ ꢡ ꢝꢡ ꢞꢝꢡ ꢥ  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...11

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