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CD54HC573F データシート(PDF) 1 Page - Texas Instruments

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部品番号 CD54HC573F
部品情報  OCTAL TRANSPARENT D-TYPE LATCHES
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

CD54HC573F データシート(HTML) 1 Page - Texas Instruments

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CD54HC573, CD74HC573
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS454A – FEBRUARY 2001 – REVISED APRIL 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 2-V to 6-V VCC Operation
D Wide Operating Temperature Range of
–55
°C to 125°C
D 3-State Outputs Directly Drive Bus Lines
D Balanced Propagation Delays and
Transition Times
D Bus Driver Outputs Drive Up To 15 LS-TTL
Loads
D Significant Power Reduction Compared to
LS-TTL Logic ICs
description/ordering information
The ’HC573 devices are octal transparent D-type
latches designed for 2-V to 6-V VCC operation.
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 VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – E
Tube
CD74HC573E
CD74HC573E
55
°Cto125°C
SOIC
M
Tube
CD74HC573M
HC573M
–55
°C to 125°C
SOIC – M
Tape and reel
CD74HC573M96
HC573M
CDIP – F
Tube
CD54HC573F3A
CD54HC573F3A
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright
 2003, Texas Instruments Incorporated
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.
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.
CD54HC573 ...F PACKAGE
CD74HC573 ...E OR M PACKAGE
(TOP VIEW)
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
GND
VCC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
LE
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.


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