Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74HCT573
CMOS IC
OCTAL TRANSPARENT D-TYPE
LATCHES WITH 3-STATE
OUTPUTS

DESCRIPTION
The UTC U74HCT573 are octal D-type transparent latches
featuring separate D-type inputs for each latch and non-inverting
3-state outputs for bus-oriented applications.

FEATURES
* Operation Voltage Range: 4.5V~5.5V
* 3-state Non-Inverting Outputs for Bus-oriented Applications
* Common 3-state Output Enable Input
* Inputs are TTL voltage compatible

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74HCT573L-P20-T
U74HCT573G-P20-T
U74HCT573L-P20-R
U74HCT573G-P20-R
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Copyright © 2013 Unisonic Technologies Co., Ltd
Package
Packing
TSSOP-20
TSSOP-20
Tube
Tape Reel
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U74HCT573


CMOS IC
PIN CONFIGURATION
OE
1
20
VCC
1D
2
19
1Q
2D
3
18
2Q
3D
4
17
3Q
4D
5
16
4Q
5D
6
15
5Q
6D
7
14
6Q
7D
8
13
7Q
8D
9
12
8Q
GND
10
11
LE
FUNCTION TABLE
INPUTS( OE )
L
L
L
H

INPUTS(LE)
H
H
L
X
INPUTS(D)
H
L
X
X
OUTPUT(Q)
H
L
Q0
Z
LOGIC DIAGRAM
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
CMOS IC
ABSOLUTE MAXIMUM RATING(unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5~7.0
V
Input Voltage
VIN
-0.5~Vcc+0.5
V
Output Voltage(active mode)
VOUT
-0.5~VCC+0.5
V
Input Clamp Current (ViN<0)
IIK
±20
mA
Output Clamp Current (VOUT<0)
IOK
±20
mA
Output Current
IOUT
±35
mA
VCC or GND Current
ICC
±70
mA
Storage Temperature
TSTG
-65 ~ +150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are
observed.

RECOMMENDED OPERATING COMDITIONS
PARAMETER
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Transition Rise or Fall Rate

SYMBOL
VCC
VIN
VOUT
TOPR
tT
MIN
4.5
0
0
-40
0
TYP
5
MAX
5.5
VCC
VCC
85
500
UNIT
V
V
V
°C
ns
ELECTRICAL CHARACTERISTICS(TA=25°С, unless otherwise specified)
PARAMETER
High-Level Input Voltage
Low-Level Output Voltage
SYMBOL
TEST CONDITIONS
VIH
VCC=4.5V~5.5V
VIL
VCC=4.5V~5.5V
VCC=4.5V, IOH=-20μA
High-Level Output Voltage
VOH
VCC=4.5V, IOH=-6mA
VCC=4.5V, IOL=20μA
Low-Level Output Voltage
VOL
VCC=4.5V, IOH=6mA
Input Leakage Current
II(LEAK)
VCC=5.5V, VIN=VCC or GND
Output OFF -State Current
IOZ
VCC=5.5V, VOUT=VCC or GND
Quiescent Supply Current
ICC
VCC=5.5V, VIN=VCC or GND, IOUT=0
VCC=5.5V,One input at 0.5V or 2.4V,
△ICC
Additional Quiescent Supply Current
other inputs at 0 or VCC
Input Capacitance
CIN
VCC=5.5V, VIN=VCC or GND
UNISONIC TECHNOLOGIES CO., LTD
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MIN
2.0
4.4
3.98
TYP MAX UNIT
1.6
V
1.2
0.8
V
4.499
V
4.3
V
0.001 0.1
V
0.17 0.26
V
±0.1 ±100
nA
±0.01 ±0.5
μA
8
μA
1.4
2.4
mA
3
10
pF
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TIMING REQUIREMENTS(Ta=25°С,unless otherwise specified)
PARAMETER
Pulse Duration, LE High
Setup Time, Data Before LE↓
Hold Time, Data After LE↓

SYMBOL
tW
tSU
tH
TEST CONDITIONS
VCC=4.5V
VCC=4.5V
VCC=4.5V
MIN
16
13
9
TYP
5
7
4
MAX
UNIT
ns
ns
ns
DYNAMIC CHARACTERISTICS(TA=25°С, CL=50pF,RL=1kΩ,unless otherwise specified)
PARAMETER
Propagation Delay From Input
(D) To Output (Q)
Propagation Delay From Input
(LE) To Output (Q)
3-State Output Enable Time From
Input ( OE ) To Output (Q)
3-State Output Disable Time From
Input ( OE ) To Output (Q)
Output transition time, (Q)

CMOS IC
SYMBOL
tPD
(tPLH/tPHL)
tPD
(tPLH/tPHL)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC=4.5V
20
35
ns
VCC=4.5V
18
35
ns
tEN
(tPZL/tPZH)
VCC=4.5V
17
30
ns
tDIS
(tPLZ/tPHZ)
VCC=4.5V
18
30
ns
tT
(tR/tF)
VCC=4.5V
5
12
ns
TYP
50
MAX
UNIT
pF
OPERATING CHARACTERISTICS
PARAMETER
Power Dissipation Capacitance
SYMBOL
CPD
TEST CONDITIONS
No load
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MIN
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
CMOS IC
TEST CIRCUIT AND WAVEFORMS
TEST
tPLH/ tPHL
tPHZ/ tPZH
tPLZ/ tPZL
K1
Open
Open
Close
K2
Open
Close
Open
Note: CL includes probe and jig capacitance.
PRR ≤1MHz, ZO = 50Ω, tR ≤6ns, tF ≤6ns
3V
Timing Input
tW
1.3V
0V
tSU
tH
3V
VI
1.3V
1.3V
0V
3V
1.3V
Data Input
1.3V
0V
3V
VI
3V
1.3V
1.3V
tPHL
tPLH
VO
0V
1.3V
tPZL
tPLZ
1.3V
VOL
0V
VCC
VO
1.3V
VO
10%
tPHZ
tPZH
VOH
1.3V
1.3V
1.3V
90%
VOL
VOH
0V
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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