Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC574
CMOS IC
OCTAL EDGE-TRIGGERED
D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS

DESCRIPTION
The U74LVC574 is a octal edge-triggered D-type flip-flop with
3-state outputs, and it has 8 channels.

FEATURES
* Operate from 1.65V to 3.6V
* Max tpd of 7ns at 3.3 V
* Typical VOL< 0.8V at VCC=3.3V, Ta=25°C
* Typical VOH> 2V at VCC=3.3V, Ta=25°C
* Power off disables outputs, permitting live insertion

ORDERING INFORMATION
Ordering Number
U74LVC574G-P20-R
U74LVC574G-R20-R
U74LVC574G-S20-R

Package
TSSOP-20
SSOP-20
SOP-20
Packing
Tape Reel
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
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U74LVC574

PIN CONFIGURATION

FUNCTION TABLE
INPUTS(OE)
INPUTS(CLK)
L
↑
L
↑
L
L
H
X
Note: H: HIGH voltage level; L: LOW voltage level.

LOGIC SYMBOL

LOGIC DIAGRAM
CMOS IC
INPUTS(D)
H
L
X
X
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OUTPUT(Q)
H
L
Q0
Z
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CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°С, unless otherwise specified)
PARAMETER
SYMBOL
VCC
VIN
RATINGS
UNIT
-0.5 ~ 6.5
V
-0.5 ~ 6.5
V
-0.5 ~ 6.5 (Note 2)
Output Voltage
VOUT
V
-0.5 ~ VCC +0.5 (Note 3)
VCC or GND Current
ICC
±100
mA
Output Current
IOUT
±50
mA
Input Clamp Current
IIK
-50
mA
Output Clamp Current
IOK
-50
mA
Operating Temperature
TOPR
-40 ~ + 85
°C
Storage Temperature
TSTG
-65 ~ + 150
°C
Note: 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. Voltage range applied to any output in the high-impedance or power-off state.
3. Voltage range applied to any output in the high or low state, and VCC is provided in the recommended
operating conditions table.
Supply Voltage
Input Voltage

RECOMMENDED OPERATING CONDITIONS (TA=25°С, unless otherwise specified)
PARAMETER
SYMBOL
Supply Voltage
VCC
High-level Input Voltage
VIH
Low-level Input Voltage
VIL
Input Voltage
VIN
Output Voltage
VOUT
High-level Output Current
IOH
Low-level Output Current
IOL
Input Rise or Fall Times
tR, tF

TEST CONDITIONS
Operating
Data retention only
VCC=1.65V to 1.95V
VCC=2.3V to 2.7V
VCC=2.7V to 3.6V
VCC=1.65V to 1.95V
VCC=2.3V to 2.7V
VCC=2.7V to 3.6V
MIN
1.65
1.5
0.65×VCC
1.7
2
TYP
UNIT
V
V
0.35×VCC
0.7
0.8
5.5
VCC
5.5
-4
-8
-12
-24
4
8
12
24
6
0
0
0
High or low state
3 state
VCC=1.65V
VCC=2.3V
VCC=2.7V
VCC=3V
VCC=1.65V
VCC=2.3V
VCC=2.7V
VCC=3V
MAX
3.6
0
V
V
V
mA
mA
ns/V
THERMAL CHARACTERISTICS
PARAMETER
Junction to Ambient
SYMBOL
SOP-20
SSOP-20/TSSOP-20
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θJA
RATINGS
100
115
UNIT
°C/W
°C/W
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CMOS IC
ELECTRICAL CHARACTERISTICS
PARAMETER
Output Voltage High-Level
Output Voltage Low-Level
Input Leakage Current
Power OFF Leakage Current
Disable Output Leakage Current
Quiescent Supply Current
Additional Quiescent Supply
Current
SYMBOL
VOH
VOL
II(LEAK)
IOFF
IOZ
IQ
 IQ
TEST CONDITIONS
VCC=1.65~3.6V, IOH=-100μA
VCC=1.65V, IOH=-4mA
VCC=2.3V, IOH=-8mA
VCC=2.7V, IOH=-12mA
VCC=3V, IOH=-12mA
VCC=3V, IOH=-24mA
VCC=1.65~3.6V, IOL=100μA
VCC=1.65V, IOL=4mA
VCC=2.3V, IOL=8mA
VCC=2.7V, IOL=12mA
VCC=3V, IOL=24mA
VCC=3.6V, VIN=0 to 5.5V
VCC=0V, VIN or VOUT=5.5V
VCC=3.6V, VOUT=0 to 5.5V
VCC=3.6V, VIN=VCC or GND,
IOUT=0
VCC=3.6V, 3.6V≤VIN≤5.5V ,
IOUT=0(Note 2)
VCC=2.7~3.6V, One input at
VCC-0.6V, Other inputs at VCC or
GND
VCC=3.3V, VIN=VCC or GND
VCC=3.3V, VOUT=VCC or GND
MIN
UNIT
V
0.2
0.45
0.7
0.4
0.55
±5
±10
±10
μA
μA
μA
10
μA
10
μA
500
μA
4
5.5
V
pF
pF
SWITCHING CHARACTERISTICS
PARAMETER
Propagation delay from input
(CLK) to output (Q)
Output enable time from input
( OE ) to output (Q)
Output disable time from input
( OE ) to output (Q)
Maximum Clock Frequency
SYMBOL
tPLH/tPHL
tPZL/tPZH
tPLZ/tPHZ
fMAX
Pulse Width
tW
Setup Time
tSU
Hold Time
tH

MAX
VCC-0.2
1.2
1.7
2.2
2.4
2.2
Input Capacitance
CI
Output Capacitance
CO
Note: 1. VCC=3.3V, TA=25°C
2. This applies in the disabled state only.

TYP
(Note 1)
TEST CONDITIONS
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
MIN
VCC=3.3V±0.3V
1.5
TYP
2.2
MAX
8
7
8.5
7.5
VCC=2.7V
7
VCC=3.3V±0.3V
1.7
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
VCC=2.7V
VCC=3.3V±0.3V
150
150
3.3
3.3
2
2
1.5
1.5
6.4
UNIT
ns
ns
ns
MHz
ns
ns
ns
OPERATING CHARACTERISTICS(Ta=25°С)
PARAMETER
Power Dissipation Capacitance
SYMBOL
Cpd
TEST CONDITIONS
OE=0, f=10MHz, VCC=3.3V±0.3V
TYP
43
OE=1, f=10MHz, VCC=3.3V±0.3V
15
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MIN
MAX
UNIT
pF
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U74LVC574

CMOS IC
TEST CIRCUIT AND WAVEFORMS
VCC
VIN
1.8V±0.15V
2.5V±0.2V
2.7V
3.3V±0.3V
VCC
VCC
2.7V
2.7V
tPLZ/tPZL
(VLOAD)
2×VCC
2×VCC
6V
6V
tPLH/tPHL
tPHZ/tPZH
CL
OPEN
OPEN
OPEN
OPEN
OPEN
GND
GND
GND
30pF
30pF
50pF
50pF
RL
(Note 1)
1kΩ
500Ω
500Ω
500Ω
△V
0.15V
0.15V
0.3V
0.3V
Note: 1. CL includes probe and jig capacitance.
Note: 2. PRR≤10MHz, ZO=50Ω, tTHL≤2ns, tTLH≤2ns.
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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