Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74AHC574
CMOS IC
OCTAL EDGE-TRIGGERED
D-TYPE FLIP-FLOPS WITH
3-STATE OUTPUTS
„
DESCRIPTION
The U74AHC574 is a octal edge-triggered D-type flip-flops
with 3-state outputs, and it has 8 channels.
When the OE input is low, on the positive transition of the
clock (CLK) input, the Q outputs are set to the logic levels of the
data (D) inputs.
When the OE input is high, the outputs are in the
high-impedance.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pull-up resistor; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.
„
TSSOP-20
FEATURES
* Operate from 2V to 5.5V
* Max tpd of 13.2 ns at at VCC=3.3V, CL=15pF
* Max ICC of 4uA
* Typical VOL< 0.36V at VCC=4.5V, IO=8mA, TA=25°C
* Typical VOH> 3.94V at VCC=4.5V, IO =-8mA, TA=25°C
„
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74AHC574L-P20-R
U74AHC574G-P20-R
U74AHC574L-P20-T
U74AHC574G-P20-T
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Copyright © 2012 Unisonic Technologies Co., Ltd
Package
Packing
TSSOP-20
TSSOP-20
Tape Reel
Tube
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U74AHC574
„
„
CMOS IC
PIN CONFIGURATION
OE
1D
1
20
VCC
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
CLK
FUNCTION TABLE
INPUTS(OE)
L
L
L
H
„
LOGIC SYMBOL
„
LOGIC DIAGRAM
INPUTS(CLK)
↑
↑
H or L
X
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INPUTS(D)
H
L
X
X
OUTPUT(Q)
H
L
Q0
Z
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CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
VCC
-0.5 ~ 7
V
VIN
-0.5 ~ 7
V
VOUT
-0.5 ~ VCC +0.5
V
VCC or GND Current
ICC
±75
mA
Output Current
IOUT
±25
mA
Input Clamp Current
IIK
-20
mA
Output Clamp Current
IOK
±20
mA
Operating Temperature
TOPR
-40 ~ + 85
°C
Storage Temperature
TSTG
-65 ~ + 150
°C
Note: 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.
Supply Voltage
Input Voltage
Output Voltage
„
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
SYMBOL
VCC
High-level Input Voltage
VIH
Low-level Input Voltage
VIL
Input Voltage
Output Voltage
VIN
VOUT
High-level Output Current
IOH
Low-level Output Current
IOL
Input Rise or Fall Times
tR, tF
„
TEST CONDITIONS
VCC=2V
VCC=3V
VCC=5.5V
VCC=2V
VCC=3V
VCC=5.5V
High or low state
VCC=2V
VCC=3.3V ± 0.3V
VCC=5V± 0.5V
VCC=2V
VCC=3.3V±0.3V
VCC=5V±0.5V
VCC=3.3V±0.3V
VCC=5V±0.5V
MIN
2
1.5
2.1
3.85
TYP
MAX
5.5
UNIT
V
V
0.5
0.9
1.65
VCC
VCC
-50
-4
-8
50
4
8
100
20
0
0
V
V
V
μA
mA
μA
mA
ns
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Output Voltage High-Level
VOH
Output Voltage Low-Level
VOL
Input Leakage Current
3-state Leakage Current
Quiescent Supply Current
Input Capacitance
Output Capacitance
II(LEAK)
IOZ
ICC
CI
CO
TEST CONDITIONS
VCC=2V, IOH=-50μA
VCC=3V, IOH=-50μA
VCC=4.5V, IOH=-50μA
VCC=3V, IOH=-4mA
VCC=4.5V, IOH=-8mA
VCC=2V, IOH=50μA
VCC=3V, IOH=50μA
VCC=4.5V, IOH=50μA
VCC=3V, IOH=4mA
VCC=4.5V, IOH=8mA
VCC= 0 ~ 5.5V, VIN=5.5V or GND
VCC=5.5V, VOUT= VCC or GND
VCC=5.5V, VIN=VCC or GND, IOUT=0
VCC=5V, VIN=VCC or GND
VCC=5V, VOUT=VCC or GND
UNISONIC TECHNOLOGIES CO., LTD
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MIN
1.9
2.9
4.4
2.58
3.94
TYP
2
3
4.5
3
3
MAX
UNIT
V
0.1
0.1
0.1
0.36
0.36
±0.1
±0.25
4
10
V
μA
μA
μA
pF
pF
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CMOS IC
SWITCHING CHARACTERISTICS (See TEST CIRCUIT AND WAVEFORMS)
PARAMETER
SYMBOL
From CLK to Q
tPLH/tPHL
From OE to Q
tPZL/tPZH
From OE to Q
tPLZ/tPHZ
Maximum Clock
Frequency
fMAX
Pulse Width
tW
Setup Time
tSU
Hold Time
tH
„
TEST CONDITIONS
CL=15pF
VCC=3.3V±0.3V
CL=50pF
CL=15pF
VCC=5V±0.5V
CL=50pF
CL=15pF
VCC=3.3V±0.3 V
CL=50pF
CL=15pF
VCC=5V±0.5V
CL=50pF
CL=15pF
VCC=3.3V± 0.3V
CL=50pF
CL=15pF
VCC=5V±0.5V
CL=50pF
CL=15pF
VCC=3.3V± 0.3V
CL=50pF
CL=15pF
VCC=5V±0.5V
CL=50pF
VCC=3.3V± 0.3V
VCC=5V±0.5V
VCC=3.3V± 0.3V
VCC=5V±0.5V
VCC=3.3V± 0.3V
VCC=5V±0.5V
MIN
80
50
130
85
5
5
3.5
3
1.5
1.5
TYP
8.5
11
5.6
7.1
8.2
10.7
5.9
7.4
8.5
11
5.5
7.1
125
75
180
115
MAX
13.2
16.7
8.6
10.6
12.8
16.3
9
11
13
15
9
10.1
UNIT
ns
ns
ns
MHz
ns
ns
ns
OPERATING CHARACTERISTICS(TA=25°C, unless otherwise specified)
PARAMETER
Power Dissipation Capacitance
SYMBOL
TEST CONDITIONS
Cpd No load, VCC=5V, f=1MHz
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MIN
TYP
28
MAX
UNIT
pF
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CMOS IC
TEST CIRCUIT AND WAVEFORMS
VCC
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
VM
VLOAD
Input
VIN
tr, tf
3.3V±0.3V
VCC
≤3ns
VCC/2
VCC
5V±0.5V
VCC
≤3ns
VCC/2
VCC
Timing
Input
CL
15pF
50pF
15pF
50pF
RL
VΔ
1kΩ
0.3V
1kΩ
0.5V
VM
t SU
tH
VIN
Data
Input
VM
VM
0V
SETUP AND HOLD TIMES
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„
CMOS IC
TEST CIRCUIT AND WAVEFORMS(Cont.)
Note: 1. CL includes probe and jig capacitance.
2. PRR ≤1MHz, ZO = 50Ω, tR ≤3ns, tF ≤3ns.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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U74AHC574
CMOS IC
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.
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