U74AHC574 [UTC]
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS; 八路边沿触发D型触发器具有三态输出
| 型号： | U74AHC574 |
| 厂家： | 
Unisonic Technologies |
| 描述： | OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS |
| 文件： | 总7页 (文件大小：240K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
TSSOP-20
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.
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
Package
Packing
Halogen Free
U74AHC574L-P20-R
U74AHC574L-P20-T
U74AHC574G-P20-R
U74AHC574G-P20-T
TSSOP-20
TSSOP-20
Tape Reel
Tube
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Copyright © 2012 Unisonic Technologies Co., Ltd
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U74AHC574
CMOS IC
PIN CONFIGURATION
VCC
1
2
3
4
5
20
OE
1D
19 1Q
18 2Q
17 3Q
2D
3D
4D
4Q
15 5Q
6Q
16
5D
6D
6
7
8
14
7D
13 7Q
12 8Q
8D
9
CLK
11
GND
10
FUNCTION TABLE
INPUTS(OE)
INPUTS(CLK)
INPUTS(D)
OUTPUT(Q)
L
L
↑
↑
H
L
H
L
L
H or L
X
X
X
Q0
Z
H
LOGIC SYMBOL
LOGIC DIAGRAM
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U74AHC574
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VCC
RATINGS
-0.5 ~ 7
-0.5 ~ 7
-0.5 ~ VCC +0.5
±75
UNIT
V
Supply Voltage
Input Voltage
Output Voltage
VIN
V
VOUT
ICC
V
VCC or GND Current
Output Current
mA
mA
mA
mA
°C
IOUT
IIK
±25
Input Clamp Current
Output Clamp Current
Operating Temperature
Storage Temperature
-20
IOK
±20
TOPR
TSTG
-40 ~ + 85
-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.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
VCC
TEST CONDITIONS
MIN
2
TYP
MAX
5.5
UNIT
V
Supply Voltage
V
CC=2V
1.5
2.1
3.85
High-level Input Voltage
VIH
VCC=3V
V
V
VCC=5.5V
V
CC=2V
0.5
0.9
1.65
VCC
VCC
-50
-4
Low-level Input Voltage
VIL
VIN
VCC=3V
VCC=5.5V
Input Voltage
0
0
V
V
Output Voltage
VOUT High or low state
VCC=2V
μA
High-level Output Current
IOH
VCC=3.3V ± 0.3V
VCC=5V± 0.5V
VCC=2V
mA
μA
-8
50
Low-level Output Current
Input Rise or Fall Times
IOL
VCC=3.3V±0.3V
VCC=5V±0.5V
VCC=3.3V±0.3V
VCC=5V±0.5V
4
mA
8
100
20
tR, tF
ns
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
CC=2V, IOH=-50μA
MIN
1.9
TYP
2
MAX UNIT
V
VCC=3V, IOH=-50μA
2.9
3
Output Voltage High-Level
Output Voltage Low-Level
VOH
VCC=4.5V, IOH=-50μA
VCC=3V, IOH=-4mA
4.4
4.5
V
2.58
3.94
VCC=4.5V, IOH=-8mA
VCC=2V, IOH=50μA
0.1
0.1
VCC=3V, IOH=50μA
VOL
VCC=4.5V, IOH=50μA
0.1
0.36
0.36
±0.1
±0.25
4
V
VCC=3V, IOH=4mA
VCC=4.5V, IOH=8mA
Input Leakage Current
3-state Leakage Current
Quiescent Supply Current
Input Capacitance
II(LEAK)
IOZ
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
μA
μA
μA
pF
pF
ICC
CI
3
3
10
Output Capacitance
CO
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U74AHC574
CMOS IC
SWITCHING CHARACTERISTICS (See TEST CIRCUIT AND WAVEFORMS)
PARAMETER
SYMBOL
TEST CONDITIONS
CL=15pF
MIN
TYP
8.5
11
MAX
UNIT
ns
13.2
16.7
8.6
10.6
12.8
16.3
9
V
CC=3.3V±0.3V
CL=50pF
CL=15pF
CL=50pF
CL=15pF
CL=50pF
CL=15pF
CL=50pF
CL=15pF
CL=50pF
CL=15pF
CL=50pF
CL=15pF
CL=50pF
CL=15pF
CL=50pF
From CLK to Q
From OE to Q
From OE to Q
tPLH/tPHL
5.6
7.1
8.2
10.7
5.9
7.4
8.5
11
VCC=5V±0.5V
VCC=3.3V±0.3 V
VCC=5V±0.5V
tPZL/tPZH
tPLZ/tPHZ
fMAX
ns
ns
11
13
V
CC=3.3V± 0.3V
15
5.5
7.1
125
75
9
VCC=5V±0.5V
VCC=3.3V± 0.3V
VCC=5V±0.5V
10.1
80
50
130
85
5
Maximum Clock
Frequency
MHz
180
115
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
Pulse Width
Setup Time
Hold Time
tW
tSU
tH
ns
ns
ns
5
3.5
3
1.5
1.5
OPERATING CHARACTERISTICS(TA=25°C, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN
Power Dissipation Capacitance Cpd No load, VCC=5V, f=1MHz
TYP
28
MAX
UNIT
pF
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U74AHC574
CMOS IC
TEST CIRCUIT AND WAVEFORMS
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
Input
VCC
VM
VLOAD
VCC
CL
RL
VΔ
VIN
tr, tf
15pF
50pF
15pF
50pF
3.3V±0.3V
5V±0.5V
VCC
≤3ns
VCC/2
VCC/2
1kΩ
1kΩ
0.3V
0.5V
VCC
≤3ns
VCC
Timing
Input
VM
tSU
tH
V
IN
Data
Input
VM
VM
0V
SETUP AND HOLD TIMES
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U74AHC574
CMOS IC
TEST CIRCUIT AND WAVEFORMS(Cont.)
Note: 1. CL includes probe and jig capacitance.
2. PRR ≤1MHz, ZO = 50Ω, tR ≤3ns, tF ≤3ns.
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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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