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U74LVC1G74 데이터시트 PDF




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부품번호 U74LVC1G74 기능
기능 SINGLE POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP
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U74LVC1G74 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
U74LVC1G74
SINGLE
POSITIVE-EDGE-TRIGGERED
D-TYPE FLIP-FLOP WITH
CLEAR AND PRESET
DESCRIPTION
This single positive-edge-triggered D-type flip-flop is designed for
1.65V to 5.5V VCC operation.
A low level at the preset(PRE ) or clear ( CLR ) input sets or
resets the outputs, regardless of the levels of the other inputs .when
PRE and CLR are inactive(high),data at the data (D) input meeting
the setup time requirements is transferred to the outputs on the
positive-going edge of the clock pulse. Clock triggering occurs at a
voltage level and is not related directly to the rise time of the clock
pulse. Following the hold-time interval, data at the D input can be
changed without affecting the levels at the outputs.
The device is fully specified for partial-power-down applications
using Ioff. The Ioff circuitry disables the outputs, preventing damaging
current backflow through the device when it is powered down.
FEATURES
* Supports 5-V VCC operation
* Inputs accept voltages to 5.5V
* Max tpd of 5.9ns at 3.3V
* Typical VOLP<0.8V at VCC=3.3V, TA=25°C
* Typical VOHV>2V at VCC=3.3V, TA=25°C
* Low Power Consumption, ICC=10μA (Max.)
* Ioff Supports Live Insertion, Partial Power Down Mode, and Back
Drive Protection
ORDERING INFORMATION
Ordering Number
U74LVC1G74G-S08-R
Package
SOP-8
CMOS IC
SOP-8
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-989.B




U74LVC1G74 pdf, 반도체, 판매, 대치품
U74LVC1G74
CMOS IC
STATIC CHARACTERISTICS
(All typical values are at VCC=3.3V, TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
VCC=1.65V to 5.5V, IOH=-100μA VCC-0.1
VCC=1.65V, IOH=-4mA
1.2
High-Level Output Voltage
VOH
VCC=2.3V, IOH=-8mA
VCC=3V
IOH=-16mA
IOH=-24mA
1.9
2.4
2.3
VCC=4.5V, IOH=-32mA
3.8
VCC=1.65V to 5.5V, IOL=100uA
VCC=1.65V, IOL=4mA
Low-Level Output Voltage
VOL
VCC=2.3V, IOL=8mA
VCC=3V
IOL=16mA
IOL=24mA
VCC=4.5V, IOH=32mA
Input Leakage Current
Power OFF Leakage Current
II(LEAK)
Ioff
VCC =0V ~ 5.5V, VIN=5.5V or GND
VCC =0V, VIN or VOUT=5.5V
Quiescent Supply Current
Additional Quiescent Supply
Current Per Input Pin
IQ
VCC = 1.65V to 5.5V,
VIN= 5.5V or GND IOUT=0
VCC=3V to 5.5V,
IQ One input at VCC-0.6V,
Other inputs at VCC or GND
Input Capacitance
CIN VCC =3.3V, VIN=VCC or GND
TYP
5
TIMING REQUIREMENTS
PARAMETER
Clock frequency
Pulse duration
Setup time before CLK
from Data to PRE or CLR
inactive
Hold time, data after CLK
SYMBOL
fclock
tw
TEST CONDITIONS
VCC=1.8V
VCC=2.5V
VCC=3.3V
VCC=5.0V
VCC=1.8V
CLK
PRE or CLR Low
CLK
VCC=2.5V PRE or CLR Low
CLK
VCC=3.3V PRE or CLR Low
VCC=5.0V PRE or CLR Low
CLK
VCC=1.8V PRE or CLR Low
CLK
tsu
VCC=2.5V PRE or CLR Low
CLK
VCC=3.3V PRE or CLR Low
CLK
VCC=5.0V PRE or CLR Low
VCC=1.8V
th
VCC=2.5V
VCC=3.3V
VCC=5.0V
MIN TYP
6.2
6.2
2.7
2.7
2.7
2.7
2
2
2.9
1.9
1.7
1.4
1.3
1.2
1.1
1.0
0
0.3
1.2
0.5
MAX UNIT
V
0.1
0.45
0.3
0.4
V
0.55
0.55
±5 μA
±10 μA
10 μA
500 μA
pF
MAX
80
175
175
200
UNIT
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 7
QW-R502-989.B

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U74LVC1G74 전자부품, 판매, 대치품
U74LVC1G74
TEST CIRCUIT AND WAVEFORMS(Cont.)
CMOS IC
Note: All input pulses are supplied by generators having the following characteristics: PRR10MHz, ZO=50
Fig. 2 Propagation delay from input to output and input voltage waveforms.
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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QW-R502-989.B

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