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PDF U74LCX74 Data sheet ( Hoja de datos )
| Número de pieza | U74LCX74 | |
| Descripción | LOW VOLTAGE DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de U74LCX74 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
U74LCX74
LOW VOLTAGE DUAL D-TYPE
POSITIVE EDGE-TRIGGERED
FLIP-FLOP WITH 5V TOLERANT
INPUTS
CMOS IC
DESCRIPTION
The U74LCX74 is a dual D-type flip-flop with Asynchronous Clear
and Set inputs and complementary (Q, Q ) outputs. Information at the
input is transferred to the outputs on the positive edge of the clock
pulse. After the Clock Pulse input threshold voltage has been passed,
the Data input is locked out and information present will not be
transferred to the outputs until the next rising edge of the Clock Pulse
input.
Asynchronous inputs:
LOW input to SD (Set) sets Q to HIGH level
LOW input to CD (Clear) sets Q to LOW level
Clear and Set are independent of clock
Simultaneous LOW on CD and SD makes both Q and Q high
FEATURES
* 2.3V-3.6V VCC specifications provided
* 5V tolerant inputs
* 7.0 ns tPD max (VCC=3.3V), ICC=10μA (max.)
* Power down high impedance inputs and outputs
* ±24mA output drive (VCC=3.0V)
ORDERING INFORMATION
Ordering Number
U74LCX74G-P14-R
Package
TSSOP-14
Packing
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-999.B
1 page  
U74LCX74
CMOS IC
DYNAMIC CHARACTERISTICS (Input: tr, tf =3ns, f=1MHz, TA= -40°C to 85°C, RL=500Ω)
PARAMETER
SYMBOL
Conditions
VCC=2.5V±0.2V, CL=30pF
Maximum Clock Frequency
fMAX VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
Propagation Delay
CPn to Qn or Qn
tPHL/tPLH
VCC=2.5V±0.2V, CL=30pF
VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
Propagation Delay
CDn or SDn to Qn or Qn
tPHL/tPLH
VCC=2.5V±0.2V, CL=30pF
VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
VCC=2.5V±0.2V, CL=30pF
Setup Time
tS VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
VCC=2.5V±0.2V, CL=30pF
Hold Time
tH VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
VCC=2.5V±0.2V, CL=30pF
Pulse Width CP
tW VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
VCC=2.5V±0.2V, CL=30pF
Pulse Width and CDn , SDn
tW VCC=2.7V, CL=50pF
VCC=3.3V±0.3V, CL=50pF
See Fig. 1 and Fig. 2 for test circuit and waveforms.
MIN TYP MAX
150
150
150
1.5 8.4
1.5 8.0
1.5 7.0
1.5 8.4
1.5 8.0
1.5 7.0
4.0
2.5
2.5
2.0
1.5
1.5
4.0
3.3
3.3
4.0
3.6
3.3
OPERATING CHARACTERISTICS
PARAMETER
Power Dissipation Capacitance
SYMBOL
TEST CONDITIONS
MIN TYP MAX
CPD VCC=3.3V, VI=0V or VCC, f=10MHz
25
UNIT
MHZ
ns
ns
ns
ns
ns
ns
UNIT
pF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 7
QW-R502-999.B
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet U74LCX74.PDF ] | |
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