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U74LCX74 Schematic ( PDF Datasheet ) - Unisonic Technologies

Teilenummer U74LCX74
Beschreibung LOW VOLTAGE DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP
Hersteller Unisonic Technologies
Logo Unisonic Technologies Logo 




Gesamt 7 Seiten
U74LCX74 Datasheet, Funktion
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






U74LCX74 Datasheet, Funktion
U74LCX74
TEST CIRCUIT AND WAVEFORMS
From Output
CL RL
CMOS IC
TEST CIRCUIT
Note: CL includes probe and jig capacitance.
Fig. 1 Load circuitry for switching times.
VCC
2.5V±0.2V
2.7V
3.3V±0.3V
VM
VCC/2
1.5V
1.5V
CL
30pF
50pF
50pF
RL
500
500
500
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 7
QW-R502-999.B

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