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74LVX74 반도체 회로 부품 판매점

Low Voltage Dual D-Type Positive Edge-Triggered Flip-Flop



Fairchild Semiconductor 로고
Fairchild Semiconductor
74LVX74 데이터시트, 핀배열, 회로
May 1993
Revised March 1999
74LVX74
Low Voltage Dual D-Type Positive Edge-Triggered
Flip-Flop
General Description
The LVX74 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
s Input voltage level translation from 5V to 3V
s Ideal for low power/low noise 3.3V applications
s Guaranteed simultaneous switching noise level and
dynamic threshold performance
Ordering Code:
Order Number
74LVX74M
74LVX74SJ
Package Number
Package Description
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX74MTC
MTC14
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
D1, D2
CP1, CP2
CD1, CD2
SD1, SD2
Q1, Q1, Q2, Q2
Description
Data Inputs
Clock Pulse Inputs
Direct Clear Inputs
Direct Set Inputs
Outputs
© 1999 Fairchild Semiconductor Corporation DS011606.prf
www.fairchildsemi.com


74LVX74 데이터시트, 핀배열, 회로
Logic Symbols
IEEE/IEC
Truth Table
(Each Half)
Inputs
Outputs
SD CD CP
D
Q
Q
LHXXHL
HLXXLH
L LXXHH
H H
HHL
H H
L LH
H H L X Q0 Q0
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Clock Transition
Q0(Q0) = Previous Q(Q) before LOW-to-HIGH Transition of Clock
www.fairchildsemi.com
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74LVX74 flip-flop

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