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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.74LVX273 Low Voltage Octal D-Type Flip-Flop
June 1993
Revised April 2005
74LVX273
Low Voltage Octal D-Type Flip-Flop
General Description Features
The LVX273 has eight edge-triggered D-type flip-flops with Input voltage translation from 5V to 3V
individual D inputs and Q outputs. The common buffered
Ideal for low power/low noise 3.3V applications
Clock (CP) and Master Reset (MR) input load and reset
Guaranteed simultaneous switching noise level and
(clear) all flip-flops simultaneously.
dynamic threshold performance
The register is fully edge-triggered. The state of each D
input, one setup time before the LOW-to-HIGH clock transi-
tion, is transferred to the corresponding flip-flops Q output.
All outputs will be forced LOW independently of Clock or
Data inputs by a LOW voltage level on the MR input. The
device is useful for applications where the true output only
is required and the Clock and Master Reset are common to
all storage elements. The inputs tolerate up to 7V allowing
interface of 5V systems to 3V systems.
Ordering Code:
Order Number Package Number Package Description
74LVX273M M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVX273SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX273MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending letter suffix X to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Logic Symbols Connection Diagram
IEEE/IEC
Truth Table
Operating Mode Inputs Outputs
Pin Descriptions
D Q
MR CP
n n
Pin Names Description
Reset (Clear) L X X L
D D Data Inputs
0 7
Load '1' H HH
MR Master Reset
Load '0' H LL
CP Clock Pulse Input
H HIGH Voltage Level X Immaterial
Q Q Data Outputs
L LOW Voltage Level LOW-to-HIGH Transition
0 7
2005 Fairchild Semiconductor Corporation DS011614 www.fairchildsemi.com