74LVX273MTC PDF даташит
Спецификация 74LVX273MTC изготовлена «Fairchild Semiconductor» и имеет функцию, называемую «Low Voltage Octal D-Type Flip-Flop». |
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Детали детали
Номер произв | 74LVX273MTC |
Описание | Low Voltage Octal D-Type Flip-Flop |
Производители | Fairchild Semiconductor |
логотип |
6 Pages
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June 1993
Revised March 1999
74LVX273
Low Voltage Octal D-Type Flip-Flop
General Description
The LVX273 has eight edge-triggered D-type flip-flops with
individual D inputs and Q outputs. The common buffered
Clock (CP) and Master Reset (MR) input load and reset
(clear) all flip-flops simultaneously.
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-flop’s 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.
Features
s Input voltage 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 Package Number
Package Description
74LVX273M
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74LVX273SJ
M20D
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.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
D0–D7
MR
CP
Q0–Q7
Description
Data Inputs
Master Reset
Clock Pulse Input
Data Outputs
© 1999 Fairchild Semiconductor Corporation DS011614.prf
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Truth Table
Operating Mode
Reset (Clear)
Load ’1’
Load ’0’
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Transition
Inputs
MR CP
Dn
LXX
H H
H L
Outputs
Qn
L
H
L
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
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Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC +0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
(ICC or IGND)
Storage Temperature (TSTG)
Power Dissipation
−0.5V to +7.0V
−20 mA
−0.5V to 7V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
±25 mA
±75 mA
−65°C to +150°C
180 mW
Recommended Operating
Conditions (Note 2)
Supply Voltage (VCC)
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
Input Rise and Fall Time (∆t/∆V)
2.0V to 3.6V
0V to 5.5V
0V to VCC
−40°C to +85°C
0 ns/V to 100 ns/V
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
Parameter
VIH HIGH Level
Input Voltage
VIL LOW Level
Input Voltage
VOH HIGH Level
Output Voltage
VOL LOW Level
Output Voltage
IOZ 3-STATE Output
Off-State Current
IIN Input Leakage Current
ICC Quiescent Supply Current
VCC
2.0
3.0
3.6
2.0
3.0
3.6
2.0
3.0
3.0
2.0
3.0
3.0
3.6
3.6
3.6
Min
1.5
2.0
2.4
1.9
2.9
2.58
TA = +25°C
Typ Max
0.5
0.8
0.8
2.0
3.0
0.0 0.1
0.0 0.1
0.36
±0.25
±0.1
4.0
TA = −40°C to +85°C
Min Max
1.5
2.0
2.4
0.5
0.8
0.8
1.9
2.9
2.48
0.1
0.1
0.44
±2.5
±1.0
40.0
Units
V
V
V
V
µA
µA
µA
Conditions
VIN = VIH or VIL IOH = −50 µA
IOH = −50 µA
IOH = −4 mA
VIN = VIH or VIL IOL = 50 µA
IOL = 50 µA
IOL = 4 mA
VIN = VIH or VIL
VOUT = VCC or GND
VIN = 5.5V or GND
VIN = VCC or GND
Noise Characteristics (Note 3)
Symbol
Parameter
VOLP
Quiet Output Maximum Dynamic VOL
VOLV
Quiet Output Minimum Dynamic VOL
VIHD
Minimum HIGH Level Dynamic Input Voltage
VILD Maximum LOW Level Dynamic Input Voltage
Note 3: Input tr = tf = 3ns
VCC
TA = 25°C
Units
(V) Typ Limit
3.3 0.5 0.8
V
3.3
−0.5
−0.8
V
3.3 2.0 V
3.3 0.8 V
CL (pF)
50
50
50
50
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74LVX273MTC | Low Voltage Octal D-Type Flip-Flop | Fairchild Semiconductor |
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