ONSEMI MC74HCT273ADWR2

MC74HCT273A
Octal D Flip-Flop with
Common Clock and Reset
with LSTTL-Compatible
Inputs
High–Performance Silicon–Gate CMOS
The MC74HCT273A may be used as a level converter for
interfacing TTL or NMOS outputs to High–Speed CMOS inputs.
The HCT273A is identical in pinout to the LS273.
This device consists of eight D flip–flops with common Clock and
Reset inputs. Each flip–flop is loaded with a low–to–high transition of
the Clock input. Reset is asynchronous and active low.
•
•
•
•
•
•
•
Output Drive Capability: 10 LSTTL Loads
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 µA
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
Chip Complexity: 284 FETs or 71 Equivalent Gates
D1
D2
DATA
INPUTS
D3
D4
D5
D6
D7
CLOCK
3
2
4
5
7
6
8
9
13
12
14
15
17
MARKING
DIAGRAMS
20
PDIP–20
N SUFFIX
CASE 738
20
1
20
1
20
1
SOIC WIDE–20
DW SUFFIX
CASE 751D
HCT273A
AWLYYWW
1
A
WL
YY
WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
16
18
19
11
RESET
1
20
VCC
Q0
2
19
Q7
D0
3
18
D7
D1
4
17
D6
Q1
5
16
Q6
Q2
6
15
Q5
Q5
D2
7
14
D5
Q6
D3
8
13
D4
Q3
9
12
Q4
10
11
CLOCK
Q0
Q1
Q2
Q3
Q4
NONINVERTING
OUTPUTS
Q7
GND
RESET
MC74HCT273AN
AWLYYWW
PIN ASSIGNMENT
LOGIC DIAGRAM
D0
http://onsemi.com
PIN 20 = VCC
PIN 10 = GND
1
FUNCTION TABLE
Inputs
ORDERING INFORMATION
Clock
D
Q
L
H
H
H
H
X
X
H
L
X
X
L
H
L
No Change
No Change
L
Device
Output
Reset
MC74HCT273AN
MC74HCT273ADW
Package
Shipping
PDIP–20
1440 / Box
SOIC–WIDE
MC74HCT273ADWR2 SOIC–WIDE
38 / Rail
1000 / Reel
X = Don’t Care
Z = High Impedance
 Semiconductor Components Industries, LLC, 2000
March, 2000 – Rev. 8
1
Publication Order Number:
MC74HCT273A/D
MC74HCT273A
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MAXIMUM RATINGS*
Symbol
VCC
Parameter
DC Supply Voltage (Referenced to GND)
Value
Unit
– 0.5 to + 7.0
V
Vin
DC Input Voltage (Referenced to GND)
– 0.5 to VCC + 0.5
V
Vout
DC Output Voltage (Referenced to GND)
– 0.5 to VCC + 0.5
V
DC Input Current, per Pin
± 20
mA
Iout
DC Output Current, per Pin
± 25
mA
ICC
DC Supply Current, VCC and GND Pins
± 50
mA
PD
Power Dissipation in Still Air
750
500
mW
Tstg
Storage Temperature
– 65 to + 150
_C
Iin
TL
Plastic DIP†
SOIC Package†
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance circuit. For proper operation, Vin and
Vout should be constrained to the
range GND (Vin or Vout) VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
v
v
_C
Lead Temperature, 1 mm from Case for 10 Seconds
(SOIC or Plastic DIP)
260
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C
SOIC Package: – 7 mW/_C from 65_ to 125_C
For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book (DL129/D).
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RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Vin, Vout
Parameter
Min
Max
Unit
4.5
5.5
V
0
VCC
V
– 55
+ 125
_C
0
500
ns
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
TA
Operating Temperature, All Package Types
tr, tf
Input Rise and Fall Time (Figure 1)
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
Symbol
Parameter
Test Conditions
VCC
V
– 55 to
25_C
85_C
125_C
Unit
VIH
Minimum High–Level Input
Voltage
Vout = 0.1 V or VCC – 0.1 V
|Iout|
20 µA
4.5
5.5
2.0
2.0
2.0
2.0
2.0
2.0
V
VIL
Maximum Low–Level Input
Voltage
Vout = 0.1 V or VCC – 0.1 V
|Iout|
20 µA
4.5
5.5
0.8
0.8
0.8
0.8
0.8
0.8
V
Minimum High–Level Output
Voltage
Vin = VIH or VIL
|Iout|
20 µA
4.5
5.5
4.4
5.4
4.4
5.4
4.4
5.4
V
Vin = VIH or VIL
|Iout|
4.0 mA
4.5
3.98
3.84
3.7
Vin = VIH or VIL
|Iout|
20 µA
4.5
5.5
0.1
0.1
0.1
0.1
0.1
0.1
Vin = VIH or VIL
|Iout|
4.0 mA
4.5
0.26
0.33
0.4
Maximum Input Leakage
Current
Vin = VCC or GND
5.5
± 0.1
± 1.0
± 1.0
µA
ICC
Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
Iout = 0 µA
5.5
4.0
40
160
µA
∆ICC
Additional Quiescent Supply
Current
Vin = 2.4 V, Any One Input
Vin = VCC or GND,
GND Other In
Inputs
uts
lout = 0 µA
VOH
VOL
Iin
Maximum Low–Level Output
Voltage
5.5
≥ –55_C
25_C to 125_C
2.9
2.4
V
mA
NOTE: Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book
(DL129/D).
http://onsemi.com
2
MC74HCT273A
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AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns)
Guaranteed Limit
Symbol
Parameter
Fig.
– 55 to
25_C
85_C
125_C
Unit
fmax
Maximum Clock Frequency (50% Duty Cycle)
1, 4
30
24
20
MHz
tPLH,
tPHL
Maximum Propagation Delay, Clock to Q
1, 4
25
28
35
ns
tPHL
Maximum Propagation Delay, Reset to Q
2, 4
25
28
35
ns
tTLH,
tTHL
Maximum Output Transition Time, Any Output
1, 5
18
20
22
ns
NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the ON
Semiconductor High–Speed CMOS Data Book (DL129/D).
Typical @ 25°C, VCC = 5.0 V
CPD
Power Dissipation Capacitance (Per Gate)*
pF
30
* Used to determine the no–load dynamic power consumption: P D = C PD V CC 2 f + I CC V CC . For load considerations, see Chapter 2 of the
ON Semiconductor High–Speed CMOS Data Book (DL129/D).
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TIMING REQUIREMENTS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns)
Guaranteed Limit
– 55 to 25_C
Symbol
Parameter
Fig.
Min
Max
85_C
Min
Max
125_C
Min
Max
Unit
tsu
Minimum Setup Time, Data to Clock
3
10
12
15
ns
th
Minimum Hold Time, Clock to Data
3
3.0
3.0
3.0
ns
Minimum Recovery Time, Set or Reset Inactive to Clock
2
5.0
5.0
5.0
ns
tw
Minimum Pulse Width, Clock
1
12
15
18
ns
tw
Minimum Pulse Width, Set or Reset
2
12
15
18
ns
tr, tf
Maximum Input Rise and Fall Times
1
trec
http://onsemi.com
3
500
500
500
ns
MC74HCT273A
SWITCHING WAVEFORMS
tr
CLOCK
tw
tf
3.0 V
3.0 V
2.7 V
1.3 V
0.3 V
tw
GND
GND
tPHL
1/fmax
1.3 V
Q
tPLH
Q
1.3 V
RESET
tPHL
trec
90%
1.3 V
10%
3.0 V
1.3 V
CLOCK
tTLH
GND
tTHL
Figure 1.
Figure 2.
TEST POINT
VALID
OUTPUT
3.0 V
DATA
DEVICE
UNDER
TEST
1.3 V
GND
tsu
th
CL*
3.0 V
CLOCK
1.3 V
GND
*Includes all probe and jig capacitance
Figure 3.
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
C
D0
3
DR
C
D1
4
DR
C
D2
7
DR
C
DATA
INPUTS
D3
8
DR
C
D4
13
DR
C
D5
14
DR
C
D6
D7
CLOCK
RESET
17
DR
C
18
DR
Q
Q
Q
Q
5
6
9
Q0
Q1
Q2
Q3
NONINVERTING
OUTPUTS
Q
Q
Q
Q
11
1
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4
2
12
15
16
19
Q4
Q5
Q6
Q7
MC74HCT273A
PACKAGE DIMENSIONS
PDIP–20
N SUFFIX
PLASTIC DIP PACKAGE
CASE 738–03
ISSUE E
–A–
20
11
1
10
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
B
L
C
–T–
K
SEATING
PLANE
M
N
E
G
F
J
D
20 PL
0.25 (0.010)
20 PL
0.25 (0.010)
M
T A
M
T B
M
M
DIM
A
B
C
D
E
F
G
J
K
L
M
N
INCHES
MIN
MAX
1.010
1.070
0.240
0.260
0.150
0.180
0.015
0.022
0.050 BSC
0.050
0.070
0.100 BSC
0.008
0.015
0.110
0.140
0.300 BSC
0_
15 _
0.020
0.040
MILLIMETERS
MIN
MAX
25.66
27.17
6.10
6.60
3.81
4.57
0.39
0.55
1.27 BSC
1.27
1.77
2.54 BSC
0.21
0.38
2.80
3.55
7.62 BSC
0_
15_
0.51
1.01
SO–20
DW SUFFIX
CASE 751D–05
ISSUE F
q
A
20
X 45 _
M
E
h
0.25
1
10
20X
B
B
0.25
M
T A
S
B
S
A
L
H
10X
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE PROTRUSION SHALL
BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT
MAXIMUM MATERIAL CONDITION.
11
B
M
D
18X
e
A1
SEATING
PLANE
DIM
A
A1
B
C
D
E
e
H
h
L
q
C
T
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5
MILLIMETERS
MIN
MAX
2.35
2.65
0.10
0.25
0.35
0.49
0.23
0.32
12.65
12.95
7.40
7.60
1.27 BSC
10.05
10.55
0.25
0.75
0.50
0.90
0_
7_
MC74HCT273A
Notes
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6
MC74HCT273A
Notes
http://onsemi.com
7
MC74HCT273A
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
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alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
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For additional information, please contact your local
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http://onsemi.com
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