MOTOROLA MC74HCT273ADW, MC74HCT273ADWR2, MC74HCT273AH, MC74HCT273AN, MC74HCT273ADTR2 Datasheet
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SEMICONDUCTOR TECHNICAL DATA
1
REV 7
Motorola, Inc. 1997
2/97
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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
LOGIC DIAGRAM
DATA
INPUTS
D0
11
CLOCK
D1
D2
D3
D4
D5
D6
D7
18
17
14
13
8
7
4
3
1
RESET
19
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
16
15
12
9
6
5
2
PIN 20 = V
CC
PIN 10 = GND
NONINVERTING
OUTPUTS
PIN ASSIGNMENT
Q2
D1
D0
Q0
RESET
GND
Q3
D3
D2
Q1 5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
Q6
D6
D7
Q7
V
CC
CLOCK
Q4
D4
D5
Q5
FUNCTION TABLE
Inputs Output
Reset Clock D Q
LXX L
HHH
HLL
H L X No Change
H X No Change
X = Don’t Care
Z = High Impedance
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ORDERING INFORMATION
MC74HCTXXXAN
MC74HCTXXXADW
Plastic
SOIC
1
20
1
20
MC74HCT273A
MOTOROLA High–Speed CMOS Logic Data
DL129 — Rev 6
2
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
V
CC
DC Supply Voltage (Referenced to GND)
– 0.5 to + 7.0
V
V
in
DC Input Voltage (Referenced to GND)
– 0.5 to VCC + 0.5
V
V
out
DC Output Voltage (Referenced to GND)
– 0.5 to VCC + 0.5
V
I
in
DC Input Current, per Pin
± 20
mA
I
out
DC Output Current, per Pin
± 25
mA
I
CC
DC Supply Current, VCC and GND Pins
± 50
mA
Î
Î
P
D
ОООООООООООО
Î
Power Dissipation in Still Air Plastic DIP†
SOIC Package†
ÎÎÎÎ
Î
750
500
Î
Î
mW
T
stg
Storage Temperature
– 65 to + 150
_
C
Î
Î
T
L
ОООООООООООО
Î
Lead Temperature, 1 mm from Case for 10 Seconds
(SOIC or Plastic DIP)
ÎÎÎÎ
Î
260
Î
Î
_
C
*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 Motorola High–Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V
CC
DC Supply Voltage (Referenced to GND)
4.5
5.5
V
Vin, V
out
DC Input Voltage, Output Voltage (Referenced to GND)
0
V
CC
V
T
A
Operating Temperature, All Package Types
– 55
+ 125
_
C
tr, t
f
Input Rise and Fall Time (Figure 1)
0
500
ns
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
ÎÎ
Î
Symbol
ООООООО
Î
Parameter
ООООООО
Î
Test Conditions
ÎÎ
Î
V
CC
V
ÎÎ
– 55 to
25_C
ÎÎ
Î
v
85_C
ÎÎ
Î
v
125_C
Î
Î
Unit
ÎÎ
Î
V
IH
ООООООО
Î
Minimum High–Level Input
Voltage
ООООООО
Î
V
out
= 0.1 V or VCC – 0.1 V
|I
out
| v 20 µA
ÎÎ
Î
4.5
5.5
ÎÎ
2.0
2.0
ÎÎ
Î
2.0
2.0
ÎÎ
Î
2.0
2.0
Î
Î
V
V
IL
Maximum Low–Level Input
Voltage
V
out
= 0.1 V or VCC – 0.1 V
|I
out
| v 20 µA
4.5
5.5
0.8
0.8
0.8
0.8
0.8
0.8
V
ÎÎ
Î
V
OH
ООООООО
Î
Minimum High–Level Output
Voltage
ООООООО
Î
Vin = VIH or V
IL
|I
out
| v 20 µA
ÎÎ
Î
4.5
5.5
ÎÎ
4.4
5.4
ÎÎ
Î
4.4
5.4
ÎÎ
Î
4.4
5.4
Î
Î
V
ÎÎÎОООООООÎООООООО
Î
Vin = VIH or V
IL
|I
out
| v 4.0 mA
ÎÎ
Î
4.5
ÎÎ
3.98
ÎÎ
Î
3.84
ÎÎ
Î
3.7
Î
Î
V
OL
Maximum Low–Level Output
Voltage
Vin = VIH or V
IL
|I
out
| v 20 µA
4.5
5.5
0.1
0.1
0.1
0.1
0.1
0.1
V
ÎÎÎОООООООÎООООООО
Î
Vin = VIH or V
IL
|I
out
| v 4.0 mA
ÎÎ
Î
4.5
ÎÎ
0.26
ÎÎ
Î
0.33
ÎÎ
Î
0.4
Î
Î
I
in
Maximum Input Leakage Current
Vin = VCC or GND
5.5
± 0.1
± 1.0
± 1.0
µA
ÎÎ
Î
I
CC
ООООООО
Î
Maximum Quiescent Supply
Current (per Package)
ООООООО
Î
Vin = VCC or GND
I
out
= 0 µA
ÎÎ
Î
5.5
ÎÎ
4.0
ÎÎ
Î
40
ÎÎ
Î
160
Î
Î
µA
∆I
CC
Additional Quiescent Supply
Vin = 2.4 V, Any One Input
=
≥ –55_C
25_C to 125_C
Current
V
i
n
=
V
CC
or
GND, Other Inputs
l
out
= 0 µA
5.5
2.9
2.4
mA
NOTE:Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).
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
V
out
should be constrained to the
range GND v (Vin or V
out
) v 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.
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