INTEGRAL IN74ACT74D

IN74ACT74
DUAL D FLIP-FLOP WITH SET AND RESET
High-Speed Silicon-Gate CMOS
•
•
•
•
The IN74ACT74 is identical in pinout to the LS/ALS74,
HC/HCT74. The IN74ACT74 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS
inputs.
This device consists of two D flip-flops with individual Set,
Reset, and Clock inputs. Information at a D-input is transferred to
the corresponding Q output on the next positive going edge of
the clock input. Both Q and Q outputs are available from each
flip-flop. The Set and Reset inputs are asynchronous.
• 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; 0.1 µA @ 25°C
Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74ACT74N Plastic
IN74ACT74D SOIC
TA = -40° to 85° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Outputs
Set Rese Clock
Data
Q
Q
t
L
H
X
X
H
L
H
L
X
X
L
H
L
L
X
X
H*
H*
H
H
H
H
L
H
H
L
L
H
H
H
L
X
No Change
H
H
H
X
No Change
H
H
X
No Change
*Both outputs will remain high as long as Set
and Reset are low, but the output states are
unpredictable if Set and Reset go high
simultaneously.
X = don’t care
PIN 14 =VCC
PIN 7 = GND
1
IN74ACT74
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage (Referenced to GND)
-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
IIN
DC Input Current, per Pin
mA
±20
IOUT
DC Output Sink/Source Current, per Pin
mA
±50
ICC
DC Supply Current, VCC and GND Pins
mA
±50
PD
Power Dissipation in Still Air, Plastic DIP+
750
mW
SOIC Package+
500
Tstg
Storage Temperature
-65 to +150
°C
260
TL
Lead Temperature, 1 mm from Case for 10
°C
Seconds
(Plastic DIP or SOIC Package)
*
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
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC
DC Supply Voltage (Referenced to GND)
VIN, VOUT DC Input Voltage, Output Voltage (Referenced to
GND)
TJ
Junction Temperature (PDIP)
TA
Operating Temperature, All Package Types
IOH
Output Current - High
IOL
Output Current - Low
t r, tf
Input Rise and Fall Time * VCC =4.5 V
VCC =5.5 V
(except Schmitt Inputs)
*
VIN from 0.8 V to 2.0 V
Min
4.5
0
-40
0
0
Max
5.5
VCC
Unit
V
V
140
+85
-24
24
10
8.0
°C
°C
mA
mA
ns/V
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.
2
IN74ACT74
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
Guaranteed
VCC
Limits
Symbol
Parameter
Test Conditions
V
25 °C -40°C to
85°C
VIH
Minimum
High- VOUT=0.1 V or VCC-0.1 V 4.5
2.0
2.0
Level
Input
5.5
2.0
2.0
Voltage
VIL
Maximum Low - VOUT=0.1 V or VCC-0.1 V 4.5
0.8
0.8
Level
Input
5.5
0.8
0.8
Voltage
VOH
Minimum
High- IOUT ≤ -50 µA
4.5
4.4
4.4
Level
Output
5.5
5.4
5.4
Voltage
*
VIN=VIH
or
VIL
3.76
3.86
IOH=-24
mA 4.5
4.76
4.86
5.5
IOH=-24 mA
VOL
Maximum
Low- IOUT ≤ 50 µA
4.5
0.1
0.1
Level
Output
5.5
0.1
0.1
Voltage
*
VIN=VIH
or
VIL
0.44
0.36
IOL=24
mA 4.5
0.44
0.36
5.5
IOL=24 mA
IIN
Maximum Input VIN=VCC or GND
5.5
±0.1
±1.0
Leakage Current
5.5
1.5
Additional
Max VIN=VCC - 2.1 V
∆ICCT
ICC/Input
VOLD=1.65 V Max
IOLD
+Minimum
5.5
75
Dynamic Output
Current
VOHD=3.85 V Min
IOHD
+Minimum
5.5
-75
Dynamic Output
Current
VIN=VCC or GND
ICC
Maximum
5.5
4.0
40
Quiescent Supply
Current
(per Package)
*
All outputs loaded; thresholds on input associated with output under test.
+Maximum test duration 2.0 ms, one output loaded at a time.
3
Unit
V
V
V
V
µA
mA
mA
mA
µA
IN74ACT74
AC ELECTRICAL CHARACTERISTICS(VCC=5.0 V ± 10%, CL=50pF,Input tr=tf=3.0 ns)
Guaranteed Limits
Unit
Symbol
Parameter
25 °C
-40°C to
85°C
Min Max Min
Max
fmax
Maximum Clock Frequency (Figure 1)
145
125
MHz
tPLH
Propagation Delay, Clock to Q or Q 4.0 11.0 4.0
13.0
ns
(Figure 1)
tPHL
Propagation Delay, Clock to Q or Q 3.5 10.0 3.0
11.5
ns
(Figure 1)
tPLH
Propagation Delay, Set or Reset to Q or Q 3.0
9.5
2.5
10.5
ns
(Figure 2)
tPHL
Propagation Delay, Set or Reset to Q or Q 3.0 10.0 3.0
11.5
ns
(Figure 2)
CIN
Maximum Input Capacitance
4.5
4.5
pF
CPD
Typical @25°C,VCC=5.0 V
35
Power Dissipation Capacitance
TIMING REQUIREMENTS(VCC=5.0 V ± 10%, CL=50pF, Input tr=tf=3.0 ns)
Guaranteed Limits
Symbol
Parameter
25 °C
-40°C to
85°C
tsu
Minimum Setup Time, Data to Clock (Figure
3.0
3.5
3)
th
Minimum Hold Time, Clock to Data (Figure
1.0
1.0
3)
tw
Minimum Pulse Width, Clock, Set or Reset
5.0
6.0
(Figures 1,2)
trec
Minimum Recovery Time, Set or Reset to
0
0
Clock (Figure 2)
4
pF
Unit
ns
ns
ns
ns
IN74ACT74
Figure 1. Switching Waveform
Figure 2. Switching Waveform
Figure 3. Switching Waveform
EXPANDED LOGIC DIAGRAM
5