ONSEMI MC74ACT574

OCTAL D-TYPE
FLIP-FLOP WITH
3-STATE OUTPUTS
The MC74AC574/74ACT574 is a high-speed, low power octal flip-flop with a
buffered common Clock (CP) and a buffered common Output Enable (OE). The
information presented to the D inputs is stored in the flip-flops on the LOW-to-HIGH
Clock (CP) transition.
The MC74AC574/74ACT574 is functionally identical to the MC74AC374/
74ACT374 except for the pinouts.
• Inputs and Outputs on Opposite Sides of Package
Allowing Easy Interface with Microprocessors
• Useful as Input or Output Port for Microprocessors
• Functionally Identical to MC74AC374/74ACT374
• 3-State Outputs for Bus-Oriented Applications
• Outputs Source/Sink 24 mA
• ′ACT574 Has TTL Compatible Inputs
N SUFFIX
CASE 738-03
PLASTIC
VCC
O0
O1
O2
O3
O4
O5
O6
O7
CP
20
19
18
17
16
15
14
13
12
11
DW SUFFIX
CASE 751D-04
PLASTIC
1
2
3
4
5
6
7
8
9
10
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
LOGIC SYMBOL
PIN NAMES
D0–D7
CP
OE
O0–O7
Data Inputs
Clock Pulse Input
3-State Output Enable Input
3-State Outputs
D0 D1 D2 D3 D4 D5 D6 D7
CP
OE
O0 O1 O2 O3 O4 O5 O6 O7
FACT DATA
5-1
MC74AC57 MC74ACT574
FUNCTIONAL DESCRIPTION
The MC74AC574/74ACT574 consists of eight edgetriggered flip-flops with individual D-type inputs and 3-state
true outputs. The buffered clock and buffered Output Enable
are common to all flip-flops. The eight flip-flops will store the
state of their individual D inputs that meet the setup and hold
time requirements on the LOW-to-HIGH Clock (CP) transition.
With the Output Enable (OE) LOW, the contents of the eight
flip-flops are available at the outputs. When OE is HIGH, the
outputs go to the high impedance state. Operation of the OE
input does not affect the state of the flip-flops.
FUNCTION TABLE
Internal
Outputs
OE
Inputs
CP
D
Q
On
H
H
H
H
L
L
L
L
H
H
L
H
L
H
L
H
L
H
NC
NC
L
H
L
H
NC
NC
Z
Z
Z
Z
L
H
NC
NC
Function
H
H
Hold
Hold
Load
Load
Data Available
Data Available
No Change in Data
No Change in Data
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
= LOW-to-HIGH Clock Transition
NC = No Change
LOGIC DIAGRAM
D0
D1
D2
D3
D4
D5
D6
D7
CP
C
D
C
D
C
D
C
D
C
D
C
D
C
D
C
Q
Q
Q
Q
Q
Q
Q
Q
O0
O1
O2
O3
O4
O5
O6
O7
OE
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
FACT DATA
5-2
D
MC74AC57 MC74ACT574
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
–0.5 to +7.0
V
V
VCC
DC Supply Voltage (Referenced to GND)
Vin
DC Input Voltage (Referenced to GND)
–0.5 to VCC +0.5
Vout
DC Output Voltage (Referenced to GND)
–0.5 to VCC +0.5
V
Iin
DC Input Current, per Pin
±20
mA
Iout
DC Output Sink/Source Current, per Pin
±50
mA
ICC
DC VCC or GND Current per Output Pin
±50
mA
Tstg
Storage Temperature
–65 to +150
°C
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended
Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC
Supply Voltage
Vin, Vout
DC Input Voltage, Output Voltage (Ref. to GND)
tr, tf
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
tr, tf
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
TJ
Junction Temperature (PDIP)
TA
Operating Ambient Temperature Range
IOH
IOL
Min
Typ
Max
′AC
2.0
5.0
6.0
′ACT
4.5
5.0
5.5
0
VCC
VCC @ 3.0 V
150
VCC @ 4.5 V
40
VCC @ 5.5 V
25
VCC @ 4.5 V
10
VCC @ 5.5 V
8.0
Unit
V
V
ns/V
ns/V
140
°C
85
°C
Output Current — High
–24
mA
Output Current — Low
24
mA
–40
1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
FACT DATA
5-3
25
MC74AC57 MC74ACT574
DC CHARACTERISTICS
Symbol
Parameter
VCC
(V)
74AC
74AC
TA = +25°C
TA =
–40°C to +85°C
Typ
VIH
VIL
VOH
Conditions
Guaranteed Limits
Minimum High Level
Input Voltage
3.0
4.5
5.5
1.5
2.25
2.75
2.1
3.15
3.85
2.1
3.15
3.85
V
VOUT = 0.1 V
or VCC – 0.1 V
Maximum Low Level
Input Voltage
3.0
4.5
5.5
1.5
2.25
2.75
0.9
1.35
1.65
0.9
1.35
1.65
V
VOUT = 0.1 V
or VCC – 0.1 V
Minimum High Level
Output Voltage
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
V
2.56
3.86
4.86
2.46
3.76
4.76
0.1
0.1
0.1
0.1
0.1
0.1
3.0
4.5
5.5
0.36
0.36
0.36
0.44
0.44
0.44
3.0
4.5
5.5
VOL
Unit
Maximum Low Level
Output Voltage
3.0
4.5
5.5
0.002
0.001
0.001
IOUT = –50 µA
V
*VIN = VIL or VIH
–12 mA
IOH
–24 mA
–24 mA
IOUT = 50 µA
V
V
*VIN = VIL or VIH
12 mA
IOL
24 mA
24 mA
IIN
Maximum Input
Leakage Current
5.5
±0.1
±1.0
µA
VI = VCC, GND
IOZ
Maximum
3-State
Current
5.5
±0.5
±5.0
µA
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
5.5
75
mA
VOLD = 1.65 V Max
5.5
–75
mA
VOHD = 3.85 V Min
80
µA
VIN = VCC or GND
IOLD
IOHD
ICC
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
8.0
* All outputs loaded; thresholds on input associated with output under test.
† Maximum test duration 2.0 ms, one output loaded at a time.
Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
FACT DATA
5-4
MC74AC57 MC74ACT574
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
Symbol
Parameter
VCC*
(V)
Min
74AC
74AC
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Typ
Max
Min
Unit
Fig.
No.
MHz
3-3
Max
fmax
Maximum Clock
Frequency
3.3
5.0
75
95
60
85
tPLH
Propagation Delay
CP to On
3.3
5.0
3.5
2.0
13.5
9.5
3.5
2.0
15
11
ns
3-6
tPHL
Propagation Delay
CP to On
3.3
5.0
3.5
2.0
12
8.5
3.5
2.0
13.5
9.5
ns
3-6
tPZH
Output Enable Time
3.3
5.0
2.5
2.0
11
8.5
2.5
2.0
12
9.0
ns
3-7
tPZL
Output Enable Time
3.3
5.0
3.0
1.5
10.5
8.0
3.5
2.0
11.5
9.0
ns
3-8
tPHZ
Output Disable Time
3.3
5.0
4.0
2.0
12
9.5
4.5
2.0
13
10.5
ns
3-7
tPLZ
Output Disable Time
3.3
5.0
2.0
1.5
9.0
7.5
2.5
1.5
10
8.5
ns
3-8
Unit
Fig.
No.
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
AC OPERATING REQUIREMENTS
Symbol
Parameter
VCC*
(V)
Typ
74AC
74AC
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Guaranteed Minimum
ts
Setup Time, HIGH or LOW
Dn to CP
3.3
5.0
2.5
1.5
3.0
2.0
ns
3-9
th
Hold Time, HIGH or LOW
Dn to CP
3.3
5.0
1.5
1.5
1.5
1.5
ns
3-9
tw
CP Pulse Width
HIGH or LOW
3.3
5.0
6.0
4.0
7.0
5.0
ns
3-6
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
FACT DATA
5-5
MC74AC57 MC74ACT574
DC CHARACTERISTICS
Symbol
Parameter
VCC
(V)
74ACT
74ACT
TA = +25°C
TA =
–40°C to +85°C
Typ
Guaranteed Limits
Unit
Conditions
VIH
Minimum High Level
Input Voltage
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
VOUT = 0.1 V
or VCC – 0.1 V
VIL
Maximum Low Level
Input Voltage
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
VOUT = 0.1 V
or VCC – 0.1 V
VOH
Minimum High Level
Output Voltage
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
V
3.86
4.86
3.76
4.76
0.1
0.1
0.1
0.1
4.5
5.5
0.36
0.36
0.44
0.44
V
*VIN = VIL or VIH
24 mA
IOL
24 mA
±0.1
±1.0
µA
VI = VCC, GND
1.5
mA
VI = VCC – 2.1 V
±5.0
µA
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
5.5
75
mA
VOLD = 1.65 V Max
5.5
–75
mA
VOHD = 3.85 V Min
80
µA
VIN = VCC or GND
4.5
5.5
VOL
4.5
5.5
Maximum Low Level
Output Voltage
IIN
Maximum Input
Leakage Current
5.5
∆ICCT
Additional Max. ICC/Input
5.5
IOZ
Maximum
3-State
Current
5.5
IOLD
IOHD
ICC
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
0.001
0.001
0.6
±0.5
5.5
8.0
IOUT = –50 µA
*VIN = VIL or VIH
–24 mA
IOH
–24 mA
V
IOUT = 50 µA
V
* All outputs loaded; thresholds on input associated with output under test.
† Maximum test duration 2.0 ms, one output loaded at a time.
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
Symbol
Parameter
VCC*
(V)
Min
74ACT
74ACT
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Typ
Max
Min
Unit
Fig.
No.
ns
3-3
Max
fmax
Maximum Clock
Frequency
5.0
100
tPLH
Propagation Delay
CP to On
5.0
2.5
11
2.0
12
ns
3-6
tPHL
Propagation Delay
CP to On
5.0
2.0
10
1.5
11
ns
3-6
tPZH
Output Enable Time
5.0
2.0
9.5
1.5
10
ns
3-7
tPZL
Output Enable Time
5.0
2.0
9.0
1.5
10
ns
3-8
tPHZ
Output Disable Time
5.0
2.0
10.5
1.5
11.5
ns
3-7
tPLZ
Output Disable Time
5.0
2.0
8.5
1.5
9.0
ns
3-8
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
FACT DATA
5-6
85
MC74AC57 MC74ACT574
AC OPERATING REQUIREMENTS
Symbol
Parameter
VCC*
(V)
74ACT
74ACT
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Typ
Unit
Fig.
No.
Guaranteed Minimum
ts
Setup Time, HIGH or LOW
Dn to CP
5.0
2.5
2.5
ns
3-9
th
Hold Time, HIGH or LOW
Dn to CP
5.0
1.0
1.0
ns
3-9
tw
CP Pulse Width
HIGH or LOW
5.0
3.0
4.0
ns
3-6
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol
Parameter
Value
Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
40
pF
VCC = 5.0 V
FACT DATA
5-7
MC74AC57 MC74ACT574
OUTLINE DIMENSIONS
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
M
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
ISSUE E
–A–
20
11
–B–
10X
P
0.010 (0.25)
1
M
B
M
10
20X
J
D
0.010 (0.25)
M
T A
B
S
S
F
R X 45 _
C
–T–
18X
G
SEATING
PLANE
K
T B
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
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.150
(0.006) PER SIDE.
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
INCHES
DIM MIN
MAX
MIN
MAX
A
12.65
12.95
0.499
0.510
B
7.40
7.60
0.292
0.299
C
2.35
2.65
0.093
0.104
D
0.35
0.49
0.014
0.019
F
0.50
0.90
0.020
0.035
G
1.27 BSC
0.050 BSC
J
0.25
0.32
0.010
0.012
K
0.10
0.25
0.004
0.009
M
0_
7_
0_
7_
P
10.05
10.55
0.395
0.415
R
0.25
0.75
0.010
0.029
M
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◊
FACT DATA
5-8
*MC74AC574/D*
MC74AC574/D