5-1
FACT DATA
The MC74AC/ACT175 is a high-speed quad D flip-flop. The device is useful for
general flip-flop requirements where clock and clear inputs are common. The
information on the D inputs is transferred to storage during the LOW-to-HIGH clock
transition. The device has a Master Reset to simultaneously clear all flip-flops, when
MR
is low.
The MC74AC/ACT175 consists of four edge-triggered D flip-flops with individual
D inputs and Q and Q
outputs. The Clock (CP) and Master Reset (MR) are common
to all flip-flops. Each D input’s state is transferred to the corresponding flip-flop’s
output following the LOW-to-HIGH Clock (CP) transition. A LOW input to the Master
Reset (MR
) will force all Q outputs LOW and Q outputs HIGH independent of Clock
or Data inputs. The MC74AC/ACT175 is useful for applications where the Clock and
Master Reset are common to all storage elements.
• Outputs Source/Sink 24 mA
• ′ACT175 Has TTL Compatible Inputs
Pinout: 16-Lead Packages (Top View)
1516 14 13 12 11 10
21 3 4 5 6 7
V
CC
9
8
Q3Q
3D3D2Q2Q2
CP
MR
Q0Q
0D0D1Q1Q1
GND
PIN NAMES
Data Inputs
Clock Pulse Input
Master Reset Input
Outputs
Outputs
D0 – D
3
CP
MR
Q0 – Q
3
Q
0
– Q
3
TRUTH TABLE
Inputs Outputs
MR CP D Qn Qn
L X X L H
H H H L
H L L H
H L X Qn Qn
QUAD D FLIP-FLOP
WITH MASTER RESET
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
LOGIC SYMBOL
D0D1D2D
3
Q0Q0Q1Q1Q2Q2Q3Q
3
CP
MR
查询MC74AC175供应商
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Transition of Clock
MC74AC175 MC74ACT175
5-2
FACT DATA
LOGIC DIAGRAM
MR CP D
3
D
2
D
1
D
0
D
CP
CD
Q
Q
3
Q
3
Q
Q
2
Q
2
Q
1Q1
Q
0Q0
D
CP
CD
Q
Q
D
CP
CD
Q
Q
D
CP
CD
Q
Q
Please note that this diagram is provided only for the understanding of logic operations and should not be
used to estimate propagation delays.
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 Sink/Source Current, per Pin ± 50 mA
I
CC
DC VCC or GND Current per Output Pin ± 50 mA
T
stg
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 Min Typ Min Unit
′AC 2.0 5.0 6.0
VCCSupply Voltage
′ACT 4.5 5.0 5.5
V
Vin, V
out
DC Input Voltage, Output Voltage (Ref. to GND) 0 V
CC
V
VCC @ 3.0 V 150
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
VCC @ 4.5 V 40 ns/V
r
, t
f
′AC Devices except Schmitt Inputs
VCC @ 5.5 V 25
VCC @ 4.5 V 10
tr, t
f
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
VCC @ 5.5 V 8.0
ns/V
T
J
Junction Temperature (PDIP) 140 °C
T
A
Operating Ambient Temperature Range –40 25 85 °C
I
OH
Output Current — HIGH –24 mA
I
OL
Output Current — LOW 24 mA
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.
tr, t
f
Input Rise and Fall Time (Note 2)
MC74AC175 MC74ACT175
5-3
FACT DATA
DC CHARACTERISTICS
74AC 74AC
Symbol
Parameter
V
CC
(V)
TA = +25°C
TA =
–40°C to +85°C
Unit
Conditions
Typ Guaranteed Limits
V
IH
3.0 1.5 2.1 2.1 V
OUT
= 0.1 V
4.5 2.25 3.15 3.15 V or VCC – 0.1 V
5.5 2.75 3.85 3.85
V
IL
3.0 1.5 0.9 0.9 V
OUT
= 0.1 V
4.5 2.25 1.35 1.35 V or VCC – 0.1 V
5.5 2.75 1.65 1.65
V
OH
3.0 2.99 2.9 2.9 I
OUT
= – 50 µA
4.5 4.49 4.4 4.4 V
5.5 5.49 5.4 5.4
*VIN = VIL or V
IH
3.0 2.56 2.46
– 12 mA
4.5 3.86 3.76
V
I
OH
– 24 mA
5.5 4.86 4.76 – 24 mA
V
OL
3.0 0.002 0.1 0.1 I
OUT
= 50 µA
4.5 0.001 0.1 0.1 V
5.5 0.001 0.1 0.1
*VIN = VIL or V
IH
3.0 0.36 0.44
12 mA
4.5 0.36 0.44
V
I
OH
24 mA
5.5 0.36 0.44 24 mA
I
IN
5.5
±0.1
±1.0
µA
I
= VCC, GND
I
OLD
5.5 75 mA V
OLD
= 1.65 V Max
I
OHD
Output Current
5.5 –75 mA V
OHD
= 3.85 V Min
I
CC
5.5
8.080µA
IN
= VCC or GND
* 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.
AC CHARACTERISTICS
74AC 74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
3.3 149 139
f
max
5.0 187 187
MHz
3-3
3.3 2.0 12.0 2.0 13.5
t
PLH
n
5.0 1.5 9.0 1.0 9.5
ns
3-6
3.3 2.5 13.0 2.0 14.5
t
PHL
n
5.0 1.5 9.5 1.5 10.5
ns
3-6
3.3 3.0 12.5 2.5 13.5
t
PLH
to Q
n
5.0 2.0 9.0 1.5 10.0
ns
3-6
3.3 3.0 11.0 2.5 12.5
t
PHL
to Q
n
5.0 2.0 8.5 1.5 9.0
ns
3-6
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
Maximum Low Level
Output Voltage
Maximum Input
Leakage Current
VI = VCC, GND
†Minimum Dynamic
Maximum Quiescent
Supply Current
Maximum Clock
Frequency
Propagation Delay
CP to Qn or Q
Propagation Delay
CP to Qn or Q
Propagation Delay
MR
Propagation Delay
MR
VIN = VCC or GND
MC74AC175 MC74ACT175
5-4
FACT DATA
AC OPERATING REQUIREMENTS
74AC 74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ Guaranteed Minimum
Set-up Time, HIGH or LOW 3.3 4.5 4.5
t
s
Dn to CP 5.0 3.0 3.0
ns
3-9
Hold Time, HIGH or LOW 3.3 1.0 1.0
t
h
Dn to CP 5.0 1.0 1.0
ns
3-9
MR Pulse Width Low 3.3 4.5 4.5
t
w
5.0 3.5 3.5
ns
3-6
CP Pulse Width 3.3 4.5 5.0
t
w
5.0 3.5 3.5
ns
3-6
Recovery TIme 3.3 0 0
t
rec
MR to CP 5.0 0 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.
DC CHARACTERISTICS
74ACT 74ACT
Symbol
Parameter
V
CC
(V)
TA = +25°C
TA =
–40°C to +85°C
Unit
Conditions
Typ Guaranteed Limits
V
IH
4.5 1.5 2.0 2.0
V
OUT
= 0.1 V
5.5 1.5 2.0 2.0
V
or VCC – 0.1 V
V
IL
4.5 1.5 0.8 0.8
V
OUT
= 0.1 V
5.5 1.5 0.8 0.8
V
or VCC – 0.1 V
V
OH
4.5 4.49 4.4 4.4
I
OUT
= – 50 µA
5.5 5.49 5.4 5.4
V
*VIN = VIL or V
IH
4.5 3.86 3.76 V
– 24 mA
5.5 4.86 4.76
I
OH
– 24 mA
V
OL
4.5 0.001 0.1 0.1
I
OUT
= 50 µA
5.5 0.001 0.1 0.1
V
*VIN = VIL or V
IH
4.5 0.36 0.44 V
24 mA
5.5 0.36 0.44
I
OH
24 mA
I
IN
5.5
±0.1
±1.0
µA
I
= VCC, GND
∆I
CCT
Additional Max. ICC/Input 5.5 0.6 1.5 mA VI = VCC – 2.1 V
I
OLD
5.5 75 mA V
OLD
= 1.65 V Max
I
OHD
Output Current
5.5 –75 mA V
OHD
= 3.85 V Min
I
CC
5.5
8.080µA
IN
= VCC or GND
* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
Maximum Low Level
Output Voltage
Maximum Input
Leakage Current
VI = VCC, GND
†Minimum Dynamic
Maximum Quiescent
Supply Current
VIN = VCC or GND
MC74AC175 MC74ACT175
5-5
FACT DATA
AC CHARACTERISTICS
74ACT 74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
f
max
5.0
175
145
MHz
3-3
t
PLH
5.0
2.0
10.0
1.5
11.0ns3-6
t
PHL
5.0
2.0
11.0
1.5
12.0ns3-6
t
PHL
to Qn or Q
n
5.0
2.0
9.5
1.5
10.5ns3-6
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
AC OPERATING REQUIREMENTS
74ACT 74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ Guaranteed Minimum
Set-up Time, HIGH or LOW
Dn to CP
5.0
ns
3-9
Hold Time, HIGH or LOW
t
h
Dn to CP
5.0
1.0
1.0
ns
3-9
MR Pulse Width, LOW
tw5.0
3.0
4.0
ns
3-6
CP Pulse Width,
t
w
HIGH or LOW
5.0
3.0
3.5
ns
3-6
Recovery TIme
t
rec
MR to CP
5.000
ns
3-6
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol Parameter
Value
Typ
Unit Test Conditions
C
IN
Input Capacitance 4.5 pF VCC = 5.0 V
C
PD
Power Dissipation Capacitance 45.0 pF VCC = 5.0 V
Maximum Clock
Frequency
Propagation Delay
CP to Q
n
Propagation Delay
CP to Q
n
Propagation Delay
MR
t
(H)
s
(L)
2.0
2.5 2.5
2.0
MC74AC175 MC74ACT175
5-6
FACT DATA
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC DIP PACKAGE
CASE 648–08
ISSUE R
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
ISSUE J
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 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
1 8
16 9
SEATING
PLANE
F
J
M
R
X 45
_
G
8 PLP
–B–
–A–
M
0.25 (0.010) B
S
–T–
D
K
C
16 PL
S
B
M
0.25 (0.010) A
S
T
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A 9.80 10.00 0.386 0.393
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019
F 0.40 1.25 0.016 0.049
G 1.27 BSC 0.050 BSC
J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7
P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019
_ _ _ _
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
–A–
B
F
C
S
H
G
D
J
L
M
16 PL
SEATING
1 8
916
K
PLANE
–T–
M
A
M
0.25 (0.010) T
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A 0.740 0.770 18.80 19.55
B 0.250 0.270 6.35 6.85
C 0.145 0.175 3.69 4.44
D 0.015 0.021 0.39 0.53
F 0.040 0.70 1.02 1.77
G 0.100 BSC 2.54 BSC
H 0.050 BSC 1.27 BSC
J 0.008 0.015 0.21 0.38
K 0.110 0.130 2.80 3.30
L 0.295 0.305 7.50 7.74
M 0 10 0 10
S 0.020 0.040 0.51 1.01
____
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MC74AC175/D
*MC74AC175/D*
◊
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