M74HC74B1R [STMICROELECTRONICS]
DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR; 带预置和清除两个D型触发器
| 型号： | M74HC74B1R |
| 厂家： | 
ST |
| 描述： | DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR |
| 文件： | 总12页 (文件大小：456K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M74HC74
DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR
■
■
■
■
■
■
■
HIGH SPEED :
= 67MHz (TYP.) at V = 6V
f
MAX
CC
LOW POWER DISSIPATION:
=2µA(MAX.) at T =25°C
I
CC
A
HIGH NOISE IMMUNITY:
= V = 28 % V (MIN.)
V
NIH
NIL
CC
DIP
SOP
TSSOP
T & R
SYMMETRICAL OUTPUT IMPEDANCE:
|I | = I = 4mA (MIN)
OH
OL
BALANCED PROPAGATION DELAYS:
t
t
ORDER CODES
PACKAGE
PLH
PHL
WIDE OPERATING VOLTAGE RANGE:
(OPR) = 2V to 6V
TUBE
V
CC
DIP
SOP
M74HC74B1R
M74HC74M1R
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 74
M74HC74RM13TR
M74HC74TTR
TSSOP
DESCRIPTION
The M74HC74 is an high speed CMOS DUAL D
TYPE FLIP FLOP WITH CLEAR fabricated with
silicon gate C MOS technology.
A signal on the D INPUT is transferred on the Q
OUTPUT during the positive going transition of the
clock pulse. CLEAR and PRESET are
independent of the clock and accomplished by a
low on the appropriate input.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
2
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/12
M74HC74
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
Asynchronous Reset -
Direct Input
1,13
1CLR, 2CLR
1D, 2D
2, 12
Data Inputs
Clock Input
3, 11
1CK, 2CK (LOW-to-HIGH,
Edge-Triggered)
Asynchronous Set - Direct
Input
4, 10
5, 9
1PR, 2PR
1Q, 2Q
True Flip-Flop Outputs
Complement Flip-Flop
Outputs
6, 8
1Q, 2Q
7
GND
Vcc
Ground (0V)
14
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
FUNCTION
CLR
PR
D
CK
Q
Q
L
H
L
H
L
L
X
X
X
X
X
X
L
H
H
H
L
CLEAR
PRESET
----
H
H
H
H
H
H
L
H
X
L
H
L
----
----
H
Q
Q
H
NO CHANGE
n
n
X : Don’t Care
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
2/12
M74HC74
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
Supply Voltage
-0.5 to +7
V
V
CC
V
DC Input Voltage
-0.5 to V + 0.5
I
CC
V
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
-0.5 to V + 0.5
V
O
CC
I
± 20
± 20
mA
mA
mA
mA
mW
°C
IK
I
OK
I
± 25
O
I
or I
DC V
or Ground Current
CC
± 50
CC
GND
P
Power Dissipation
500(*)
-65 to +150
300
D
T
Storage Temperature
Lead Temperature (10 sec)
stg
T
°C
L
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
Supply Voltage
2 to 6
0 to V
V
V
CC
V
Input Voltage
I
CC
V
Output Voltage
0 to V
CC
V
O
T
Operating Temperature
Input Rise and Fall Time
-55 to 125
0 to 1000
0 to 500
0 to 400
°C
ns
ns
ns
op
V
V
V
= 2.0V
= 4.5V
= 6.0V
CC
CC
CC
t , t
r
f
3/12
M74HC74
DC SPECIFICATIONS
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
V
High Level Input
Voltage
2.0
4.5
6.0
2.0
4.5
6.0
2.0
1.5
3.15
4.2
1.5
3.15
4.2
1.5
3.15
4.2
IH
V
V
V
Low Level Input
Voltage
0.5
1.35
1.8
0.5
1.35
1.8
0.5
1.35
1.8
IL
V
High Level Output
Voltage
I =-20 µA
1.9
4.4
5.9
2.0
4.5
6.0
1.9
4.4
1.9
4.4
OH
O
I =-20 µA
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
O
I =-20 µA
5.9
5.9
V
V
O
I =-4.0 mA
4.18 4.31
4.13
5.63
4.10
5.60
O
I =-5.2 mA
5.68
5.8
0.0
0.0
0.0
O
V
Low Level Output
Voltage
I =20 µA
0.1
0.1
0.1
0.1
0.1
0.1
0.1
OL
O
I =20 µA
O
I =20 µA
0.1
0.1
O
I =4.0 mA
0.17 0.26
0.18 0.26
0.33
0.33
0.40
0.40
O
I =5.2 mA
O
I
Input Leakage
Current
I
V = V
or GND
6.0
6.0
± 0.1
± 1
± 1
µA
µA
I
CC
CC
I
Quiescent Supply
Current
CC
V = V
or GND
2
20
40
I
4/12
M74HC74
AC ELECTRICAL CHARACTERISTICS (C = 50 pF, Input t = t = 6ns)
L
r
f
Test Condition
Value
-40 to 85°C -55 to 125°C Unit
T = 25°C
Symbol
Parameter
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
t
t
Output Transition
Time
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
30
8
75
15
95
19
110
22
TLH THL
ns
ns
7
13
16
19
t
t
Propagation Delay
Time (CK - Q, Q)
48
16
13
51
17
15
21
63
67
18
6
150
30
190
38
225
45
PLH PHL
26
32
38
t
t
Propagation Delay
Time (CLR, PR -
Q, Q)
150
30
190
38
225
45
PLH PHL
ns
26
32
38
f
Maximum Clock
Frequency
6.2
31
37
5
4.2
21
25
MAX
25
30
MHz
ns
t
t
Minimum Pulse
Width (CK)
75
15
13
75
15
13
75
15
13
0
95
19
16
95
19
16
95
19
16
0
110
22
19
110
22
19
110
22
19
0
W(H)
W(L)
W(L)
6
t
Minimum Pulse
Width (CLR, PR)
21
7
ns
6
t
t
Minimum Set-up
Time
15
4
s
ns
3
Minimum Hold
Time
h
0
0
0
ns
0
0
0
t
Minimum Removal
Time (CLR, PR to
CK)
0
0
25
5
30
6
35
7
REM
ns
6.0
0
4
5
6
CAPACITIVE CHARACTERISTICS
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
C
Input Capacitance
5.0
5
10
10
10
pF
pF
IN
C
Power Dissipation
Capacitance (note
1)
PD
5.0
34
1) C is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
PD
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
FLOP)
= C x V x f + I /2 (per FLIP/
CC(opr)
PD CC IN CC
5/12
M74HC74
TEST CIRCUIT
C
R
= 50pF or equivalent (includes jig and probe capacitance)
L
T
= Z
of pulse generator (typically 50Ω)
OUT
WAVEFORM 1: nCK TO nQ,nQ PROPAGATION DELAY TIMES,nD TO nCK SETUP AND HOLD
TIMES, nCK MINIMUM PULSE WIDTH, MAXIMUM nCK FREQUENCY (f=1MHz; 50% duty cycle)
6/12
M74HC74
WAVEFORM 2 :nQ , nQ TO CLR, PR PROPAGATION DELAY TIMES, MINIMUM PULSE WIDTH
(nCLR and nPR) (f=1MHz; 50% duty cycle)
WAVEFORM 3 : MINIMUM PULSE WIDTH (nCLR and nPR),MINIMUM REMOVAL TIME (nCLR and
nPR TO nCK)(f=1MHz; 50% duty cycle)
7/12
M74HC74
WAVEFORM 4 : MINIMUM PULSE WIDTH (nCLR, nPR , nCK) (f=1MHz; 50% duty cycle)
8/12
M74HC74
Plastic DIP-14 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
0.51
1.39
TYP
MAX.
MIN.
0.020
0.055
MAX.
a1
B
b
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
2.54
15.24
0.335
0.100
0.600
e3
F
7.1
5.1
0.280
0.201
I
L
3.3
0.130
Z
1.27
2.54
0.050
0.100
P001A
9/12
M74HC74
SO-14 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.75
0.2
MIN.
MAX.
0.068
0.007
0.064
0.018
0.010
A
a1
a2
b
0.1
0.003
1.65
0.46
0.25
0.35
0.19
0.013
0.007
b1
C
0.5
0.019
c1
D
45° (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.344
0.244
E
e
1.27
7.62
0.050
0.300
e3
F
3.8
4.6
0.5
4.0
5.3
0.149
0.181
0.019
0.157
0.208
0.050
0.026
G
L
1.27
0.68
M
S
8° (max.)
PO13G
10/12
M74HC74
TSSOP14 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.2
MIN.
MAX.
0.047
0.006
0.041
0.012
0.0089
0.201
0.260
0.176
A
A1
A2
b
0.05
0.8
0.15
1.05
0.30
0.20
5.1
0.002
0.031
0.007
0.004
0.193
0.244
0.169
0.004
0.039
1
0.19
0.09
4.9
c
D
5
6.4
0.197
0.252
E
6.2
6.6
E1
e
4.3
4.4
4.48
0.173
0.65 BSC
0.0256 BSC
K
0°
8°
0°
8°
L
0.45
0.60
0.75
0.018
0.024
0.030
A2
A
K
L
b
e
A1
c
E
D
E1
PIN 1 IDENTIFICATION
1
0080337D
11/12
M74HC74
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
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12/12
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