M74HC174
HEX D-TYPE FLIP FLOP WITH CLEAR
■
■
■
■
■
■
■
HIGH SPEED :
fMAX = 66MHz (TYP.) at VCC = 6V
LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA=25°C
HIGH NOISE IMMUNITY:
VNIH = V NIL = 28 % VCC (MIN.)
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 174
DESCRIPTION
The M74HC174 is an high speed CMOS HEX
D-TYPE FLIP FLOP WITH CLEAR fabricated with
silicon gate C2MOS technology.
Information signals applied to D inputs are
transferred to the Q output on the positive going
edge of the clock pulse. When the CLEAR input is
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC174B1R
M74HC174M1R
T&R
M74HC174RM13TR
M74HC174TTR
held low, the Q outputs are held low independently
of the other inputs.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/11
M74HC174
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
1
CLEAR
2, 5, 7, 10,
12, 15
3, 4, 6, 11,
13, 14
NAME AND FUNCTION
Asynchronous Master
Reset (Active Low)
Q0 to Q5
Flip-Flop Outputs
D0 to D5
Data Inputs
9
CLOCK
8
16
GND
Vcc
Clock Input (LOW to
HIGH, edge triggered)
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
FUNCTION
CLEAR
D
CK
Q
L
X
X
L
H
L
L
H
H
H
H
X
Qn
X : Don’t Care
LOGIC DIAGRAM
This logic diagram has not to be used to estimate propagation delays
2/11
CLEAR
NO CHANGE
M74HC174
ABSOLUTE MAXIMUM RATINGS
Symbol
V CC
Parameter
Supply Voltage
Value
Unit
-0.5 to +7
V
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
V
DC Input Diode Current
± 20
mA
IOK
DC Output Diode Current
± 20
mA
IO
DC Output Current
VI
DC Input Voltage
VO
DC Output Voltage
IIK
ICC or IGND DC VCC or Ground Current
PD
Power Dissipation
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
V
± 25
mA
± 50
mA
500(*)
mW
-65 to +150
°C
300
°C
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
V CC
Parameter
Supply Voltage
VI
Input Voltage
VO
Output Voltage
Top
Operating Temperature
Input Rise and Fall Time
tr, tf
Value
Unit
2 to 6
V
0 to VCC
V
0 to VCC
V
-55 to 125
°C
VCC = 2.0V
0 to 1000
ns
VCC = 4.5V
0 to 500
ns
VCC = 6.0V
0 to 400
ns
3/11
M74HC174
DC SPECIFICATIONS
Test Condition
Symbol
VIH
V IL
VOH
VOL
II
ICC
4/11
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Quiescent Supply
Current
Value
TA = 25°C
VCC
(V)
Min.
2.0
4.5
6.0
2.0
Typ.
Max.
1.5
3.15
4.2
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
1.5
3.15
4.2
4.5
6.0
Max.
1.5
3.15
4.2
V
0.5
0.5
0.5
1.35
1.8
1.35
1.8
1.35
1.8
2.0
IO=-20 µA
1.9
2.0
1.9
1.9
4.5
IO=-20 µA
4.4
4.5
4.4
4.4
Unit
V
6.0
IO=-20 µA
5.9
6.0
5.9
5.9
4.5
IO=-4.0 mA
4.18
4.31
4.13
4.10
6.0
IO=-5.2 mA
5.68
2.0
IO=20 µA
0.0
0.1
0.1
0.1
4.5
IO=20 µA
0.0
0.1
0.1
0.1
6.0
IO=20 µA
0.0
0.1
0.1
0.1
4.5
IO=4.0 mA
0.17
0.26
0.33
0.40
6.0
IO=5.2 mA
0.18
0.26
0.33
0.40
6.0
VI = VCC or GND
± 0.1
±1
±1
µA
6.0
VI = VCC or GND
4
40
80
µA
5.8
5.63
V
5.60
V
M74HC174
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Symbol
Parameter
tTLH tTHL Output Transition
Time
tPLH tPHL Propagation Delay
Time (CLOCK - Q)
tPLH tPHL Propagation Delay
Time (CLEAR - Q)
fMAX
Maximum Clock
Frequency
tW(H)
tW(L)
Minimum Pulse
Width (CLOCK)
tW(L)
Minimum Pulse
Width (CLEAR)
ts
th
tREM
Minimum Set-up
Time
Minimum Hold
Time
Minimum Removal
Time
Value
TA = 25°C
VCC
(V)
Min.
-40 to 85°C
-55 to 125°C
Min.
Min.
Typ.
Max.
2.0
4.5
6.0
2.0
30
8
7
68
75
15
13
135
95
19
16
170
110
22
19
205
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
17
14
72
18
15
14
56
66
24
6
5
24
6
5
28
7
6
27
23
145
29
25
34
29
180
36
31
41
35
220
44
37
7.2
36
42
Max.
5.8
29
34
75
15
13
75
15
13
75
15
13
0
0
0
5
5
5
5
5
5
Max.
4.8
24
28
95
19
16
95
19
16
95
19
16
0
0
0
5
5
5
Unit
ns
ns
ns
MHz
110
22
19
110
22
19
110
22
19
0
0
0
5
5
5
ns
ns
ns
ns
ns
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
VCC
(V)
Value
TA = 25°C
Min.
Typ.
Max.
10
CIN
Input Capacitance
5.0
5
C PD
Power Dissipation
Capacitance (note
1)
5.0
40
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per FLIP/
FLOP)
And the total CPD when N pcs of FLIP-FLOP operate can be gained by the following equation : CPD (total) = 38 + 15 x n
5/11
M74HC174
TEST CIRCUIT
C L = 50pF or equivalent (includes jig and probe capacitance)
R T = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1: PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (CLOCK), SETUP AND
HOLD TIME (nD TO CLOCK), CLOCK MAXIMUM FREQUENCY (f=1MHz; 50% duty cycle)
6/11
M74HC174
WAVEFORM 2 :PROPAGATION DELAY TIME (nQ TO CLEAR)(f=1MHz; 50% duty cycle)
WAVEFORM 3 :MINIMUM PULSE WIDTH (CLEAR), MINIMUM REMOVAL TIME (CLEAR TO
CLOCK)(f=1MHz; 50% duty cycle)
7/11
M74HC174
Plastic DIP-16 (0.25) MECHANICAL DATA
mm.
inch
DIM.
MIN.
a1
0.51
B
0.77
TYP
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.030
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
17.78
0.700
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
0.130
1.27
0.050
P001C
8/11
M74HC174
SO-16 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.003
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
9.8
10
0.385
0.393
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.62
0.024
8° (max.)
PO13H
9/11
M74HC174
TSSOP16 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0089
D
4.9
5
5.1
0.193
0.197
0.201
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
1
e
0.65 BSC
K
0°
L
0.45
A
0.60
0.0256 BSC
8°
0°
0.75
0.018
8°
0.024
0.030
A2
A1
b
e
K
c
L
E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
10/11
M74HC174
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consequences of use of such information nor for any infringe ment of patents or other righ ts 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 pub lication are subject to change without notice. Thi s pub lication supersedes and replaces all information
previously supplied. STMicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or
systems without express written approval of STMicroelectronics.
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11/11