M74HC74
DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR
■ HIGH SPEED :
f
= 67MHz (TYP.) at VCC = 6V
MAX
■ LOW POWER DISSIPATION:
I
=2µA(MAX.) at TA=25°C
CC
■ HIGH NOISE IMMUNITY:
V
= V
NIH
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
| = IOL = 4mA (MIN)
OH
■ BALANCED PROPAGATION DELAYS:
t
≅ t
PLH
■ WIDE OPERATING VOLTAGE RANGE:
V
(OPR) = 2V to 6V
CC
■ PIN AND FUNCTION COMPATIBLE WITH
= 28 % VCC (MIN.)
NIL
PHL
74 SERIES 74
DESCRIPTION
The M74HC74 is an high speed CMOS DUAL D
TYPE FLIP FLOP WITH CLEAR fabricated with
silicon gate C
2
MOS technology.
A signal on the D INPU T is transferred on the Q
OUTPUT during the positive going transition of the
clock pulse. CLEAR and PRESET are
TSSOPDIP SOP
ORDER CODES
PACKAGE TUBE T & R
DIP M74HC74B1R
SOP M74HC74M1R M74HC74RM13TR
TSSOP M74HC74TTR
independent of t he clock and accomplis hed by a
low on the appropriate input.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/12July 2001
M74HC74
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1,13 1CLR
2, 12 1D, 2D Data Inputs
3, 11 1CK, 2CK
4, 10 1PR
5, 9 1Q, 2Q True Flip-Flop Outputs
6, 8 1Q
7 GND Ground (0V)
14 Vcc Positive Supply Voltage
TRUTH TABLE
, 2CLR
, 2PR
, 2Q
Asynchronous Reset Direct Input
Clock Input
(LOW-to-HIGH,
Edge-Triggered)
Asynchronous Set - Direct
Input
Complement Flip-Flop
Outputs
INPUTS OUTPUTS
CLR
L H X X L H CLEAR
H L X X H L PRESET
L L X X H H ----
H H L L H ---H H H H L ---HHX
X : Don’t Care
PR DCKQ Q
Q
n
Q
n
LOGIC DIAGRAM
FUNCTION
NO CHANGE
This log i c diagram has not be used to est i m at e propagation delays
2/12
M74HC74
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
I
I
OK
I
I
or I
CC
P
T
T
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
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
V
T
t
r
Supply Voltage
CC
DC Input Voltage -0.5 to VCC + 0.5
I
DC Output Voltage -0.5 to VCC + 0.5
O
DC Input Diode Current
IK
DC Output Diode Current
DC Output Current
O
DC VCC or Ground Current
GND
Power Dissipation
D
Storage Temperature
stg
Lead Temperature (10 sec)
L
°C; derate to 300mW by 10mW/°C from 65°C to 85°C
Supply Voltage
CC
Input Voltage 0 to V
I
Output Voltage 0 to V
O
Operating Temperature
op
Input Rise and Fall Time VCC = 2.0V
, t
f
V
V
CC
CC
= 4.5V
= 6.0V
-0.5 to +7 V
± 20 mA
± 20 mA
± 25 mA
± 50 mA
500(*) mW
-65 to +150 °C
300 °C
2 to 6 V
CC
CC
-55 to 125 °C
0 to 1000 ns
0 to 500 ns
0 to 400 ns
V
V
V
V
3/12
M74HC74
DC SPECIFICATIONS
Symbol Parameter
V
V
V
V
I
High Level Input
IH
Voltage
Low Level Input
IL
Voltage
High Level Output
OH
Voltage
Low Level Output
OL
Voltage
I
Input Leakage
I
Current
Quiescent Supply
CC
Current
Test Condition Value
V
(V)
CC
= 25°C
A
Min. Typ. Max. Min. Max. Min. Max.
-40 to 85°C -55 to 125°C
T
2.0 1.5 1.5 1.5
6.0 4.2 4.2 4.2
2.0 0.5 0.5 0.5
6.0 1.8 1.8 1.8
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
6.0
6.0
IO=-20 µA
I
=-20 µA
O
I
=-20 µA
O
I
=-4.0 mA
O
I
=-5.2 mA
O
IO=20 µA
I
=20 µA
O
I
=20 µA
O
I
=4.0 mA
O
I
=5.2 mA
O
= VCC or GND
V
I
= VCC or GND
V
I
1.9 2.0 1.9 1.9
4.4 4.5 4.4 4.4
5.9 6.0 5.9 5.9
4.18 4.31 4.13 4.10
5.68 5.8 5.63 5.60
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.17 0.26 0.33 0.40
0.18 0.26 0.33 0.40
± 0.1 ± 1 ± 1 µA
22040µA
Unit
V4.5 3.15 3.15 3.15
V4.5 1.35 1.35 1.35
V
V
4/12