1/11
July 2001
s
HIGH SPEED:
f
MAX
= 250 MHz (TYP.) at V
CC
= 3.3V
s
COMPATIBLE WITH TTL OUTPUTS
s
LOW POWER DISSIPATION:
I
CC
=2
A (MAX.) at T
A
=25C
s
LOW NOISE:
V
OLP
= 0.2 V (TYP.) at V
CC
= 3.3V
s
75
TRANSMISSION LINE DRIVING
CAPABILITY
s
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 12mA (MIN) at V
CC
= 3.0V
s
PCI BUS LEVELS GUARANTEED AT 24 mA
s
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
s
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 3.6V (1.2V Data Retention)
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 74
s
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LVQ74 is a low voltage CMOS DUAL
D-TYPE FLIP FLOP WITH PRESET AND CLEAR
NON INVERTING fabricated with sub-micron
silicon gate and double-layer metal wiring C
2
MOS
technology. It is ideal for low power and low noise
3.3V applications.
A signal on the D INPUT is transferred to 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 setting on the
appropriate input.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
74LVQ74
DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
SOP
74LVQ74M
74LVQ74MTR
TSSOP
74LVQ74TTR
TSSOP
SOP
74LVQ74
2/11
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don't Care
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
PIN No
SYMBOL
NAME AND FUNCTION
1, 13
1CLR, 2CLR
Asynchronous Reset -
Direct Input
2, 12
1D, 2D
Data Inputs
3, 11
1CK, 2CK
Clock Input (LOW to
HIGH, Edge Triggered)
4, 10
1PR, 2PR
Asynchronous Set - Direct
Input
5, 9
1Q, 2Q
True Flip-Flop Outputs
6, 8
1Q, 2Q
Complement Flip-Flop
Outputs
7
GND
Ground (0V)
14
V
CC
Positive Supply Voltage
INPUTS
OUTPUTS
FUNCTION
CLR
PR
D
CK
Q
Q
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
H
H
X
Q
n
Q
n
NO CHANGE
74LVQ74
3/11
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
RECOMMENDED OPERATING CONDITIONS
1) Truth Table guaranteed: 1.2V to 3.6V
2) V
IN
from 0.8V to 2V
DC SPECIFICATIONS
1) Maximum test duration 2ms, one output loaded at time
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 75
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Current
50
mA
I
CC
or I
GND
DC V
CC
or Ground Current
400
mA
T
stg
Storage Temperature
-65 to +150
C
T
L
Lead Temperature (10 sec)
300
C
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage (note 1)
2 to 3.6
V
V
I
Input Voltage
0 to V
CC
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature
-55 to 125
C
dt/dv
Input Rise and Fall Time V
CC
= 3.0V (note 2)
0 to 10
ns/V
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25C
-40 to 85C
-55 to 125C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
V
IH
High Level Input
Voltage
3.0 to
3.6
2.0
2.0
2.0
V
V
IL
Low Level Input
Voltage
0.8
0.8
0.8
V
V
OH
High Level Output
Voltage
3.0
I
O
=-50
A
2.9
2.99
2.9
2.9
V
I
O
=-12 mA
2.58
2.48
2.48
I
O
=-24 mA
2.2
2.2
V
OL
Low Level Output
Voltage
3.0
I
O
=50
A
0.002
0.1
0.1
0.1
V
I
O
=12 mA
0
0.36
0.44
0.44
I
O
=24 mA
0.55
0.55
I
I
Input Leakage
Current
3.6
V
I
= V
CC
or GND
0.1
1
1
A
I
CC
Quiescent Supply
Current
3.6
V
I
= V
CC
or GND
2
20
20
A
I
OLD
Dynamic Output
Current (note 1, 2)
3.6
V
OLD
= 0.8 V max
36
25
mA
I
OHD
V
OHD
= 2 V min
-25
-25
mA
74LVQ74
4/11
DYNAMIC SWITCHING CHARACTERISTICS
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (V
ILD
), 0V to threshold
(V
IHD
), f=1MHz.
AC ELECTRICAL CHARACTERISTICS (C
L
= 50 pF, R
L
= 500
, Input t
r
= t
f
= 3ns)
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (t
OSLH
= |t
PLHm
- t
PLHn
|, t
OSHL
= |t
PHLm
- t
PHLn
|)
2) Parameter guaranteed by design
(*) Voltage range is 3.3V
0.3V
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25C
-40 to 85C
-55 to 125C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
V
OLP
Dynamic Low
Voltage Quiet
Output (note 1, 2)
3.3
C
L
= 50 pF
0.2
0.8
V
V
OLV
-0.8
-0.2
V
IHD
Dynamic High
Voltage Input (note
1, 3)
3.3
2
V
V
ILD
Dynamic Low
Voltage Input (note
1, 3)
3.3
0.8
V
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25C
-40 to 85C
-55 to 125C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
t
PLH
t
PHL
Propagation Delay
Time CK to Q
2.7
7.7
12.0
14.0
16.0
ns
3.3
(*)
6.3
9.0
10.5
12.0
t
PLH
t
PHL
Propagation Delay
Time PR or CLR to
Q
2.7
6.9
12.0
14.0
16.0
ns
3.3
(*)
5.8
9.0
10.5
12.0
t
w
Pulse Width CK ,
HIGH or LOW
2.7
4.0
1.5
4.0
5.0
ns
3.3
(*)
3.0
1.5
3.0
4.0
t
w(L)
Pulse Width PR or
CLR, LOW
2.7
4.0
1.5
4.0
5.0
ns
3.3
(*)
3.0
1.5
3.0
4.0
t
s
Setup Time D to CK
HIGH or LOW
2.7
4.0
-0.2
4.0
5.0
ns
3.3
(*)
3.0
-0.2
3.0
4.0
t
h
Hold Time D to CK
HIGH or LOW
2.7
2.0
0.2
2.0
2.0
ns
3.3
(*)
2.0
0.2
2.0
2.0
t
REM
Recovery Time PR
or CLR to Q
2.7
1.0
-1.0
1.0
1.0
ns
3.3
(*)
1.0
-1.0
1.0
1.0
f
MAX
Maximum Clock
Frequency
2.7
100
200
100
80
MHz
3.3
(*)
120
250
120
100
t
OSLH
t
OSHL
Output To Output
Skew Time
(note1, 2)
2.7
0.2
1.0
1.0
1.0
ns
3.3
(*)
0.2
1.0
1.0
1.0
74LVQ74
5/11
CAPACITIVE CHARACTERISTICS
1) C
PD
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. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/n (per circuit)
TEST CIRCUIT
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
L
= 500
or equivalent
R
T
= Z
OUT
of pulse generator (typically 50
)
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25C
-40 to 85C
-55 to 125C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
C
IN
Input Capacitance
3.3
4
pF
C
PD
Power Dissipation
Capacitance (note
1)
3.3
f
IN
= 10MHz
33
pF
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