74LVQ74
DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR
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HIGH SPEED:
fMAX = 250 MHz (TYP.) at VCC = 3.3V
COMPATIBLE WITH TTL OUTPUTS
LOW POWER DISSIPATION:
ICC =2 µA (MAX.) at TA=25°C
LOW NOISE:
VOLP = 0.2 V (TYP.) at VCC = 3.3V
75Ω TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 12mA (MIN) at VCC = 3.0V
PCI BUS LEVELS GUARANTEED AT 24 mA
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 74
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 C2MOS
SOP
TSSOP
Table 1: Order Codes
PACKAGE
T&R
SOP
TSSOP
74LVQ74MTR
74LVQ74TTR
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.
Figure 1: Pin Connection And IEC Logic Symbols
July 2004
Rev. 5
1/13
74LVQ74
Figure 2: Input And Output Equivalent Circuit
Table 2: Pin Description
PIN N°
SYMBOL
1, 13
1CLR, 2CLR
2, 12
3, 11
1D, 2D
1CK, 2CK
4, 10
1PR, 2PR
5, 9
6, 8
1Q, 2Q
1Q, 2Q
7
14
GND
VCC
NAME AND FUNCTION
Asynchronous Reset Direct Input
Data Inputs
Clock Input (LOW to
HIGH, Edge Triggered)
Asynchronous Set - Direct
Input
True Flip-Flop Outputs
Complement Flip-Flop
Outputs
Ground (0V)
Positive Supply Voltage
Table 3: 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
H
H
H
L
L
H
H
H
H
H
L
H
H
X
Qn
Qn
X : Don’t Care
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
2/13
CLEAR
PRESET
NO CHANGE
74LVQ74
Table 4: Absolute Maximum Ratings
Symbol
VCC
Parameter
Supply Voltage
Value
Unit
-0.5 to +7
V
VI
DC Input Voltage
-0.5 to VCC + 0.5
V
VO
DC Output Voltage
-0.5 to VCC + 0.5
± 20
V
mA
± 20
mA
IIK
DC Input Diode Current
IOK
DC Output Diode Current
IO
DC Output Current
ICC or IGND DC VCC or Ground Current
Storage Temperature
Tstg
TL
± 50
mA
± 400
mA
-65 to +150
°C
300
°C
Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
Table 5: Recommended Operating Conditions
Symbol
VCC
Parameter
Value
Unit
Supply Voltage (note 1)
2 to 3.6
V
VI
Input Voltage
0 to VCC
V
VO
Output Voltage
Top
Operating Temperature
dt/dv
Input Rise and Fall Time VCC = 3.0V (note 2)
0 to VCC
V
-55 to 125
°C
0 to 10
ns/V
1) Truth Table guaranteed: 1.2V to 3.6V
2) VIN from 0.8V to 2V
Table 6: DC Specifications
Test Condition
Symbol
VIH
VIL
VOH
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
TA = 25°C
VCC
(V)
Min.
Typ.
Max.
2.0
3.0 to
3.6
3.0
Value
Low Level Output
Voltage
3.0
-55 to 125°C
Min.
Min.
0.8
IO=-50 µA
2.9
IO=-12 mA
2.58
2.99
2.9
2.9
2.48
2.2
IO=50 µA
0.002
0.1
IO=12 mA
0
0.36
ICC
IOLD
IOHD
Input Leakage
Current
Quiescent Supply
Current
Dynamic Output
Current (note 1, 2)
V
0.8
2.48
Unit
Max.
2.0
0.8
IO=24 mA
II
Max.
2.0
IO=-24 mA
VOL
-40 to 85°C
V
V
2.2
0.1
0.1
0.44
0.44
0.55
0.55
V
3.6
VI = VCC or GND
± 0.1
±1
±1
µA
3.6
VI = VCC or GND
2
20
20
µA
3.6
VOLD = 0.8 V max
36
25
mA
VOHD = 2 V min
-25
-25
mA
1) Maximum test duration 2ms, one output loaded at time
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 75Ω
3/13
74LVQ74
Table 7: Dynamic Switching Characteristics
Test Condition
Symbol
VOLP
VOLV
VIHD
VILD
Parameter
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input (note
1, 3)
Dynamic Low
Voltage Input (note
1, 3)
Value
TA = 25°C
VCC
(V)
Min.
3.3
-0.8
3.3
Typ.
Max.
0.2
0.8
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
Unit
Max.
V
-0.2
2
V
CL = 50 pF
3.3
0.8
V
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 (VILD), 0V to threshold
(VIHD), f=1MHz.
Table 8: AC Electrical Characteristics (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
tPLH
tPHL
Propagation Delay
Time CK to Q
tPLH
tPHL
Propagation Delay
Time PR or CLR to
Q
Pulse Width CK,
HIGH or LOW
tw
tw(L)
ts
th
tREM
fMAX
tOSLH
tOSHL
Pulse Width PR or
CLR, LOW
Setup Time D to CK
HIGH or LOW
Hold Time D to CK
HIGH or LOW
Recovery Time PR
or CLR to Q
Maximum Clock
Frequency
Output To Output
Skew Time
(note1, 2)
VCC
(V)
Value
TA = 25°C
-55 to 125°C
Min.
Min.
Typ.
Max.
2.7
7.7
12.0
14.0
16.0
3.3(*)
6.3
9.0
10.5
12.0
2.7
6.9
12.0
14.0
16.0
3.3(*)
5.8
9.0
10.5
12.0
2.7
Min.
-40 to 85°C
Max.
4.0
1.5
4.0
5.0
(*)
3.0
1.5
3.0
4.0
4.0
1.5
4.0
5.0
(*)
3.3
2.7
3.0
1.5
3.0
4.0
4.0
-0.2
4.0
5.0
3.3(*)
2.7
3.0
-0.2
3.0
4.0
2.0
0.2
2.0
2.0
3.3(*)
2.0
0.2
2.0
2.0
2.7
1.0
-1.0
1.0
1.0
3.3(*)
1.0
-1.0
1.0
1.0
2.7
100
200
100
80
3.3(*)
120
250
120
100
3.3
2.7
2.7
3.3(*)
0.2
0.2
1.0
1.0
1.0
1.0
Unit
Max.
ns
ns
ns
ns
ns
ns
ns
MHz
1.0
1.0
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = |tPLHm - tPLHn|, tOSHL = |tPHLm - tPHLn|)
2) Parameter guaranteed by design
(*) Voltage range is 3.3V ± 0.3V
4/13
74LVQ74
Table 9: Capacitive Characteristics
Test Condition
Symbol
Parameter
TA = 25°C
VCC
(V)
CIN
Input Capacitance
3.3
CPD
Power Dissipation
Capacitance (note
1)
3.3
Value
Min.
fIN = 10MHz
Typ.
Max.
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
Unit
Max.
4
pF
33
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/n (per circuit)
Figure 4: Test Circuit
CL = 50pF or equivalent (includes jig and probe capacitance)
RL = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
5/13
74LVQ74
Figure 5: Waveform - Propagation Delays, Setup And Hold Times (f=1MHz; 50% duty cycle)
6/13
74LVQ74
Figure 6: Waveform - Propagation Delays (f=1MHz; 50% duty cycle)
Figure 7: Waveform - Pulse Width
7/13
74LVQ74
SO-14 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
inch
MAX.
MIN.
TYP.
MAX.
A
1.35
1.75
0.053
0.069
A1
0.1
0.25
0.004
0.010
A2
1.10
1.65
0.043
0.065
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
8.55
8.75
0.337
0.344
E
3.8
4.0
0.150
0.157
e
1.27
0.050
H
5.8
6.2
0.228
0.244
h
0.25
0.50
0.010
0.020
L
0.4
1.27
0.016
0.050
k
0°
8°
0°
8°
ddd
0.100
0.004
0016019D
8/13
74LVQ74
TSSOP14 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
0080337D
9/13
74LVQ74
Tape & Reel SO-14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
A
MAX.
MIN.
330
13.2
TYP.
MAX.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
10/13
TYP
0.504
22.4
0.519
0.882
Ao
6.4
6.6
0.252
0.260
Bo
9
9.2
0.354
0.362
Ko
2.1
2.3
0.082
0.090
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
74LVQ74
Tape & Reel TSSOP14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
A
TYP
MAX.
MIN.
330
MAX.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
TYP.
0.504
22.4
0.519
0.882
Ao
6.7
6.9
0.264
0.272
Bo
5.3
5.5
0.209
0.217
Ko
1.6
1.8
0.063
0.071
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
11/13
74LVQ74
Table 10: Revision History
Date
Revision
29-Jul-2004
5
12/13
Description of Changes
Ordering Codes Revision - pag. 1.
74LVQ74
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.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
© 2004 STMicroelectronics - All Rights Reserved
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13/13
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