HD74LVC574A
Octal D-type Flip Flops with 3-state Outputs
REJ03D0361–0400Z
(Previous ADE-205-117B (Z))
Rev.4.00
Jul. 29, 2004
Description
The HD74LVC574A has eight edge trigger D type flip flops with three state outputs in a 20 pin package. Data at the D
inputs meeting set up requirements are transferred to the Q outputs on positive going transitions of the clock input.
When the clock input goes low, data at the D inputs will be retained at the outputs until clock input returns high again.
When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of
what signals are present at the other inputs and the state of the storage elements. Low voltage and high-speed operation
is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a
battery for long time operation.
Features
•
•
•
•
•
•
•
V
CC
= 2.0 V to 5.5 V
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All outputs V
OUT
(Max.) = 5.5 V (@V
CC
= 0 V or output off state)
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25°C)
Typical V
OH
undershoot > 2.0 V (@V
CC
= 3.3 V, Ta = 25°C)
High output current ±24 mA (@V
CC
= 3.0 V to 5.5 V)
Ordering Information
Package Type
SOP–20 pin (JEITA)
TSSOP–20 pin
Package Code
FP–20DAV
TTP–20DAV
Package
Abbreviation
FP
T
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Part Name
HD74LVC574AFPEL
HD74LVC574ATELL
Note: Please consult the sales office for the above package availability.
Function Table
Inputs
OC
L
L
L
H
H:
L:
X:
Z:
↑
:
Q
0
:
CK
↑
↑
L
X
D
H
L
X
X
Output Q
H
L
Q
0
Z
High level
Low level
Immaterial
High impedance
Low to high transition
Level of Q before the indicated steady input conditions were established.
Rev.4.00 Jul. 29, 2004 page 1 of 7
HD74LVC574A
Pin Arrangement
OC 1
1D 2
2D 3
3D 4
4D 5
5D 6
6D 7
7D 8
8D 9
GND 10
D Q
CK
D Q
CK
D Q
CK
D Q
CK
D Q
CK
D Q
CK
D Q
CK
D Q
CK
20 V
CC
19 1Q
18 2Q
17 3Q
16 4Q
15 5Q
14 6Q
13 7Q
12 8Q
11 CK
(Top view)
Absolute Maximum Ratings
Item
Supply voltage
Input diode current
Input voltage
Output diode current
Output voltage
Output current
V
CC
, GND current / pin
Storage temperature
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
or I
GND
Tstg
Ratings
–0.5 to 6.0
–50
–0.5 to 6.0
–50
50
–0.5 to V
CC
+0.5
–0.5 to 6.0
±50
100
–65 to +150
Unit
V
mA
V
mA
V
mA
mA
°C
Conditions
V
I
= –0.5 V
V
O
= –0.5 V
V
O
= V
CC
+0.5 V
Output "H" or "L"
Output "Z" or V
CC
:OFF
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Rev.4.00 Jul. 29, 2004 page 2 of 7
HD74LVC574A
Recommended Operating Conditions
Item
Supply voltage
Input / output voltage
Symbol
V
CC
V
I
V
O
Ta
I
OH
I
OL
Input rise / fall time
*1
t
r
, t
f
Ratings
1.5 to 5.5
2.0 to 5.5
0 to 5.5
0 to V
CC
0 to 5.5
–40 to 85
–12
–24*
2
12
24
*2
10
Unit
V
V
V
°C
mA
mA
ns/V
Conditions
Data hold
At operation
OC,
CK, D
Output "H" or "L"
Output "Z" or V
CC
:OFF
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 5.5 V
Operating temperature
Output current
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
2. Duty cycle
≤
50%
Electrical Characteristics
Ta = –40 to 85°C
Item
Input voltage
Symbol
V
IH
V
IL
Output voltage
V
OH
V
CC
(V)
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 5.5
2.7
3.0
3.0
4.5
2.7 to 5.5
2.7
3.0
4.5
0 to 5.5
2.7 to 5.5
0
2.7 to 3.6
2.7 to 5.5
3.0 to 3.6
Min
2.0
V
CC
×0.7
—
—
V
CC
–0.2
2.2
2.4
2.2
3.8
—
—
—
—
—
—
—
—
—
—
Max
—
—
0.8
V
CC
×0.3
—
—
—
—
—
0.2
0.4
0.55
0.55
±5.0
±5.0
20
±10
10
500
Unit
V
V
V
I
OH
= –100
µA
I
OH
= –12 mA
I
OH
= –24 mA
V
I
OL
= 100
µA
I
OL
= 12 mA
I
OL
= 24 mA
V
IN
= 5.5 V or GND
V
IN
= V
CC
, GND
V
OUT
= 5.5 V or GND
V
IN
/ V
OUT
= 5.5 V
V
IN
/ V
OUT
= 3.6 to 5.5 V
V
IN
= V
CC
or GND
V
IN
= one input at(V
CC
–0.6)V,
other inputs at V
CC
or GND
Test Conditions
V
OL
Input current
Off state output current
Output leak current
Quiescent supply current
I
IN
I
OZ
I
OFF
I
CC
∆I
CC
µA
µA
µA
µA
µA
Rev.4.00 Jul. 29, 2004 page 3 of 7
HD74LVC574A
Switching Characteristics
Ta = –40 to 85°C
Item
Maximum clock frequency
Symbol
f
max
V
CC
(V)
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
3.3±0.3
5.0±0.5
2.7
2.7
Min
80.0
100.0
125.0
—
1.5
—
—
1.5
—
—
1.5
—
2.0
2.0
2.0
1.5
1.5
1.5
3.3
3.3
3.3
—
—
—
—
—
Typ
—
150.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3.0
15.0
Max
—
—
—
9.5
8.5
7.0
9.5
8.5
7.0
8.5
7.5
6.5
—
—
—
—
—
—
—
—
—
—
1.0
1.0
—
—
Unit
MHz
From
(Input)
To
(Output)
Propagation delay time
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
t
su
ns
CK
Q
Output enable time
ns
OC
Q
Output disable time
ns
OC
Q
Setup time
ns
Hold time
t
h
ns
Pulse width
t
w
ns
Between output
pins skew
*1
Input capacitance
Output capacitance
Note:
t
OSLH
t
OSHL
C
IN
C
O
ns
pF
pF
1. This parameter is characterized but not tested.
tos
LH
= | t
PLHm
- t
PLHn
|, tos
HL
= | t
PHLm
- t
PHLn
|
Rev.4.00 Jul. 29, 2004 page 4 of 7
HD74LVC574A
Test Circuit
V
CC
V
CC
Output
OC
Input
1Q to 8Q
C
L
=
50 pF
1D to 8D
Symbol
t
PLH
/ t
PHL
CK
t
su
/ t
h
/ t
w
t
ZH
/ t
HZ
t
ZL
/ t
LZ
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
500
Ω
S1
450
Ω
50
Ω
Scope
OPEN
*1
See under table
See Function Table
GND
Pulse generator
Z
out
= 50
Ω
Input
Pulse generator
Z
out
= 50
Ω
OPEN
GND
6V
OPEN
GND
2×Vcc
Note:
1. C
L
includes probe and jig capacitance.
Waveforms – 1
t
r
Input CK
10 %
t
r
Input D
90 %
10 %
t
PLH
Output Q
V
ref
90 % 90 %
V
ref
10 %
t
f
90 %
10 %
t
PHL
V
ref
V
OL
t
f
V
IH
V
ref
GND
V
IH
GND
V
OH
Rev.4.00 Jul. 29, 2004 page 5 of 7
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