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HD74LVC574A
Octal D-type Flip Flops with 3-state Outputs
ADE-205-117B(Z)
3rd Edition
December 1996
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
• VCC = 2.0 V to 5.5 V
• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
• All outputs V
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@VCC = 3.0 V to 5.5 V)
(Max.) = 5.5 V (@VCC = 0 V or output off state)
OUT
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HD74LVC574A
Function Table
Inputs
OC CK D Output Q
L ↑ HH
L↑LL
LLXQ
HXXZ
H : High level
L : Low level
X : Immaterial
Z : High impedance
↑ : Low to high transition
Q
: Level of Q before the indicated steady input conditions were established.
0
Pin Arrangement
0
OC
1D
2D
3D
4D
5D
6D
7D
8D
GND
10
V
1
D
2
3
4
5
6
7
8
9
Q
CK
D
Q
CK
D
Q
CK
D
Q
CK
D
Q
CK
D
Q
CK
D
Q
CK
D
Q
CK
20
19
18
17
16
15
14
13
12
11
CC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
CK
(Top view)
2
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HD74LVC574A
Absolute Maximum Ratings
Item Symbol Ratings Unit Conditions
Supply voltage V
Input diode current I
Input voltage V
Output diode current I
Output voltage V
Output current I
VCC, GND current / pin ICC or I
CC
IK
I
OK
O
O
GND
Storage temperature Tstg –65 to +150 °C
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.
Recommended Operating Conditions
–0.5 to 6.0 V
–50 mA VI = –0.5 V
–0.5 to 6.0 V
–50 mA VO = –0.5 V
50 mA VO = VCC+0.5 V
–0.5 to VCC +0.5 V Output "H" or "L"
–0.5 to 6.0 V Output "Z" or VCC:OFF
±50 mA
100 mA
Item Symbol Ratings Unit Conditions
Supply voltage V
CC
1.5 to 5.5 V Data hold
2.0 to 5.5 V At operation
Input / output voltage V
I
V
O
0 to 5.5 V OC, CK, D
0 to V
CC
V Output "H" or "L"
0 to 5.5 V Output "Z" or VCC:OFF
Operating temperature Ta –40 to 85 °C
Output current I
Input rise / fall time
*1
OH
I
OL
tr, t
f
–12 mA VCC = 2.7 V
2
–24*
mA VCC = 3.0 V to 5.5 V
12 mA VCC = 2.7 V
*2
24
mA VCC = 3.0 V to 5.5 V
10 ns/V
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform : Refer to test circuit of switching characteristics.
2. duty cycle ≤ 50%
3
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HD74LVC574A
Electrical Characteristics
Item Symbol V
Input voltage V
Output voltage V
Input current I
Off state output current I
Output leak current I
Quiescent supply current I
V
V
∆I
IH
IL
OH
OL
IN
OZ
OFF
CC
CC
Ta = –40 to 85°C
(V) Min Max Unit Test Conditions
CC
2.7 to 3.6 2.0 — V
4.5 to 5.5 VCC×0.7 — V
2.7 to 3.6 — 0.8 V
4.5 to 5.5 — VCC×0.3 V
2.7 to 5.5 VCC–0.2 — V IOH = –100 µA
2.7 2.2 — V IOH = –12 mA
3.0 2.4 — V
3.0 2.2 — V IOH = –24 mA
4.5 3.8 — V
2.7 to 5.5 — 0.2 V IOL = 100 µA
2.7 — 0.4 V IOL = 12 mA
3.0 — 0.55 V IOL = 24 mA
4.5 — 0.55 V
0 to 5.5 — ±5.0 µAVIN = 5.5 V or GND
2.7 to 5.5 — ±5.0 µAVIN = VCC, GND
V
= 5.5 V or GND
OUT
0—20µAVIN / V
2.7 to 3.6 — ±10 µAVIN / V
= 5.5 V
OUT
= 3.6 to 5.5 V
OUT
2.7 to 5.5 — 10 µAVIN = VCC or GND
3.0 to 3.6 — 500 µAVIN = one input at(VCC–0.6)V,
other inputs at V
or GND
CC
4
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Switching Characteristics
Ta = –40 to 85°C
Item Symbol V
Maximum clock
f
max
frequency
Propagation delay time t
Output enable time t
Output disable time t
Setup time t
Hold time t
Pulse width t
Between output
pins skew
*1
Input capacitance C
Output capacitance C
PLH
t
PHL
ZH
t
ZL
HZ
t
LZ
su
h
w
t
OSLH
t
OSHL
IN
O
Note: 1. This parameter is characterized but not tested.
tos
LH
= | t
PLHm
- t
PLHn
|, tosHL = | t
(V) Min Typ Max Unit From (Input) To (Output)
CC
2.7 80.0 — — MHz
3.3±0.3 100.0 150.0 — MHz
5.0±0.5 125.0 — — MHz
2.7 — — 9.5 ns CK Q
3.3±0.3 1.5 — 8.5 ns
5.0±0.5 — — 7.0 ns
2.7 — — 9.5 ns OC Q
3.3±0.3 1.5 — 8.5 ns
5.0±0.5 — — 7.0 ns
2.7 — — 8.5 ns OC Q
3.3±0.3 1.5 — 7.5 ns
5.0±0.5 — — 6.5 ns
2.7 2.0 — — ns
3.3±0.3 2.0 — — ns
5.0±0.5 2.0 — — ns
2.7 1.5 — — ns
3.3±0.3 1.5 — — ns
5.0±0.5 1.5 — — ns
2.7 3.3 — — ns
3.3±0.3 3.3 — — ns
5.0±0.5 3.3 — — ns
2.7 ———ns
3.3±0.3 — — 1.0 ns
5.0±0.5 — — 1.0 ns
2.7 — 3.0 — pF
2.7 — 15.0 — pF
- t
PHLn
|
PHLm
HD74LVC574A
5
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HD74LVC574A
Test Circuit
OC
V
CC
1Q to 8Q
V
CC
Input
Pulse generator
Z = 50
out
Ω
1D to 8D
Input
See Function Table
Pulse generator
CK
Z = 50
out
Ω
Note: 1. CL includes probe and jig capacitance.
Waveforms – 1
t
r
90 %
90 %
90 %
V
ref
Input CK
Input D
10 %
t
r
Output
t
f
90 %
C =
50 pF
10 %
t
L
f
Ω
50 Scope
Symbol
t / t
PLH PHL
t / t / t
su h w
t / t
ZH HZ
t / t
ZL LZ
500
V
Ω
450
ref
S1
Ω
Vcc=2.7V,
3.3±0.3V
OPEN
GND
6 V
OPEN
*1
See under table
GND
S1
Vcc=5.0±0.5V
OPEN
GND
2×Vcc
V
IH
GND
V
IH
6
Output Q
10 %
t
PLH
10 %
t
PHL
V
ref
V
ref
GND
V
OH
V
OL
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Waveforms – 2
HD74LVC574A
Input CK
10 %
t
s
Input D
V
ref
Waveforms – 3
t
f
90 %
Input OC
Waveform - A
Waveform - B
Notes: 1. tr = 2.5 ns, tf = 2.5 ns
2. Input waveform : PRR = 10 MHz, duty cycle 50%
3. Waveform – A shows input conditions such that the output is "L" level when enable by the
output control.
4. Waveform – B shows input conditions such that the output is "H" level when enable by the
output control.
V
ref
10 %
t
r
V
t
ZL
t
ZH
90 % 90 %
ref
t
w
t
V
ref
V
ref
t
f
V
IH
V
ref
10 %
t
w
h
V
ref
V
ref
GND
V
IH
GND
t
r
V
GND
≈V
V
V
≈V
50%Vcc
Vcc
GND
IH
OH1
OL
OH
OL1
90 %
V
ref
10 %
t
t
HZ
LZ
TEST
V
IH
V
ref
V
OH1
V
OL1
V + 0.3 V
OL
V – 0.3 V
OH
Vcc=2.7V,
3.3±0.3V
2.7 V Vcc
1.5 V
3 V
GND
Vcc=5.0±0.5V
7
Page 8
20 11
110
+0.08
*0.22
–0.07
0.20 ± 0.06
6.50
6.80 Max
0.65 Max
0.65
0.13
Unit: mm
4.40
1.0
M
6.40 ± 0.20
0.10
1.10 Max
*Dimension including the plating thickness
Base material dimension
0.15 ± 0.04
*0.17 ± 0.05
+0.03
–0.04
0.07
0° – 8°
Hitachi Code
JEDEC
EIAJ
(reference value)
Weight
0.50 ± 0.10
TTP-20DA
—
—
0.07 g
Page 9
Cautions
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intellectual property rights, in connection with use of the information contained in this document.
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received the latest product standards or specifications before final design, purchase or use.
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contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
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products.
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