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HD74LV374A
Octal Edge-Triggered D-type Flip-Flops with 3-state Outputs
ADE-205-275 (Z)
1st Edition
April 1999
Description
The HD74LV374A 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 for the battery-powered
products (e.g., notebook computers), and the low-power consumption extends the battery life.
Features
• VCC = 2.0 V to 5.5 V operation
• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
• All outputs VO (Max.) = 5.5 V (@VCC = 0 V)
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C)
• Output current ±8 mA (@VCC = 3.0 V to 3.6 V), ±16 mA (@VCC = 4.5 V to 5.5 V)
Function Table
Inputs
OE CLK D Output Q
HXXZ
L ↑ LL
L ↑ HH
L ↓ XQ
Note: H: High level
L: Low level
X: Immaterial
Z: High impedance
Q
: Output level before the indicated steady state input conditions were established.
0
0
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HD74LV374A
Pin Arrangement
OE
V
1
20
CC
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
10
2
3
4
5
6
7
8
9
(Top view)
19
18
17
16
15
14
13
12
11
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
2
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HD74LV374A
Absolute Maximum Ratings
Item Symbol Ratings Unit Conditions
Supply voltage range V
Input voltage range*
Output voltage range*
1
1, 2
Input clamp current I
Output clamp current I
Continuous output current I
Continuous current through
V
or GND
CC
Maximum power dissipation
at Ta = 25°C (in still air)*
3
CC
V
I
V
O
IK
OK
O
or I
I
CC
GND
P
T
Storage temperature Tstg –65 to 150 °C
Notes: 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.
1. The input and output voltage ratings may be exceeded if the input and output clamp-current
ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The maximum package power dissipation was calculated using a junction temperature of 150°C.
–0.5 to 7.0 V
–0.5 to 7.0 V
–0.5 to VCC + 0.5 V Output: H or L
–0.5 to 7.0 VCC: OFF or Output: Z
–20 mA VI < 0
±50 mA VO < 0 or VO > V
±35 mA VO = 0 to V
CC
CC
±70 mA
835 mW SOP
757 TSSOP
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HD74LV374A
Recommended Operating Conditions
Item Symbol Min Max Unit Conditions
Supply voltage range V
Input voltage range V
Output voltage range V
Output current I
CC
I
O
OH
I
OL
Input transition rise or fall rate ∆t /∆v 0 200 ns/V VCC = 2.3 to 2.7 V
Operating free-air temperature Ta –40 85 °C
Note: Unused or floating inputs must be held high or low.
2.0 5.5 V
0 5.5 V
0VCCV H or L
0 5.5 High impedance state
— –50 µAV
—–2 mAV
—–8 V
= 2.0 V
CC
= 2.3 to 2.7 V
CC
= 3.0 to 3.6 V
CC
— –16 VCC = 4.5 to 5.5 V
—50 µAV
= 2.0 V
CC
— 2 mA VCC = 2.3 to 2.7 V
—8 V
—16 V
= 3.0 to 3.6 V
CC
= 4.5 to 5.5 V
CC
0 100 VCC = 3.0 to 3.6 V
020 V
= 4.5 to 5.5 V
CC
Logic Diagram
OE
CLK
1D
1
11
C1
3
1D
To Seven Other Channels
2
1Q
4
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HD74LV374A
DC Electrical Characteristics
• Ta = –40 to 85°C
Item Symbol VCC (V)* Min Typ Max Unit Test Conditions
Input voltage V
Output voltage V
Input current I
Off-state
IH
V
IL
OH
V
OL
IN
I
OZ
output current
Quiescent
I
CC
supply current
Output leakage
I
OFF
current
Input
C
IN
capacitance
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
2.0 1.5 — — V
2.3 to 2.7 VCC × 0.7 — —
3.0 to 3.6 VCC × 0.7 — —
4.5 to 5.5 VCC × 0.7 — —
2.0 — — 0.5
2.3 to 2.7 — — VCC × 0.3
3.0 to 3.6 — — VCC × 0.3
4.5 to 5.5 — — VCC × 0.3
Min to
VCC – 0.1 — — V IOH = –50 µA
Max
2.3 2.0 — — IOH = –2 mA
3.0 2.48 — — IOH = –8 mA
4.5 3.8 — — IOH = –16 mA
Min to
— — 0.1 IOL = 50 µA
Max
2.3 — — 0.4 IOL = 2 mA
3.0 — — 0.44 IOL = 8 mA
4.5 — — 0.55 IOL = 16 mA
0 to 5.5 — — ±1 µAVIN = 5.5 V or GND
5.5 — — ±5 µAVO = VCC or GND
5.5 — — 20 µAVIN = VCC or GND, IO = 0
0——5 µAVI or VO = 0 to 5.5 V
3.3 — 2.9 — pF VI = VCC or GND
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HD74LV374A
Switching Characteristics
• VCC = 2.5 ± 0.2 V
Ta = 25°C Ta = –40 to 85°C
Item Symbol Min Typ Max Min Max Unit Test Conditions
Maximum
clock
frequency
Propagation
delay
time
Enable t
time t
Disable t
time t
Setup
time
Hold
time
Pulse
width
t
max
60 105 — 50 — MHz CL = 15 pF
50 85 — 40 — CL = 50 pF
t
PLH
t
PHL
ZH
ZL
HZ
LZ
t
SU
t
h
t
w
— 9.7 16.3 1.0 19.0 ns CL = 15 pF CLK Q
— 11.8 19.3 1.0 23.0 CL = 50 pF
— 8.9 15.9 1.0 19.0 ns CL = 15 pF OE Q
— 10.9 18.8 1.0 22.0 CL = 50 pF
— 6.3 12.6 1.0 15.0 ns CL = 15 pF OE Q
— 8.2 17.3 1.0 19.0 CL = 50 pF
5.0 — — 5.5 — ns Data before CLK ↑
2.5 — — 2.5 — ns Data after CLK ↑
6.0 — — 7.0 — ns CLK: "H" or "L"
FROM
(Input)TO(Output)
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Switching Characteristics (cont)
• VCC = 3.3 ± 0.3 V
Ta = 25°C Ta = –40 to 85°C
Item Symbol Min Typ Max Min Max Unit Test Conditions
Maximum
clock
frequency
Propagation
delay
time
Enable t
time t
Disable t
time t
Setup
time
Hold
time
Pulse
width
t
max
80 150 — 70 — MHz CL = 15 pF
55 110 — 50 — CL = 50 pF
t
PLH
t
PHL
ZH
ZL
HZ
LZ
t
SU
t
h
t
w
— 6.8 12.7 1.0 15.0 ns CL = 15 pF CLK Q
— 8.3 16.2 1.0 18.5 CL = 50 pF
— 6.3 11.0 1.0 13.0 ns CL = 15 pF OE Q
— 7.7 14.5 1.0 16.5 CL = 50 pF
— 4.7 10.5 1.0 12.5 ns CL = 15 pF OE Q
— 5.9 14.0 1.0 16.0 CL = 50 pF
4.5 — — 4.5 — ns Data before CLK ↑
2.0 — — 2.0 — ns Data after CLK ↑
5.0 — — 5.5 — ns CLK: "H" or "L"
HD74LV374A
FROM
(Input)TO(Output)
7
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HD74LV374A
Switching Characteristics (cont)
• VCC = 5.0 ± 0.5 V
Ta = 25°C Ta = –40 to 85°C
Item Symbol Min Typ Max Min Max Unit Test Conditions
Maximum
clock
frequency
Propagation
delay
time
Enable t
time t
Disable t
time t
Setup
time
Hold
time
Pulse
width
t
max
130 205 — 110 — MHz CL = 15 pF
85 170 — 75 — CL = 50 pF
t
PLH
t
PHL
ZH
ZL
HZ
LZ
t
SU
t
h
t
w
— 4.9 8.1 1.0 9.5 ns CL = 15 pF CLK Q
— 5.9 10.1 1.0 11.5 CL = 50 pF
— 4.6 7.6 1.0 9.0 ns CL = 15 pF OE Q
— 5.5 9.6 1.0 11.0 CL = 50 pF
— 3.4 6.8 1.0 8.0 ns CL = 15 pF OE Q
— 4.0 8.8 1.0 10.0 CL = 50 pF
3.0 — — 3.0 — ns Data before CLK ↑
2.0 — — 2.0 — ns Data after CLK ↑
5.0 — — 5.0 — ns CLK: "H" or "L"
FROM
(Input)TO(Output)
8
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HD74LV374A
Output-skew Characteristics
• CL = 50 pF
Ta = 25°C Ta = –40 to 85°C
Item Symbol V
Output skew t
sk (O)
Note: Skew between any outputs of the same package switching in the same direction. This parameter is
warranted but not production tested.
Operating Characteristics
• CL = 50 pF
Item Symbol V
Power
dissipation
capacitance
C
PD
= (V) Min Max Min Max Unit
CC
2.3 to 2.7 — 2.0 — 2.0 ns
3.0 to 3.6 — 1.5 — 1.5
4.5 to 5.5 — 1.0 — 1.0
Ta = 25°C
= (V) Min Typ Max Unit Test Conditions
CC
3.3 — 21.1 — pF f = 10 MHz
5.0 — 22.8 —
Noise Characteristics
• CL = 50 pF
Item Symbol V
Quiet output,
maximum
dynamic V
Quiet output,
minimum
dynamic V
Quiet output,
minimum
dynamic V
High-level
dynamic
input voltage
Low-level
dynamic
input voltage
V
OL (P)
OL
V
OL (V)
OL
V
OH (V)
OH
V
IH (D)
V
IL (D)
Ta = 25°C
= (V) Min Typ Max Unit Test Conditions
CC
3.3 — 0.6 0.8 V
3.3 — –0.5 –0.8
3.3 — 2.9 —
3.3 2.31 — —
3.3 — — 0.99
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HD74LV374A
Test Circuit
Output
1 kΩ
S2
OPEN
GND
C
L
TEST
t /t
PLH PHL
t /t
ZH HZ
t /t
ZL LZ
Note: C includes the probe and jig capacitance.
L
V
CC
S2
OPEN
GND
V
CC
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HD74LV374A
• Waveform – 1
Input CLK
Input D
Output Q
• Waveform – 2
Input CLK
Input D
• Waveform – 3
Input OE
Waveform – A
Waveform – B
50 %V
90 %
50 %V
CC
10 %
50 %V
10 %
t
r
10 %
10 %
CC
t
f
CC
90 %
50 %V
t
su
t
50 %V
t
t
r
90 %
t
PLH
t
r
90 % 90 %
50 %
V
CC
ZL
ZH
CC
CC
90 %
50 %
V
t
w
t
h
50 %V
CC
t
f
90 %
t
f
CC
10 %
10 %
10 %
t
r
t
f
t
w
50 %V
90 %
50 %V
10 %
t
HZ
V
CC
50 %V
CC
GND
V
CC
t
PHL
50 %V
50 %V
CC
CC
GND
V
OH
V
OL
V
CC
GND
V
CC
CC
GND
V
CC
CC
t
LZ
V + 0.3 V
OL
V – 0.3 V
OH
GND
V
CC
V
OL
V
OH
GND
Notes:
1. tr ≤ 3 ns, tf ≤ 3 ns
2. Input waveform: PRR ≤ 1 MHZ, duty cycle 50%
Waveform-A is for an output with internal conditions such that the output is low except
3.
when disabled by the output control.
4.
Waveform-B is for an output with internal conditions such that the output is high except
when disabled by the output control.
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HD74LV374A
Package Dimensions
12.6
13 Max
20
1
0.80 Max
1.27
0.42 ± 0.08
0.40 ± 0.06
Dimension including the plating thickness
Base material dimension
11
10
0.12
5.5
0.10 ± 0.10
0.15
M
2.20 Max
7.80
0.22 ± 0.05
0.20 ± 0.04
0.70 ± 0.20
Hitachi Code
JEDEC
EIAJ
Weight
(reference value)
+ 0.20
– 0.30
1.15
0° – 8°
FP-20DA
—
Conforms
0.31 g
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20
HD74LV374A
Unit: mm
12.8
13.2 Max
11
7.50
1
0.935 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
*Dimension including the plating thickness
Base material dimension
10
0.12
0.20 ± 0.10
0.15
2.65 Max
M
10.40
0.25 ± 0.04
*0.27 ± 0.05
0.70
Hitachi Code
JEDEC
EIAJ
Weight
(reference value)
+ 0.25
– 0.40
1.45
+ 0.57
– 0.30
0° – 8°
FP-20DB
Conforms
—
0.52 g
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HD74LV374A
+0.08
0.22
–0.07
0.20 ± 0.06
6.50
6.80 Max
20 11
4.40
110
0.65
0.13
M
0.65 Max
1.0
6.40 ± 0.20
0.10
1.10 Max
Dimension including the plating thickness
Base material dimension
0.17 ± 0.05
0.15 ± 0.04
+0.03
–0.04
0.07
0° – 8°
Hitachi Code
JEDEC
EIAJ
(reference value)
Weight
0.50 ± 0.10
TTP-20DA
—
—
0.07 g
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Page 15
Cautions
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copyright, trademark, or other intellectual property rights for information contained in this document.
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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.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
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.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.
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