HITACHI HD74LVC74

HD74LVC74
Dual D-type Flip Flops with Preset and Clear
ADE-205-066C(Z)
Rev.3
September 1995
Description
The HD74LVC74 has independent data, preset, clear, and clock inputs Q and Q outputs in a 14 pin
package. The logic level present at the data input is transferred to the output during the positive going
transition of the clock pulse. Preset and clear are independent of the clock and accomplished by a low level
at the appropriate input. 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)
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)
HD74LVC74
Function Table
Inputs
Outputs
PR
CLR
CK
D
Q
Q
L
H
X
X
H
L
H
L
X
X
L
H
*1
H *1
L
L
X
X
H
H
H
↑
H
H
L
H
H
↑
L
L
H
H
H
L
X
Q0
Q0
H
H
H
X
Q0
Q0
H
H
↓
X
Q0
Q0
H:
L:
X:
↓:
↑:
Q0:
Note:
High level
Low level
Immaterial
High to Low transition
Low to high transition
Level to Q before the indicated steady input conditions were established.
1. Q and Q will remain high as long as preset and clear are low, but Q and Q are unpredictable, if
preset and clear go high simultaneously.
Pin Arrangement
1CLR
14 VCC
1
1D 2
CK
D
13
2CLR
PR CLR
1CK
3
Q
Q
1PR 4
1Q 5
1Q 6
11 2CK
D
CK
CLR PR
Q
Q
GND 7
10 2PR
9 2Q
8 2Q
(Top view)
2
12 2D
HD74LVC74
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
VCC
–0.5 to 6.0
V
Input diode current
I IK
–50
mA
Input voltage
VI
–0.5 to 6.0
V
Output diode current
I OK
–50
mA
VO = –0.5 V
50
mA
VO = VCC +0.5 V
Output voltage
VO
–0.5 to VCC +0.5 V
Output current
IO
±50
mA
VCC, GND current / pin
I CC or IGND
100
mA
Storage temperature
Tstg
–65 to +150
°C
Conditions
VI = –0.5 V
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
Item
Symbol
Ratings
Unit
Conditions
Supply voltage
VCC
1.5 to 5.5
V
Data retention
2.0 to 5.5
V
At operation
VI
0 to 5.5
V
PR, CLR, CK, D
VO
0 to V CC
V
Q, Q
Operating temperature
Ta
–40 to 85
°C
Output current
I OH
–12
mA
VCC = 2.7 V
mA
VCC = 3.0 V to 5.5 V
mA
VCC = 2.7 V
mA
VCC = 3.0 V to 5.5 V
Input / output voltage
–24
I OL
12
24
Input rise / fall time
*1
t r , tf
10
*2
*2
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
HD74LVC74
Electrical Characteristics
Ta = –40 to 85°C
Item
Symbol VCC (V)
Min
Max
Unit Test Conditions
Input voltage
VIH
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
I OH = –100 µA
2.7
2.2
—
V
I OH = –12 mA
3.0
2.4
—
V
3.0
2.0
—
V
4.5
3.8
—
V
2.7 to 5.5
—
0.2
V
I OL = 100 µA
2.7
—
0.4
V
I OL = 12 mA
3.0
—
0.55
V
I OL = 24 mA
4.5
—
0.55
V
0 to 5.5
—
±5.0
µA
VIN = 5.5 V or GND
5.5
—
20
µA
VIN = VCC or GND
3.0 to 3.6
—
500
µA
VIN = one input at (VCC –0.6)V,
other inputs at V CC or GND
VIL
Output voltage
VOH
VOL
Input current
I IN
Quiescent supply current I CC
∆I CC
4
I OH = –24 mA
HD74LVC74
Switching Characteristics
Ta = –40 to 85°C
Item
Symbol
Max
Unit From (Input)
150.0 —
—
MHz
3.3±0.3
150.0 —
—
MHz
5.0±0.5
150.0 —
—
MHz
t PLH
2.7
—
6.0
9.0
ns
t PHL
3.3±0.3
1.5
5.0
8.0
ns
5.0±0.5
—
4.0
6.5
ns
t PLH
2.7
—
6.5
9.0
ns
t PHL
3.3±0.3
1.5
5.0
8.0
ns
5.0±0.5
—
4.0
6.5
ns
2.7
4.0
—
—
ns
3.3±0.3
3.0
—
—
ns
5.0±0.5
3.0
—
—
ns
2.7
2.0
—
—
ns
3.3±0.3
2.0
—
—
ns
5.0±0.5
2.0
—
—
ns
2.7
4.0
—
—
ns
3.3±0.3
4.0
—
—
ns
5.0±0.5
4.0
—
—
ns
2.7
6.0
—
—
ns
3.3±0.3
5.0
—
—
ns
5.0±0.5
4.0
—
—
ns
2.7
3.0
—
—
ns
3.3±0.3
2.0
—
—
ns
5.0±0.5
2.0
—
—
ns
Maximum clock frequency f max
Propagation delay time
Setup time
Hold time
Pulse width
Recovery time
t su
th
tw
t rec
VCC (V)
Min
2.7
Typ
Input capacitance
CIN
2.7
—
3.0
—
pF
Output capacitance
CO
2.7
—
15.0
—
pF
To (Output)
CLK
Q, Q
PR or CLR
Q, Q
CK
PR or CLR
5
HD74LVC74
Test Circuit
VCC
Pulse Generator
Zout = 50 Ω
Input
Pulse Generator
Zout = 50 Ω
Notes:
6
1.
2.
See Function Table
Input
PR
D
Output Q
Q
CL =
50 pF
CK
CLR
CL includes probe and jig capacitance.
Test is put into the each flip flops.
450 Ω
50 Ω Scope
Output Q
Q
CL =
50 pF
450 Ω
50 Ω Scope
HD74LVC74
Waveforms
tf
Input CLR
tr
90 %
Vref
10 %
VIH
90 %
Vref
10 %
GND
tw
tf
tr
VIH
90 %
Vref
Input PR
t rec
tf
tr
90 %
Vref
10 %
Input CK
90 %
Vref
10 %
t s (H)
90 %
Vref
10 %
Input D
tr
t w (H)
t w (L)
Vref
Vref
90 %
Vref
10 % 10 %
tw
GND
t rec
VIH
Vref
Vref
GND
t h (H)
t s (L)
t h (L)
VIH
90 %
Vref
10 %
Vref
Vref
GND
tf
t PHL
t PLH
t PHL
t PLH
VOH
Output Q
Vref
Vref
Vref
Vref
VOL
t PLH
t PHL
Vref
Vref
t PLH
t PHL
VOH
Output Q
Vref
Vref
VOL
Symbol
VIH
Vref
Notes:
1.
2.
3.
VCC = 2.7 V,
3.3±0.3 V VCC = 5.0±0.5 V
2.7 V
VCC
1.5 V
50%VCC
t r = 2.5 ns, tf = 2.5 ns
Clock pulse input waveform : PRR = 10 MHz, duty cycle 50%
Data input waveform : PRR = 5 MHz, duty cycle 50%
7
Unit: mm
4.40
5.00
5.30 Max
14
8
1
7
0.65
0.20 ± 0.06
1.0
0.13 M
6.40 ± 0.20
0.10
*Dimension including the plating thickness
Base material dimension
*0.17 ± 0.05
0.15 ± 0.04
1.10 Max
0.83 Max
0.07 +0.03
–0.04
*0.22+0.08
–0.07
0° – 8°
0.50 ± 0.10
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
TTP-14D
—
—
0.05 g
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
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.
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written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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