Datasheet HD74LVC74 Datasheet (HIT)

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

LHXXH L
HLXXL H
LL XXH *1H
HH↑HH L
HH↑LL H
HHLXQ
HHHXQ
HH↓XQ

0

0

0

H : High level
L : Low level
X : Immaterial

↓ : High to Low transition
↑ : Low to high transition

Q

: Level to Q before the indicated steady input conditions were established.

0

Note: 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.

*1

Q

0

Q

0

Q

0

Pin Arrangement

1CLR

1D

1CK

1PR

1Q
1Q

GND

1

D

2
3

CK

PR CLR

QQ

4
5

6

D

CK

CLR PR

QQ

7

14
13
12
11
10

V

CC

2CLR

2D

2CK
2PR
2Q

9
8

2Q

(Top view)

2

HD74LVC74

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 I

IK

OK

O

CC

CC

I

O

or I

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 = V
–0.5 to V

+0.5 V

CC

±50 mA
100 mA

GND

+0.5 V

CC

Item Symbol Ratings Unit Conditions

Supply voltage V

CC

1.5 to 5.5 V Data retention

2.0 to 5.5 V At operation

Input / output voltage V

I

V

O

0 to 5.5 V PR, CLR, CK, D
0 to V

CC

V Q, Q
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

HD74LVC74

Electrical Characteristics

Item Symbol V

Input voltage V

Output voltage V

Input current I
Quiescent supply current I

V

V

∆I

IH

IL

OH

OL

IN

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 V

–0.2 — V IOH = –100 µA

CC

2.7 2.2 — V IOH = –12 mA

3.0 2.4 — V

3.0 2.0 — 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

5.5 — 20 µAVIN = VCC or GND

3.0 to 3.6 — 500 µAVIN = one input at (V
other inputs at V

CC

–0.6)V,

CC

or GND

4

HD74LVC74

Switching Characteristics

Ta = –40 to 85°C

Item Symbol VCC (V) Min Typ Max Unit From (Input) To (Output)

Maximum clock frequency f

Propagation delay time t

Setup time t

Hold time t

Pulse width t

Recovery time t

Input capacitance C
Output capacitance C

max

PLH

t

PHL

t

PLH

t

PHL

su

h

w

rec

IN

O

2.7 150.0 — — MHz

3.3±0.3 150.0 — — MHz

5.0±0.5 150.0 — — MHz

2.7 — 6.0 9.0 ns CLK Q, Q

3.3±0.3 1.5 5.0 8.0 ns

5.0±0.5 — 4.0 6.5 ns

2.7 — 6.5 9.0 ns PR or CLR Q, Q

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 CK

3.3±0.3 4.0 — — ns

5.0±0.5 4.0 — — ns

2.7 6.0 — — ns PR or CLR

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

2.7 — 3.0 — pF

2.7 — 15.0 — pF

5

HD74LVC74

Test Circuit

V

PR

D

Pulse Generator

Z = 50

out

Ω

Input

Input

Pulse Generator

Z = 50

out

Ω

See Function Table

CK

CLR

Notes: 1. CL includes probe and jig capacitance.

2. Test is put into the each flip flops.

CC

Q

Q

C =

L

50 pF

C =

L

50 pF

50 ScopeΩ

50 ScopeΩ

450

450

Output Q

Ω

Output Q

Ω

6

Waveforms

HD74LVC74

Input CLR

Input PR

Input CK

Input D

Output Q

Output Q

t

f

90 %

V

ref

10 %

t

t

r

90 %

V

10 %

90 %

V

10 %

t

r

t

PHL

V

t

PLH

V

t

r

V

ref

IH

GND

V

IH

GND

V

IH

GND

V

IH

GND

V

OH

V

OL

V

OH

V

OL

90 %

V

ref

10 %

w

t

f

V

ref

t

rec

t

f

t (H)

w

t (L)

w

90 %

10 %

t

w

t

r

90 %

V

10 %

ref

t

rec

90 %

ref

V

ref

V

ref

V

ref

V

ref

V

10 %

t (H)

s

t (H)ht (L)st (L)

h

90 %

ref

V

ref

V

ref

V

ref

10 %

t

f

ref

ref

t

t

PLH

V

PHL

V

ref

ref

t

t

PHL

PLH

t

PLH

V

ref

t

V

ref

PHL

V

ref

V

ref

Notes: 1. tr = 2.5 ns, tf = 2.5 ns

2. Clock pulse input waveform : PRR = 10 MHz, duty cycle 50%

3. Data input waveform : PRR = 5 MHz, duty cycle 50%

Symbol

V

IH

V

ref

CC = 2.7 V,

V

3.3±0.3 V

2.7 V

1.5 V

VCC = 5.0±0.5 V

VCC

50%VCC

7

5.30 Max

14 8

17

+0.08

*0.22

–0.07

0.20 ± 0.06

5.00

0.83 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-14D
—
—

0.05 g

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.

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.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
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7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.

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