HIT HD74LV174A Datasheet

HD74LV174A

Hex D-type Flip-Flops with Clear

ADE-205-269 (Z)

1st Edition
April 1999

Description

This device contains 6 master-slave flip-flops with a common clock and common clear. Data on the D
input having the specified setup and hold times is transferred to the Q output on the low to high transition
of the clock input. The clear input when low, sets all outputs to a low state. Low-voltage and high-speed
operation is suitable for 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 ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V)

Function Table

Inputs
CLR CLK D Output Q

LXXL
H ↑ HH
H ↑ LL
H ↓ X no change

Note: H: High level

L: Low level
X: Immaterial

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

HD74LV174A

Pin Arrangement

CLR

V

1

16

CC

1Q
1D
2D
2Q
3D
3Q

GND

2
3
4
5

6
7
8

(Top view)

15
14
13
12
11
10

6Q
6D
5D
5Q
4D
4Q

9

CLK

2

HD74LV174A

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
–20 mA VI < 0

±50 mA VO < 0 or VO > V
±25 mA VO = 0 to V

CC

±50 mA

785 mW SOP

500 TSSOP

CC

3

HD74LV174A

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
— –50 µAV
—–2 mAV
—–6 V

= 2.0 V

CC

= 2.3 to 2.7 V

CC

= 3.0 to 3.6 V

CC

— –12 VCC = 4.5 to 5.5 V
—50 µAV

= 2.0 V

CC

— 2 mA VCC = 2.3 to 2.7 V
—6 V
—12 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

1

CLR

9

CLK

3

1D

To Five Other Channels

1D

R

C1

2

1Q

4

HD74LV174A

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
Quiescent

IH

V

IL

OH

V

OL

IN

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 = –6 mA

4.5 3.8 — — IOH = –12 mA
Min to

— — 0.1 IOL = 50 µA

Max

2.3 — — 0.4 IOL = 2 mA

3.0 — — 0.44 IOL = 6 mA

4.5 — — 0.55 IOL = 12 mA
0 to 5.5 — — ±1 µAVI = 5.5 V or GND

5.5 — — 20 µAVI = VCC or GND, IO = 0

0——5 µAVI or VO = 0 V to 5.5 V

3.3 — 1.7 — pF VI = VCC or GND

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