Nexperia

HEF4028B

BCD to decimal decoder

5.2. Pin description

Table 2. Pin description

Symbol

Pin

Description

Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7, Y8, Y9

3, 14, 2, 15, 1, 6, 7, 4, 9, 5

output (active HIGH)

VSS

8

ground supply voltage

A0, A1, A2, A3

10, 13, 12, 11

address input

VDD

16

supply voltage

6. Functional description

Table 3. Function table

H = HIGH voltage level; L = LOW voltage level; X = don’t care.

Inputs

Outputs

A3

A2

A1

A0

Y0

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y8

Y9

L

L

L

L

H

L

L

L

L

L

L

L

L

L

L

L

L

H

L

H

L

L

L

L

L

L

L

L

L

L

H

L

L

L

H

L

L

L

L

L

L

L

L

L

H

H

L

L

L

H

L

L

L

L

L

L

L

H

L

L

L

L

L

L

H

L

L

L

L

L

L

H

L

H

L

L

L

L

L

H

L

L

L

L

L

H

H

L

L

L

L

L

L

L

H

L

L

L

L

H

H

H

L

L

L

L

L

L

L

H

L

L

H

L

L

L

L

L

L

L

L

L

L

L

H

L

H

L

L

H

L

L

L

L

L

L

L

L

L

H

H

L

H

X

L

L

L

L

L

L

L

L

L

L

[1]

H

H

X

X

L

L

L

L

L

L

L

L

L

L

[1]

[1] Extraordinary states.

7. Limiting values

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

VDD

supply voltage

-0.5

+18

V

IIK

input clamping current

VI < -0.5 V or VI > VDD + 0.5 V

-

±10

mA

VI

input voltage

-0.5

VDD + 0.5 V

IOK

output clamping current

VO < -0.5 V or VO > VDD + 0.5 V

-

±10

mA

II/O

input/output current

-

±10

mA

IDD

supply current

-

50

mA

Tstg

storage temperature

-65

+150

°C

Tamb

ambient temperature

-40

+85

°C

Ptot

total power dissipation

Tamb = -40 °C to +85 °C

-

500

mW

P

power dissipation

per output

-

100

mW

HEF4028B

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 10 — 7 December 2021

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