Nexperia

HEF4518B

Dual BCD counter

001aae703

nCP0

nCP1

nMR

nQ0

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

nQ1

nQ2

nQ3

Fig. 4. Timing diagram

8. 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

9. Recommended operating conditions

Table 5. Recommended operating conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDD

supply voltage

3

-

15

V

VI

input voltage

0

-

VDD

V

Tamb

ambient temperature

in free air

-40

-

+85

°C

VDD = 5 V

-

-

3.75

μs/V

VDD = 10 V

-

-

0.5

μs/V

Δt/ΔV

input transition rise and fall rate

VDD = 15 V

-

-

0.08

μs/V

HEF4518B

All information provided in this document is subject to legal disclaimers.

© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 9 — 3 December 2021

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