Nexperia

74HC393; 74HCT393

Dual 4-bit binary ripple counter

6. Functional description

Table 3. Count sequence for one counter

H = HIGH voltage level; L = LOW voltage level.

Output

Count

nQ0

nQ1

nQ2

nQ3

0

L

L

L

L

1

H

L

L

L

2

L

H

L

L

3

H

H

L

L

4

L

L

H

L

5

H

L

H

L

6

L

H

H

L

7

H

H

H

L

8

L

L

L

H

9

H

L

L

H

10

L

H

L

H

11

H

H

L

H

12

L

L

H

H

13

H

L

H

H

14

L

H

H

H

15

H

H

H

H

7. Limiting values

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

-0.5

+7

V

IIK

input clamping current

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

-

±20

mA

IOK

output clamping current

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

-

±20

mA

IO

output current

VO = -0.5 V to VCC + 0.5 V

-

±25

mA

ICC

supply current

-

±50

mA

IGND

ground current

-

±50

mA

Tstg

storage temperature

-65

+150

°C

Ptot

total power dissipation

[1]

-

500

mW

[1] For SOT108-1 (SO14) package: Ptot derates linearly with 10.1 mW/K above 100 °C.

For SOT402-1 (TSSOP14) package: Ptot derates linearly with 7.3 mW/K above 81 °C.

For SOT762-1 (DHVQFN14) package: Ptot derates linearly with 9.6 mW/K above 98 °C.

74HC_HCT393

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 8 — 22 October 2021

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