74HCT393D datasheet(5/21 Pages) NXP

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74HC_HCT393

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Product data sheet

Rev. 4 — 16 May 2013

5 of 21

NXP Semiconductors

74HC393; 74HCT393

Dual 4-bit binary ripple counter

Functional description

[1]

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

Limiting values

[1]

For DIP14 package: Ptot derates linearly with 12 mW/K above 70 C.

[2]

For SO14 package: Ptot derates linearly with 8 mW/K above 70 C.

For (T)SSOP14 packages: Ptot derates linearly with 5.5 mW/K above 60 C.

For DHVQFN14 packages: Ptot derates linearly with 4.5 mW/K above 60 C.

Table 3.

Count sequence for one counter [1]

Count

Output

nQ0

nQ1

nQ2

nQ3

LLLL

LLL

HHL

LLH

HHL

HHHL

LLLH

LLH

HHL

LLH

HHH

HHHH

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

IIK

input clamping current

VI < 0.5 V or VI >VCC +0.5 V

20

IOK

output clamping current

VO < 0.5 V or VO >VCC +0.5 V

20

output current

VO = 0.5 V to VCC +0.5 V

25

ICC

supply current

±50

IGND

ground current

50

Tstg

storage temperature

65

+150

C

Ptot

total power dissipation

DIP14 package

[1] -

750

SO14, SSOP14, TSSOP14 and

DHVQFN14 package

[2] -

500

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