74HC08 datasheet(3/15 Pages) LEIDITECH

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5.2 Pin description

Table 2. Pin description

Symbol

Description

1A to 4A

1, 4, 9, 12

data input

1B to 4B

2, 5, 10,13

data input

1Y to 4Y

3, 6, 8, 11

data output

GND

ground (0 V)

VCC

supply voltage

6 Functional description

Table 3. Function table [1]

Input

Output

[1]

H = HIGH voltage level;

L = LOW voltage level;

X = don’t care.

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

IIK

input clamping current

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

[1]

±20

IOK

output clamping current

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

[1]

±20

output current

-0.5 V < VO < VCC + 0.5 V

±25

ICC

supply current

IGND

ground current

-50

Tstg

storage temperature

-65

+150

°C

Ptot

total power dissipation

Tamb = -40 to +85 °C

[2]

500

[1]

The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

[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.

74HC08; 74HCT08

Rev :

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