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74HC_HCT126

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Product data sheet

Rev. 4 — 1 December 2015

3 of 15

Nexperia

74HC126; 74HCT126

Quad buffer/line driver; 3-state

5.2 Pin description

6.

Functional description

[1]

H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.

7.

Limiting values

[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.

Table 2.

Pin description

Symbol

Pin

Description

1OE, 2OE, 3OE, 4OE

1, 4, 10, 13

data enable input (active HIGH)

1A, 2A, 3A, 4A

2, 5, 9, 12

data input

1Y, 2Y, 3Y, 4Y

3, 6, 8, 11

data output

GND

7

ground (0 V)

VCC

14

supply voltage

Table 3.

Function table[1]

Control

Input

Output

nOE

nA

nY

HL

L

HHH

LX

Z

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

[1]

-

20

mA

IOK

output clamping current

VO < 0.5 V or VO >VCC +0.5 V

[1]

-

20

mA

IO

output current

0.5 V < V

O < VCC +0.5 V

-

35

mA

ICC

supply current

-

70

mA

IGND

ground current

70

-

mA

Tstg

storage temperature

65

+150

C

Ptot

total power dissipation

Tamb = 40 C to +125 C

SO14 and (T)SSOP14 packages

[2]

-500

mW