over operating free-air temperature range (unless otherwise noted) (1)

MIN

MAX

UNIT

TA

Operating free-air temperature

SN54AHC08

–55

125

°C

SN74AHC08

–40

125

(1)

All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, SCBA004.

6.4 Thermal Information

THERMAL METRIC(1)

SN74AHC08

UNIT

D (SOIC)

DB

(SSOP)

DGV

(TVSOP)

N (PDIP)

NS (SO)

PW (TSSOP)

RGY

(VQFN)

BQA

(WQF

N)

14 PINS

14 PINS

14 PINS

14 PINS

14 PINS

14 PINS

14 PINS

14

PINS

RθJA

Junction-to-ambient thermal

resistance

124.5

96

127

80

76

147.7

47

88.3

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

6.5 Electrical Characteristics, TA = 25°C

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VOH

IOH = –50 µA

2 V

1.9

2

V

3 V

2.9

3

4.5 V

4.4

4.5

IOH = –4 mA

3 V

2.58

IOH = –8 mA

4.5 V

3.94

VOL

IOL = 50 µA

2 V

0.1

V

3 V

0.1

4.5 V

0.1

IOH = 4 mA

3 V

0.36

IOH = 8 mA

4.5 V

0.36

II

VI = 5.5 V or GND

0 V to 5.5 V

±0.1

µA

ICC

VI = VCC or GND,

IO = 0

5.5 V

2

µA

Ci

VI = VCC or GND

5 V

4

10

pF

SN54AHC08, SN74AHC08

SCLS236K – OCTOBER 1995 – REVISED JUNE 2023

www.ti.com

6

Submit Document Feedback

Copyright © 2023 Texas Instruments Incorporated

Product Folder Links: SN54AHC08 SN74AHC08