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SN74HCS27

SCLS794A – FEBRUARY 2020 – REVISED JUNE 2020

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(1)

Stresses beyond those listed under Absolute Maximum Rating may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Condition. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

The input and output voltage ratings may be exceeded if the input and output current ratings are observed. Do not exceed the absolute

maximum voltage supply rating.

(3)

Guaranteed by design.

6 Specifications

6.1 Absolute Maximum Ratings

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

(1)

MIN

MAX

UNIT

VCC

Supply voltage

–0.5

7

V

IIK

Input clamp current(2)

VI < –0.5 or VI > VCC +

0.5

±20

mA

IOK

Output clamp current(2)

VO < –0.5 or VO > VCC +

0.5

±20

mA

IO

Continuous output current

VO = 0 to VCC

±35

mA

Continuous current through VCC or GND

±70

mA

TJ

Junction temperature(3)

150

°C

Tstg

Storage temperature

–65

150

°C

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.2 ESD Ratings

VALUE

UNIT

V(ESD)

Electrostatic discharge

Human-body model (HBM), per ANSI/ESDA/JEDEC

JS-001(1)

±4000

V

Charged-device model (CDM), per JEDEC

specification JESD22-C101(2)

±1500

6.3 Recommended Operating Conditions

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

MIN

NOM

MAX

UNIT

VCC

Supply voltage

2

6

V

VI

Input voltage

0

VCC

V

VO

Output voltage

0

VCC

V

Δt/Δv

Input transition rise and fall rate

Unlimited

ns/V

TA

Ambient temperature

–40

125

°C

6.4 Thermal Information

THERMAL METRIC

SN74HCS27

UNIT

PW (TSSOP)

D (SOIC)

14 PINS

14 PINS

RθJA

Junction-to-ambient thermal resistance

151.7

133.6

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

79.4

89.0

°C/W

RθJB

Junction-to-board thermal resistance

94.7

89.5

°C/W

ΨJT

Junction-to-top characterization parameter

25.2

45.5

°C/W

ΨJB

Junction-to-board characterization parameter

94.1

89.1

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

N/A

N/A

°C/W