SN74LVC138AD datasheet(7/40 Pages) TI2

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SN54LVC138A, SN74LVC138A

www.ti.com

SCAS291W – MARCH 1993 – REVISED OCTOBER 2016

Product Folder Links: SN54LVC138A SN74LVC138A

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(1)

All typical values are at VCC = 3.3 V, TA = 25°C.

6.5 Electrical Characteristics

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP(1)

MAX

UNIT

VOH

High-level output voltage

IOH = –100 µA

SN74LVC138A

1.65 V to 3.6 V

VCC – 0.2

SN54LVC138A

2.7 V to 3.6 V

VCC – 0.2

IOH = –4 mA

SN74LVC138A

1.65 V

1.2

IOH = –8 mA

SN74LVC138A

2.3 V

1.7

IOH = –12 mA

2.7 V

2.2

3 V

2.4

IOH = –24 mA

3 V

2.2

VOL

Low-level output voltage

IOL = 100 µA

SN74LVC138A

1.65 V to 3.6 V

0.2

SN54LVC138A

2.7 V to 3.6 V

0.2

IOL = 4 mA

SN74LVC138A

1.65 V

0.45

IOL = 8 mA

SN74LVC138A

2.3 V

0.7

IOL = 12 mA

2.7 V

0.4

IOL = 24 mA

3 V

0.55

Input current

VI = 5.5 V or GND

3.6 V

±5

µA

ICC

Supply current

VI = VCC or GND, IO = 0

3.6 V

µA

ΔICC

Change in supply current

One input at VCC – 0.6 V,

Other inputs at VCC or GND

2.7 V to 3.6 V

500

µA

Input capacitance

VI = VCC or GND

3.3 V

6.6 Switching Characteristics—SN54LVC138A

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 2)

PARAMETER

FROM

(INPUT)

(OUTPUT)

TEST CONDITIONS

MIN

MAX

UNIT

tpd

Propagation (delay) time

A or B or C

VCC = 2.7 V

7.9

VCC = 3.3 V ± 0.3 V

6.7

G2A or G2B

VCC = 2.7 V

7.4

VCC = 3.3 V ± 0.3 V

6.5

VCC = 2.7 V

6.4

VCC = 3.3 V ± 0.3 V

5.8

6.7 Switching Characteristics—SN74LVC138A

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 2)

PARAMETER

FROM

(INPUT)

(OUTPUT)

TEST CONDITIONS

MIN

MAX

UNIT

tpd

Propagation (delay) time

A or B or C

VCC = 1.8 V ± 0.15 V

VCC = 2.5 V ± 0.2 V

9.9

VCC = 2.7 V

7.9

VCC = 3.3 V ± 0.3 V

6.7

G2A or G2B

VCC = 1.8 V ± 0.15 V

VCC = 2.5 V ± 0.2 V

9.4

VCC = 2.7 V

7.4

VCC = 3.3 V ± 0.3 V

6.5

VCC = 1.8 V ± 0.15 V

20.3

VCC = 2.5 V ± 0.2 V

8.4

VCC = 2.7 V

6.4

VCC = 3.3 V ± 0.3 V

5.8

tsk(o)

Skew (time), output

—

VCC = 3.3 V ± 0.3 V

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