74LV21A datasheet(4/13 Pages) TI

Nome de Peças	74LV21A

Descrição Electrónicos	DUAL 4-INPIT POSITIVE-AND GATES

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Fabricante Electrônico	TI [Texas Instruments]

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SN54LV21A, SN74LV21A

DUAL 4INPUT POSITIVEAND GATES

SCES340E − SEPTEMBER 2000 − REVISED APRIL 2005

4

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

switching characteristics over recommended operating free-air temperature range,

VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV21A

SN74LV21A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tpd

A, B, C, or D

Y

CL = 15 pF

7*

12*

1*

14*

1

14

ns

tpd

A, B, C, or D

Y

CL = 50 pF

9.2

15.7

1

19

1

19

ns

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

switching characteristics over recommended operating free-air temperature range,

VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV21A

SN74LV21A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tpd

A, B, C, or D

Y

CL = 15 pF

5.1*

7*

1*

8.5*

1

8.5

ns

tpd

A, B, C, or D

Y

CL = 50 pF

6.6

10.5

1

12

1

12

ns

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

switching characteristics over recommended operating free-air temperature range,

VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV21A

SN74LV21A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tpd

A, B, C, or D

Y

CL = 15 pF

3.8*

5*

1*

6*

1

6

ns

tpd

A, B, C, or D

Y

CL = 50 pF

4.9

7

1

8

1

8

ns

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 5)

PARAMETER

SN74LV21A

UNIT

PARAMETER

MIN

TYP

MAX

UNIT

VOL(P)

Quiet output, maximum dynamic VOL

0.2

0.8

V

VOL(V)

Quiet output, minimum dynamic VOL

0

−0.8

V

VOH(V)

Quiet output, minimum dynamic VOH

3.2

V

VIH(D)

High-level dynamic input voltage

2.31

V

VIL(D)

Low-level dynamic input voltage

0.99

V

NOTE 5: Characteristics are for surface-mount packages only.

operating characteristics, TA = 25°C

PARAMETER

TEST CONDITIONS

VCC

TYP

UNIT

Cpd

Power dissipation capacitance

CL = 50 pF,

f = 10 MHz

3.3 V

17.4

pF

Cpd

Power dissipation capacitance

CL = 50 pF,

f = 10 MHz

5 V

20.2

pF

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.

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