74LCX162244_07 datasheet(8/15 Pages) STMICROELECTRONICS

Teilenummer	74LCX162244

Bauteilbeschribung	Low voltage CMOS 16-bit bus buffer (3-state) with 5V tolerant inputs and outputs

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Electrical characteristics

74LCX162244

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Table 7. AC electrical characteristics

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

CL

(pF)

RL

(

Ω)

ts = tr

(ns)

-40 to 85 °C

Min

Max

tPLH tPHL

Propagation

delay time

2.7

50

500

2.5

1.5

5.6

ns

3.0 to 3.6

1.5

4.4

tPZL tPZH

Output enable

time

2.7

50

500

2.5

1.5

6.3

ns

3.0 to 3.6

1.5

5.9

tPLZ tPHZ

Output disable

time

2.7

50

500

2.5

1.5

6.3

ns

3.0 to 3.6

1.5

5.9

tOSLH

tOSHL

Output to output

skew time (1) (2)

1.

Skew is defined as the absolute value of the difference between the actual propagation delay for any two

outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|,

tOSHL = | tPHLm - tPHLn|)

2.

Parameter guaranteed by design

3.0 to 3.6

50

500

2.5

1.0

ns

Table 8. Capacitive characteristics

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25 °C

Min

Typ

Max

CIN

Input capacitance

4

pF

COUT

Output capacitance

10

pF

CPD

Power dissipation

capacitance (1)

1.

CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the

operating current consumption without load. (Refer to Test Circuit). Average operating current can be

obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/16 (per circuit)

3.3

fIN = 10MHz

VIN = 0 or VCC

50

pF

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