74LCX162244TTR 데이터 시트보기 (PDF) - STMicroelectronics

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74LCX162244TTR

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

STMicroelectronics 

Electrical characteristics

74LCX162244

Table 7. AC electrical characteristics

Test Condition

Value

Symbol Parameter

VCC

CL

RL

ts = tr

(V)

(pF) (Ω)

(ns)

-40 to 85 °C

Unit

Min

Max

tPLH tPHL

Propagation

delay time

2.7

50

500

3.0 to 3.6

2.5

1.5

1.5

5.6

ns

4.4

tPZL tPZH

Output enable

time

2.7

3.0 to 3.6

50

500

2.5

1.5

1.5

6.3

ns

5.9

tPLZ tPHZ

Output disable

time

2.7

3.0 to 3.6

50

500

2.5

1.5

1.5

6.3

ns

5.9

tOSLH

tOSHL

Output to output

skew time (1) (2) 3.0 to 3.6

50

500

2.5

1.0

ns

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

Table 8. Capacitive characteristics

Test Condition

Value

Symbol

Parameter

VCC

(V)

TA = 25 °C

Unit

Min Typ Max

CIN Input capacitance

4

pF

COUT Output capacitance

10

pF

CPD Power dissipation

capacitance (1)

3.3

fIN = 10MHz

50

pF

VIN = 0 or VCC

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)

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