74VCX163245LBR datasheet(8/15 Pages) STMICROELECTRONICS

8 / 15 page

74VCX163245

8/15

AC ELECTRICAL CHARACTERISTICS

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

CAPACITANCE CHARACTERISTICS

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 current can be obtained by the following equation. ICC(opr) =CPD xVCC xfIN +ICC/16 (per circuit)

Symbol

Parameter

Test Condition TA = -40 to 85 °C

Unit

VCCB = 1.8 ± 0.15V VCCB = 1.8 ± 0.15V

VCCB = 2.5 ± 0.2V

VCCA =2.5 ± 0.2V

VCCA = 3.3 ± 0.3V

Min.

Max.

Min.

Max.

Min.

Max.

tPLH,tPHL Propagation Delay Time An to Bn

1.0

5.8

1.0

6.2

1.0

4.4

tPLH,tPHL Propagation Delay Time Bn to An

1.0

5.5

1.0

5.1

1.0

4.0

tPZL,tPZH Output Enable Time OE to An

1.0

5.3

1.0

5.1

1.0

4.0

tPZL,tPZH Output Enable Time OE to Bn

1.0

8.3

1.0

8.2

1.0

4.6

tPLZ,tPHZ Output Disable Time OE to An

1.0

5.2

1.0

5.6

1.0

4.8

tPLZ,tPHZ Output Disable Time OE to Bn

1.0

4.6

1.0

4.5

1.0

4.4

tOSLH

tOSHL

Output To Output Skew Time

(note1, 2)

5.0

0.5

0.75

Symbol

Parameter

Test Condition

Value

Unit

VCCB

(V)

VCCA

(V)

TA =25 °C

-40to85°C

Min.

Typ.

Max.

Min.

Max.

CINA

Input Capacitance

open

CI/O

Input/Output

Capacitance

2.5

3.3

CPD

Power Dissipation

Capacitance

2.5

3.3

f=10MHz

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