74LCX16541 datasheet(5/9 Pages) STMICROELECTRONICS

Part #	74LCX16541

Description	LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS/OUTPUTS (NON INVERTED)

PDF	9 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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5 / 9 page

74LCX16541

5/9

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

TEST CIRCUIT

CL = 50 pF or equivalent (includes jig and probe capacitance)

RL =R1 = 500 Ω or equivalent

RT =ZOUT of pulse generator (typically 50Ω)

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA =25°C

Min.

Typ.

Max.

CIN

Input Capacitance

3.3

VI =0V orVCC

4pF

COUT

Output Capacitance

3.3

VI =0V orVCC

CPD

Power Dissipation Capacitance

(note 1) Output enabled

2.5

fIN = 10MHz

VI =0V orVCC

3.3

Power Dissipation Capacitance

(note 1) Output disabled

2.5

fIN = 10MHz

VI =0V orVCC

3pF

3.3

TEST

SWITCH

tPLH,tPHL

Open

tPZL,tPLZ

2VCC

tPZH,tPHZ

GND

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