74ALVT162821 datasheet(9/12 Pages) PHILIPS

부품명	74ALVT162821

상세설명	2.5V/3.3V 20-bit bus-interface D-type flip-flop; positive-edge trigger with 30ohm termination resistors 3-State

PDF	12 Pages

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제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

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9 / 12 page

Philips Semiconductors

Product specification

74ALVT162821

2.5V/3.3V 20-bit bus-interface D-type flip-flop;

positive-edge trigger with 30

W termination resistors (3-State)

1998 Oct 02

nQx

tPZH

tPHZ

SH00007

nOE

VOH

3.0V or VCC

whichever

is less

Waveform 3. 3-State Output Enable Time to High Level

and Output Disable Time from High Level

nQx

tPZL

tPLZ

SH00008

nOE

VOL

3.0V or VCC

whichever

is less

Waveform 4. 3-State Output Enable Time to Low Level

and Output Disable Time from Low Level

TEST CIRCUIT AND WAVEFORM

PULSE

GENERATOR

VIN

VOUT

VCC

Test Circuit for 3-State Outputs

NEGATIVE

PULSE

10%

90%

POSITIVE

PULSE

90%

10%

tTHL (tF)

tTLH (tR)tTHL (tF)

tTLH (tR)

DEFINITIONS

RL = Load resistor; see AC CHARACTERISTICS for value.

CL = Load capacitance includes jig and probe capacitance:

See AC CHARACTERISTICS for value.

RT = Termination resistance should be equal to ZOUT of

pulse generators.

INPUT PULSE REQUIREMENTS

FAMILY

74ALVT16

SWITCH POSITION

TEST

SWITCH

tPLZ/tPZL

6V or VCC x 2

tPLH/tPHL

Open

tPHZ/tPZH

GND

6.0V or VCC x 2

Open

GND

SW00025

D.U.T.

Amplitude

Rep. Rate

3.0V or VCC

whichever

is less

v10MHz

500ns

v2.5ns v2.5ns

VIN

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