74ALVT16823DL 查看數據表（PDF） - Philips Electronics

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74ALVT16823DL

18-bit bus-interface D-type flip-flop with reset and enable (3-State)

Philips Electronics 

Philips Semiconductors

2.5V/3.3V 18-bit bus-interface D-type flip-flop

with reset and enable (3-State)

Product specification

74ALVT16823

AC WAVEFORMS (Continued)

For all waveforms, VM = 1.5V or VCC/2 whichever is less

The shaded areas indicate when the input is permitted to change for

predictable output performance.

nOE

nQx

VM

tPZL

VM

VM

tPLZ

3.0V or VCC

whichever

is less

0V

3.0V or VCC

whichever

is less

VOL +0.3V

VOL

SH00021

Waveform 5. 3-State Output Enable Time to Low Level

and Output Disable Time from Low Level

TEST CIRCUIT AND WAVEFORM

VCC

VIN

VOUT

RL

PULSE

GENERATOR

D.U.T.

RT

CL

RL

Test Circuit for 3-State Outputs

SWITCH POSITION

TEST

SWITCH

tPHZ/tPZH

tPLZ/tPZL

tPLH/tPHL

GND

6V or VCC x 2

open

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.

6V or

VCC x 2

90%

OPEN

NEGATIVE

GND

PULSE

tW

VM

10%

tTHL (tF)

VM

10%

90%

AMP (V)

0V

tTLH (tR)

POSITIVE

PULSE

10%

tTLH (tR)

90%

VM

tW

90%

VM

tTHL (tF)

AMP (V)

10%

0V

VM = 1.5V or VCC / 2, whichever is less

Input Pulse Definition

FAMILY

74ALVT16

INPUT PULSE REQUIREMENTS

Amplitude Rep. Rate

3.0V or VCC

whichever

is less

≤10MHz

tW

tR

500ns ≤2.5ns

tF

≤2.5ns

SW00162

1998 Jun 12

9

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