74LVT273PWDH データシートの表示（PDF） - Philips Electronics

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74LVT273PWDH

3.3V Octal D flip-flop

Philips Electronics 

Philips Semiconductors

3.3V Octal D flip-flop

Product specification

74LVT273

AC SETUP REQUIREMENTS

GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω, Tamb = –40°C to +85°C.

SYMBOL

PARAMETER

WAVEFORM

ts(H)

ts(L)

Setup time, High or Low

Dn to CP

3

th(H)

th(L)

Hold time, High or Low

Dn to CP

3

tw(H)

tw(L)

Clock pulse width

High or Low

1

tw(L)

Master Reset pulse width, Low

2

tREC

Recovery time

MR to CP

2

LIMITS

VCC = +3.3 ± 0.3V

MIN

TYP

VCC = 2.7V

MIN

2.3

1.0

2.7

2.3

1.0

2.7

0

–0.6

0

0

–0.6

0

3.3

1.5

3.3

3.3

1.5

3.3

3.3

1.5

3.3

2.7

1.0

3.2

UNIT

ns

ns

ns

ns

ns

AC WAVEFORMS

VM = 1.5V, VIN = GND to 2.7V

1/fMAX

CP

1.5V

1.5V

1.5V

2.7V

tw(H)

tPHL

tw(L)

tPLH

0V

VOH

Qn

1.5V

1.5V

VOL

SV00021

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

MR

1.5V

1.5V

tw(L)

tREC

CP

1.5V

tPHL

Qn

1.5V

2.7V

0V

2.7V

0V

VOH

VOL

SV00107

Waveform 2. Master Reset Pulse Width, Master Reset to

Output Delay and Master Reset to Clock Recovery Time

DnÉÉÉÉÉÉÉÉÉ1.5V

1.5ÉÉÉV ÉÉÉÉÉÉÉÉÉÉÉÉ1.5ÉÉÉV ÉÉÉ1.5V ÉÉÉÉÉÉ

2.7V

0V

ts(H)

th(H)

ts(L)

th(L)

CP

1.5V

1.5V

2.7V

0V

NOTE: The shaded areas indicate when the input is permitted

to change for predictable output performance.

Waveform 3. Data Setup and Hold Times

SV00108

1998 Feb 19

6

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