74F378 datasheet(5/10 Pages) PHILIPS

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Philips Semiconductors

Product specification

74F378

Hex D flip-flop with enable

1989 Oct 05

AC ELECTRICAL CHARACTERISTICS

LIMITS

Tamb = +25°C

Tamb = 0°C to +70°C

SYMBOL

PARAMETER

TEST

VCC = +5.0V

VCC = +5.0V ± 10%

UNIT

CONDITION

CL = 50pF, RL = 500Ω

MIN

TYP

MAX

MIN

MAX

fMAX

Maximum clock frequency

Waveform 1

100

MHz

tPLH

tPHL

Propagation delay

CP to Qn

Waveform 1

3.0

3.5

5.5

6.0

7.5

8.5

3.0

3.5

8.5

9.5

AC SETUP REQUIREMENTS

LIMITS

Tamb = +25°C

Tamb = 0°C to +70°C

SYMBOL

PARAMETER

TEST

VCC = +5.0V

VCC = +5.0V ± 10%

UNIT

CONDITION

CL = 50pF, RL = 500Ω

CL= 50pF, RL = 500Ω

MIN

TYP

MAX

MIN

MAX

ts (H)

ts (L)

Setup time, High or Low

Dn to CP

Waveform 2

4.0

th (H)

th (L)

Hold time, High or Low

Dn to CP

Waveform 2

ts (H)

ts (L)

Setup time, High or Low

E to CP

Waveform 2

4.0

10.0

4.0

10.0

th (H)

th (L)

Hold time, High or Low

E to CP

Waveform 2

tw (H)

tw (L)

CP Pulse width,

High or Low

Waveform 1

4.0

6.0

4.0

6.0

AC WAVEFORMS

For all waveforms, VM = 1.5V.

The shaded areas indicate when the input is permitted to change for predictable output performance.

tPLH

tw(H)

1/fMAX

tw(L)

tPHL

SF00919

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

ts(H)

ts(L)

SF00920

th=0

Waveform 2. Data and Enable Setup Time and Hold Times

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