U74AC74G-S14-R datasheet(4/6 Pages) UTC

4 / 6 page

U74AC74

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R502-800.A

DYNAMIC CHARACTERISTICS

TA=25°C, unless otherwise specified, Input: tR, tF≤2.5ns; PRR≤1MHz

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Clock frequency

FCLOCK VCC=3V±0.3V

100

MHZ

Pulse duration

VCC=3V±0.3V， PRE or CLR in Low

5.5

VCC=3V±0.3V, CLK

5.5

Setup time before CLK↑

tsu

VCC=3V±0.3V, PRE or CLR inactive

Data

Hold time ,data after CLK↑

VCC=3V±0.3V

0.5

Clock frequency

FCLOCK VCC=5V±0.5V

140

MHz

Pulse duration

VCC=5V±0.5V， PRE or CLR in Low

4.5

VCC=3V±0.3V, CLK

4.5

Setup time before CLK↑

tsu

VCC=5V±0.5V, PRE or CLR inactive

Data

Hold time ,data after CLK↑

VCC=5V±0.5V

0.5

DYNAMIC CHARACTERISTICS (See Fig. 1 and Fig. 2 for test circuit and waveforms.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Maximum clock

FMAX

VCC=3V±0.3V, CL=50pF, RL=500Ω

100

125

MHz

Propagation delay from input

( PRE or CLR ) to output(Q or Q)

tPLH

VCC=3V±0.3V, CL=50pF, RL=500Ω

3.5

tPHL

10.5

Propagation delay from input

(CLK) to output(Q or Q)

tPLH

VCC=3V±0.3V, CL=50pF, RL=500Ω

4.5

13.5

tPHL

3.5

Maximum clock

FMAX

VCC=5V±0.5V

140

160

MHz

Propagation delay from input

( PRE or CLR ) to output(Q or Q)

tPLH

VCC=5V±0.5V, CL=50pF, RL=500Ω

2.5

tPHL

9.5

Propagation delay from input

(CLK) to output(Q or Q)

tPLH

VCC=5V±0.5V, CL=50pF, RL=500Ω

3.5

tPHL

2.5

OPERATING CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Power Dissipation Capacitance

Cpd

CL=50p, f=1MHz, VCC=3.3V

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