U74AHC245L-R20-R datasheet(4/5 Pages) UTC

4 / 5 page

U74AHC245

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 5

www.unisonic.com.tw

QW-R502-987.A



SWITCHING CHARACTERISTICS (TA=25°С, RL=1kΩ,unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Propagation delay from input

(A or B) to output (B or A)

tpd

(tPLH/tPHL)

VCC=3.3V±0.3V, CL=15pF

5.8

8.4

VCC=3.3V±0.3V, CL=50pF

8.3

11.9

VCC=5V±0.5V, CL=15pF

5.5

VCC=5V±0.5V, CL=50pF

5.5

7.5

3-state output enable time from input

( OE ) to output (A or B)

ten

(tPZL/tPZH)

VCC=3.3V±0.3V, CL=15pF

8.5

13.2

VCC=3.3V±0.3V, CL=50pF

16.7

VCC=5V±0.5V, CL=15pF

5.8

8.5

VCC=5V±0.5V, CL=50pF

7.3

10.6

3-state output disable time from

input ( OE ) to output (A or B)

tdis

(tPLZ/tPHZ)

VCC=3.3V±0.3V, CL=15pF

8.9

12.5

VCC=3.3V±0.3V, CL=50pF

11.5 15.8

VCC=5V±0.5V, CL=15pF

5.6

7.8

VCC=5V±0.5V, CL=50pF

9.7



OPERATING CHARACTERISTICS(VCC=5V, TA=25°С)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Power Dissipation Capacitance

CPD

No load, f=1MHz

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