74LVC2244AD datasheet(7/16 Pages) PHILIPS

Part #	74LVC2244AD

Description	Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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7 / 16 page

1999 Sep 30

Philips Semiconductors

Product speciﬁcation

Octal buffer/line driver with 30

Ω series termination

resistors; 5 V input/output tolerant; 3-state

74LVC2244A

AC CHARACTERISTICS

Ground = 0 V; tr =tf ≤ 2.5 ns.

Note

1. Typical values at VCC = 3.3 V and Tamb =25 °C.

AC WAVEFORMS

SYMBOL

PARAMETER

WAVEFORMS

VCC = 3.3 ±0.3 V

VCC = 2.7 V

UNIT

MIN.

TYP.(1)

MAX.

MIN.

MAX.

tPHL/tPLH

propagation delay

1An to 1Yn;2An to 2Yn

see Figs 4 and 6

1.5

4.0

6.5

1.5

7.5

tPZH/tPZL

3-state output enable time

1OE to 1Yn; 2OE to 2Yn

see Figs 5 and 6

1.5

4.4

8.1

1.5

9.1

tPHZ/tPLZ

3-state output disable time

1OE to 1Yn; 2OE to 2Yn

see Figs 5 and 6

1.5

3.8

5.4

1.5

6.4

Fig.4 The input nAn to output nYn propagation delays.

handbook, halfpage

MNA361

1An, 2An

input

1Yn, 2Yn

output

tPHL

tPLH

GND

VOH

VOL

VM = 1.5 V at VCC ≥ 2.7 V;

VM = 0.5 VCC at VCC < 2.7 V;

VOL and VOH are typical output voltage drop that occur with the output load.

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