74LVC32244 datasheet(8/16 Pages) PHILIPS

tên linh kiện	74LVC32244

Giải thích chi tiết về linh kiện	32-bit buffer/line driver; 5 V input/output tolerant; 3-state

PDF	16 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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8 / 16 page

1999 Aug 31

Philips Semiconductors

Product speciﬁcation

32-bit buffer/line driver; 5 V input/output

tolerant; 3-state

74LVC32244A;

74LVCH32244A

AC CHARACTERISTICS

Ground = 0 V; tr =tf ≤ 2.5 ns; CL = 50 pF; RL = 500 Ω.

Notes

1. All typical values are measured at VCC = 3.3 V and Tamb =25 °C.

AC WAVEFORMS

SYMBOL

PARAMETER

TEST CONDITIONS

Tamb = −40 to +85 °C

UNIT

WAVEFORMS

VCC (V)

MIN.

TYP.(1)

MAX.

tPHL/tPLH

propagation delay

nAn to nYn

see Figs 4 and 6

2.7

1.5

−

5.5

3.0 to 3.6

1.5

3.0

4.5

tPZH/tPZL

3-state output enable time

nOE to nYn

see Figs 5 and 6

2.7

1.5

−

6.5

3.0 to 3.6

1.5

3.5

5.5

tPHZ/tPLZ

3-state output disable time

nOE to nYn

see Figs 5 and 6

2.7

1.5

−

6.2

3.0 to 3.6

1.5

3.7

5.2

Fig.4 Input nAn to output nYn propagation delay times.

VM = 1.5 V at VCC ≥ 2.7 V or

VM = 0.5 × VCC at VCC < 2.7 V.

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

handbook, halfpage

MNA474

nAn

INPUT

nYn

OUTPUT

tPHL

tPLH

GND

VOH

VOL

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