74AHC273 datasheet(13/20 Pages) PHILIPS

tên linh kiện	74AHC273

Giải thích chi tiết về linh kiện	Octal D-type flip-flop with reset; positive-edge trigger

PDF	20 Pages

Scroll/Zoom	100%

nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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13 / 20 page

1999 Sep 01

Philips Semiconductors

Product speciﬁcation

Octal D-type ﬂip-ﬂop with reset;

positive-edge trigger

74AHC273; 74AHCT273

handbook, full pagewidth

MNA202

GND

tsu

(1)

Qn OUTPUT

CP INPUT

Dn INPUT

Fig.8 The data set-up and hold times for the data input (Dn).

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

FAMILY

VI INPUT

REQUIREMENTS

INPUT

OUTPUT

AHC

GND to VCC

50% VCC

AHCT

GND to 3.0 V

1.5 V

50% VCC

Fig.9 Load circuitry for switching times.

handbook, full pagewidth

open

GND

VCC

MNA183

D.U.T.

1000

Ω

PULSE

GENERATOR

TEST

tPLH/tPHL

open

tPLZ/tPZL

VCC

tPHZ/tPZH

GND

Definitions for test circuit.

CL = load capacitance including jig and probe capacitance (See Chapter “AC characteristics”).

RL = load resistance.

RT = termination resistance should be equal to the output impedance Zo of the pulse generator.

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