74AHC273PW 查看數據表（PDF） - Philips Electronics

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74AHC273PW

Octal D-type flip-flop with reset; positive-edge trigger

Philips Electronics 

Philips Semiconductors

Octal D-type flip-flop with reset;

positive-edge trigger

Product specification

74AHC273; 74AHCT273

AC CHARACTERISTICS

Type 74AHC273

Ground = 0 V; tr = tf ≤ 3.0 ns.

SYMBOL PARAMETER

TEST CONDITIONS

WAVEFORMS CL

Tamb (°C)

25

−40 to +85 −40 to +125 UNIT

MIN. TYP. MAX. MIN. MAX. MIN. MAX.

VCC = 3.0 to 3.6 V; note 1

tPHL/tPLH

tPHL

fmax

propagation delay

CP to Qn

propagation delay

MR to Qn

maximum clock

pulse frequency

see Figs 6 and 9

see Figs 7 and 9

15 pF −

−

75

tPHL/tPLH

tPHL

tW

propagation delay

CP to Qn

propagation delay

MR to Qn

clock pulse width

HIGH or LOW

see Figs 6 and 9

see Figs 7 and 9

see Figs 6 and 9

50 pF −

−

5.0

master reset

see Figs 7 and 9

5.0

pulse width LOW

trem

removal time

2.5

MR to CP

tsu

set-up time

see Figs 8 and 9

3.0

Dn to CP

th

hold time

1.0

Dn to CP

fmax

maximum clock

50

pulse frequency

6.0 13.6 1.0

5.1 13.6 1.0

120 −

65

8.6 17.1 1.0

7.3 17.1 1.0

−

−

6.5

−

−

6.0

−

−

2.5

−

−

3.0

−

−

1.0

75 −

45

16.0 1.0

16.0 1.0

−

65

19.5 1.0

19.5 1.0

−

6.5

−

6.0

−

2.5

−

3.0

−

1.0

−

45

17.0 ns

17.0 ns

−

ns

21.5 ns

21.5 ns

−

ns

−

ns

−

ns

−

ns

−

ns

−

ns

1999 Sep 01

9

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