74AHCT374 查看數據表（PDF） - Philips Electronics

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74AHCT374

Octal D-type flip-flop; positive edge-trigger; 3-state

Philips Electronics 

Philips Semiconductors

Octal D-type flip-flop; positive edge-trigger; 3-state

Product specification

74AHC374;

74AHCT374

Type 74AHCT374

GND = 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 = 4.5 to 5.5 V; note 1

tPHL/tPLH propagation delay see Figs 6, 8

CP to Qn

and 9

15 pF −

4.3 9.4 1.0 10.5 1.0 12.0 ns

tPZH/tPZL propagation delay see Figs 7 and 9

OE to Qn

− 3.5 10.2 1.0 11.5 1.0 13.0 ns

tPHZ/tPLZ propagation delay

OE to Qn

− 3.6 10.2 1.0 11.0 1.0 13.0 ns

fmax

maximum clock see Figs 6 and 9

pulse frequency

90 140 −

80 −

80 −

MHz

tPHL/tPLH propagation delay see Figs 6, 8

50 pF −

5.6

CP to Qn

and 9

tPZH/tPZL propagation delay see Figs 7 and 9

OE to Qn

− 4.8

tPHZ/tPLZ propagation delay

OE to Qn

− 5.7

tW

clock pulse width see Figs 6 and 9

HIGH or LOW

6.5 −

10.4 1.0 11.5 1.0 13.0 ns

11.2 1.0 12.5 1.0 14.0 ns

11.2 1.0 12.0 1.0 14.0 ns

−

6.5 −

6.5 −

ns

tsu

set-up time

see Figs 8 and 9

Dn to CP

th

hold time

Dn to CP

fmax

maximum clock see Figs 6 and 9

pulse frequency

2.5 −

−

2.5 −

−

85 130 −

2.5 −

2.5 −

75 −

2.5 −

2.5 −

75 −

ns

ns

MHz

Note

1. Typical values at VCC = 5.0 V.

1999 Sep 28

11

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