74HC173N datasheet(9/10 Pages) PHILIPS

9 / 10 page

December 1990

Philips Semiconductors

Product speciﬁcation

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

74HC/HCT173

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; tr =tf = 6 ns; CL =50pF

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HCT

VCC

(V)

WAVEFORMS

+25

−40 to +85 −40 to +125

min.

typ.

max.

min.

max. min. max.

tPHL/ tPLH propagation delay

CP to Qn

4.5

Fig.6

tPHL

propagation delay

MR to Qn

4.5

Fig.7

tPZH/ tPZL

3-state output enable time

OEn to Qn

4.5

Fig.8

tPHZ/ tPLZ

3-state output disable time

OEn to Qn

4.5

Fig.8

tTHL/ tTLH

output transition time

4.5

Fig.6

clock pulse width

HIGH or LOW

4.5

Fig.6

master reset pulse

width; HIGH

4.5

Fig.7

trem

removal time

MR to CP

−2

4.5

Fig.7

tsu

set-up time

En to CP

4.5

Fig.9

tsu

set-up time

Dn to CP

4.5

Fig.9

hold time

En to CP

−6

4.5

Fig.9

hold time

Dn to CP

−3

4.5

Fig.9

fmax

maximum clock pulse

frequency

MHz

4.5

Fig.6

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