74HC162 datasheet(9/11 Pages) PHILIPS

9 / 11 page

December 1990

Philips Semiconductors

Product speciﬁcation

Presettable synchronous BCD decade

counter; synchronous reset

74HC/HCT162

AC CHARACTERISTICS FOR HCT

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

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HCT

VCC

(V)

WAVEFORMS

+25

−40 to +85

−40

+125

min.

typ.

max. min.

max.

min. max.

tPHL/ tPLH

propagation delay

CP to Qn

4.5

Fig.8

tPHL

propagation delay

CP to TC

4.5

Fig.8

tPLH

propagation delay

CP to TC

4.5

Fig.8

tPHL

propagation delay

CET to TC

4.5

Fig.9

tPLH

propagation delay

CET to TC

4.5

Fig.9

tTHL/ tTLH

output transition time

4.5

Figs 8 and 9

clock pulse width

HIGH or LOW

4.5

Fig.8

tsu

set-up time

Dn to CP

4.5

Fig.9

tsu

set-up time

PE to CP

4.5

Fig.9

tsu

set-up time

CEP, CET to CP

4.5

Fig.12

tsu

set-up time

MR to CP

4.5

Fig.11

hold time

Dn, PE, CEP,

CET, MR to CP

−10

4.5

Figs 9, 11 and 12

fmax

maximum clock

pulse frequency

MHz

4.5

Fig.8

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