74HC190D datasheet(13/13 Pages) PHILIPS

Teilenummer	74HC190D

Bauteilbeschribung	Presettable synchronous BCD decade up/down counter

PDF	13 Pages

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Hersteller	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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13 / 13 page

December 1990

Philips Semiconductors

Product speciﬁcation

Presettable synchronous BCD decade

up/down counter

74HC/HCT190

PACKAGE OUTLINES

See

“74HC/HCT/HCU/HCMOS Logic Package Outlines”.

Fig.16 Waveforms showing the set-up and hold times from the parallel load input (PL) to the data input (Dn).

The shaded areas indicate when the input is

permitted to change for predictable output

performance.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

Fig.17 Waveforms showing the set-up and hold times from the count enable and up/down inputs (CE, U/D) to the

clock (CP).

The shaded areas indicate when the input is

permitted to change for predictable output

performance.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

74HC190D Datenblatt(PDF) 13 Page - NXP Semiconductors